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MEK-2300 with JCT-1100

1. Procedure Confi 1 Press gure in the main menu 2 Then press Te8P to obtain the relevant Serial no Sensing ele ment part no and propeller part no 3 Press Sensor and enter the correct part no see order or Fig 24 4 Press Propelle and enter the correct part no see order or Fig 24 5 Press Send to transfer to the transmitter 5 2 2 Adjusting feedback in water When the transmitter rotates in water the feedback signal is dependent primarily on the type of sensing element selected it s size the transmit ter s speed of rotation determined by the mains power frequency and the transmitter s pre set strength the torque in relation to the feedback sig nal These values can be determined in advance and as a consequence the transmitter need not be run in water The water value of the feedback sig nal is important for calibration accuracy since one calibration point that is usually quite different from the normal operating range can be prede termined Applies only for Multi point calibration gt If the transmitter is to operate at very low consistencies lower than approximately 1 1 5 it is recommended that where possible the transmitter should actually be run in water in the relevant installation In this case the true feedback value can be read manually at and entered at Beate fu
2. mee vm X m gm Press 1 00 for the lower limit 4 mA EE TE ERES 3 Press 4 008 andsetthe upper limit 20 mA 4 Check that the settings are correct first Send the new settings to the Send transmitter Press data 66 MEK 2300 Operating instructions 01218 56 2e BTG 2002 6 1 Offset adjustment 6 Special calibration functions 6 1 Offset adjustment See section 5 1 2 on page 35 item C c Offset adjustment can be done in two ways A Based on a laboratory sample B Based on a deviation detected from laboratory samples c Theentire calibration curve is shifted bodily on the basis of a single point so it is most important that the laboratory sample value for that point is correct The offset adjustment which is a zero point displacement can be made to all types of calibrations but should normally be used only when a multi point calibration has been made A Offset adjustment based on a laboratory sample Procedure 1 Goto MAIN MENU option 28 Take n 2 Press sample and save the consistency value in the memory in the normal manner taking correct laboratory samples at the same time Load 3 Then load the corresponding laboratory sample value cons x x xx The consistency according to the original curve appears in the display and after pressing calc the offset consistency ap
3. 11218 56 2e MEK 2300 Installation instructions 35 BTG 2002 4 3 High pressure pipe installations 25bar 226 C Fig 23 Installation of high pressure weld in stud 200 250 mm 8 in 10 in pipe 168 3 60 c Additional information according to Fig 22 c Be aware of the restrictions using this weld in stud See section 4 3 2 1 4 3 2 3 Calculating material thickness in main pipe Fig 24 and Fig 25 Example for PN 25 and PN16 gt The data given in Fig 24 and Fig 25 are only valid for the weld in stud used in pipes 250 mm 10 in gt Use valid standard for exact calculation c The same weld in stud is used for 25 bar and 16 bar installations The main pipe dimension is different Use a valid calculation standard for an exact calculation The devia tion from Swedish Standard is as a rule of minor importance However when tmin in the diagram approaches the thickness of the selected pipe we recommend an exact calculation Do also note that the manufacturing tolerance of the selected pipe must be included in your calculation If the calculation the diagram shows that the existing main pipe is of insuffi cient thickness and therefore needs to be strengthened 1 e have a thicker wall ensure that the strengthened pipe extends to a minimum of 250 mm SS2343 0D 800 mm PN16 respectively 320 mm SS2343 0D 800 mm PN25 on each side of the weld
4. D Updated calibration see section 5 4 on page 50 Updated calibration works just like the normal multi point calibration with one exception when you make a multi point calibration the previous calibration is erased from the memory whereas an updated calibra tion adds new points to the curve without erasing the existing points E Calibration constants see section 5 5 on page 50 As previously mentioned the calibration curve is defined by three cali bration constants KO K1 and K2 It is also possible to make a calibration by loading manually calculated values for these constants KO is the value of the calibration line where it intersects the Y axis K1 is the inclination coefficient of the calibration line K2 is the exponential rate of increase of the inclination line c K2 must not be negative see section 5 5 on page 50 and section 5 6 on page 52 5 1 2 Other functions that affect calibration These functions are Damping measuring span offset adjustment tem perature compensation load feedback calibration curve trend and sim ulation mode c The basic settings of the transmitter also affect the calibration A Damping see section 5 7 on page 65 A time constant damping factor usually needs to be inserted to stabilize the output signal Its value can range from 1 to 99 seconds Damping is ac complished by filtering the signal through a software controlled low pass filter When making
5. Note that the transmitter s actual output signal is displayed in the main menu s standard window for the output signal display Transfer the change to the transmitter by pressing re The simula tion function will then be disabled automatically If you wish to go back to the original setting you can do this directly on the terminal since this has two separate memories see section 9 on page 83 Goto amp and transfer the relevant measuring range data back to the editing memory za Another option is to re read the transmitter data to the terminal by pressing d s 78 MEK 2300 Operating instructions BTG 2002 01218 56 2e 6 7 Simulation mode 7 Production calculation This function is available as an option from BTG and cannot be accessed until a special code is entered The program is prepared for the function which can be accessed when a special code is entered c To obtain this function the transmitter must be equipped with a special version of the Sensor processor card Order no 74457607 Setting 1 Calibrate the flow transmitter against the consistency transmitter The flow transmitter should produce an output signal of 4 20 mA A Goto Se ES B Enter the code 1945 C Step down to Prod by pressing the ka button D Determine the measuring span over which the flow may vary e g
6. e Familiarize yourself with the operation of the transmitter program before starting the transmitter Make sure the direction of the motor is checked before admitting pulp to the line e Check that the actual Set point and Max feedback values agrees with corresponding values stated in the attached test protocol e Is a suitable sampling valve for pulp located close to the transmitter This is very important for calibration and check up of the transmitter We recommend BTG sampling valves e When calibrating the transmitter make sure that representative samples are taken from the line They should always be taken in the same way which also applies for the laboratory routines e When operating the hand held terminal make sure that all data are correct before sending them to the transmitter e Check transmitter performance regularly See section 16 on page 99 e Check the flushing water supply once a week Take remedial action immediately if necessary e Check the condition of the drive belt every six months e Check that the transmitter junction box hand held terminal are not exposed to abnormal vibration or splashing which can lead to Safety Recommendations poorer performance and make repairs and servicing more difficult see relevant section in Manual c Type sign information see installation instructions in manual 01218 56 2e MEK 2300 Operating instructions 1 BTG 2002 MEK 2300 Operating inst
7. Brass nickel coated For US and Canada no fittings are included Supply voltage Supply voltage options Power consumption Built in multi voltage power supply 100 240 V AC 50 60 Hz 85 264 V AC 47 63 Hz max 50 VA automatic setting Output voltage 24 V DC regulated or Customer provided 24 V DC regulated voltage 24 V DC 10 max ripple 240 mV peek to peek total regulation 2 Maximum 50 VA for AC supply or Maximum 600 mA including hand held terminal 200 mA for 24 V DC supply Standardization and approvals Standardization Quality assured in accordance with ISO 9001 Designed in accordance with relevant CE standards Low Voltage Directive 73 23 CEE EN61010 1 April 93 EMC Directive 89 336 CEE EN 50081 2 Aug 93 EN 50082 2 Mar 95 Approvals C Equipment type Permanently connected equipment The product is designed for industrial use Installation category III Shock protection Class I Pollution degree 2 Insulation category I IP Code IP65 NEMA 4X Installation altitude 2000m MSL AX218 56 2e MEK 2300 JCT 1100 Product introduction 1 3 BTG 2002 1 3 Type sign explanations Fig 2 PUN NO 10 11 1 3 Type sign explanations Type sign for junction box Manufacturer CE marking C Tick marking CSA marking AC version Warning sign Product Voltage DC Version 24 VDC 10 Apparent power DC Version 2A DC Manufactur
8. Terminal 3800 Sample En Rec spare parts Item No c CO sn mm A Part No A0012096 A0012146 15020696 A0006601 A0007039 27014281 A0006635 A0012286 A0014274 46022638 46027330 A0012203 A0012229 A0012401 A0015958 1 2 Spare Part Junction box complete Circuit board with power supply unit Screw RXK H 2 0x9 5 Display circuit board Wiring for display panel Shield gasket Terminal connection Reinforcement plate Isolation amplifier Fuse Power supply unit Front panel complete Connection cable Front panel sticker Sticker inside terminal box 3 4 Description 100 240 V AC version SPC SS al 4212 06 DC DC Hart TR5 2AT 250V Pulse Transmitter MEK 2300 Connection MEK 2300 AX218 56 2e MEK 2300 JCT 1100 Parts list BTG 2002 6 4 JCT 1100 without power supply unit NA market 6 4 JCT 1100 without power supply unit NA market ch els g o iue e D I p n C TI D 14 13 12 11 10 9 8 7 item Rec No spare Qty Part No Spare Part Description j parts A0012104 Junction box complete 24 V DC ve
9. 4 6 1 Installing the transmitter A a Leave the protective cover on the transmitter until it is to be in stalled Warning Assure yourself that the pipe is empty b Check that the stud bolt supplied is fitted in the upper hole on the before opening it up flange of the measuring vessel weld in stud c Check that the O ring on the flange is in position d Carefully lift the transmitter to a point from which it can be slipped onto the stud bolt c Do not allow the sensing element to abut or become damaged by the edge of the flange see Fig 30 gt Do not rest the mechanical seal on the edge of the flange Slip the transmitter directly onto the stud bolt see Fig 30 gt Do not lift or turn the transmitter round using the sensing element see Fig 31 e Fasten the transmitter in position with the 15 nuts bolts and wash ers supplied oiling and tightening the bolts alternately preferably with the help of a torque wrench gt Use recommended torque settings for transmitter fastening screw e Tightening torque for 8 mm bolts 24 Nm 2 4 kpm 17 7 ft Ibs Tightening torque for 10 mm bolts 47 Nm 4 7 kpm 34 7 ft lbs MEK 2300 Installation instructions 11218 56 2e BTG 2002 4 6 Installation of the transmitter Fig 30 Warning sign installation gt Slip the transmitter onto the stud screw The edge of the measuring vessel must not touch the mechanical seal and the sensing element Fig
10. 5 5 Updated calibration See section 5 1 1 on page 32 item D Updated calibration can be used at any time to improve an existing single or multi point calibration A total of ten sample points includ ing FEEDBACK IN WATER can be entered in each measuring range This calibration option works in exactly the same way as the multi point calibration described above The only difference is that you select option at li the ration mode which means that the existing calibration is not erased Any sample taken can be updated with a new sample at any time Calibration with given constants See section 5 1 1 on page 32 item E The three calibration constants KO K1 and K2 define the calibration curve 1 Itisa simple matter to enter new constants under Beate fine Step down to accurate constant with EH and give ac tual input 2 Transfer the calibration to the transmitter Press S82 Check that all data that is displayed is correct If a code has been entered Yes see section 8 on page 81 key this in correctly and press to transfer all the data to the transmitter If the message Transmission fail appear there is a communication problem Refer to the Service Manual and section 4 on page 25 item 5 3 Press 7 in the main menu Check the stability of the signal over time If necessary go back to the main menu and set a suitable time cons
11. BTG 2002 6 6 Trend Trend See section 5 1 2 on page 35 item G This function is in the main menu under The time scale of the display is changed by pressing Minutes Registra tion does not occur until the function in the menu is accessed and starts from beginning again when Minutes is pressed The 4 20 mA output signal is displayed as 0 10090 This means that the resolution is relatively low approximately 1 0 16 mA but the dis play is still a useful tool when setting the time constant 1 for ex ample Simul When simulating different output signal settings the mode function can be used to view the result without the actual output signal being af fected Refer also to section 6 7 on page 78 01218 56 2e MEK 2300 Operating instructions 77 BTG 2002 6 7 Simulation mode 6 7 Simulation mode See section 5 1 2 on page 35 Item H Misc This function is in the main menu under menu S ati and in the mode The function is used to change the adjustment of the calibration setting for example without the actual output signal being affected Simul When the function is enabled me displays the simulated output signal under the main menu s Ted button where in this case the button displays Smile ion on
12. Cons and enter the value 3 Push Calc Alt enter the actual con TS EE ry at the same time taking a laboratory sample and then load the resulting data in the normal way If the offset adjustment needed is already known the value can be directly entered Any compensation currently applied can be read directly from the Offset display and erased or altered at the next check A valuable way to use this function is to compensate for coating of the sensing element as for example happens in certain types of bleach plants Coating on the sensor causes the signal to rise It is possible to tell from experience when the sensing element has become so thickly coated as to interfere with the functioning of the transmitter D Temperature compensation see section 6 2 on page 68 c This function is an option which can only be reached by entering an access code obtained from BTG If the code is not entered the function does not appear in the display The transmitter sensor processor card must be equipped with components for this function Certain external factors affect the transmitter s shear force and thus the signal This effect is normally negligible The function can be used in cases where for example the temperature regularly undergoes wide fluctuations gt 10 C 50 F It will be found in the main menu under Confi 3 i ge T
13. 120 450 m h Adjust the flow meter for a slight wider span e g 100 500 m h i e 4 mA output signal 100 m h and 20 mA output signal 2 500 m h E Enter the minimum limit of the flow span at 4 mA m h XX e g 100 Enter the maximum limit at 20 mA nr h xx e g 500 F Calibrate the flow transmitter against the consistency trans mitter Connect a simulator capable of supplying the appro priate mA signal to the AUX in terminals in the JCT 1100 junction box See the wiring diagram in the Installation in structions section of the JCT 1100 manual included in this manual G First adjust the minimum signal for the measuring span e g 4 mA at 100 m h and press 97 H The raw signal AUX input should now be displayed Press Rawsin when the raw signal is stable 01218 56 2e MEK 2300 Operating instructions 79 BTG 2002 6 7 Simulation mode I Then adjust the maximum signal for the measuring span e g 20 mA at 500 m h and press Rawsign when the raw signal is stable 2 Theflow transmitter is now calibrated against the consistency trans mitter 3 Connect the temperature transmitter to the AUX in terminals in the JCT 1100 junction box See the wiring diagram in the Installation instructions section of the JCT 1100 manual included in this manu al The flow rate value is obtained at Trend The function can be disabled by using the button E Continue pressin
14. 13 EM H0Eqp994 yw jeddn qum samo oBuel Asusjsisuo9 CIXX OIXX TIXX OIXX i UO SIXX TIXX SIXX CIXX TIXX OIXX CIXX 0IXX CIXX OIXX i UO STXX TTXX STXX TIXX TIXX OIXX TIXX OIXX TIXX OIXX i UO SIXX TIXX SIXX CIXX TIXX OIXX TIXX OIXX TIXX OIXX i UO SIXX TIXX SIXX CIXX TIXX 00XX 00 2 0022 0002 ed sayWwsuely EPET SS EPET SS OWS YST Koj ojsvH EpEZ SS EPET SS OWS vSc Ko o seH EPET SS EPET SS OWS vSC Koj osvH EpEZ SS EvEC SS OWS YST Koj ojsvH EEZ SS EPET SS EPET SS 5 EJ onsuejoejeu3 SEILITCL SLEGSTEL VVVOLTET LLLEGTEL 66t6 1 T 9I 6 I I 8SESTIEL 9OSOZIET ELEGETET S8CIVIEL SOEGETET 9LWEIEI PLESTIEL S6VOCIEI 98L100 L Guiuesisej M989S pexi4 ou Bulapio T9 9000V 8L86SEYL S6L6SEVL S 9000V 0986StVL L8L6SCVL 9 9000V TS86SE TL GLLOSETL 8 9000V Sv86SEVL TOL6SEVL U9 SeJ M999S ISeuds ou BULSpIO 89 MEK 2300 Operating instructions BTG 2002 01218 56 2e 10 2 Service functions and signal calibration Fig 24 guidance Sensing elements are made in a number of basic designs A B C etc each of a certain size 1 Sensing elements are available with a choice of fastening systems see Service Manual 2 Different materials are also available The standard material is SS 2343 AISI 316 stainless steel Other
15. 3 2 Programming the transmitter with hand held terminal SPC 1000 general i Calib ration Offset Send data 61 7 1004 is 3 35 20 mA 4 00 Tag no isc Print 257234 61 7 100 Cons 3 35 Communication Terminal Prints all calibration data and transmitter settings on an external printer or down loads them to a PC Displays the relevant Feedback signal output signal and consistency and the output signal s variation over time 0 55 minutes Displays the position in the process TAG No measuring range in opera tion according to external connection Output signal in 0 100906 Present consistency in according to calibration and the type of transmitter that is con nected B General programming instructions These instructions apply only ware revisions within version to software version 1 and any future soft 1 such as 1 1 1 1 1 1 2 etc c See section 15 on page 97 for program modifications in relation to previous versions The following general instructions will apply to the rest of this manual Example Press the EM nation button on the display that has this desig Example 20 s This should appear on the display The program is menu based with direct display of the current menu In other words the menu tree struc
16. 4 2 3 1 General c Shut off valves should only be used with the standard model of the MEK 2300 and where consistency does not exceed approximately 4 Weld in studs can be ordered ready fitted with slide gate shut off valves This makes it possible to remove the transmitter while the pipe is filled with pulp see Fig 18 Note that shut off valves should only be used in low pressure installa tions and with non hazardous media as a reliable seal over the valve can not be guaranteed Each shut off valve is supplied welded to the weld in stud A water valve for flushing the measuring chamber and a drain valve for emptying the measuring chamber will also be required These are not in cluded in the delivery 4 2 3 2 Installation in pipe a Turn the valve so that its hand wheel is uppermost b The stud should be profiled and welded in the manner described in section 4 2 2 above The length of the measuring chamber should be kept as short as possible approximately 180 mm 7 in c Brace the valve if the pipe is subject to vibration and or is of small diameter 11218 56 2e MEK 2300 Installation instructions 29 BTG 2002 4 2 Low pressure pipe installations PN10 Fig 18 Installation with shut off valve Weld in stud or measuring vessel Measuring chamber Slide gate valve Water valve size R in for clean flushing of the joining thread in the nipple coned according to ISO 7 1 1 4 BSP male
17. 5 Drain valve size R 1 in 1 in BSP for emptying of the measuring chamber Nipple joining thread coned according to ISO 7 1 1in BSP male Tube to outlet D c Note Items 4 and 5 are not part of the delivery 30 MEK 2300 Installation instructions BTG 2002 11218 56 2e 4 3 High pressure pipe installations 25bar 226 C Warning Assure yourself that the pipe is empty before opening it up 4 3 High pressure pipe installations 25bar 226 C Where pressure is 210 bar at 20 C 150 psi at 68 F and pipe diameter is 250 mm 10 in the transmitter should be connected to the pulp line via a measuring vessel See Fig 19 and Fig 20 See section 8 2 Where pressure is 210 bar at 20 C 150 psi at 68 F and pipe diameter is gt 300 mm 12 in the transmitter should be connected to the pulp line via a weld in stud See Fig 22 See section 8 2 4 3 1 Installation with measuring vessel 4 3 1 1 General Standard measuring vessels for high pressure applications are designed for weld connection See Fig 19 Measuring vessels equipped for flange connection in conformity with DIN 2655 ANSI 300 Ibs or other stan dards are available to order see Fig 20 c The dimensions for the weld connected measuring vessels weld ends are given in section 8 3 c The highest operating pressure temperature to which the measuring vessel is to be e
18. A 1 1 097 109 2 2481 107 Velocity m s Acceleration m s 0 98066 106 1 2 2046 DSIRIY kg m 0 44482 106 0 45359 L Force N newton kg m s i Pressure mech Tension Pa Pascal N m Velocity x Pressure bar bar 100 000 Pa 0 1 Mpa m s km h fps mile h knot Dynamic viscosity Pa s Pascal second 1 3 6 3 2808 2 2369 1 9438 Kinetic viscosity m s 0 27778 1 0 91134 0 62137 0 53996 Energy heat quantity J joule Nm Ws 0 3048 1 0973 1 0 68182 0 59248 Effect energy current W Watt J s Nm s 0 44704 1 6093 1 4667 1 0 86898 Electric voltage V Volt Nm As W A 0 51444 1 852 1 6878 1 1508 1 Electric resistance Ohm Nm A s 1 kn 1 nautic mile h Electric quantity charge 1 C Coulomb As E Ke p Length orque Meter inch foot yard mile nautic mile kpm lbf in lbf ft m in ft yd 0 10197 8 8508 0 73156 1 39 370 3 2808 1 0936 0 62137 10 0 53996 10 9 8066 1 86 796 7 2330 25 4 1 83 333400 27 7718 15 783 105 13 715 106 0 11299 11 521 1 83 333 10 0 3048 12 1 0 33333 0 18939 10 0 16458 10 1 3558 0 13826 12 1 0 9144 36 3 1 0 56818 10 0 49374 10 1 6093 10 63 36 10 5 28 10 1 76 10 1 0 86898 1 852 100 72 913 10 6 0761 10 2254 10 1 1508 1 RA 1 Angstrom 10710 m Area i m in ft yd acre mile 1 1 5500 10 10 764 1 1960 0 24710 10 0 38610 10 0 64516 10 1 6 90444 10 0 77161 10 0 15942 10 6 0 24910 10 92 903 107 144 1 0 11111 22 957 106 35 870 10 0 83613 1 296 109 9 1 0 20661 1
19. Inspection of the accuracy calibration of the consistency transmitter Inspection can be made in two ways 1 By means of a special torque brake with the transmitter removed from the pipe alternatively with the transmitter mounted in the pipe and no pulp in the pipe The torque brake is an accessory to the consistency transmitter fitted to the measuring part side of the transmitter By varying the current to the torque brake different torques corresponding to different pulp consistencies can be used See special instructions for the torque brake D M750 10 The transmitter signal in this case the feedback signal can then be adjusted to a certain level corresponding to the applied torque 100 kpmm torque shall correspond to 100 feedback MEK 2300 2 Against laboratory samples The transmitter is then mounted in the pipe and running Comparison to lab samples implies several sources of error Origi nally the transmitter is as a rule calibrated against a great number of lab samples and adjusted accordingly Thus comparison to one lab sample only implies a source of error The sample can be extracted from the pipe in a number of ways Different types of sampling valves respectively common ball valves result in a various number off more or less serious sources of error which cannot be discussed here The main points for a good sampling are generally that the samples shall be extracted from the pipe in a uniform repeatab
20. MEK 2300 Connection MEK 2300 AX218 56 2e MEK 2300 JCT 1100 Parts list BTG 2002 6 2 JCT 1100 without power supply unit 6 2 JCT 1100 without power supply unit IT o n e 3 4 C J o H ud 9 LI El CIT ES TEL el ee 16 15 14 13 121110 9 9 8 ltem Rec mey No Spare Qty Part No Spare Part Description parts a A0012088 Junction box complete 24 V DC version 1 1 A0012336 Main circuit board without power supply unit 2 19 15020696 Screw RXK H 2 0x9 5 3 1 A0006601 Display circuit board 4 1 A0007039 Wiring for display panel 5 1 27014281 Shield gasket 6 1 A0006635 Terminal connection SPC 7 1 A0012138 Reinforcement plate SS al 4212 06 8 1 46026266 Cable fitting Pg7 9 1 A0014274 Isolation amplifier DC DC Hart 10 1 A0012229 Connection cable Transmitter 11 4 46022638 Fuse TR5 2AT 250V 12 3 46024063 Cable fitting Pg 11 13 1 A0014258 24V adapter circuit board 14 1 A0012203 Front panel complete 15 1 A0012401 Front panel sticker MEK 2300 16 1 A0015958 Sticker inside terminal box Connection MEK 2300 6 36 MEK 2300 JCT 1100 Parts list AX218 56 2e BTG 2002 6 3 JCT 1100 with power supply unit NA market 6 3 JCT 1100 with power supply unit NA market
21. S2 New model of mechanical seal part no 27010487 mounted See Parts List SP218 56 pos 215 58 MEK 2300 Installation instructions 11218 56 2e BTG 2002 7 1 Transmitter type sign 7 1 11 Wetted parts made of SS 2343 SMO HC SS 2343 Standard material stainless steel 82343 AISI 316 SS DIN 1 4436 SMO Stainless steel 254 SMO HC Nickel alloy Hastelloy C 276 See data sheets D218 56 and D750 01 7 1 12 Pressure PN 10 25 bar 226 C PN 10 Pressure class rating 25 bar 226 C Pressure temperature rating See data sheets D218 56 and D750 01 7 1 13 C Tick mark for Australia The device complies with the amendments and requirements of EN 61010 1 11218 56 2e MEK 2300 Installation instructions BTG 2002 59 7 2 Junction box type sign 7 2 7 3 Junction box type sign For information regarding the type sign for the JCT 1100 junction box see the System description section of the JCT 1100 manual included in this manual Measuring vessel weld in stud low pressure models type sign BTG Kalle Inventing AB SAFFLE SWEDEN Design 248 F 116 psig NOTE WHEN USING WELD IN STUD CHECK THICKNESS OF MAIN PIPE AGAINST OPERATING CONDITIO See explanation for transmitter type sign and data sheet D750 01 The parts are designed and manufactured according to the Swedish pres sure vessel codes AFS 1988 11 RN 78 TKN 97 The parts are calculated according to American N
22. and when carrying out service Use warning signs for safety information These safety recommendations apply to the transmitter fitted with an AC powered junction box Mounting parts such as measuring vessels and weld in studs are dealt with in accordance with the PED directive and with the pressure vessel standards of the respective countries For good personal and functional safety Use only parts which 2 2 have been manufactured or approved by BTG Mounting parts such as measuring vessels and weld in studs have been manufactured by BTG in accordance with EU s Pressure Equipment Di rective PED Do not accept parts which have not been manufactured by BTG and follow the current instructions and standards during installation Selecting a transmitter model and assembly parts Pressurized parts must be suited to the current maximum pipe pressure in relation to the temperature see the data sheet Select a material for the parts which come into contact with the medium so that corrosion does not occur see data sheet CAUTION The shut off valves see II 218 56 section 4 2 3 should be used only in low pressure installations and with non corrosive media as we cannot guarantee complete tightness over the valve SR218 56 2e MEK 2300 Safety recommendations 3 BTG 2002 2 Safety recommendations for consistency transmitters in the MEK 2300 Family AN Assure yourself that the pipe is empty before open ing it u
23. method results in a more accurate measurement during initial start up The reason for this is that the predefined calibration constants have been calculated from BTG s wide experience from actual field installations We recommend that multi point calibration Item C below is used to fine tune the transmitter In this method predefined calibration constants in the transmitter are used and are adopted to process characteristics with an offset calibration This is a fast method with which only one laboratory sample is necessary The resulting calibration is good within a wide range about 1 consis tency from the calibration point This method can be used only with sensor B MEK 2300 Operating instructions 01218 56 2e BTG 2002 5 1 General remarks on calibration and sampling Fig 16 Calibration functions menu B Single point calibration see section 5 3 2 on page 44 This method is used to get started quickly and obtain a output signal and in cases where the consistency is not allowed to vary for purposes of cal ibration This method is used to get started quickly and obtain an output signal and in cases where consistency must be stable due to calibration A single point calibration is based on one single calibration value A cal ibration point is achieved by entering the topical raw signal feedback and simultaneously extracting a lab sample The calibration will n
24. 7 Press The data for the respective measuring range is now available in the terminal for further processing 58 MEK 2300 Operating instructions 01218 56 2e BTG 2002 5 6 Evaluation and documentation of calibration SPC 1 000 Documentation program for Windows Version 1 0 px Copyright 1995 2 Al rights reserved 5 6 4 Documenting calibration using a personal computer PC 5 6 4 1 Installation Document PC Installation The SPC 1000 terminal program comes with an automated installation program called setup Installing the terminal communication program a Start Windows Insert the installation diskette marked SPC 1000 Documentation program for Windows into drive A b Choose File from the Program Manager main menu c Choose Run d In the Command Line text box type a setup then choose OK e Follow the instructions and the program will be installed on your hard drive Connection and starting your program Arrange a suitable library in the File manager to help you to keep track of downloaded files Tag no s 1 Plug the serial cable into a free comm port on your computer and into the hand held terminal marked Printer 2 Double click on the BTG icon Double click on the SPC 1000 icon 4 Click on CommPort Settings and select the connected comm port 5 Click on CommPort Port open to open your selected comm port If you click once more on port open
25. Introduction 1 Before you start 1 1 Introduction This manual contains instructions for planning and implementing the in stallation of the BTG MEK 2300 in line consistency transmitter The MEK 2300 is the basic model in a series of highly specialized trans mitters optimized for their individual application ranges If you are in doubt about whether the model you plan to install is the same in all respects as the model described in this manual or you have any questions about installation please get in touch with your BTG sales engineer When you are satisfied that your MEK 2300 has been correctly installed and you are ready to power up the system for calibration please turn to section 6 Quick start checklist Double check items in the list before powering up This list can help en sure a trouble free initialization of your system Following this introductory section Section 1 are the following 1 Basic system description This section introduces the essential components of the system It also includes important information about the dimensions of the components including working space and installation clearance requirements 2 Planning an installation This section is vital to the correct layout of the system components for the end user engineer and or consultant It contains advice on locating the transmitter in your process and positioning the junc tion box relative to the transmitter 3 Installing t
26. Offset pears inthe x x key in the main menu 4 Press da to transfer the offset adjustment to the transmitter 5 The offset adjustment can be cancelled at 868 if you give the input the value zero 01218 56 2e MEK 2300 Operating instructions 67 BTG 2002 6 2 Compensation for varying temperature 6 2 B Offset adjustment based on a deviation that is detected A deviation can be entered directly if a deviation from the laboratory val ues is detected during regular monitoring of a transmitter s display for example Note however that the deviation should be verified by several laboratory samples before carrying out zero point adjustment Procedure Offset 1 Goto the main menu function x xx 2 Press Xe in the sub menu and enter the deviation that is detect ed 3 Transfer the value to the transmitter using ta Clear the value by going back to the function and entering 0 Compensation for varying temperature See section 5 1 2 on page 35 item D This function will be found in main menu sub menu EE button as signed FR Various types of compensation transmitters can be connected A PT 100 transmitter with mA output is normally used for temperature compensa tion Since the compensation input is a universal input for 4 20 mA it can also be used for other types of compensation equipment The function should be used only with multi point
27. Signal cables for Output Range Select Alarm AUX in etc Shielded 10096 twisted pair Min 2 x 0 3 mm 2 x AWG24 Typical size is 2 x 0 75 mm 2 x AWGI8 c BTG recommends that separate cables be used for analog and digital signals Multiconductor cables can be used 3 12 MEK 2300 JCT 1100 Installation instructions AX218 56 2e BTG 2002 3 3 Cabling 3 3 2 Guidelines for cable connections e Do not place signal cables and power supply cables close together This may cause interference e Always avoid loops of cable leads in the junction box and make the leads as short as possible e The shields for the Alarm AUX in and Range select cables should not be connected in the junction box unless the mill standard specifically requires it Normally these shields are grounded to instrument earth at the mill end e BTG recommends that the shield for the output signal cable is connected to CONN21 in the junction box CONN21 is connected to PE via a capacitor Fig 8 Grounding of cable 7 shields Power supply or transmitter cable Nut Sealing ring Insert ring Cable shield Socket Free wires 2 N O OI B OP Ww FE OD Cable shields should be connected as shown in fig 9 below Fig 9 Connection of signal cable shields BTG 1 System cable transmitter The cable shield must be connected to PE at both ends 2 Output signal cable In the JCT 1100 the shield is connected to CONN2
28. Simulation of SPC 1000 J Me dl Y BIG 4 1 SPCwin 14 MEK 2300 Operating instructions 01218 56 2e BTG 2002 3 1 General 3 Operating instructions 3 1 General The transmitter can be programmed from the hand held terminal SPC 1000 from the SPCwin PC program or from the JCT 1100 junction box limited functions Programming of the transmitter from SPCwin is the same as from the SPC 1000 hand held terminal This section describes programming of the transmitter from either For further information about SPCwin see section 2 8 on page 14 For instructions regarding how the transmitter is programmed from the JCT 1100 see the Operation instruction section of the JCT 1100 manual included in this manual 01218 56 2e MEK 2300 Operating instructions 15 BTG 2002 3 2 Programming the transmitter with hand held terminal SPC 1000 general Fig 8 Using the touch screen 3 2 Programming the transmitter with hand held terminal SPC 1000 general instructions The software is designed for simple user friendly programming com bined with a high degree of flexibility A certain amount of training us ing simulation in a comfortable workplace accelerates the learning process and reduces the risk of mistakes in actual process operation The software is designed for self instruction but calls for a basic under standing of how the transmitter works HELP functions and other important guidelines are d
29. Voltage Directive 73 23 EEC EMC Directive 89 336 EEC Per Waernes MD AX218 56 2e MEK 2300 JCT 1100 Product introduction BTG 2002 1 4 CE Declaration of conformity MEK 2300 JCT 1100 Product introduction BTG 2002 AX218 56 2e 1 4 CE Declaration of conformity 2 Safety recommendations See the corresponding section in the transmitter User Manual for Safety recommendations AX218 56 2e MEK 2300 JCT 1100 Safety recommendations 2 7 BTG 2002 1 4 CE Declaration of conformity MEK 2300 JCT 1100 Safety recommendations BTG 2002 AX218 56 2e 3 1 Mounting 3 Installation instructions 3 1 Mounting Locate the junction box close to the transmitter and sampling valve to achieve a convenient connection of the SPC 1000 hand held terminal for calibration and monitoring For convenient working height and a good operating position the bottom of the junction box should be approximately 1 4 m 4 6 ft above the floor The SPC 1000 can be placed in a holder if one has been mounted close to the junction box Install the box in a position where it is protected from mechanical dam age Fig 3 Recommended clearances c The front cover swings open and is hinged on the left side 300 12 PENSA Fig 4 Dimensions i Tu No I E j f 34 285 a S 442
30. a measuring vessel or weld in stud depending on pipe dimensions that is welded or flange fitted to the pipe system The hand held terminal allows the operator to set up and monitor the sys tem and includes a liquid crystal display LCD with a touch screen key pad 11218 56 2e MEK 2300 Installation instructions 5 BTG 2002 2 2 Working space and installation clearance requirements 2 2 2 1 1 Conformity to CE directives and CSA approval The entire system consisting of the junction box including the BTG orig inal power supply the transmitter and the hand held terminal and the specified connecting cables see the Installation instructions section of the JCT 1100 manual included in this manual is designed to meet the following CE directives and their associated standards e Machine Directive 93 44EEC e PED Directive 97 23 EEC e EMC Directive 89 336 EEC e Low voltage directive 73 23 EEC The junction box JCT 1100 is CSA approved and the transmitter motor can be order CSA approved Working space and installation clearance requirements Always ensure that there is sufficient room for the full depth of the sys tem before installing the junction box transmitter and necessary compo nents Make allowance for the need to open the junction box and connecting the hand held terminal removing the transmitter from its mounting assembly as well as allowing sufficient working space to do this It is the responsibility of the e
31. a site for the JCT 1100 junction box see the Installation instruction section of the JCT 1100 manual included in this manual 18 MEK 2300 Installation instructions 11218 56 2e BTG 2002 4 1 General 4 Installing the transmitter 4 1 Warning To avoid personal injuries burning injuries aggressive chemical injuries etc it is of outmost importance that the pipe is depressurized and empty before opening it for installation or removal of the equipment 4 2 General 4 1 1 Operating principle The MEK 2300 is based on a shaft system belt driven from an electric motor The shaft system consists of an inner shaft the measuring shaft that can move within a few degrees of arc independently of the outer shaft and an outer shaft the drive shaft with a propeller that draws a continuous pulp sample past a sensor connected to the measuring shaft The rotation of the sensor in the pulp sample results in torque This torque retards the measuring shaft in relation to the drive shaft The de gree of retardation is detected by the transmitter which in its turn pro duces a feedback force to counterbalance the torque The torque angle between the shafts is fed back and balanced to give a constant value via an electromagnetic feedback system The signal is then converted into a 4 20 mA output signal with a superimposed digital signal according to the Hart protocol 4 1 2 Positioning the transmitter The transmitter i
32. and the back up memory Fig 23 Storing menu Transmitter Read data f Send Back up card data i Misc Backup data x SPC 1000 m 5 E Read data Store data The back up memory data is not affected by the different actions per formed on the terminal except when data is entered press dita When pressing Read data all previous data both in editing and the backup memory are erased and replaced by the new data entered from the transmitter memory The back up memory can be used to retrieve the original transmitter data even when changes were made via the terminal The terminal does not need to be connected to the transmitter Press Misc data When back up range 1 is pressed the back up memory data is transferred to the editing memory on measuring range 1 Implement the correspond ing action for the remaining measuring ranges as well gt All settings in the editing memory are now deleted and replaced by the data in the back up memory 01218 56 2e MEK 2300 Operating instructions 83 BTG 2002 6 7 Simulation mode 84 MEK 2300 Operating instructions BTG 2002 01218 56 2e 10 1 Checking measured set values 10 Trouble shooting functions 10 1 A number of functions are important in connection with trouble shooting the tra
33. as a superimposed signal over the 4 20 mA output signal loop The following functions are available e Output signal In percentage of output signal and in mA Identification Instrument supplier BTG and instrument identification TAG no e Alarm information Present signal above or below the set measuring span 4 mA 220 mA e Damping Adjustable setting e Measuring span Adjustable setting gt For details please contact the HART Communication Foundation or BTG 01218 56 2e MEK 2300 Operating instructions 95 BTG 2002 14 1 Digital communication according to the HART protocol 96 MEK 2300 Operating instructions BTG 2002 01218 56 2e 15 1 SPC 1000 hand held terminal 15 Software revisions 15 1 15 2 15 3 SPC 1000 hand held terminal There are two models available the original model SPC 1000 and an up graded model SPC 1000 A Both models can be used with all types of MEK 2300 transmitters and all versions of PCMCIA sensor cards SPC 1000 PCMCIA sensor card Today s MEK 2300 product requires PCMCIA sensor cards versions E or F depending on language version or later The MEK 2300 software version in these PCMCIA sensor cards is 1 3 or later These sensor cards can also be used with all older sensor processor card software versions See section 15 3 below for further information Older PCMCIA sensor card software versions A D have restricted us age in combinatio
34. calibration which should preferably be performed before compensation is calibrated c Record the temperature during multi point calibration The temperature transmitter is connected to the AUX in terminals in the JCT 1100 junction box See the wiring diagram in the Installation in structions section of the JCT 1100 manual included in this manual 68 MEK 2300 Operating instructions 01218 56 2e BTG 2002 6 2 Compensation for varying temperature Setting 1 Calibrate the transmitter against the consistency transmitter A Press in the main menu Confi gure B Enter the code 1945 ig 20 m wsig Rawsig 1023 C Step down to temp by pressing the CIR button Temperatures in C F or any other temperature system D Determine the temperature span within which the process may vary e g 25 55 C Calibrate the transmitter for a somewhat wider measuring span e g 20 60 C Calibrate the temperature transmitter in workshop to re quired measuring span e g 20 C 4 mA and 60 C 20 mA output signal Note It is not necessary to make a complete and precise cal ibration but you must verify that the transmitter s output sig nal actually covers the measuring span and make a note of the signal strength at the minimum and maximum readings These readings can be entered as step F below E Enter the minimum limit of the temperature span a
35. documentation is an excellent comple ment to the ordinary protocol for documentary purposes Recommendation concerning transmitters used for simpler measurements e g for indicating purposes Comparison to lab samples and previous calibration to be made twice a year Recommendation concerning transmitters used for measuring control function of vital importance to the process Comparison to lab samples and previous calibration to be made every month Recommendation concerning transmitters used for measuring control function of vital importance to the process or used for debiting purposes Comparison to lab samples and previous calibration to be made once a week or after a considerable change of the process variables Gained experiences concerning necessary extent of comparison affect the above recommendations which should be considered general MEK 2300 Operating instructions 01218 56 2e BTG 2002 16 6 Maintenance of the transmitter 16 6 Maintenance of the transmitter The maintenance need will vary heavily as the transmitter position and thereby the influence from the media and ambient conditions vary from case to case Regular maintenance includes e Inspection of flushing water and possible leakage once a week e Inspection of transmission belt condition twice a year e Inspection of wetted rubber details and metal parts for damages twice a year if exposed to aggressive chemicals Inspection
36. in stud provided that maximum consistency is 396 to 4 and the pulp is well mixed in the chest Formation of layers will result in incorrect consistency measurement To prevent this cut the weld in stud to a length of 150 mm 6 in of which 50 mm 2 in should protrude from the inside wall of the chest see Fig 28 Position the transmitter on the periphery of the pulp chest at 30 to 90 angle relative to the mixer and preferably at the same level as the mixer B Overflow box installation The MEK 2340 has an elongated shaft making it suitable for installation in an open overflow box or level box Shaft lengths for distances of 500 700 or 1 000 mm 19 7 27 5 or 39 5 in between the end of the fastening flange and the sensing element are available See Fig 29 for a typical in stallation in an overflow box where the distance is 700 mm 27 5 in c Note that this transmitter has no mechanical seal and an open space between the transmitter flange and the liquid surface must exist Fig 28 Installation in pulp chest 42 MEK 2300 Installation instructions 11218 56 2e BTG 2002 4 5 Pulp chest overflow box stuff box installations Fig 29 Example of level box for MEK 2340 shaft length 700 mm 27 5 in 1 Mounting plate for 11218 56 2e MEK 2300 Installation instructions BTG 2002 43 4 6 Installation of the transmitter 4 6 Installation of the transmitter
37. indicated by the rating plate If the overload protec tion shows a tendency to trip it may be raised by a maximum of 20 but in no case must the external motor temperature exceed 80 C 176 F It can be measured between two cooling flanges on the outside of the motor e Position the START and STOP switches centrally and the safety switch overload protection and contacts close to the motor This will facilitate calibration and maintenance when the motor must be started and stopped several times fig 35 shows a typical ar rangement Where the transmitter s mechanical seal is not water flushed the motor must be interlocked with the pump motor to ensure that the transmitter stops when the pump stops However it must also be possible to jog the motor manually and to lock it in manual con trol 50 MEK 2300 Installation instructions 11218 56 2e BTG 2002 4 8 Connection of electric motor Dry running of the mechanical seal will rapidly cause irreparable damage to the seal Fig 33 Motor wiring diagram Y Connection for e g 380 V AC 50 Hz or 440 V AC 60 Hz A Connection for e g 220V AC 50 Hz or 255V AC 60 Hz see manu facturer s label on the motor Fig 34 Motor junction box Information about connected voltage at de livery c See this label in the motor junction box It shows how the motor is connected at delivery Example Connected for 220 V 50 Hz f Run the motor for sufficient tim
38. installation clearance requirements 2 2 3 Hand held terminal type BTG SPC 1000 The dimensions of the hand held terminal are given in Fig 3 Fig 3 Hand held terminal type SPC 1000 dimensions mm in min ca 0 3m 1ft max ca 2m 6 6ft 1 Telephone jack to junction box 2 Touchstone 3 Rubber casing 5 3 1 8 10 Fig 4 Adapter for terminal connection included with SPC 1000 delivery 1 Mini grippers 2 Connection for SPC 1000 telephone jack MN i e 8 MER 2300 Installation instructions 11218 56 2e BTG 2002 2 2 Working space and installation clearance requirements 2 2 4 Materials All the materials used in the exposed surfaces of the MEK 2300 system are designed and manufactured for use in pulp and paper mill environ ments The system cable is sheathed in PVC The transmitter housing is made of cast aluminum painted with epoxy poly urethan paint Materials used in the submerged parts of the transmitter i e the transmit ter itself any measuring vessel used and any weld in stud are selected based on process conditions and may be of either stainless steel 254 SMO or Hastelloy C 11218 56 2e MEK 2300 Installation instructions 9 BTG 2002 2 2 Working space and installation clearance requirements 10 MEK 2300 Installation instructions BTG 2002 11218 56 2e 3 1 Advice and recommendations 3 1 Calculate t
39. it is not normally nec essary to enter the transmitter s setting Sta Note If pressing Es any previous setting in SPC 1000 not sent to the transmitter is erased 9 Adjusting the measuring range Refer to section A EJ There are four discrete measuring ranges that can be individually calibrated This option is used to improve the accuracy of the trans mitter for example when different pulp qualities are present c The different measuring ranges can be selected and programmed via the hand held terminal but the relevant measuring range for the actual output signal can be set only via the external connection This is accessible on the junction box terminal block The terminal s pre set measuring range e g Range 3 agrees only with the terminal s output signal and consistency display when this measuring range 3 is also connected via the terminal block In the case of the other three measuring ranges 1 2 and 4 all settings in the terminal agree for the respective measuring range except for the output signal and the consistency display By pressing Edit Range 1 Edit Range 2 etc you can step to the relevant measuring range for setting The measuring range is also set for copying the relevant measuring Misc range s back up data to the editing memory See A The following provides detailed step by step instructions with explanations for beginners The terminal s display is usually quite sufficient fo
40. of KO should not deviate by more than a percentage point or so K1 If K1 is negative the FEEDBACK IN WATER value may be too high for the sensor fitted or the signal level may be too low for the sensor because the FEEDBACK IN AIR adjust ment is wrong If the symptom is caused by an erroneous value of sample 0 it can be deactivated as a temporary measure K2 The calibration constants are calculated according to a sec ond order equation which can have both positive and negative solutions If K2 is negative this means that the calibration curve first rises normally but then turns and falls again be cause one or more points are located too low As this is not permissible the program automatically performs a linear re gression K2 is now zero Study the calibration graph and deactivate those points usual ly at high consistencies that are pulling the curve down see the example in Fig 21 where points 5 and 6 are doing this point 5 ought to be higher than point 4 and point 6 higher still This figure also shows how to calculate the calibration con stants manually i e the same operation as in the linear regres sion 01218 56 2e MEK 2300 Operating instructions 63 BTG 2002 5 6 Evaluation and documentation of calibration Fig 21 Specimen of manual calculation of calibration constants 5 6 6 Manual calculation of calibration constants KO K1 and K2 see Fig 21 In special cases it m
41. options are Hastelloy C 276 254 SMO and rubber clad types for abrasive media 3 Different sensing elements fit different models of transmitter 4 Each sensing element is adapted to a given range of consistencies but the type of fiber also influences the choice The figures given for maximum and minimum consistency are only approximate Consult BTG about the choice of sensor because there are many variables to be taken into account 5 Sensing elements type D and E are not recommended as first choice If possible use type G J Test shows that the transmitter is less influenced by flow velocity changes and other non consistency related factors using type D and E Always consult BTG about the choice of sensing elements and propellers The Tables in Fig 25 Fig 24 refers to the MEK family and is available in MEK MPK 2000 series MEK MPK 2200 series and in the MEK 2300 series Example sensing element G is valid both for MEK 2210 and MEK 2310 Ordering nos Propellers for the MEK family Fig 25 Choice of MEK propellers sans M mea Type SS2343 254 SMO Hastelloy Cons range eis Large 73198772 A0004978 73198798 1 5 5 150 mm Small 74359886 A0004986 74359902 lt 1 5 150 mm Hub 74360587 A0004994 74360603 gt 5 70 mm c Avesta 254 SMO replaces AISI 317L stainless steel 90 MEK 2300 Operating instructions 01218 56 2e BTG 2002 10 2 Service funct
42. stud The pipe should be located at 1 3 of the distance between the pump and the chest counted from the pump to avoid back flow into the chest At the point of injection the dilution water pipe should be dimensioned to produce a rate of flow 3 4 times larger than the flow in the main pipe Typically this means a dilution water flow 3 5 m s 10 16 5 fps at max flow in the suction pipe The dilution water pipe should have the same or larger dimension as the valve bore to prevent the valve from being plugged by pulp at water pressure loss Choose a dilution water valve with linear characteristics The pressure drop over the valve should be at least 0 5 bar 7 psi and should exceed 25 of the total pressure drop in the dilution water line The valve and its actuator must operate with the least possible backlash and smallest possible dead zone The valve must be tight when in its closed position See Fig 5 c See section 8 1 How to calculate the dilution water valve 11218 56 2e MEK 2300 Installation instructions 11 BTG 2002 3 1 Advice and recommendations Fig 5 Dilution water supply at consistency control Ap Dilution water pressure difference upstream downstream of the dilu tion water valve 1 Velocity 3 5 m s 10 16 5 fps V2 See Dimensioning the pulp line G Min 15 50 mm 0 6 2 inches depending upon suction pipe size Ap min 0 5 bar 7 psi L SeeFig7 A Recommended design B C
43. the actual FEEDBACK IN WATER at actual operating temperature and enter the result as sample 0 This is then made at e check that the value is activated and calculate the new calibration Symptom 4 Wide scatter of calibration points round calibration line low correlation factor Action Check the sampling equipment and quality of sampling methods This is the commonest cause of lack of precision in calibration You can also try deactivating the most deviant samples Does the feedback signal fluctuate wildly If so the probable reason is that the transmitter is measuring in non homogenous badly mixed pulp Check transmitter location it may not be located correctly refer to the Installation instructions for advice on relocation 01218 56 2e MEK 2300 Operating instructions 61 BTG 2002 5 6 Evaluation and documentation of calibration Symptom 5 Insensitive signal The calibration line has a low gradient Action Replace the sensor with a larger one The size of the sensor is the primary factor with regard to sensitivity so replacing it is always the first thing to do If this is not possible an alternative is to re adjust the Feedback resolution An MC transmitter which brakes 10096 feedback at a torque of 150 kpmm can be adjusted to brake 100 kpmm at the same feedback i e made 33 more sensitive or equal in sensitivity to the standard model The setting should pref erably be made with the aid o
44. to ID metric Inner Diameter standard dimensions Pipe dimension Pipe dimension Low pressure High pressure PN 10 150 psi 25 bar 360 psi mm inch mm inch mm inch 100 4 100x3 3 94x0 12 ze 125 5 12523 4 92x0 12 DE 150 6 150x3 5 91x0 12 150x6 3 5 91x0 25 200 8 200x3 7 87x0 12 200x8 7 87x0 31 250 10 250x3 9 84x0 12 250x10 9 84x0 39 The pipe dimensions refer to the pipe weld end Inner diameter x pipe thickness ID x t 11218 56 2e MEK 2300 Installation instructions BTG 2002 69 8 4 General dimensional units SI 8 4 General dimensional units SI Basic Units Sign Decimals and multiples of units Length m meter Multiples Sign Abbreviation Parts Sign Abbrev Mass kg kilogram 1018 exa E 10 deci d Time s second 10 5 peta P 107 centi c Electric current A ampere 1012 tera T 103 milli m Temperature K kelvin 10 giga G 106 micro Luminance cd candela 106 mega M 10 nano n Material length mol mol 10 kilo k 102 piko p Recalculation K 2 n C 273 15 10 hekto h 10 5 femto f C nK 273 15 ND deka da 10 18 atto a P Derived and additional Units b Area m square meter Volume m cubic meter x Angles 2 degree minute second kilopond Ibf Time min minute h hour d day kp kgf poundforce Ho He pal 0 1 10 0 10197 0 22481
45. to mount it in the increased pipe section following Sampling valve The sampling valve should be installed as close to the transmitter as pos sible and it is recommended that it be installed on the same side of the pipe This will help ensure that the laboratory sample is identical to the sample measured by the transmitter Installing a BTG sampling valve will ensure reliable results Measuring vessels for low pressure installations can be supplied with the sampling valve mounted directly in the vessel Main power supply Main power supply voltage and frequency must be within acceptable limits and must be protected against transients such as electrical storms or other equipment installed Flushing water for mechanical seal Where applicable the supply of flushing water for the transmitter s me chanical seal must be of good quality and pressure must be maintained at all times See section 4 7 for detailed recommendations as to the design of the water supply system Transmitters with mechanical seals that are not water flushed must have 11218 56 2e MEK 2300 Installation instructions 13 BTG 2002 3 1 Advice and recommendations their motors interlocked with pump motors to ensure that the transmitter stops when the pump stops However it must still be possible to run the transmitter s motor under manual control by jogging it and to lock it in this position MEK 2320 With this model it is vital that the f
46. value by pressing enter e or discard the sample value by pressing 4 or v NOT SAVED NOT SAVED is displayed if the sample value is discarded SAMPLE TAB FULL If all nine sample values in the calibration table are already in use select which sample value in the table to replace with a new sample value Press enter e and select which sample value to replace with the 4 or v buttons verify with enter e Press 4 or v to return to the Result display without replacing any sample value AX218 56 2e MEK 2300 JCT 1100 Operating instructions 4 21 BTG 2002 4 2 Transmitter configuration from the junction box Range setting RANGE 1 1 Span setting SPAN 0 5 2 0 0 5 2 0 SPAN 1 0 2 5 Press enter e to select another range Press 4 or v to choose a Range Verify by pressing enter e Note The transmitter will continue operating with the range set by the Range select switch and the output signal will not change All Range specific parameters Span Offset Damping amp Calibration can be changed for each Range However the changes will not take affect until the transmitter s range is changed via the Range select switch Press enter e to cha
47. water flushing See Installation instruction 1218 56 section 4 7 and Service manual SM218 56 section 2 3 11218 56 2e MEK 2300 Installation instructions 57 BTG 2002 7 1 Transmitter type sign 7 1 4 CE marking CSA The device complies with the amendments and requirements of the CE directives 89 392 EEC 73 23 EEC 89 336 EEC and 97 23 EEC Note The transmitter itself needs not to be CSA approved only the junc tion box and motor 7 1 5 Manufacturing number BTG internal manufacturing number 7 1 6 Warning sign The device is designed for industrial use Installation handling and ser vice must only be carried out by trained and authorized personnel and ac cording to valid standard Read the manual for detailed information and pay special attention to the warning signs 7 1 7 Sensing element Sensing element part number see Parts List SP218 56 7 1 8 Rubber quality in wetted parts FPM Standard Flour carbon rubber For general purpose up to pH 12 EPDM Ethylene Propylene rubber For high pH applications pH 8 14 See Service Manual SM218 56 chapter 2 2 7 1 9 Splined fastening of sensing element No marking Alt 2 Traditional fixed center screw fastening SP Alt 1 New splines standard screw fastening See Service manual 5M218 56 chapter 2 1 1 7 1 10 Mechanical seal of Hastelloy No marking Original mechanical seal part no 27006121 mounted See Parts List SP218 56 position 215
48. with instructions The earth should be connected correctly and checked It should be possible to switch off the voltage in the distribution centre for example A clear warning such as a sign should let other people know that work is in progress and the switch must not be touched e Use only metallic cable fittings with shield connection for the junction box For the motor a plastic cable fitting should be used Starting up and servicing the transmitter Read through the following points before starting up and servicing the transmitter Bear also in mind that the points mentioned above contain important information for these operations If the motor is switched on so that the transmitter rotates there is risk of injury by crushing or cutting if the covers have been removed This ap plies to the cover over the motor s drive belt wheel the cover over the measuring part and the inspection cover Also take care when working close to the propeller and the sensor if these are exposed Take all professional precautions before servicing Do not wear gloves or rings which may get caught Before removing the transmitter from the measuring chamber or opening the inspection cover check carefully that the line is empty Hot or corrosive liquid flowing out under pressure may cause se rious chemical burn injuries Take care when opening the cover of the junction box with built in power supply unit There are live parts here which may cause el
49. you wish to check that the code has been entered press 38 and 5 The signal transfer will not take place without the input instruction for the code being displayed B Changing your personal code Send Go to data 3 EI Press Sede Load old code will be dis played Enter your old personal code or the general BTG code Load new code will then be displayed Enter your new code Press Enter 01218 56 2e MEK 2300 Operating instructions 81 BTG 2002 6 7 Simulation mode C Deactivating the code you have entered Send QUAD P ids Press data Ses Press the See button so that it displays code off Enter your personal code D Activating the code you have entered Send parn 13 99 2 Press data Lee Press the S button so that it displays code on Enter your personal code MEK 2300 Operating instructions 01218 56 2e BTG 2002 6 7 Simulation mode 9 Back up memory The transmitter is equipped with a memory in which all data is stored for this specific transmitter according to the Tag No There are two separate memories in the hand held terminal one editing memory where all the programming is normally stored and a back up memory When data is transferred from the transmitter to the terminal da the transmitter data is stored in both the editing memory
50. 0 0 32283 10 4 046910 6 2726 106 43 5610 48 4 10 1 1 5625 10 2 590010 4 0145 10 27 878 10 3 0976 10 640 1 1 ha 1 hektar 10 000 m2 Volume m in ft yd UK gallon US gallon 1 61 024 35 315 1 3080 219 97 264 17 16387 10 1 0 57870 10 7 21 434 106 3 604610 4 3290 10 28 317 10 1 728 10 1 37 057 102 6 2288 7 4805 0 76456 46 656640 27 1 168 18 201 97 4 5461 10 277 42 0 16054 5 94621 102 1 1 2010 3 78510 231 0 13368 4 0511 10 0 83268 1 70 MEK 2300 Installation instructions 11218 56 2e BTG 2002 8 4 General dimensional units SI TERN mechanical tension is Density S ES Pa bar kp em2at kp mm dry atm Ibf in kg m g cm Ib in lb ft mm Hg psi P 5 1 10310 10 197109 0 10197 10 6 7 5006 10 9 8692 10 6 1 10 36 127 107 62 428 10 0 14504 10 A d 100 10 1 1 0197 10 197 10 750 06 0 98692 14 504 10 I 36 127107 62 428 98 066 10 0 98066 1 10 133 735 56 0 96784 14 223 27 680 10 27 680 1 72810 9 8066 10 98 066 100 1 73 556 400 96 784 6 109 16 01911070 57970 101 1 422310 133 32 1 3332 107213 595 10 13 595 106 1 1 3158 10 N 1935710 M Ko Temperature Kelvin Celsius Rankine Fahrenheit Physical conditions Related scale scale scale scale temperature values OK 273 15 C OR 459 67 F Absolute zero 255 372K 17 778 C 459 67 R 0 F Melting point 27315K O C 491 67 R 32 F for ice Related 2731
51. 00 800 D mm to 254 SMO B Stainless steel Calculation values for weld in stud to SS2562 POSTS Outer diameter D 240 mm Material thickness t 10 mm Omax Max permitted stress value N mm Installation data SS2343 Onax 147 N mm Pressure 16 bar 232 psi P 254 SMO Oma 185 N mm Temperature 20 C 68 F 38 MEK 2300 Installation instructions 11218 56 2e BTG 2002 4 4 FRP pipe installations 4 4 FRP pipe installations Pipes made of fiber reinforced plastic FRP are now becoming quite com mon in chlorine bleach plants as they are less expensive than metal pipes and offer greater resistance to corrosion 4 4 1 Transmitter material selection c Select wetted material according to the actual process conditions Where the transmitter is to be installed in an FRP pipe its wetted parts are made of either Hastelloy C for highly corrosive applications or 254 SMO stainless steel for less corrosive applications Where exposure to corrosion is not significantly higher than usual however standard mate rials will be used 4 4 2 Installation in pipes 250 mm 10 in diameter using a measuring vessel Where pressure is lt 10 bar at 20 C 150 psi at 68 F defined as PN10 and pipe diameter is 250 mm 10 in the transmitter should be connect ed to the pulp line via a measuring vessel as described in section 4 2 1 The measuring vessel is of standard dimensions but is always flanged The m
52. 1 and in the mill equipment the shield is e connected to instrument earth BTG Mill JCT 1100 equipment CONN21 PE Protective earth L Instrument earth AX218 56 2e MEK 2300 JCT 1100 Installation instructions 3 13 BTG 2002 3 3 Cabling It is important to tighten the cable connector firmly to the transmitter use a tool If not tightened firmly the shield will not be properly ground ed Fig 10 Transmitter cable JCT 1100 connection s I N Conn2 E 3 14 MEK 2300 JCT 1100 Installation instructions AX218 56 2e BTG 2002 3 4 Wiring diagram 3 4 Wiring diagram Fig 11 Wiring diagram c Unshielded long looped wires may cause interference to the signal The terminal markings become visi mE OFF z Oo SW2 fe ble when the screw clamp connec 120 Ohm resistor for 485 circuit termination TERM RES I tors are removed 809 oo CONN6 el al RS 485 z z 80 Reserved for serial 18 communication a Q FB 87 CONN5 Reserved for Field 9 Bus CONNA g E OUTPUT 4 amp Production output signal 4 20 mA Optional E Output signals i Concentration output signal 4 20 mA See section 3 4 1 E 1 CONN21 lel a OE Signal output cable shield should be connected here See
53. 1 2 on page 35 item F This function is in the main menu under ration The feedback signal 0 10090 is displayed as a function of the set mea suring span xx xx The calibration points within the predetermined measuring span are displayed but note that activated calibration points outside the measuring span affect the shape of the calibration curve A valuable application for the function is showing in a simple and clear manner how well the calibration points agree with the calculated curve The three calibration constants KO K1 and K2 and the special correla tion factor r also provide a guide Refer also to section 5 6 5 on page 60 Note that the feedback signal is displayed for the entire span 0 100946 This means that the slope of the curve and thus the resolution can be small This is particularly the case if a small measuring span is selected or at low consistencies and pulp grades with low shear force such as re cycled fibres If other measuring criteria are good i e the transmitter is correctly installed the 4 20 mA signal can be modulated for very small changes in feedback In practice the lower limit usually lies at around 596 feedback units Transmitter set to 0 10096 feedback for a torque of 0 100 kpmm To improve the display resolution the feedback resolution can be in creased in steps The changed setting only affects the calibration curve display 76 MEK 2300 Operating instructions 01218 56 2e
54. 2 d 2324 mm 12 75 in stainless steel to SS 2343 AISI 316 Other flange standards available to order Rubber gasket diameter 350 300 x t where t 2 3 mm 0 08 0 12 in Shore A hardness 40 70 viton Flanged FRP stud size 300 mm PN 10 FRP reinforcement Six 6 4 mm 0 16 in thick guide rails of plastic only for M 150 mm 5 9 in 60 apart 12 screws to M6S 20 x 90 stainless steel 12 nuts to M6M 20 stainless steel 12 flat washers SR BRB AY 21x36x3 Three 3 10 mm 0 4 in thick FRP deflectors only for M 80 mm 3 1 in positioned to have a 30 mm 1 18 in c c distance o 10 1 Included in delivery from FRP pipe in accordance to existing pipe dimension Wetted parts are made of Hastelloy C 254 SMO or SS 2343 AISI 316 according to order c M dimension M 150 or M 80 mm according to recommendations from BTG 8 10 J D O S e M 150 6 126 5 MI S PIPE MADE OF REIN FORCED PLASTICS D gt Alt 2 M 80 3 1 ANS MLL EIERENS IN ACCORDANCE WITH ACTUAL PIPE DIMENSION M 80 3 1 11218 56 2e MEK 2300 Installation instructions BTG 2002 41 4 5 Pulp chest overflow box stuff box installations 4 5 Pulp chest overflow box stuff box installations A Pulp chest installation The standard model of the MEK 2300 can also be installed in a pulp chest using a weld
55. 218 56 2e MEK 2300 Operating instructions 11 BTG 2002 2 5 Memory cards Backup card SPC 1000 74414152 The terminal must be switched off when changing cards It can otherwise be damaged B Back up card The storage card is a SRAM card and is used to store the transmitters different settings i e calibration data and other settings also shown by the printer output see section 2 3 on page 10 A maximum of 125 different transmitter settings Tag no can be stored on one card using a 64 KB card configuration Since each transmitter has the option of four different measuring span settings a total of 500 different settings can be stored on one card c Change the back up card battery regularly The battery life of the back up card is given as four years There is a risk that the data could disappear after this time The battery should therefore be replaced in good time If battery voltage level is low itis shown on the display when the card is inserted c To protect from overwriting the card can be set in write protect mode with a switch 2 5 2 Inserting the memory card The protective cover must be opened first to remove the memory card Then make sure that the terminal is switched off Press the button marked EJECT and remove the card Position the new card with the front fac ing the front of the terminal and insert the card fully into the slot The two types of cards are used as re
56. 300 Operating instructions 01218 56 2e BTG 2002 3 2 Programming the transmitter with hand held terminal SPC 1000 general Read data gure calib ration curve ds Send data os Tag no 232234 Range 61 74 100 Cons 3 35 Cali Calib brate ration curve Offset Send 0 00 data Range 61 74 100 SPC 1000 Communication Terminal SPC 1000 Communication Terminal o Cons 3 35 61 7 1004 SPC 1000 Communication Terminal Cali brate Offset Send 0 008 Reads the sensor s setting to both memories in the hand held terminal and deletes all previous programming in the terminal The function flashes normally when reading should be carried out but it may also flash under other circumstances Choice of measuring range No 1 of 4 for editing Note that the present actual output signal is controlled by the exter nal measuring range setting This output signal is the one displayed in the main menu 61 7 3 35 cons in example Setting and control of the transmitter s basic functions locations in the process TAG no temperature compensation and calculation of the production option al functions For calibrati
57. 31 Warning sign installation Don t lift or twist sensor or sensing shaft when mounting 1408533 11218 56 2e MEK 2300 Installation instructions 45 BTG 2002 4 7 Connection of flushing water to mechanical seal 4 7 Connection of flushing water to mechanical seal All MEK 2300 transmitters except the MEK 2340 are equipped with a mechanical seal for the drive shaft The seal can be flushed with water to produce a cleaning lubricating and cooling effect c In most cases the water flushing can be avoided provided certain precaution are taken see section 4 7 1 Water flushing can be avoided for most units to be installed Flushing operation can be achieved in one of two ways e In low pressure flushing the flushing water goes to a drain e In high pressure flushing the flushing water is pressed into the media Models No MEK 2320 have high pressure flushing All other models except the MEK 2340 are designed for low pressure flushing The flushing water must be of standard quality with no impurities larger than 200 um 4 7 1 No water flushing Code in type designation SSO ESO As mentioned above the flushing water provides a cleaning lubricating and cooling effect and normally gives the seal a longer life However the cost of installation and operation of the water flushing in relation to a somewhat shorter life for the sealing are factors that should be consid ered In general a satisfactory op
58. 335 She 40 45 46 42 52 00 40 50 70 60 50 50 80 40 We te ON 80 00 12 70 00 60 00 50 00 40 00 Feedback 30 00 20 00 Note These FB values in diagram are not printed at a normal printout 10 00 1 00 1 50 2 00 2 50 3 00 3 50 4 00 Cons 4 50 5 00 5 50 01218 56 2e MEK 2300 Operating instructions BTG 2002 55 5 6 Evaluation and documentation of calibration Fig 19 Calibration diagram for MEK 96 Feedback 100 90 80 70 60 50 40 30 20 10 0 1 2 3 4 5 6 7 8 Consistency MEK 2300 Operating instructions 01218 56 2e BTG 2002 5 6 Evaluation and documentation of calibration Always switch off the hand held terminal when changing a memory card The terminal could be damaged in some cases if this is not done Protect memory cards against moisture and dirt handle them with care do not bend them Fig 20 Store data menu 5 6 3 Documenting calibration using the back up card For more information see section 2 5 on page 11 All transmitter settings calibration data and transmitter data can be stored on a special SRAM memory card This is the back up card The card replaces the standard sensor card which holds the transmitter pro gram The back up card can store up to 125 complete different transmit ter sett
59. 632 42 1 1 9529 10 2 509610 1 3558 0 37662 10 0 13826 0 32383 10 0 51206 106 1 1 25851 10 1 0551 10 0 29307 10 107 59 0 25200 0 39847 10 778 17 1 J erg 0 1 10 1 ud Effect CN W kpm s kcal s kcal h hp metr hp ft Ibf s BTU h horsepower horsepower 1 0 10197 0 23885 10 0 85985 1 3596 10 1 341010 0 73756 3 4121 9 8066 1 2 3423 10 8 4322 13 333 10 13 151 109 7 2330 33 462 4 1868 10 426 94 1 3 6 10 5 6925 5 6146 3 0880 10 14 286 10 1 163 0 11859 0 227778 440 1 1 581210 1 559610 0 85779 3 9683 735 0 75 0 17567 632 42 1 0 98632 542 48 2 509610 745 70 76 040 0 17811 641 19 1 0139 1 550 2 544410 1 3558 0 13826 0 32383 10 1 1658 1 834 402 1 818210 1 4 6262 0 29307 29 885 107 69 999 105 0 25200 0 39302 10 0 39302 10 0 21616 1 ud 11218 56 2e MEK 2300 Installation instructions BTG 2002 71 8 4 General dimensional units SI 72 MEK 2300 Installation instructions BTG 2002 11218 56 2e Important points to note The transmitter is a sensitive piece of precision equipment Handle it with care When installing the transmitter in the line or removing it from the line use the handle to lift it and take special care to avoid any damage to the unit Do not rotate the sensing element by hand as this can overload the measuring system e Before starting the motor make sure that the flushing water supply to the mechanical seal is working applies to this model
60. 6K 0 01 C 491 688 R 32 018 F Water triple point temperature 373 15 K 100 C 671 67 R 212 F Water boiling point differences 1K 1 C 1 8 R 1 8 F W 0 55556 K 0 55556 C 1 R 1 F E ass Kg Ib Slug OZ hundred ton short short ton weight UK hundred sh ton weight pound ounce cwt sh cwt sh ton 1 2 2046 68 552 402 35274 19 684 10 0 98421 10 22 046 10 1 102310 045359 1 3108110 16 8 9286 10 0 44643 10 10 10 0 510 14 594 32 174 1 514 79 0 28727 14 363 10 0 32174 16 087 10 ton UK is in the USA called long ton 28 350 10262 5 10 1942640 1 0 55804310 27 902 10 0 625 10 3125 10 slug lbfs ft Ibf pound force ft fot 50 802 112 34811 1 792 10 1 50 10 1 12 56 10 oz ounce also called ounce avoirdupois 1 0161 10 2 24 10 69 621 35 84 10 20 1 224 1 12 1 ounce troy 31 1035 10 kg 45 359 100 3 1081 1 6 10 0 89286 44 643 10 1 50 10 cwt hundredweight UK in USA long 907 19 240 62 162 3240 17 857 0 89286 20 1 hundredweight Energy gt J kWh kpm kcal hph ft Ibf BTU British Under defined con joule kilowatt hour kilo pond meter kilo calory horse power hour foot pond force Thermal Unit ditions 1 0 27778 10 9 0 10197 0 23885 10 0 37767 10 6 0 73156 0 94782 10 3 6400 1 0 37610 106 859 85 1 3596 2 6552 10 3 4121 10 Value in C x 9 8066 2 724110 9 1 2 34423 102 3 7037 10 7 2330 9 2949 10 F 32 4 1868 10 1 163 10 426 94 1 1 5812 107 3 0880 103 3 9683 2 6478 10 0 73550 0 27 10
61. 7 11 2 5 6 AX218 56 2e MEK 2300 JCT 1100 Installation instructions 3 9 BTG 2002 3 1 Mounting The junction box has three attachment lugs which are bolted to a flat sur face Fig 5 Attachment lugs 177 BTG recommends that a roof or overhang is mounted above the junction box to protect it against spray and pulp If the junction box is located out doors a roof should be mounted that protects from direct sunlight which can cause excessive operating temperatures If possible the SPC 1000 should also be protected when placed in it s holder Fig 6 Protecting roof 200 75 Ol ON CO Je v im Fig 7 Holder for SPC 1000 160 6 3 e cio i NP 2xO5 5 _ 3 c Es ae OL 30 Ls di 1 2 2 3 10 MEK 2300 JCT 1100 Installation instructions AX218 56 2e BTG 2002 3 2 Junction box with external 24 V DC power supply 3 2 Junction box with external 24 V DC power supply This section describes the requirements on an external 24 V DC power supply when the junction box is delivered without BTG s built in 24 V DC power supply unit gt It is the mill s responsibility to arrange the transmitter power supply correctly BTG will disclaim any liability for problems and damage caused by incorrect power supply Dimensioning the power supply unit is the mill s responsibility See sec tion 1 2 Technical data on pa
62. AAA LNSCN ELO HAN ANA A MATATA MAS AUS AE TT RUN VAN AN AE NNNRNN NAY AA IAAI OTA TS UAT ds ONE NK NAVAN RAAN NN WAT AA ARAL 14446 NN AA A AAAI NEA A AA ANT AAACN TOU TA NANNY NNNSSRSSNCLLALA T 11 ANC CR UI ATANN NANANA ANANN RENAN VAN NN NNNM TANT A AAA AAR VAN TA AN ANNE ANN mw NN wan DU NNSS NARA N AN NN ARS NN Num X Ww iN A AS IRTA ses es Y NN W AN NENDA 09 L AMANA AN OAT A TA AAA ANA AR EAT AU ANNANIN TE NL ANNA SATS BOG AAA AAA AE RRI AU AT BUM GA os SAL IT M A RUE LRU ARG ANY ANT AU AU R AU AUTANT EE a AN ANA LLA 4 44 44444 AN AC LA VALL A NA UNE NT o7 CRAN YU ARR NN NN NR MALLA ALA RAR LI AN AAAS LA AANA A ADA 4 4 AAA MAN ANNE AA AAA MA A RCE NN NNN WW SN NAKAI AAT AA MAMAN ANNANN AN FAA ARVANA SORA AAA ARAMA AAA ARR STA BANANE RAA RAA TES TAN UNS ANA NONIS ANNA NA AAAI AI IOUT ANNE 80 100 800 T es diameter mm ex 300 10 ex 0 98 11218 56 2e MEK 2300 Installation instructions BTG 2002 67 8 2 Pressure and temperature limits for piping pipe flanges and fittings of stainless 8 2 Pressure and temperature limits for piping pipe flanges and fittings of stainless steel according to Swedish Standard SMS 1233 For conversion to SI units 1 at 9 8 N cm Max operating pressure Max operating pressures under normal conditions are given in the table below The values stated must not be exceeded by more than 5 How ever the operating pressure must never exceed the nominal pre
63. ATED CALIBRATION UPDATED CALIBRATION is used if you want to preserve the val ue of sample 1 from single point calibration Select sample and take laboratory samples normally three at each level immediately while at the same time storing the feedback signal in the memory Mark the laboratory sample with the sample number shown on the display Decrease the consistency and repeat the procedure For next sample press sample You should take at least three samples at high me dium and low level within the measuring span The wider the spread within the measuring span the better results will be Menu Exit by pressing the key after collecting suitable amount of samples at various levels Load the laboratory consistency mean value of samples under ee for all numbered samples The FEEDBACK IN WATER signal should normally be included i e activated If any sample is faulty it should not be activated i e not included in the calibration Pressthe Rey then fe Let the microprocessor com pute the calibration The transmitter is then in operation Evaluate the results from the displayed calibrating curve If the curve shows that any sample deviates widely from the calibration line thereby skewing the line as a whole in relation to the other sam ples go back to LOAD LAB CONS step to the offending sample number and deactivate that number A faulty c
64. AX218 56 2e MEK 2300 JCT 1100 Operating instructions BTG 2002 4 2 Transmitter configuration from the junction box Start up display Result display Range setting Span setting 4 2 2 Menu structure The display on the junction box always returns to the Result display after 15 seconds of inactivity or after 3 minutes if a message has been shown If data has been changed it is automatically saved to the transmitter XXX 2300 5 55 12 53mA The transmitter type is displayed when the JCT 1100 has established contact with the transmitter While reading or writing data Wait is displayed Result display shows the process value and the output signal To access the main menu items press the up or down on the arrow buttons 4 v gt Data is saved to the transmitter only after returning to the Result display Wait followed by DATA SAVED is shown on the display The reason for this is that the whole transmitter configuration file must always be saved to the transmitter and it is more efficient to do this after all configuration changes have been made RANGE 1 SPAN 0 5 2 0 The present measuring range Can be changed to access other ranges ranges 1 2 3 or 4 Measuring span low limit 4mA high limit 20mA Offset adjustm
65. English not translated to other languages The buttons are within the framed area where the menu choice text is located Pressing the display area actuates the button displayed there Touch the MEK 2300 ver 1 2 button as in Fig 10 Fig 10 Selection of MEK 2300 program 4 20mA MODEM PRINTER PWR ON OFF EJECT MEMORY CARD SPC 1000 Communication Terminal 01218 56 2e MEK 2300 Operating instructions 17 BTG 2002 3 2 Programming the transmitter with hand held terminal SPC 1000 general MEK 2300 Ver 1 2 Selection of type 4 20mA MODEMPRINTER PWR ON OFF EJECT MEMORY CARD of sensor MEK 2300 z this manu al Program ver sion 1 2 Sensor type MBT 2300 not in this manual Sensor type OCT 2300 not in this manual SPC 1000 BIG 74 X X Future trans Communication Terminal 3 mitter programs c See section 15 on page 97 for details regarding software revisions The MEK 2300 main menu is displayed see Fig 11 What follows is an explanation of the selections you have available on the buttons in the main menu This menu is identical for all BTG Smart transmitters Fig 11 Selection buttons in the main menu of MEK 2300 program 4 20mA MODEMPRINTER PWR ON OFF EJECT MEMORY CARD Cali brate as 61 7 100 Cons 3 35 2300 SPC 1000 Communication Terminal 18 MEK 2
66. Not recommended A Do not use saddles in dilution vvater piping see Fig 5 B Location of the dilution water valve The conventional method is to install the valve above the highest pulp level in the chest to prevent pulp from entering the valve during a shut down With modern large chests it is not always possible to meet this re quirement Valve location as close as possible to the suction pipe wall is recommended 12 MEK 2300 Installation instructions 11218 56 2e BTG 2002 3 1 Advice and recommendations Dimensioning the pulp line See Fig 5 V The transmitter is designed for installation in a pulp line dimensioned for a rate of flow of 0 5 5 m s 1 6 16 5 fps where consistency is 0 1 to 10 and for a rate of flow of 0 3 3 m s 1 9 fps where consistency is 8 to 16 c See Fig 37 and Fig 39 for a nomogram how to estimate the flow velocity Note the recommended flow velocity In specific cases where consistency is 8 to 16 rates of flow of 0 2 5 m s 0 65 16 5 fps are acceptable somewhat increased flow depen dence Typically the main line is dimensioned for a normal rate of flow of 2 3 m s 6 5 9 8 fps for normal consistency installations and 0 5 1 m s 1 6 3 3 fps for medium consistency installations see accepted values above gt Do not mount the transmitter in the fluidized zone after an MC pump It is recommended
67. SPC 1000 There they may be used for docu mentation print out or backup The SPCwin PC program with a cable and a modem for connection to the JCT 1100 can be used as an alternative to the SPC 1000 hand held ter minal See the transmitter section of this manual for more information about SPCwin c Do not configure the transmitter from the hand held terminal and the junction box at the same time Valuable configuration data can be lost Always close a configuration session by updating the transmitter 4 18 MEK 2300 JCT 1100 Operating instructions AX218 56 2e BTG 2002 4 2 Transmitter configuration from the junction box Fig 14 Front panel with push buttons and display 1 Display 2 Sample button 3 Arrow up button 4 Arrow down button 5 Enter button T e n 1 He 4 odpo d Terminal a The push buttons have the following functions depending upon position in menu structure Push button Function Sample Stores a sample value that corresponds to a calibration sample that is used for calibration curve adjustment or offset adjustment Arrow up Scrolls up in the menu structure Change a value upwards Discard a sample value Arrow down Scroll down in the menu structure Change a value downwards Discard a sample value Enter Select menu options Verify entered values
68. Unscrew the front panel 2 and carefully lift the front panel plate aside 3 Detach the display connector 8 by pushing the two levers aside and pulling the connector straight out from the main circuit board 4 Detach the SPC connector 9 by pulling it straight out from the main circuit board It might be necessary to loosen the locking flap using a flat screw driver 5 Unscrew the front panel grounding strap 12 from the main circuit board 6 Detach connectors for 24 V DC 3 and AC power 4 from the main circuit board 7 Detach the power supply unit from it s mounting plate by pushing the black lever located on the right upper corner to the left 8 Lift out the power supply unit 5 9 Move the wiring for 24 V DC 3 and AC power 4 from the faulty power supply unit to the new power supply unit To mount the new power supply unit perform the steps above in reverse order AX218 56 2e MEK 2300 JCT 1100 Service instructions 5 27 BTG 2002 5 2 Service hardware DANGER High voltage within the junction box Connections may only be carried out by qualified personnel applies to version with 100 240 V AC power supply 5 2 3 Replacing the front panel If there is something wrong with the display or the push buttons then the whole front panel has to be replaced However the transmitter will still work properly without the display or the buttons functioning in the junc tion box This allo
69. User manual MEK 2300 with JCT 1100 Smart Rotating Consistency Transmitter eT s Ca pu 88987 o En Terminal a QO D LO TT IL ES EH CE M218 56 2e BTG 2002 1 General safety recommendations 1 General safety recommendations A Read the manual for de tailed information Installation handling and service must only be carried out by trained and authorized personnel and according to valid standard The product is designed for industrial use Installation category III Pollution degree 2 IP Code IP65 NEMA 4X The product complies with the following EEC directives and relevant standards Machinery directive 93 44 EEC Generic standard Low voltage directive 73 23 EEC EN61010 1 EMC directive 89 336 EEC EN 50081 2 89 336 EEC EN 50082 2 PED directive 97 23 EEC To meet the EMC directive the following precautions have to be taken 1 All wiring has to be shielded Power supply electronics shielded coverage 80 Interface cable coverage 100 aluminum 2 All units are tested as a complete system to conform with rele vant CE directives and their standards When using the units in other combinations BTG cannot guarantee the CE
70. X 00XX TIXX 00XX VIXX 00XX OTXX OPXX VIXX 00XX 00 2 0022 000c odA J911LUSULLL o osed EPET SS o o svH EPET SS Borel PQqny OWS YST Kop oiseH EPET SS EPET SS qqr Jeqqnq OWS YST Ko ojseH EPET SS EvEC SS Joqqnyy Joqqny OWS vSC AoyjaseY EPET SS EPET SS onsue oe1eu9 60 90 L LcS891vL V88ESTEL 99cS00 L TOSTGIEI 6vr6ETET ETIT8IEL 9099L0EL ITLSITEL T666r0 L EGPPGTET LOv6ET ET 660C8TEL VSOCLOEL L86801 L L99 00 L S8VV6TET LLvvolel TETTSTEL LOO8TTEL T098S0 L Guiueisej M999S poaxiJ ou BUISpIO oorrel el S68V000V L68861 L CC886I L ISvr6IcI L88V000V 683861 L VI886IEL VIPGIEL 6L3r000V 1L8861 L 908861 L Bui U9 Se M999S seulds ou Bulapio 01218 56 2e MEK 2300 Operating instructions BTG 2002 2 TEUBJ AHIN Syuauro o Sursuog o oc o n ILIE ISIV pooerdo1 sey OWS YSZ i930N zo IMOYO ISI SE popuouiruioooi JOU I 4 pue J A 930N xx pesn jou eurrou SI juounsnf pe UOTNIOSAI xoeqpoo STUL i930N x Fig 24 Choice of 88 10 2 Service functions and signal calibration ON SE OW DLIx ON 206C OW 7 269 ON L ON L ON 6 OW 01 ON 26914 OW cT ON 202 zH09 13 em oeqpee4 ON 250 OIN 95 1s ON 7 ST OW 95 ON 269 ON 269 ON Lx OIN 958 ON HET x N 01 ON 96LT ZHOS
71. a sured from its center Calculation values Weld in stud Outer diameter OD 308 mm Material thickness t 4 mm Sizing temperature 20 C 68 F O max Max permitted stress value N mm SS2343 147 N mm 254 SMO o 185 N mm Hastelloy C 276 6 155 N mm Fig 15 Weld in stud to PN 10 M 150 100 mm 6 4 in Measuring chamber Main pipe Inspection cover Position of sensing element M 2 150 mm 6 in 5 Position of sensing element M 100 mm 4 in APUN 11218 56 2e MEK 2300 Installation instructions 27 BTG 2002 4 2 Low pressure pipe installations PN10 Fig 16 Weld in stud with deflectors PN 10 M 70 mm 2 75 in i Deflectors x 3 2 Position of sensing element M 70 mm 2 75 in 3 Aligned to the vertical line Fig 17 Installation of inspection cover Yoke 2 Nut vibration proofed 3 Inspection cover chained to the measuring vessel ol ne ae gt Min 10 mm 0 4 in distance to the pipe wall at the narrowest point min 6 mm 0 24 max 6mm for ID 300mm 28 MEK 2300 Installation instructions 11218 56 2e BTG 2002 4 2 Low pressure pipe installations PN10 A VVarning Assure yourself that the pipe is empty before opening it up Incorrect use of shut off valves is a potential hazard 4 2 3 Installation with shut off valve
72. ain pipe should be equipped with flanges to match those of the ves sel The material available and selection of it is described as above c Do not turn the vessel upside down Air may accumulate in its upper part and disturb measurement 4 4 3 Installation in pipes 300 mm 12 in diameter using an intermediate flange according to Fig 26 and Fig 27 4 4 3 1 General Where pressure is 10 bar at 20 C 150psi at 68 F defined as PN10 and pipe diameter is 2 300 mm 12 inch the transmitter should be connected to the pulp line using an intermediate flange connected to an FRP stud located on the main pipe The FRP stud is made to obtain the correct M measurement Contact BTG for correct M measurement 11218 56 2e MEK 2300 Installation instructions 39 BTG 2002 4 4 FRP pipe installations Warning Assure yourself that the pipe is empty before opening it up Fig 26 Flanged FRP stud connection 300 mm PN 10 DIN 2642 1 To be profiled and fixed to the main pipe 4 4 3 2 Installation in pipe a For a solution according to Fig 6 use an FRP stud Fig 26 and fix it to the main pipe flange size 300 mm PN 10 to DIN 2642 Remember that the total length M of the stud can be either 80 mm 3 1 in or 150 mm 5 9 in depending on the consistency of the pulp When M is 150 mm 5 9 in Fig 27 Alt 1 lower consistencies the stud length must be 126 mm 4 96 in Fasten with plastics six 6 symmetri
73. alibration constant K2 0 can likewise be corrected 1 e the signal can be linearized if bad samples are not activated see section 5 6 on page 52 Note that you must always press few in order to recalculate the calibra tion 48 MEK 2300 Operating instructions 01218 56 2e BTG 2002 5 3 Calibration 11 Transfer the calibration to the transmitter Press dte Check that all data that is displayed is correct If a code has been entered see section 8 on page 81 key this in correctly and press to transfer all the data to the transmitter If the message Transmission fail appear there is a communication problem Refer to the Service Manual and section 4 on page 25 item J 12 Press TP in the main menu Check the stability of the signal over time If necessary go back to the main menu and set a suitable time constant Press x8 see section 5 7 on page 65 End with Send data 13 Trim the controller See section 13 on page 93 14 Document the calibration either manually or by making a printout refer to section 5 6 2 on page 52 Refer also to section 5 6 3 on page 57 or section 5 6 4 on page 59 c Calibration is now complete but can generally be improved by entering additional calibration points i e an updated calibration according to section 5 4 on page 50 01218 56 2e MEK 2300 Operating instructions 49 BTG 2002 5 4 Updated calibration 5 4
74. analog out configuration 4 6 Faulty isolation amplifier 5 1 Incorrect program running in the SPC 5 2 Not enough resistance min 250 Q in the 4 20 mA output loop 5 3 The analog output signal is not between 4 20 mA 5 4 Faulty or incorrectly connected SPC cable 5 5 Faulty Hart communica tion with the SPC 6 1 Factory mounted 2500 load resistor connected in parallel with the 4 20 mA output loop 6 2 Faulty isolation amplifier 6 3 Incorrect transmitter analog out configuration Action Check if the isolation ampli fier is correctly mounted See section 5 2 1 Check the complete 4 20 mA loop for breaks See the transmitter part of this manual for calibration instructions Replace or remove the iso lation amplifier circuit board See section 5 2 1 Switch to correct sensor card and program in the SPC If the output signal is con nected to a DCS check that the total loop resistance is at least 2500 If the output signal is not connected to a DCS a 2509 resistor must be con nected between mA1 and mA1 See section 3 4 1 See point 4 above Check the connectors and cabling from the SPC to the main circuit board 9 Check that the SPC func tions correctly If it does it is necessary to replace the main circuit board See section 5 2 4 Remove the resistor See section 3 4 1 Replace or remove the iso lation amplifier circuit board See section 5 2 1 See the tran
75. apter set fitted with snap on test pins and mini grippers Fig 4 is supplied with the terminal and plugs in to the terminal s telephone jack The test pins can then be connected to a terminal block e g in the rack room The connection is made in parallel across the 4 20 mA connection which can be kept intact The connection is not polarity dependent When used in this manner the terminal is usually powered from the in ternal battery e 01218 56 2e MEK 2300 Operating instructions 9 BTG 2002 2 3 Connecting a printer 2 3 Connecting a printer A standard printer can be connected to the hand held terminal socket marked PRINTER The printer must be EPSON compatible recom Do not use the hand held mended models EPSON P 40S SEIKO DPU 411 or SEIKO DPU terminal s 12 V DC AC 414 It must have a serial input and be set for 2400 baud The connection adapter for the EPSON cable between the hand held terminal and the printer is supplied by BTG printer 6 V DC The printer may be refer to the parts list Accessories for hand held terminal damaged if connected The printers have a rechargeable battery and are provided with a 6 V DC incorrectly AC adapter Fig 5 PC contact alt disk The printer is used to document all important calibration and adjustment data and is a very useful tool when trouble shooting Fig 18 2 4 Connecting a PC Also a PC can be connected to the hand held te
76. ational Standard ASME section VIII Div 1 and comply with PED regulations 7 3 1 Design PN 10 Max 10 bar pressure at 20 C equal to 150 psig at 68 F 7 3 2 Max medium temperature 120 C 248 F Max medium temperature for stated material specifi cations and valid standards In case of the medium temperatures are higher than stipulated please contact BTG before manufacture Note that the max operational pressure depends on the temperature Max medium temperature is 120 C at max approved operational pres sure 8 bar 248 F at 116 psig 60 MEK 2300 Installation instructions 11218 56 2e BTG 2002 7 3 Measuring vessel weld in stud low pressure models type sign 7 3 3 Material AISI 316 SMO 254 Hastelloy C 276 Actual material qualities AISI 316 SS 2343 See also data sheet D750 01 7 3 4 VO VO is the BTG internal manufacturing number 7 3 5 DN Connection Pipe size connection and flange standard for measuring vessel DN 100 4 in 125 5 in 150 6 in 200 6 in 250 10 in Flange standard DIN 2642 AISI 150 lbs and other standards 7 3 0 Text When using the weld in stud make strength calculations Guidance is given in section 4 2 2 11218 56 2e MEK 2300 Installation instructions BTG 2002 61 7 3 Measuring vessel weld in stud low pressure models type sign 62 MEK 2300 Installation instructions BTG 2002 11218 56 2e 8 1 Dimensioning of the di
77. ay be useful to calculate the calibration points by hand Fig 21 shows how to calculate points KO and K1 This is done in the same way as for the Older models MEK 2000 MBT 100 Opticon etc In this case points 5 and 6 would have made K2 negative if the program had not manipulated the calibration KO may be positive or can assume a negative value as shown in the fig ure KO is the feedback value where the calibration line intersects the Y axis See Fig 21 for calculation of K1 First press Range to access the appropriate measuring range Then load the calibration constants under MAIN MENU option Be ne Press T to appropriate constant No and enter the value Always end with Se FEEDBACK 100 Ki gt X K2 0 O 4 5 Calibration 3 6 line Q x js 0 KO 1 2 3 5 ee ee al CONSISTENCY x MEK 2300 Operating instructions 01218 56 2e BTG 2002 5 7 Setting time constant damping 5 7 Do not set too long a time constant You loose the advantage of the control system accuracy Setting time constant damping See section 5 1 2 on page 35 item A The time constant is set after calibration has been completed Set it so that the signal is stable normally at 2 5 to 10 seconds If you find you have to set a very long time constant because the feedback signal is unsteady the transmitter is probably working i
78. cally positioned anti rotation rails 7 inside the stud 5 The anti rotation rails should have a length of 110 mm 4 33 in a height of 15 mm 0 6 in and a thickness of 4 mm 0 16 in When M is 80 mm 3 1 in Fig 27 Alt 2 fasten three 3 deflector rails upstream from the stud Position them symmetrically and 30 mm 1 18 in apart see also 11 fig 26 and fig 27 There is no need to install the deflector rails if there are no solid particles in the pulp that can damage the transmitter BTG can also deliver an intermediate flange 2 manufactured of either Hastelloy C 254 SMO or 882343 AISI 316 including a clamping flange 3 size 300 mm PN 10 according to DIN 2642 made of stainless material to SS 2343 AISI 316 Prepare a gasket 4 Tighten the intermediate flange and the gas ket with the clamping flange use screws nuts and washers 8 10 Make sure to direct one of the transmitter s fastening holes up wards d Insert the stud screw which was included with the delivery in the upper screw hole 12 x 23 344 13 5 11 8 I 300 11 6 40 MER 2300 Installation instructions 11218 56 2e BTG 2002 4 4 FRP pipe installations Fig 27 Installation of Consistency Transmitter in FRP piping 2 300 mm 12 in low pressure BTG Consistency Transmitter MEK 2300 Intermediate flange Clamping flange size 300 mm to PN 10 according to DIN 264
79. ce IP65 NEMA 4x Electronics box 2 0 kg 4 4 Ibs Output signal analog Output signal digital Analog input Measuring ranges 4 20 mA Galvanically isolated Current limited to 21 mA Min load for communication with display terminal 250 Q Superimposed signal over 4 20 mA current loop according to standard HART protocol and BELL 202 modem Follows HART universal commands 0 4 20 mA Four separate individually programmable externally connectable using a binary coded switch Also accessible via the communications link Junction box Hand terminal Fieldbus Display for viewing and buttons for adjusting span offset damping and calibration constants Using the BTG SPC 1000 hand held terminal jack plugs into the junction box The communication is superimposed over the 4 20 mA current loop Directly with the DCS HART universal commands RS 485 for connection to OPC server OPC program provided by BTG Note Only for DCS OCS system with OPC capabilities Prepared for fieldbus communication e g Profibus PA or Fieldbus Foundation MEK 2300 JCT 1100 Product introduction AX218 56 2e BTG 2002 1 2 Technical data Transmitter connection Cable fittings LIYCY 5x2x0 5 twisted pair shielded 10 m 33 ft cable with connector is included in the delivery This cable is connected to the terminal strip in the junction box Other cable lengths are available on request max 100 m 328 ft
80. ce to the length of the measuring chamber dimension M Fig 15 Fig 16 so that no part of the stud extends into the pulp line Note The attached label fitted on the stud shows the M di mension Be sure that the proper stud is taken to be used at the Tag no in question d Profile the stud by inserting it into the hole in the pipe and marking it with a marking pen Observe that the holes for the transmitter re taining screw should be aligned to the vertical line See Fig 16 pos 3 e After profiling it weld the stud into the hole A full penetration weld must be used 11218 56 2e MEK 2300 Installation instructions 25 BTG 2002 4 2 Low pressure pipe installations PN10 Fig 14 Material thickness in main pipe to PN10 For low pressure weld in studs Minimum mate rial thickness in main pipe for tmin mm f The use of an inspection cover is recommended Cut a hole with a diameter of 156 mm 6 14 in in the pipe opposite the transmitter and grind and bevel the edge to receive a weld Insert the inspec tion cover pipe into the hole ensuring that at least 10 mm 0 4 in of the pipe extends into the main pipe where the cover is at its nar rowest see Fig 17 Then weld the pipe into the hole taking care not to deform the inspection cover pipe in doing so Check that the inspection cover pipe fits properly in the groove of the cover Then tighten the inspection cover against the pulp line with the clam
81. ckly and simply The transmitters cannot be interchanged The standard Feedback in water setting may not be valid 1 Refer to item A 1 and 2 74 MEK 2300 Operating instructions 01218 56 2e BTG 2002 6 4 Altering Feedback resolution FB 2 Press fawsig Enter the raw signal as per the following table Fig 22 Feedback torque curve MEK 2300 Sear aa Torque 3400 1085 50 3200 1200 60 3000 1320 70 2800 1423 80 g 2600 1565 90 3 2400 1694 100 2200 Torque 1880 110 2000 2110 120 amp 1800 2350 130 TUR 2725 140 2400 3180 150 R 1000 40 60 80 100 120 140 160 Torque kpmm gt This feedback torque curve is only FB 100 valid for the latest 3 As a reminder also enter the torque value at orgue versions of MEK 2300 See section 15 E Software revisions 4 Press to transfer the values to the transmitter 5 Exit by pressing dh c To obtain the actual feedback value in Feedback in air Ie ex 100 max FB Feedback in air Feedback value raw signal when sensor rotates in air max FB max feedback raw signal Both the Feedback raw signal as well the Feedback value can be dis played after pressing according to point 4 above 01218 56 2e MEK 2300 Operating instructions 75 BTG 2002 6 5 Calibration Curve 6 5 Calibration Curve See section 5
82. cordance to Guideline related to Article 1 2 1 4 Accepted by WPG on 1998 11 26 Accepted by Working Group pressure on 1999 01 28 Must not bear CE marking EN 50081 2 Aug 93 EN 50082 2 Mar 95 ISO 9001 monitored by Lloyd s Register Quality Assurance CAM La Tom Gustavsson MD MEK 2300 Safety recommendations BTG 2002 SR218 56 2e Important information The Consistency Transmitter is a precision tool and must be properly in stalled to ensure reliable service So please read the following instruc tions and user information before installing the transmitter This instruction manual contains installation instructions for the entire range of BTG in line rotating consistency transmitters Installation and operating conditions The transmitter is designed and manufactured to provide accurate and re liable measurements over a long period of time gt Correctinstallation and regular maintenance according to the Service Manual will ensure maximum utility of the transmitter s capacity For Safety precautions please refer to SR218 56 Install the transmitter so that it is protected from direct mechanical damage If there is any risk of it frequently being sprayed by water or pulp ensure it is adequately protected by an enclosure To protect the junction box from water or pulp spray install under a roof above the box If installed outdoors the roof will also protect the unit from direct sunlight an
83. ctor E Load feedback see section 6 3 on page 72 This function will be found under Sate ES The function is used for manual loading of various feedback values for calibration for example when replacing a card or if you have lost or want to alter a feedback value c For training in the operation of the transmitter this function together with entering lab values is a very useful aid See section 12 Training F Calibration curve see section 6 5 on page 76 The function is found in the main menu under Sie To assess the calibration it is possible to see directly how well the cali bration points entered agree with the calculated calibration curve The three calibration constants KO K1 and K2 and the correlation factor r can also be seen The resolution of the display can be adjusted to zoom in an area for better readability G Trend see section 6 6 on page 77 This function is found in the main menu under Here you can see directly the output signal s trend and stability This is important when setting the right time constant damping The resolution of the display can be adjusted by varying the trend display from 0 5 minutes to 0 55 minutes This function is also a useful tool when trimming the control loop The direct output signal in mA 4 20 the calibrated momentary consis tency in and the momentary feedback value in 0 100 are shown in addition to the output signa
84. d 85 x 54 x 3 mm Two types of mem ory card are available A Sensor card and B Back up card The type of memory card to be used is task dependent A Sensor card This memory card has a flash memory and is available with different memory capacities The memory card contains the operating programs for different BTG transmitters in the smart transmitter series and is available only from BTG The first version contains an operating pro gram for consistency transmitters MBT 2300 and MEK 2300 A maxi mum of eight different sensor module programs can be stored on the card 512 KB card Each language version English German French etc has its own version of the sensor card The card is marked with the language software version and part number For future updates of the operating program BTG is able to supply the latest version and updates can easily be used on the different transmit ters e Some of the basic functions are however stored on the transmitter s processor card in its EPROM and can be changed only by replacing the EPROM carried out by BTG Since the memory card has good ESD protection the old card can be re turned to BTG for reprogramming and can be used again as long as it is not damaged c The life time of the memory card is given as 10 years There is a risk after this time that the software may deteriorate or disappear partly or completely Make sure a new sensor card is ordered in good time 01
85. d before the pulp pump the pressure drop across the control valve is equal to the difference between the dilution water pressure and the height of the pulp chest This pressure difference should be min 0 4 0 5 bar 6 7 5 psi In this case the pressure difference is 0 8 0 3 bar 0 5 bar 12 4 5 psi 7 5 psi With all other data in accordance with the examples above the required K will be Q 533 o LM 75 4 V JAp 05 The BTG ball sector valve type VBG 30 according to data sheet D521 60 65 is a suitable control valve Choose a valve size 40 or 50 mm 1 2 or 2 in depending on the pipe dimension 64 MEK 2300 Installation instructions 11218 56 2e BTG 2002 8 1 Dimensioning of the dilution water valve for consistency control The velocity of the dilution water at the point of injection should be 3 5 m s 10 16 5 fps see also section 3 1 According to the nomogram in Fig 37 a pipe size of 60 80 mm 2 5 3 2 in will be a suitable dimension Fig 37 Nomogram for estimation of flow velocities of liquids 0 5 1 2 3 4 5678 V m s 1000 10000 Q mh 2025 32 405060 80100 150200 300400 800 Pipe diam A correction factor must be applied when the valve is smaller than the supply pipe When dimensioning the valve a correction factor must be included to cor rect when a reduction from a larger supply pipe to the smaller valve is made See Fig 38 The calculated capacity factor K C is multiplied by
86. d held terminal must be connected to the junction box and switched on and the transmitter data read into the terminal as per section 4 on page 25 3 The pulp flow must be turned on and must pass the transmitter in the pipe The pulp must have representative consistency and flow val ues 5 2 1 Adjusting Tag no Serial no Sensing element no Propeller no Tag no The Tag no is the transmitter identification no in the process It can have different shapes in practice In the terminal max 6 identifica tion numbers can be entered Example Tag no is 12 NT 1234 Enter it the following way Press 12 Enter 1234 Enter NT will be displayed as a point l e the total Tag no will be 12 1234 Serial no The serial number is entered at the factory It can also be read at the transmitter type sign and reentered if being lost Example Serial no is 123456 01 01 Sensing element no Propeller no The part numbers for the sensing element and propeller supplied are entered at the factory c When replacing sensing element propeller with another type the relevant new part number must be entered so the transmitter is correctly documented c When changing the sensing element to another type the corresponding feedback in water value must be entered see section 5 2 2 on page 40 If not the calibration might be wrong MEK 2300 Operating instructions 39 BTG 2002 5 2 Criteria for calibration
87. d in stud to the pipe dimensions by reference to the length of the measuring chamber so that no part of the stud ex tends into the pulp line Do this by inserting the stud into the hole in the pipe and marking it with a marking pen Note No part of the weld in stud may extend into the pulp line Align it to the vertical line See Fig 22 e Observe that the holes for the transmitter retaining screw should be aligned to the vertical line Fig 22 f After profiling weld the stud into the hole A full penetration weld must be used 34 MEK 2300 Installation instructions 11218 56 2e BTG 2002 4 3 High pressure pipe installations 25bar 226 C Fig 22 Installation of high pressure weld in stud 300 mm 12 in pipe or larger 25bar 225 C or 375 psi 439 F 1 Weld in stud Must be profiled to suit the pipe dimension Material SS2343 28 254 SMO or Hastelloy C 276 according to order 2 Main pipe 300 mm 12 in Not included in delivery from BTG Calculate min t4 according to current standard Selected pipe thickness depends on present calculation pressure temperature Maintain t4 over a pipe length of minimum 505mm 19 9 in according to the figure Align the transmitter fastening screws to the vertical line sloping pipes as well Co Always mount the guiding bolt for the transmitter in the upper hole c Always mount the guiding bolt for the transmitter in the upper position
88. d not be bent to the extent that flow through is restricted onsistency ransmitter 0 5 1 min 0 13 gal min 13 130 psi 77 5432702 Take care of instruction manual test protocol fastening screws and water overflow 1 in package 48 MEK 2300 Installation instructions 11218 56 2e BTG 2002 4 7 Connection of flushing water to mechanical seal Make sure that water pressure always remains higher than media pressure 4 7 3 High pressure flushing Model MEK 2320 Code type designation SSW ESW If the flushing water pressure is lost even momentarily particles from the media may enter the area around the seal and this will result in wear Any particles sticking between the hub of the water guide bushing and the hub of the sensing element will disturb measurement The rate of flow for MEK 2300 is 0 95 l min 0 25 US gal min The flow is controlled by a built in flow controller For this model the water penetrates into the pulp protecting strings or other objects spinning around the sensor sensor hub It is very important that there is no pressure loss We recommend the installation of a check valve at the water supply There must not be any loss of water pressure which must always be min 0 5 bar above media pressure Avoid taps at the water supply To check the flow we recommend a flow indicator Install a filter that must be kept clean if clogging particles are present Arrange the filter cleaning to pre ven
89. d rain Protect the transmitter from heavy vibration sources such as cavitation or unbalanced pumps Install the transmitter at the correct distance from a pump pipe elbow or valve The measuring vessel weld in stud sensing element propeller etc must be of the correct type and in accordance to the PED for the specific application Contact your BTG representative for information and advice Use sealing water of a good quality standard for the flushing water for the mechanical seal Make sure the flushing sealing water pressure is maintained at all times This is especially important for the MEK 2320 variant The main power voltage frequency must be within acceptable limits and be protected against transient sources such as electrical storms or other electrical equipment Make sure the signal cables are located far away from the power cables 11218 56 2e MEK 2300 Installation instructions 1 BTG 2002 e Ifthe transmitter must be installed high up or in some other position where it will be difficult to reach a platform should be built to provide easy unit access for service and inspection A platform is also a good solution for positioning the sampling valve e Install the sampling valve a BTG valve is recommended close to the transmitter This way the lab sample will be identical to the sample measured by the consistency transmitter MEK 2300 Installation instructions 11218 56 2e BTG 2002 1 1
90. ded in this manual terminal When the terminal is not in the wall terminal holder place it on your left forearm for right handed users and hold it securely using the hole in the handle This is the best and safest way of using it you can work properly without damaging the terminal 01218 56 2e MEK 2300 Operating instructions 13 BTG 2002 2 8 SPCwin program for PC The telephone jack on the spiral cable can be parked in the hole in the rubber casing for transport 2 7 2 Cleaning The terminal can be cleaned using a cloth dipped in water Use only mild cleaners not strong solvents Avoid getting water in the edges of the covers Use only washing up liquid Clean and dry with care 2 8 SPCwin program for PC As an alternative to the hand held terminal SPC 1000 the SPCwin PC program with a cable and a modem for connection to the JCT 1100 junc tion box is available See fig 7 below It is necessary to order the SPCwin PC program separately Contact BTG for ordering information The program runs under Windows95 or later versions and simulates an SPC 1000 in the PC windows environment All functions in the SPC 1000 are available in the SPCwin version Fig 7 SPCwin 1 DB 9 serial a connector 2 Modem 3 SPC connection cable P MA 4 CD with SPCwin Dl N 3 prog ram PC PCwin terminal Zz
91. directive conformity The units in combination with customer installed external devices may conform with EMC and safety requirements when properly in stalled and using an adequate CE marked equipment The system operator is responsible for the CE directive confor mity The conformity has to be checked by inspection Take precautions when handling equipment in pressurized hot lines in vessels Take precautions when mounting the equipment by using appropriate lift gear platforms and tools The motor and the JCT 1100 are powered by hazardous voltages SR218 56 2e MEK 2300 Safety recommendations 1 BTG 2002 1 General safety recommendations MEK 2300 Safety recommendations SR218 56 2e BTG 2002 2 Safety recommendations for consistency transmitters in the MEK 2300 Family 2 Safety recommendations for consistency transmitters in the MEK 2300 Family 2 1 These safety recommendations are based on a risk analysis carried out in accordance with the requirements of the machinery and low voltage di rective in order to comply with European standards for CE marking General In practice a consistency transmitter in operation means a risk only when covers have been removed during installation and servicing due to rotat ing machine parts or a hazardous electrical voltage Read these safety recommendations before installing the transmitter Follow the recommendations when installing the transmitter starting up
92. ds to the original adjusted value stated in the attached test protocol If not enter the Set point value at setpoint End with ee To enter the Max Feedback value see section 6 4 on page 73 point C Direct input for required feed back resolution 8 Check the feedback signal for rotation in air if necessary Go to Trend Feedback xx It is a good idea to remove the cover of the transmitter s measuring part and brake the rotating brake ring for a few seconds by hand This helps the feedback circuit to start up faster The feedback value when the transmitter rotates in air should at normal operation be between 4 and 8 when the transmitter is warmed up and settled gt If the FB value is wrong lt 1 gt 12 a new basic setting must be made Proceed to section 4 1 on page 27 c The transmitter is now ready for calibration against pulp samples Proceed to section 5 3 on page 42 26 MEK 2300 Operating instructions 01218 56 2e BTG 2002 4 1 Feedback adjustment in air 4 1 Feedback adjustment in air 4 1 1 Function gt Incorrect adjustment of feedback in air can cause the signal to become unstable and drift The purpose of this adjustment is to set the outer torque wheel so that it centers between the end position stops while the transmitter rotates in air refer also to section 3 1 of the Service manual When the transmitter rotates in air and is stabilized the fe
93. e maximum operating time Rechargeable batteries or manganese batteries provide much shorter op erating times The display lighting does not come on in battery mode in order to maximize battery life and provide maximal operating time De spite this display readability is quite sufficient in normal room lighting MEK 2300 Operating instructions 01218 56 2e BTG 2002 2 2 Connecting the SPC 1000 A Minimum circuit resist ance 250 Fig 4 Adapter for terminal connection included with SPC 1000 delivery 2 2 2 Communication As mentioned earlier the hand held terminal communicates with the transmitter via a special protocol some functions are identical to HART protocol For communication to take place the circuit resis tance must be at least 250 Q at 4 20 mA For more information see the Installation instruction section of the JCT 1100 manual included in this manual Normally the terminal s telephone jack is connected to the junction box socket This connection provides power and is also the communications link between the terminal and the transmitter Communication with the transmitter can also be achieved at a greater dis tance In theory the maximum distance from the transmitter is approxi mately 600 m which also applies for the output signal but this distance is often limited in practice to a couple of hundred meters because of volt age drop over the cable Compare section 3 5 11218 56 An ad
94. e for basic adjustment of the trans mitter s signal in air This should be done as fast as possible to limit dry running and prevent breakdown of the seal Max 5 10 min If the mechanical seal is water flushed there is no time lim it g Motor cable see section 3 3 14 49 56 34 X U V W Connected for 11218 56 2e MEK 2300 Installation instructions 51 BTG 2002 4 9 Jumper on processor card Fig 35 4 5 Suggested connection of the transmitter motor Transmitter From the pump control circuit Note Same phase as forthe circuit for manual operation Contact for motor pro tection and control device for manual run in junction box AUTO MANUAL switch Safety switch 4 9 4 8 3 Connecting a single phase motor Instructions for the connection of the transmitter s electric motor are to be found in the cover of the junction box Note that the single phase motor has a smaller voltage tolerance than the 3 phase motor It is therefore very important that the actual voltage at the mill really is within the tolerance For 110 V AC motor max voltage 121 V AC and min 99 V AC For 220 V AC motor max voltage 242 V AC and min 198 V AC Jumper on processor card The processor card located on the side of the transmitter can be config ured for RS 485 communication or for HART communication with the J4 jumper as follows 1 r 2 3 e RS485 communica
95. e multi point cali r Po X X bration according to point 4 above at There is no compen sation at this point 6 Calibrate the compensation factor 96 consistency C Be sure to make the calibration at a temperature e g 45 C which differs sub stantially from the one used in the multi point calibration e g 35 C Consistency should be normal Start by storing the consistency from the transmitter at Zomple Then enter the lab consistency at ie xx Note that because the calibration is made at one point only the value must be as accu Calc rate as possible Calculate by pressing The compensation factor is shown in the display button 4 and can also be input directly here 7 Check the compensation factor at sample You can re move the compensation by pressing 4 0 zero The compen sation factor will normally be negative in temperature compensation because the feedback signal decreases with increas ing temperature The factor varies because it depends on pulp qual ity sensor etc It increases directly in relation to the size of the sensor used and inversely with the length of the fibers in the pulp The factor i e the absolute error is normally 0 010 0 015 consistency C MEK 2300 Operating instructions 01218 56 2e BTG 2002 6 2 Compensation for varying temperature The compensation factor can be d
96. e the damping value The first number starts to blink Press 4 or v to change the number Press enter e to accept The next number will blink Repeat the procedure until done Press enter e to access the calibration constants Press 4 or v to step between calibration constants c Some transmitters have two calibration constants while others have three Repeat the steps below for each calibration constant KO K1 or K2 that is to be changed AX218 56 2e MEK 2300 JCT 1100 Operating instructions 4 23 BTG 2002 4 2 Transmitter configuration from the junction box K020 2 Press enter e if the value is to be changed When the first number starts to blink press a or v to change the number Press enter e to accept The next number will blink Repeat the procedure until done Language selection LANGUAGE en The selected language is indicated in small letters sea Press enter e to change language Scroll with the 4 or v keys to the desired language Svenska Press enter e to accept Espafiol Italiano Deutsch Portugu s Suomi Frangais 4 24 MEK 2300 JCT 1100 Operating instructions AX218 56 2e BTG 2002 5 1 Maintenance routines 5 Service instructions Fig 15 o ON 11 12 5 1 Maintenance routines No specia
97. e transmitter If the message Transmission fail appear there is a communi cation problem Refer to the Service manual and section 4 item 5 12 Press 7 in the main menu Check the stability of the signal over time If necessary go back to the main menu and set a suitable time constant Press 1s Damp see section 5 7 on page 65 Then transfer the new data to the transmitter again 13 Trim the controller See section 13 on page 93 14 Document the calibration either manually or by making a printout refer to section 5 6 2 on page 52 Refer also to sec tion 5 6 3 on page 57 or section 5 6 4 on page 59 c Calibration is now complete but can generally be improved by entering additional calibration points i e multi point calibration 46 MEK 2300 Operating instructions BTG 2002 01218 56 2e 5 3 Calibration 5 3 3 Multi point calibration See section 5 1 1 on page 32 item C Multi point calibration is based on several measured values and is used to obtain exact calibration It can be further refined by an updated cali bration see section 5 4 on page 50 Note that if you have previously made a single point calibration it will now be erased If you want to save the value sample 1 select UPDATED CALIBRATION Does the temperature normally fluctuate widely by more than approxi mately 10 C If so and you want to achieve greater precision in mea surement connect com
98. ec tric shocks Live parts are protected against normal contact provided that the connections are made correctly e When the transmitter is exposed to dangerous basic or acidic corrosive media it should be removed from the pipeline regularly for inspec tion Replace any damaged seals If the transmitter s or measuring chamber s pressurized parts have corroded check that the material is correct for the application Leakages may cause personal injury or damage to equipment due to corrosion or burning SR218 56 2e MEK 2300 Safety recommendations 5 BTG 2002 3 CE Declaration of conformity 3 CE Declaration of conformity BTG s CE Declaration of Conformity is only valid when the MEK 2300 is used in combination with other BTG equipment Manufacturer s Name Manufacturer s Address declares that the product Product Name Model Numbers complies with the amendments and requirements of the and conforms with the following product standards and PED conformity assessment procedure Safety LVD PED EMC Quality System S ffle Mars 2002 CE Declaration of Conformity According to EN 45014 BTG Pulp amp Paper Sensors AB P O Box 602 S 661 29 S FFLE Sweden Consistency Transmitter MEK 2300 2308 2310 2311 2320 2350 Machinery Directive 89 392 EEC Low Voltage Directive 73 23 EEC EMC Directive 89 336 EEC PED Directive 97 23 EEC EN 292 1 2 EN 61010 1 Pressure accessory for piping in ac
99. edback signal should be reset if it is less than 4 or greater than 8 A When the transmitter s motor is started there may be a delay of a few Warning rotating parts minutes before the feedback system comes into operation and attains equilibrium This delay is the result of the very small torques obtained when rotation takes place in air Do not allow the transmitter to rotate for more than 5 To speed up the sequence the cover over the transducer part can be re minutes in air if the moved and the transmitter retarded by hand by pressing on the brake ring mechanical seal is not flushed It is better to retard it manually If the transmitter is delivered from factory before november 1995 wait min 1 hour leaving the power to the electronics switched on before making any adjustment If the transmitter s mechanical seal is not water flushed the transmitter must not be run for more than a few minutes maximum 5 since there is a risk that the mechanical seal could overheat and become damaged We recommend that the transmitter be retarded by hand immediately after the motor is started to prevent overheating For Feedback adjustment se lect See The following menu appears see Fig 13 FE Then press EES 01218 56 2e MEK 2300 Operating instructions 27 BTG 2002 4 1 Feedback adjustment in air Fig 13 Feedback adjust menu Fig 14 Load code menu Your code is 2300 Fig 14 Feedback adjust sub me
100. ee m Sec Example SENSOR 73198814 Type of sensing element fitted PROP 73198772 Type of propeller fitted Serial no 123456 01 03 Serial number See Parts list for part nos of sensors and propellers or fig 24 and fig 25 If the transmitter is modified to another type or if the sensing element and or propeller is replaced the new type designation should be entered in the program See 3 Confi gure When the sensor is replaced it is most important for purposes of calibra tion that the correct type designation and FEEDBACK IN WATER value are entered in the program 01218 56 2e MEK 2300 Operating instructions BTG 2002 87 10 2 Service functions and signal calibration OIN 259 ON 259 ON 951D 95 BAe SV ON LL ON 7 ITT opi DAOL SV OW 20V Ts ON Dpt 9494 Aoge SY DIN 950 ON LE ZHO9 13 eM oeqpee4 OIN 259 ON 49 ON 956 E 9A0qe SY ON 269 ON 6 Apt ovoge SV OW 951 ON 90 29 2AOQE SY OIN LT x ON 9261 ZHOS 13 EM H0EqP994 9091 9091 B 95001 2568 9569 2506 25S T 0T DST DST yw eddn qu 13M0 oDue1 ouejsisuo CIXX OIXX CIXX 0IXX CIXX OIXX CIXX OIXX OTXX OPXX VIXX 00XX TIXX 00XX VIXX 00XX OTXX OPXX PIXX 80XX 00XX OTXX OPXX VIXX 00XX TIXX 00XX VIXX XX OCXX OPXX VIXX 00XX OCXX OPXX VIX
101. eedback resolution See section 5 6 5 on page 60 symptom 6 and 7 compare with section 5 2 2 on page 40 All transmitter models for normal or low consistency MEK 2300 2308 2314 2320 2340 have a standard setting for feedback in rela tion to the torque Standard setting NC 100 feedback at a torque of 100 kpm The medium consistency models MEK 2310 2311 2312 2315 have a stronger setting MC setting 100 feedback at a torque of 150 kpm These settings are incorporated before delivery using a special torque brake This is a form of calibration to make the transmitters identical with each other As a result it should be possible to exchange transmitters and transfer calibration data without the need for extensive calibration against pulp samples Where necessary it is also possible to adjust the feedback signal to show 100 at an adjustable torque of between 50 150 kpm This function is particularly useful if the difference in feedback within the predetermined measuring range is very small This can occur at low consistencies and in particular with pulp grades that have a low shear force e g recycled fibres Note however that when the size of the sensing element determines the basic sensitivity this is always changed first As the feedback resolution increases the sensitivity is increased as well as the signal noise A Standard adjustment of Feedback resolution 100 feedback NC 100 and MC 150 kpm
102. een installed test pressurization should be carried out using water in the pipeline The test pressure is adapted to standards and regulations in each country In some lines for which in spection is required pressure test must be carried out before the prod uct can be commissioned Ahazardous voltage is used to drive the electric motor The motor may only be connected by a qualified electrician in accordance with in structions The motor earth should be connected correctly and checked A lockable safety switch should be located in the immediate vicinity of the transmitter in order to facilitate work on the motor and transmit ter during operation A clear warning such as a sign should let other people know that work is in progress and that switch must not be touched MEK 2300 Safety recommendations SR218 56 2e BTG 2002 2 Safety recommendations for consistency transmitters in the MEK 2300 Family DANGER High voltage within the junction box Connections may only be carried out by qualified personnel ap plies to version with built in power supply A To prevent electrical shock connect the protective earth PE properly A There is risk of injury by crushing or cutting if the covers have been re moved 2 5 2 6 Installing the junction box A hazardous voltage is used to drive the junction box AC version The junction box may only be connected by a qualified electrician in accor dance
103. eneral information 2 Hand held Terminal SPC 1000 2 1 Fig 1 Hand held terminal SPC 1000 1 Telephone jack to junction box JCT 1100 2 Touchscreen 3 Rubber casing 1 8 General information All of BTG s smart transmitters are programmed using the BTG special hand held terminal type SPC 1000 SPC Smart Portable Communica tor This terminal communicates with the sensor via a special protocol Other makes of hand held terminals cannot be used to program BTG transmit ters even though they may operate using the HART protocol min ca O 3m 1ft max ca 2m 6 6ft 10 The hand held terminal is designed in accordance with CE s personal safety and interference requirements This means that it is harmless to the user and does not cause interference to other equipment and is not affect ed by interference from other equipment It is protected by a thick rubber casing and can therefore withstand reasonable mechanical shocks and a small amount of splashing with water Since the terminal is an electrical instrument it should be treated with care and not subjected to abnormally rough treatment c Treat the terminal with care Do not abuse it physically submerge it or spray it with water Avoid storing itin a humid environment for long periods 01218 56 2e MEK 2300 Operating instructions 5 BTG 2002 2 2 Connecting the SPC 1000 Fig 2 2 2 MEK 2300 system typical control circuit
104. ent OFFSET 40 00 s Process value offset if required Damping setting DAMPING Os Damping on output signal if required Calibration setting passer sass ao constants for the transmitter s calibration 4 20 MEK 2300 JCT 1100 Operating instructions AX218 56 2e BTG 2002 4 2 Transmitter configuration from the junction box Language selection JCT Communication Collecting samples LANGUAGE en Language setting in this case English JCT COMM ON Shutdown of communication between the junction box and the transmitter 4 2 3 Collecting samples and changing settings 4 71 12 53mA When the Result display is shown samples can be collected to calibrate the transmitter Press the sample button 0 and collect a process sample for lab calibration NO 5 X 20 No 5 on the display indicates which position in the calibration table the sample value will be stored The first empty position in the table is selected The X in X 20 will increment as each value is stored When all values have been stored an average sample value will be calculated and displayed Always mark the lab sample with the table number for the sample value The calibration value for the corresponding lab sample cannot be entered from the JCT 1100 The hand held terminal SPC 1000 must be used NO 5 20 21 OK Save the sample
105. er Blank flanges are available as accessories from BTG Fig 19 Measuring vessel for high pressures and temperatures 25 bar 226 C or 375 psi 439 F Standard design with weld ends according to ID ISO standard 1 Always mount bolt in the upper position 2 For 1 in flushing valve Pipe diameter D according to Inner Diameter ID metric standard or ISO standard See section 8 3 for detailed measures 32 MEK 2300 Installation instructions 11218 56 2e BTG 2002 4 3 High pressure pipe installations 25bar 226 C Dimensions e ome om Lm BE 165 6 5 285 11 2 410 16 1 165 6 5 285 11 2 410 16 1 310 122 460 18 1 Fig 20 Measuring vessel for high pressures and temperatures 25 bar 226 C or 375 psi 439 F Design with flanges according to DIN 2655 or ANSI 300 Ibs available to order 1 Always mount bolt in the upper position 2 For in flushing valve Fig 21 Measuring vessel flanged on two sides for consistency transmitter and sampling valve type HDS Joined by weld standard or flange available to order 11218 56 2e MEK 2300 Installation instructions 33 BTG 2002 4 3 High pressure pipe installations 25bar 226 C 4 3 2 Installation with weld in stud Fig 22 4 3 2 1 General The weld in stud is available in two sizes 1 To be fitted in pipes gt 200 250 mm 8 in 10 in see Fi
106. eration of the hand held terminal as described in section 2 on page 5 The calibration system is flexibly designed to ensure maximum precision under a wide range of operating conditions Fig 15 Typical calibration curve consistency feedback Feedback output signal 100 90 80 70 Output ii 400 504 50 40 304 f r l 3 4 Consistency Linear output signal 20 p g Example shows a sulfate 104 kraft pulp Sensing element type B is used 76 1 2 3 4 5 6 7 Consistency 6b Me Measuring span 01218 56 2e MEK 2300 Operating instructions 31 BTG 2002 5 1 General remarks on calibration and sampling 5 1 1 Calibration methods The transmitter produces a raw signal feedback that is used to calculate the consistency signal via a second degree algorithm The accuracy of the calibration constants used in the algorithm are very important for the fi nal measuring result Different calibration methods can be used Which one to choose depends on how accurate the transmitter needs to be over a wide range of consis tency The following calibration methods are available Predefined calibration curves Single point calibration Multi point calibration Updated calibration oe 9 wD Calibration constants A Predefined calibration curves see section 5 3 1 on page 42 Compared to a single point calibration Item B below this calibration
107. erational life of the seal can be obtained without water flushing provided the restrictions as outlined are borne in mind Where the water quality is extremely poor it is advantageous not to use water flushing However see the following restrictions MEK 2300 Installation instructions 11218 56 2e BTG 2002 4 7 Connection of flushing water to mechanical seal 4 7 1 1 General restrictions when not using water flushing of the mechanical seal e The transmitter motor must be interlocked with the pump motor so that transmitter and pump stop at the same time to prevent dry run e The consistency must not exceed 10 e Fillers type China clay or similar that contain small abrasive particles may not be present in large quantities larger than 5 filler content The media must not be crystallizing e g unwashed pulp containing large quantities of black liquor gt approximately 4 TS e The pulp temperature must not exceed approximately 90 C 195 F e Running the mechanical seal without water flushing is only applicable to models MEK 2300 and MEK 2314 All other models must have water flushing except model MEK 2340 which doesn t have any mechanical seal 11218 56 2e MEK 2300 Installation instructions 47 BTG 2002 4 7 Connection of flushing water to mechanical seal Fig 32 Warning sign for the flushing water connection It also indicates the direction of rotation for the motor The sign is fas
108. erent consistencies are stored in the sys tem memory When laboratory consistency data are later entered the mi croprocessor can use the input data and a mathematical formula See below to compute the linearized output signal Formula Feedback KO K1 x cons K2 x cons The calibration curve is now determined by three CALIBRATION CONSTANTS KO K1 and K2 see section 5 5 on page 50 ms The more points you have and the wider they are spread within the i ii measuring span the more accurate the calibration will be provided d blConstants a S0 k0 2 19 57 p r J that the laboratory consistency is accurate see section 5 1 3 on page 38 Lene o m and section 5 6 5 on page 60 Each type of sensing element produces a characteristic signal level FEEDBACK when it rotates in water but when the mains power fre quency affects the motor the speed of the sensing element will vary and the signal will change somewhat a 60 Hz power supply gives a higher signal than a 50 Hz supply The FEEDBACK IN WATER value is pre programmed it is used in calibration to improve the accuracy when one point is defined subject to the condition that FEEDBACK IN AIR is between 446 and 896 and that FEEDBACK IN WATER has been programmed for the correct type of sensing element and mains frequency see sensor table in Fig 24 Multi point calibration results can be improved by plotting i
109. et zero point displacement in consistency T3 10 Calibration constants K0 K1 K2 See section 5 6 3 on page 57 Calib rati 11 Present calibration values ACTIVE shows whether or not a sam ple is included in the calibration made ration cons p 12 Calibration curve based on data in item 11 above The output sig nalis linearized from this curve as indicated by the horizontal scales i e the consistency can be read direct from the signal CEE c The consistency scale of the calibration curve is limited to the set measuring span but activated points outside the span also influence the way the line is drawn 54 MEK 2300 Operating instructions BTG 2002 01218 56 2e 5 6 Evaluation and documentation of calibration s 2 PROGRAM VER 1 2 Fig 18 Specimen of on ees calibration documen oe ES Tag no 12 1234 tation printout PC Serial no 1234 012 Sensor no 7319 8814 Prop no 7319 8772 Setpoint 1595 Angle 1593 Torque kpmm 100 max F B 1694 F B in air 6 4 RANGE No Damping sec 6 di T bem m3 E 4mA cons 1 00 s 20mA cons 4 00 9 pa LE Cons offset 0 00 Calibration constants 10 RO 19 57 k1 1 38 k2 1 83 1 Samp Active Cons 0 on 0 00 1l on 1 05 2 on 1552 3 on 1 86 4 on 2 41 5 on 2 82 6 on 3 06 7 on 3 33 100 00 8 off 3 68 9 on 3492 90 00 Feedback 20 22 25 28
110. etween pump pipe elbow shut off valve and consistency transmitter The minimum distance the transmitter should be located downstream of a pump bend or elbow is the greater of two numbers Upstream the transmitter L 1 m 3 ft or the diameter of the pipe multiplied by 3 where consistency is 896 and 0 5 m 1 5 ft or the diameter of the pipe multiplied by 1 5 where consistency is 2846 Downstream the transmitter L For all consistencies the minimum distance between the transmitter and a pump bend or elbow located downstream is similarly the greater of two numbers 0 5 m 1 5 ft or the diameter of the pipe multiplied by 1 5 gt Always choose the largest of the values calculated above c In order to obtain the best measuring results it is strongly recommended that the transmitter is mounted in relation to the piping and other equipment as shown in the figures above 11218 56 2e MEK 2300 Installation instructions 17 BTG 2002 3 3 Motor Cable Fig 8 Installation of the transmitter in relation to a pipe elbow gt Alt A is the most suitable if possible avoid using alt C 3 3 Motor Cable Motor supply cable Min 4 x 1 5 mm 4 x AWG14 Shield is not required For further information See section 4 8 3 4 Choosing a site for the JCT 1100 junction box For information regarding choosing
111. f a torque brake See section 6 4 on page 73 c Bear in mind that the increase in sensitivity is illusory the difference in feedback is greater but signal resolution and accuracy of measurement are not enhanced Your first corrective action should always be to replace the sensor Symptom 6 Feedback signal too high 510090 Action Replace the sensor with a smaller one Alternatively set the feed back resolution to a higher torque up to 150 kpmm see Symptom 6 and section 6 4 on page 73 Symptom 7 Poor precision outside normal working range Calibration points are too few or too closely grouped Action Enter more calibration points making sure that they cover as much as possible of the measuring span FEEDBACK IN WA TER sample 0 should be included as it stabilizes the whole cal ibration curve MEK 2300 Operating instructions 01218 56 2e BTG 2002 5 6 Evaluation and documentation of calibration Symptom 8 Abnormal calibration constants KO should normally be the same as FEEDBACK IN WATER sample 0 This value shows where the calibration line inter sects the Y axis at 0 consistency Some deviation is normal K1 shows the slope of the calibration line which is normally pos itive K2 shows the exponential deflection of the calibration line it must always be positive Action K0 Check the type of sensor fitted and whether its FEEDBACK IN WATER value matches sample 0 see Fig 22 The value
112. for consistency control Consistency transmitter MEK 2300 Junction box type JCT 1100 Hand held terminal SPC 1000 3 System cable to transmitter Controller and recorder DCS Dilution water valve Pulp chest with sufficient mixing Stock pump BTG Sampling valve type MPS 1000 Connecting the SPC 1000 2 2 1 Power supply The hand held terminal can be powered in three different ways A 24 V DC supply from a junction box B 12 V DC supply from an AC adapter C 9 V DC from an internal battery A 24 V DC supply from a junction box This is the normal way of providing power for transmitter calibrating and process monitoring The terminal s telephone jack is connected to the junction box socket as shown in Fig 2 This also provides a communications link with the transmitter When this supply option is chosen the display lighting comes on for best visibility 3 MEK 2300 Operating instructions 01218 56 2e BTG 2002 2 2 Connecting the SPC 1000 Fig 3 Hand held terminal SPC 1000 Connections a Sensor card A A A 4 20mAMODEM PRINTER PWR ON OFF EJECT MEMORY CARD spc 1000 OO BIG A B 12 V DC supply from an AC adapter This method of supplying power is suitable during simulation and docu mentation for instance when the terminal is used at a desk A portable AC adapter is supplied w
113. g 23 2 To be fitted in pipes gt 300 mm 12 in see Fig 22 c The small 200 250 mm 8 in 10 in stud should not be used at consistencies higher than 8 10 in a long fiber pulp and 10 12 in a short fiber pulp Pulp may plug inside the cavity and in the long run damage the mechanical seal If any doubt use the measuring vessel Before commencing the work of installation check that the thickness of the pipe wall is sufficient for the pressure rating required See Fig 24 and Fig 25 The length of the measuring chamber M is 60 mm 2 4 in for installation in consistencies gt 4 For installations with consistency 4 M should be 150 mm 6 in Contact BTG for further advice Always check that this dimension agrees with the dimension stated for the position number and in the order copy c Note the length of measuring chamber M 4 3 2 2 Installation in the pipe A a Cut a hole with a diameter of 220 mm 8 6 in in the pipe and Warning Assure yourself grind and bevel the edge to receive the weld that the pipe is empty before opening it up b Weld the three deflector rails supplied upstream of the stud with their sharp ends facing upstream This will have the effect of pro tecting the sensing element which will be in the main stream c If it is impossible to weld the rails from inside the pipe grind three slots in the pipe fit the rails in the slots and weld them from the outside d Profile the wel
114. g the button until the arrow points to Off Send Remember to data 80 MEK 2300 Operating instructions 01218 56 2e BTG 2002 6 7 Simulation mode 8 Code protection A security code can be entered to prevent unauthorized adjustment of the transmitter settings All the functions in the hand held terminal can still be accessed By using the simulation function see section 6 7 on page 78 you can also see how the transmitter reacts to changes The code pro tection prevents the settings on the hand held terminal reaching the trans mitter if the security code is not entered A personal code can be entered and if this is lost a general code is available from BTG gt A general code is available from BTG if your personal code becomes lost General code 42 600 A Initial activation of the security code input of a personal code 1 This should be done at the first opportunity during installation Send 5 purn Go to data in the main menu Press S followed by coe Load old code will be displayed Enter 42 600 applies only on this occasion Press Mana 2 Enter your personal code Load new code will appear Enter your personal code e g 123 max 8 digits and press Mena 3 Press GR to get Re and enter your code e g 123 follow with Mex Your new code is now activated finish by pressing EJ Data can now be transferred to the transmitter If
115. ge 1 2 Supply voltage for requirements For safe operation the external 24 V DC supply must comply with SELV PELV Separated Extra Low voltage To avoid power outs BTG recommends a UPS Uninterruptible Power Supply power supply unit Cable connections must be made according to section 3 3 Cabling on page 3 12 The junction box is tested as a complete system to conform with the relevant CE directives and their standards The junction box and transmitter may conform with EMC and associat ed safety requirements when properly installed in combination with cus tomer installed external devices and using an adequate power supply The mill operator is responsible for CE directive conformity Conformity has to be checked by inspection AX218 56 2e MEK 2300 JCT 1100 Installation instructions 3 11 BTG 2002 3 3 Cabling 3 3 Cabling 3 3 1 Cable types BTG recommends properly dimensioned cables as described below for connections between the junction box and external equipment The power cable should be in accordance with the IEC 227 245 standard Power supply cable Junction box with built in power supply unit 100 240 V AC Shielded 280 95 3 x 0 75 mm 3 x AWGI8 with PE Junction box without built in power supply unit 24 V DC Shielded 280 96 2 x 1 5 mm 2 x AWG14 Maximum allowed cable resistance is 3 0 Q c BTG recommends that the power supply cable has a 2 A slow blow fuse
116. ges for different production circumstances can be changed with binary inputs to the transmitter Range Input A Input B 1 0 0 2 1 0 3 0 1 4 1 1 3 16 MEK 2300 JCT 1100 Installation instructions AX218 56 2e BTG 2002 4 1 Starting the junction box 4 Operating instructions 4 1 Starting the junction box The junction box is started by switching on the power supply with the switch in the terminal box See fig 13 below See the start up instructions in the transmitter section of this manual for detailed start up instructions Fig 13 Power supply switch Lei EE V TU FSZZAT S x E 1 Power supply switch P QQ L FSTZAT o IY conn RIS N L PEG E SS 3 V AX218 56 2e MEK 2300 JCT 1100 Operating instructions BTG 2002 4 2 Transmitter configuration from the junction box 4 2 Transmitter configuration from the junction box 4 2 1 General information The JCT 1100 junction box is equipped with a display and four push but tons The display has one row of sixteen characters The operator can make some basic adjustments using the push buttons and the display without using the hand held terminal SPC 1000 To make a complete calibration or to configure some major settings the SPC 1000 must be used The transmitter settings made from the junction box can be loaded into the
117. h the standard model of the MEK 2300 and where consistency does not exceed approximately 4 4 2 1 Installation with measuring vessel 4 2 1 1 General Standard measuring vessels are designed for welded connection See Fig 9 Fig 12 c The dimensions for the welded in measuring vessel weld ends are given in section 8 3 Measuring vessels designed for flange connection conforming to DIN 2642 ANSI 150 Ibs or other standards are available to order See Fig 13 c The measuring vessel s pressure class rating determines the choice of flange despite the fact that some flanges will accept higher pressures Standard measuring vessels for vertical pipe installations are left hand see Fig 10 Measuring vessels for horizontal or inclined pipes may be either left hand or right hand The length of the measuring chamber M in Fig 9 is determined by BTG and may be either 70 100 or 150 mm 2 75 4 or 6 in It may only be Measuring chamber length longer than this if a shut off valve is also to be installed Always check M is determined by BTG that this dimension agrees with the dimension stated for the position Correct length is vital for number and in the order copy the transmitter s function 4 2 1 2 Installation in pipe a Turn the vessel so that the flow direction arrow points in the actual direction of flow see Fig 10 Fig 13 b Align the vessel and any gaskets before welding it to its stud join ing the flanges If weld
118. hand held terminal press read buttons for MEK 2300 3 Particulars to be filled in by hand 4 Pre programmed transmitter data Es Tx spec GARD and 5 Trouble shooting data During operation ANGLE should match SETPOINT tolerance 20 units Nominal reading should be 1600 adjustable range 1440 1680 units Note These values has been changed In the first version the nominal set point was ca 360 and the adjustable range 320 380 units See section 15 Software revisions FEEDBACK IN AIR most recent setting Normal values 4 896 If the reading is high e g 35 this indicates that the feedback was set with the transmitter rotating in pulp Es laut gt Aut Send t 2300 Preset sensor code Torque value is the basic sensitivity set 100 kpmm for standard models NC and 150 kpmm for MC models See section 6 4 max FB Feedback is the feedback raw signal at set Torque value To obtain the actual Feedback value in Feedback in air gue adguse code 2300 Torque max FB Sensor sens calib 6 Externally set measuring RANGE choice of four 7 Set DAMPING TIME in seconds Sa 01218 56 2e MEK 2300 Operating instructions BTG 2002 53 5 6 Evaluation and documentation of calibration 8 Setmeasuring SPAN dera 9 OFFSET S
119. he dilution water control valve correctly and use a high quality precision actuator Make sure that the dilution water pressure is stable and that the water is injected at high velocity into the pump suction Correct dilution is essential to ensure reliable transmitter operation Planning the installation Advice and recommendations The MEK 2300 is a precision instrument designed to provide accurate and reliable measurements over a long period of time To make sure of obtaining the best possible results please note the following recommen dations and advice when planning your installation Dilution Dilution water should be pressure controlled or otherwise protected from major pressure variations To ensure good control dilute no more than approximately 20 in each dilution stage though a higher percentage may be acceptable early in the process If considerable dilution is required it should be carried out in two stages 70 to 80 of the water being added in the bottom part of the pulp chest and the remainder in the form of a fine dilution upstream of the pump Thorough mixing at the bottom of the pulp chest upstream of the trans mitter is vital to avoid consistency variations The dilution water pipe should be inserted in such a way that it extends a minimum of 15 50 mm 0 6 2 in depending upon pipe size into the main pipe on the suction side of the pump See Fig 5 The pipe must be inserted perpendicular to the suction
120. he transmitter This section contains detailed instructions for installing the trans mitter and measuring vessel 4 Installing the junction box This section describes how to connect main power supply inputs and outputs 5 Quick start checklist 6 Type sign explanation 7 Miscellaneous 11218 56 2e MEK 2300 Installation instructions 3 BTG 2002 1 2 Visual inspection 1 2 Visual inspection This product was inspected and tested prior to shipment However even the best products can sustain transport damage that will only be seen if the product is inspected Before proceeding check the transmitter the hand held terminal and the junction box for transport damage Look for loose screws wires or electronic components MEK 2300 Installation instructions 11218 56 2e BTG 2002 2 1 The system 2 Basic system description Fig 1 MEK 2300 1 Transmitter 2 Junction box type JCT 2 1 The system The system consists of a transmitter connected by a system cable to a junction box type JCT 1100 To set up the transmitter a hand held termi nal type SPC 1000 must first be connected see Fig 1 As an alternative a PC with BTG s SPCwin program installed can be connected to JCT 1100 with BTG s modem cable and be used to set up the transmitter 1100 3 hand held terminal type SPC 1000 The transmitter contains measurement devices and electronic circuitry for signal conversion It is mounted in
121. he transmitter power supply and the DCS Digital Control System Isolation amplifier for the analog out signal from the transmitter for galvanic isolation between the transmitter and mill equipment Local connection for a hand held terminal SPC 1000 or for a lab top PC with BTG s SPCwin program Fig 1 Front panel overview 1 Single line LCD display e a 2 Keys for access to 1 basic settings X XX 96 XX XX mA 3 Front cover G 4 LEDindicating 24 V DC 2 power on amp v 5 SPC 1000 connector Sample Enter 6 Terminal connection box 3 7 System cable to transmitter 5 i Terminal o D el 6 EU T EU TJ TIT SS U Two types of power supply design are available Either with a built in 100 240 V AC 24 V DC power supply unit or for customer provided 24 V DC power supply AX218 56 2e MEK 2300 JCT 1100 Product introduction 1 1 BTG 2002 1 2 Technical data 1 2 Technical data Type Manufacturer JCT 1100 for BTG transmitters BTG S ffle Sweden Electronic Enclosure Protection rating Weight Made of poly carbonate thermoplastic with a transparent cover Nickel paint coated internally to protect against EMC interferen
122. he zero point is independent of the measuring span setting we rec ommend that you make an offset adjustment in the transmitter program at a suitable opportunity 01218 56 2e MEK 2300 Operating instructions 93 BTG 2002 10 2 Service functions and signal calibration 94 MEK 2300 Operating instructions BTG 2002 01218 56 2e 14 1 Digital communication according to the HART protocol 14 Using the HART communication Refer to II218 56 for the functions available on the digital communica tion superimposed on the 4 20 mA signal loop Since this communication takes place using the HART standard proto col refer to the relevant user instructions from the HART association BTG is also able to provide advice on the relevant code instructions c For reliable HART communication to the DCS the polling mode should be used When connecting the SPC 1000 the HART communication to the DCS may be inhibited during this occasion 14 1 Digital communication according to the HARTO protocol The transmitter complies to the HART protocol standard requirements To set and calibrate the transmitter the BTG hand held terminal is re quired Since additional functions are not covered by the HART protocol a standard HART competitive terminal can only be used for certain func tions Certain functions are available as a digital signal according to the HART protocol and BELL 202 modem standard The communication takes place
123. hould be installed as close as possible to the point where the dilution water is injected to ensure minimum time lag 2 Recommended minimum distances See Fig 7 11218 56 2e MEK 2300 Installation instructions BTG 2002 15 3 2 Choosing a site for the transmitter 3 See Fig 7 and Fig 8 Proximity to bends or elbows in pipes is to be avoided due to turbulence and dewatering For optimum results when the transmitter is positioned downstream of a pump or pipe el bow it should be located at the theoretical outer turn of the pulp stream 4 If the transmitter is to be installed at a height where it will be difficult to reach build a platform that will make it more easily accessible for service and inspection 5 Itis important to choose a location with sufficient room for insertion and removal of the transmitter and opening its covers The overall length of the transmitter is 490 mm 19 5 in Remember to leave suf ficient room for insertion and removal 6 Install the transmitter so that it is protected from direct mechanical damage Install under a roof if there is any risk of frequent water or pulp spray 7 Protect the transmitter from heavy vibration such as cavitation or un balanced pumps One method is to install a rubber bellows in the line MEK 2300 Installation instructions 11218 56 2e BTG 2002 3 2 Choosing a site for the transmitter Fig 7 Recommended minimum calming length distance b
124. in stud counted from its center 36 MEK 2300 Installation instructions 11218 56 2e BTG 2002 4 3 High pressure pipe installations 25bar 226 C Fig 24 Material thickness in main pipe to 25 bar pressure For high pressure weld in studs pipe size 300 mm 12 in Minimum ma terial thick ness in main pipe for PN 25 Outer diameter of main pipe tmin mm QD mm A Stainless steel to SS2343 AISI 316 B Stainless steel to 254 SMO C Hastelloy C 276 tmin mm o Installation data Pressure 25 bar 360 psi Temperature 226 C 440 F 14 0 13 0 12 0 11 0 10 0 9 0 8 0 7 0 6 0 5 0 300 400 500 600 700 800 D mm Calculation values for weld in stud Outer diameter OD 240 mm Material thickness t 10 mm Omax Max permitted stress value N mm SS2343 Omax 95 N mm 254 SMO Omax 122 N mm Hastelloy C 276 Omax 127 N mm 11218 56 2e MEK 2300 Installation instructions 37 BTG 2002 4 3 High pressure pipe installations 25bar 226 C Fig 25 Material thickness in main pipe to PN16 For high pressure weld in studs for PN 16 Pipe size gt 250 mm 10 in tmin mm Minimum ma terial thick ness in main pipe for PN 16 tmin mm D mm Outerdiameter of main pipe A Stainless steel 300 400 500 600 7
125. ing number Frequency AC version Installation category AC version Production Factory Always refer to the type sign when ordering spare parts 2 BTG Pulp amp Paper Sensors AB Industrigatan 1 3 661 29 S ffle SWEDEN www btgppt com CE 4 5 6 A 6 JCT 1100 12345 9 400 240 VAC 50 60 Hz 10 mes UE rcu X P 11 Warning sign The device is designed for industrial use Installation handling and service must only be carried out by trained and authorized personnel and according to relevant standards and legislation Read the manual for detailed information and pay special attention to the warning signs MEK 2300 JCT 1100 Product introduction BTG 2002 AX218 56 2e 1 4 CE Declaration of conformity 1 4 CE Declaration of conformity BTG s CE Declaration of Conformity is only valid when the junction box is used in combination with other BTG equipment Manufacturer s Name Manufacturer s Address declares that the product Product Name Model Number conforms with the following Product Standards LVD EMC and complies with the requirements of the S ffle Jan 1999 CE Declaration of Conformity According to EN 45014 BTG Pulp amp Paper Technology AB P O Box 602 S 661 29 SAFFLE Sweden Junction box JCT 1100 EN 61010 1 April93 EN 50081 2 Aug 93 EN 50082 2 Mar 95 Low
126. ing use a full penetration weld Do not turn the vessel c Fit the 8 mm stud bolt supplied into the upper hole in the transmit upside down Air may ter flange and lock it in position with thread sealant accumulate in its upper part and disturb d Check the inspection cover to ensure that it is correctly positioned measurement and tightened e If the transmitter and any sampling valve are not to be installed im mediately screw a blank flange onto the transmitter Blank flang 20 MEK 2300 Installation instructions 11218 56 2e BTG 2002 4 2 Low pressure pipe installations PN10 Fig es are available as accessories from BTG 9 Measuring vessel with weld ends for low Min pressures and vertical mounting left hand M 900 design lt Mis Measuring vessel 2 Measuring chamber in the measuring vessel 3 Inspection cover 4 Stud bolt Notel Fit bolt in the upper hole 5 Flovv direction arrovv 6 Inspection area 1 4 5 2 Il L x Ba 6 LI ce LJ 5 Offset measure x D x Conn mm mm 100 106 71 4 114 3 67 Y 125 131 58 X r 5 139 7 53 lt gt a 150 156 45 D 6 168 3 39 D Outer diameter of pipe 200 206 20 8 219 1 13 5 250 256 0 10 273 0 11218 56 2e MEK 2300 Installation instructions 21 BTG 2002 4 2 Low pressure pipe installations PN10 Fig 10 Measuring vessel with weld ends for low press
127. ings for all four measuring ranges For practical reasons it is preferable to store only one mill section s transmitters Tag No on one card A Storing the transmitter s data on the back up card Store data 1 Make a standard complete calibration and adjustment of the relevant transmitter 2 Switch off the hand held terminal and replace the sensor card with the back up card 3 Switch on the hand held terminal Press GARD The message for this function is displayed only in English 4 Select the relevant storage position For example in the case of stor age position No 34 of 125 press 10 three times 30 and i four times 4 30 4 34 4 20mA MODEMPRINTER PWR ON OFF EJECT MEMORY CARD Backup card SPC 1000 74414152 10 1 STORE DATA SPC 1000 gt BACKUP CARD READ DATA BACKUP CARD gt SPC 1000 1 125 0 STORE 10 DATA SPC 1000 Communication Terminal 5 Then press BAM to store the terminal s transmitter adjustment for the relevant transmitter TAG No on the back up card Then Verif press for storage to be executed 01218 56 2e MEK 2300 Operating instructions 57 BTG 2002 5 6 Evaluation and documentation of calibration Note the relevant TAG No and the number of the storage position on a separate identification li
128. ions and signal calibration 12 Training The SPC 1000 hand held terminal can be used for training without any other equipment being connected It is preferable in this case if the hand held terminal is powered by the AC adapter When no transmitter is con nected it is not possible to send or read data from the transmitter and thus the program sometimes locks If this occurs switch the terminal off and start it again Typical functions that can be simulated are single point multi point and updated calibration calibration using given calibration constants mea suring span adjustment and offset adjustment The result is seen on the calibration curve or printout The temperature compensation or produc tion calculation can also be simulated but a transmitter needs to be con nected in this case Refer to the relevant section in the instructions with respect to each item To enter the feedback values for calibration or the calibration constants goto Site al 01218 56 2e MEK 2300 Operating instructions 91 BTG 2002 10 2 Service functions and signal calibration 92 MEK 2300 Operating instructions BTG 2002 01218 56 2e 10 2 Service functions and signal calibration 13 Trimming the controller Once a transmitter has been calibrated the controller should be trimmed PI controllers are the type traditionally used in consistency transmitter circuits the following is a brief description of the
129. irectly entered at sample s if known unit Off function The function can be turned off by pressing the button see item 1 C Press the button and observe the arrows move it should point to Off 8 Don tforgetto Sea 99 01218 56 2e MEK 2300 Operating instructions BTG 2002 71 6 3 Manual loading of feedback settings 6 3 Manual loading of feedback settings See section 5 1 2 on page 35 item E This function will be found in Sate RM It is a special function which can be of assistance in some cases Procedure 1 Goto MAIN MENU option Este L 2 Step with the arrow at roy and load the desired feedback set ss 222200 75 rH Load new value FEEDBACK IN WATER value for the sensor fitted Exit by press ingthe MV key 3 Do you also want to load the corresponding laboratory sample val se ting by pressing Sample 0 should normally have the 8888882000 SESSSSOQOO ues If so goto 1 amp 5 cons 4 Press new to make a new calibration c The word New calibration must appear to make a new calculation 5 Press d to enter the calibration to the transmitter 72 MEK 2300 Operating instructions 01218 56 2e BTG 2002 6 4 Altering Feedback resolution 6 4 Altering F
130. isplayed at critical points in the programming process Warning notices are included at points where faulty programming might affect the output signal A code query has been inserted at highly critical points in the program where the basic setting of the transmitter could be affected Optionally a personal code can also be inserted to prevent any unau thorized access to the program An overriding default code is available from BTG The first touch screen is shown in Fig 8 select by touching the area but ton with the text Sensor card The buttons function is explained in section Button functions for opening and main menus 4 20mA MODEM PRINTER PWR ON OFF EJECT MEMORY CARD 16 MEK 2300 Operating instructions 01218 56 2e BTG 2002 3 2 Programming the transmitter with hand held terminal SPC 1000 general A Button functions for opening and main menu i A A A A A Fig 9 Selecti on of p rog ra m 4 20mA MODEMPRINTER PWR ON OFF EJECT MEMORY CARD for the normal operation of the transmitter SENSOR BACKUP CARD CARD SPC 1000 Communication Terminal Used when the standard program card is installed for the normal sensor setting BACKUP CARD Used when the back up card is installed for storing sensor settings The first two button functions are common for all BTG smart transmit ters and independent of the type of sensor These buttons are always in
131. ith the hand held terminal The AC adapter is available for 110 V AC or 220 V AC The output supply is 12 V DC Check before connecting to the main power supply that the AC adapter Check that the AC adapter is made for the correct supply voltage is suited to power supply voltage 110 or 220 V AC The AC adapter is supplied with a cord for plugging in to the mains pow er supply In some cases the molded plug may not fit your outlet Re place the plug with a suitable standard plug if this is the case The AC adapter s 12 V connection is connected to the socket on top of the terminal This is marked PWR 12 V DC 0 4 A AC adapter DC jack with 2 mm connection pins The connection goes to the casing and the connection goes to the center pin Boc e The display lighting also comes on when the 12 V power supply is used 01218 56 2e MEK 2300 Operating instructions 7 BTG 2002 2 2 Connecting the SPC 1000 C 9 V DC supply from an integral battery The battery power supply is used for example when the terminal is con nected to the 4 20 mA signal loop at a location other than at the junction box An internal standard 9 V DC battery is located behind a cover on the back of the terminal To provide maximum operating time a type 6F22 high power alkaline 9 V DC battery should be used A battery of this type will operate for approximately 3 hours c Switch off the terminal immediately after use to obtain th
132. l maintenance routines are required However it is recom mended that the following preventive maintenance is carried out e Check that the junction box is not damaged and complies with the protection rating IP65 e Check that the cables to and from the junction box are not damaged e Keep the junction box clean and free from pulp etc 5 2 Service hardware The different hardware components are identified in fig 15 below Hardware components Screws for terminal cover 2x Screws for front panel 4x 24 V DC connector AC power connector AC power supply or 24 V DC power supply board Mounting plate for power supply unit 24 V DC LED Display connector SPC 1000 connector Screws for main circuit board 15x Isolation amplifiers Screw for front panel grounding strap AX218 56 2e MEK 2300 JCT 1100 Service instructions 5 25 BTG 2002 5 2 Service hardware 5 2 1 Replacing the isolation amplifier DANGER High voltage within the It is possible to have three isolation amplifier circuit boards in the junc tion box Normally only one is mounted and used junction box applies to The circuit boards can be removed or replaced if necessary If the circuit versions with 100 240 board is removed the connector pins have to be strapped in order to get V AC power supply an output signal See fig 16 below The front panel has to be removed before an isolation amplifier can be replaced o
133. l over time in 0 100 01218 56 2e MEK 2300 Operating instructions 37 BTG 2002 5 1 General remarks on calibration and sampling H Simulation mode see section 6 7 on page 78 Sir S The me function is found in the main menu under Itcan be enabled ON or disabled OFF normal status c This function is used to simulate different settings on the terminal without affecting the actual output signal All functions with the exception of Feedback adjust and Damp can be reset in different ways to achieve optimum adjustment The result is then viewed in the Trend display This can be sent to the transmitter once you are satisfied with the adjustment The simulation function is then auto matically disabled 5 1 3 General remarks on sampling The only way to calibrate the transmitter correctly is to take correct laboratory samples of various consistencies and adjust the transmitter accordingly Sampling procedure 1 Install the sampling valve close to the transmitter Where a measuring vessel is used it 1s best to install the valve in the vessel itself The measuring vessel can be ordered complete with weld in stud for sampling valve Otherwise the valve should be installed in such a Way as to avoid interference from pipe bends pumps etc Recom mendations regarding turbulence damping zones are the same as for the transmitter itself If the transmitter and sampling valve a
134. le way in accordance with the origi nal calibration The sample volume must not be too small At least 0 5 liter 0 13 US gallon is necessary The treatment of the sample after being extracted from the pipe must be made in a uniform repeatable way The lab analysis shall be in accordance with the established standards e g SCAN C 17 64 or valid TAPPI standard A rapid analysis with drying on a heating 01218 56 2e MEK 2300 Operating instructions BTG 2002 99 16 3 Recommendation concerning transmitters used for simpler measurements e g 16 3 16 4 16 5 plate is not a reliable method A combination of verification against torque brake and lab samples might in practise be suitable By this calibration can first be checked against lab samples during the normal follow up Should a deviation be discovered check and adjust the transmitter against the torque brake If comparison to torque brake corresponds to the previous result but the lab value differs when compared with the transmitter value you can sus pect a change of some component in the pulp suspension which has af fected the measurement If so investigate the reason A re calibration or possibly a zero point offset of the transmitter might then be necessary On the MEK 2300 it is possible to compensate for certain influencing factors temperature or use several measuring ranges in case of changed pulp composition A printout or other automatic
135. lushing water pressure is maintained at all times If pressure is lost fibers may clog below the sens ing element and affect measurements 14 MEK 2300 Installation instructions 11218 56 2e BTG 2002 3 2 Choosing a site for the transmitter Fig 6 MEK 2300 system typical control circuit for consistency control Consistency transmitter MEK 2300 Junction box type JCT 1100 Hand held terminal SPC 1000 3 System cable to transmitter Controller and recorder DCS Dilution water valve Pulp chest with sufficient mixing Stock pump BTG Sampling valve type MPS 1000 3 2 Choosing a site for the transmitter Careful siting of the transmitter is essential for optimum performance and ease of maintenance The transmitter can be installed in a vertical horizontal or inclined pipe If installed in a horizontal or inclined pipe care should be taken in locat ing it so that it does not measure large bubbles trapped in the pulp Measuring vessels for use in low pressure installations may be of left hand or right hand design Fig 6 shows a typical installation Your BTG sales engineer will be pleased to assist in selecting the location that will give the best results consistent with your specific control strategy Important recommendations There are a number of considerations to take into account 1 The transmitter s
136. lution water valve for consistency control 8 Miscellaneous 8 1 Dimensioning of the dilution water valve for consistency control Calculation of dilution water quantity Q Required data Production t h P Uncontrolled consistency 26 Cl Desired controlled consistency C2 8 1 1 Calculation formula for dilution water flow Px100 C1 C2 _ 3 CIx C2 Q mm Example Production 8 t h Uncontrolled consistency 396 Desired controlled consistency 2 596 8 x 100 3 2 5 800 x 0 5 3 m EU ES RONA a 9 mi Q 3x 2 5 7 5 8 1 2 Dimensioning of the dilution water valve Calculation formula for the capacity factor R zn up Ky Q 1000 xA NOTE C Ky x 1 155 K Capacity factor m2 h Q Quantity of liquid m h p Density of liquid kg m x Pressure drop across the control valve bar When the dilution water density normally is 1000 kg m the formula can 11218 56 2e MEK 2300 Installation instructions 63 BTG 2002 8 1 Dimensioning of the dilution water valve for consistency control Fig 36 Example of traditional dilution before pulp pump be simplified to The pressure of the dilution water should not vary more than 15 In case of large pressure variations we recommend a pressure control of the dilution water see directions in section 3 1 Example When the installation is traditionally made according to Fig 36 where the dilution water is injecte
137. m torque respectively Criteria The transmitter must be started up and rotating in air l Press Se inthe main menu followed by Feedba adjust 2 The adjustment is protected by a code 2300 Enter this code Press Sensor sens 2 calib 3 Fit the torque brake as shown in data sheet D M750 10 appendix to the Service Manual SM218 56 Adjust the dynamometer torque to 100 and 150 kpmm respectively according to the transmitter model see above 01218 56 2e MEK 2300 Operating instructions 73 BTG 2002 6 4 Altering Feedback resolution FB 1003 Press Porque Enter 100 or 150 kpmm as required 4 Press St to transfer the calibration to the transmitter The raw signal for SETPOINT ANGLE FEEDBACK and AUX in will then be displayed The feedback signal is now calibrated against the torque adjusted 5 Exitby pressing PT B Increased sensitivity of feedback resolution 100 feedback 50 100 kpmm torque max 150 c The transmitters are not interchangeable The standard Feedback in water setting is not valid Procedure Refer to Item A The difference is that a different torque required for 10096 feedback is set during Item 3 e g 50 kpmm This means double the resolution as at a torque of 100 kpmm Enter this value as per Item 4 C Direct input for required feedback resolution gt This adjustment is not as accurate as the previous adjustments but works qui
138. may extend into the pulp line Align it to the vertical line 4 2 2 Installation with weld in stud 4 2 2 1 General Before starting installation check that the thickness of the pipe wall is sufficient for the pressure rating required See Fig 14 The length of the measuring chamber M is determined by BTG and may be either 70 100 or 150 mm 2 75 4 or 6 in It may only be longer than this if a shut off valve is also to be installed Always check that this dimension agrees with the dimension stated for the position number and in the order copy The dimension is also stated on the weld in stud See Fig 15 Fig 16 for weld in stud for PN10 4 2 2 2 Installation in pipe a Cut a hole with a 308 mm 12 13 in diameter in the pipe and grind and bevel the edge to receive the weld b In installations where the length of the measuring chamber is 70 mm 2 75 in and there is a possibility of the presence of solids in the pulp stream the three deflector rails supplied should be welded upstream of the stud with their sharp ends facing upstream see Fig 16 This will have the effect of protecting the sensing element which will be in the main stream Should the guide rails become lost new ones can easily be made See Fig 16 If it is impossible to weld the rails from inside the pipe grind three slots in the pipe fit the rails in the slots and weld them from the outside c Profile the weld in stud to the pipe dimensions by referen
139. n additional points under updated calibration The consistency feedback curve is normally parabolic see Fig 15 the signal increases with increasing consistency If something goes wrong for example if laboratory testing gives erroneous results for a high con sistency sample the calibration curve may be inverted i e the signal lev el falls with increasing consistency This makes calibration constant K2 negative which is not admissible If this happens the calibration curve for the output signal is automatically redrawn calculated to a straight line with K2 0 The output signal in this case is not linearized By checking the calibration curve or running a printout you can check which calibration point is distorting the result and correct the calibration by deactivating that point 34 MEK 2300 Operating instructions 01218 56 2e BTG 2002 5 1 General remarks on calibration and sampling To Ca Take lab Special Sample cons const c Action 1 Push Take sample and collect sample 2 After lab evaluation push Load lab gons gt and enter the value lt Special func are used to manually load ri s or cal constants e a bl onstants a 50 k0 19 57 El 2 138 klk2 1 83 o 1 00 Span 20 mal 4 00 isc Print Trend
140. n an unstable poorly mixed pulp flow see section 5 6 5 on page 60 Symptom 5 In such a case you should consider e relocating the Transmitter farther from the pump improving the remixing system or the supply of dilution water etc If the time constant is too long you loose the advantage of the transmit ter s high precision Contact BTG for further advice Procedure 1 Study the stability of the signal under MAIN MENU option ee 2 Goto MAIN MENU option x Enter a suitable time constant Send e g 5 seconds Press data 3 Returnto TS and study the result 4 If necessary adjust the time constant 01218 56 2e MEK 2300 Operating instructions 65 BTG 2002 5 8 Setting measuring span and alarm limits 5 8 Setting measuring span and alarm limits See section 5 1 2 on page 35 item B Normal measuring span settings are e Normal consistency range 1 896 Nominal span 1 High consistency range 8 16 Nominal span 2 Try to keep the measuring span as narrow as possible remembering that it must never extend below the sensing element s minimum consistency limit Procedure Edit X 1 Press the key for the measurement range you want c Range indication in the main menu signal reading display refers to the externally connected measuring range 2 Setthe consistency level for the lower limit of the measuring span
141. n in fig 18 and draw a calibration graph gt Actual data are also available at 3 amp 8 and Eie Lb 5 6 2 Documenting calibrations see Fig 18 with printer or manually 1 Plug the printer into the hand held terminal Switch on the printer 2 Select printout from the measuring range you want to print press Print Then select eng Press MAIN MENU option and a printout is made If the display reads No comm with printer check that the printer is correctly plugged in that the battery is charged or the printer is connected to a AC adapter and that the baud rate 2400 is correctly set Fig 18 shows a specimen printout If you do not have a printer access the relevant parts of the menu and make a manual note of the readings corresponding to those shown in Fig 18 Items 1 7 10 12 and 16 19 should always be recorded In addi tion you should draw a consistency feedback calibration curve MEK 2300 Operating instructions 01218 56 2e BTG 2002 5 6 Evaluation and documentation of calibration Comments on specimen printout Fig 18 Corresponding data can be accessed in the program under the options shown in parentheses 1l CONSISTENCY TRANSMITTER model press read buttons for MEK 2300 CARD and 2 PROGRAM VERSION software release and data and language version in use Switch on the
142. n with sensor processor card software versions See section 15 3 below for further information MEK 2300 sensor processor card E prom Two different hardware types of sensor processor cards have been deliv ered with the MEK 2300 The older version has traditional electronic components and is encapsu lated in a metal cover The software on this circuit board has versions 1 1 1 2 1 n All versions A F and forward of the PCMCIA sensor card software can be used with this circuit board The new type delivered today has surface mounted electronics and is not encapsulated in a metal cover The software on this circuit board has versions 2 1 2 2 2 n This type of circuit board requires version E F and forward of the PCMCIA sensor card software 01218 56 2e MEK 2300 Operating instructions 97 BTG 2002 15 3 MEK 2300 sensor processor card E prom 98 MEK 2300 Operating instructions BTG 2002 01218 56 2e 16 1 General 16 Maintenance Planning and Quality Assurance 16 1 16 2 General In April 1993 BTG K lle Inventing AB attained ISO 9001 certification concerning development design and production among others for pro cess control equipment for the pulp and paper industry Repair at the fac tory is made in accordance with appropriate demands from new production every transmitter is e g tested according to a specified pro gram The result is documented and included in the delivery
143. nd user to ensure that adequate working space is available gt For unit conversions please refer to section 8 4 on page 70 MEK 2300 Installation instructions 11218 56 2e BTG 2002 2 2 Working space and installation clearance requirements Fig 2 Transmitter dimensions mm in min 500 20 2 2 1 Transmitter The dimensions of the transmitter are given in Fig 2 a75 115 14 7 ant VIII MAIS Remember to provide access room for an operator as well as the full depth of the transmitter and junction box The transmitter including sensor and propeller is approximately 490 mm 19 5 in long In addition to the installed length of the transmitter which will be 375 mm 15 in you will need a minimum of an additional 115 mm 4 5 in for extracting the transmitter from the pulp line Leave sufficient room around the transmitter to perform this task The transmitter weighs approximately 36 kg 80 lbs 2 2 2 Junction box type JCT 1100 For information regarding the System description for JCT 1100 see the Product introduction section of the JCT 1100 manual included in this manual For information regarding the dimensions installation clearances etc for JCT 1100 see the Installation instructions section of the JCT 1100 manual included in this manual 11218 56 2e MEK 2300 Installation instructions 7 BTG 2002 2 2 Working space and
144. ne as sample No 0 See procedure below Feedback in water and the relevant sensing element and propeller num bers are entered when supplied by the factory The new data must be set when the sensing element is replaced See section 5 2 1 on page 39 40 MEK 2300 Operating instructions 01218 56 2e BTG 2002 5 2 Criteria for calibration Factors influencing feedback in water value The feedback in water value for the sensing element in question is giv en in Fig 23 A First determine the mains power frequency 50 or 60 Hz at loca tion B Then determine for which strength the transmitter is adjusted torque in relation to the feedback signal The standard settings are 100 Feedback signal corresponds to 100 kpmm torque NCzNormal Consistency models Transmitter models MEK 2300 2314 2320 2340 100 Feedback signal corresponds to 150 kpmm torque MCzMedium Consistency models Transmitter models MEK 2310 2311 2312 2315 c Other settings can also be made for example to increase sensitivity see section 6 4 on page 73 If the transmitter strength is adjusted differently to the above the pre determined feedback water value is not relevant In that case do not use sample 0 feedback in water value or let the transmitter run in water measure the actual feedback in water value and enter it at me as sample 0 C Then determine which actual sensing element is used see t
145. ng the transmitter against the consistency in the process Can also be used as a training and simula tion function Shows the differences between the stored calibration points and the cali bration curve as well as the calibration constants and the correlation factor Setting the minimum consistency of the measuring span 01218 56 2e MEK 2300 Operating instructions 19 BTG 2002 3 2 Programming the transmitter with hand held terminal SPC 1000 general 20 mA Setting the maximum consistency of the measuring span Setting the time constant damping 1 99 seconds SPC 1000 Communication Terminal Used for zero point offset of the calibra tion curve directly or against a laboratory sample Sends the terminal settings to the transmitter The transfer can be protect ed against unauthorized action by using a code lock SPC 1000 Communication Terminal Other functions Factory settings code protected Back up data from the termi nal s second memory if the editing memo ry data is lost or when using the back up card Simulation function for manipulation of the settings without disrupting the output signal MEK 2300 Operating instructions 01218 56 2e BTG 2002
146. nge the Span When the first number starts to blink press 4 or v to change the number Press enter e to accept The next number will blink Repeat the procedure until done After the last value has been entered the new span is set Offset adjustment aues 10 00 Press the sample button 0 in this position and collect a process sample for lab calibration SAMPLE SAMPLE is displayed while sample values are collected and an average is calculated 4 22 MEK 2300 JCT 1100 Operating instructions AX218 56 2e BTG 2002 4 2 Transmitter configuration from the junction box Damping setting Calibration setting 1 77 OK NOT SAVED OFFSET 0 00 1 77 0 08 DAMPING Os 00 s CALIBRATION Save the sample value by pressing enter e or discard the sample value by pressing 4 or v NOT SAVED is displayed if the sample value is discarded When the results from the lab sample are ready calculate the offset the value for the lab sample minus the sample value If the lab value is 1 69 the offset will then be 1 69 1 77 0 0890 Press enter e to change the offset When the plus sign starts to blink press 4 or v to change Press enter e to accept The next number will blink Repeat the procedure until done Press enter e to chang
147. nsmitter These functions will be found under MAIN MENU option Configure and on the printout Checking measured set values Goto MAIN MENU option g e with sub menu fast Enter code 2300 Here you can check some very important values at De Press the button until the arrow points to _ E and then push data and the SETPOINT ANGLE and FEEDBACK values ap pear In this function the values can only be checked not adjusted FEEDBACK When the transmitter is connected to the hand held terminal feedback should vary from FEEDBACK IN AIR i e approximately 4 8 to 100 when the transmitter is braked by hand at the brake ring in the mea suring part Both the Feedback raw value and the Feedback values are shown The raw value varies between 0 4095 If the Sensor sens calib see section 6 4 on page 73 is not adjusted the Feedback value is not relevant SETPOINT Nominal value is 1600 When FEEDBACK IN AIR is set at 4 8 you get a SETPOINT reading that can vary from approximately 1440 to 1680 units Note See remarks section 5 6 2 on page 52 ANGLE When the feedback function is working correctly the ANGLE reading should be equal to the SETPOINT reading within a tolerance of 5 units If feedback is more than 100 the feedback system is overloaded and ANGLE will be greater than SETPOINT Feedback resolution Feedback raw signal The adjustment of the Feedback resolution setting
148. nu With Auto Preset and Check choice 4 20mA MODEMPRINTER PWR ON OFF EJECT MEMORY CARD PA pr ade Tx Spec 12 1234 i Feedback adjust FB adj fn air fagic Sensitivity setting Bree A ee e ran spec Comp Optional features SPC 1000 Communication Terminal You will be asked to enter your code as in Fig 14 Enter your code 2300 and press Enter 4 20mA MODEMPRINTER PWR ON OFF EJECT MEMORY CARD SPC 1000 Communication Terminal 4 See Fig 14 for the following menu with the Auto Preset and Check choices A N 4 20mA MODEMPRINTER PWR ON OFF A EJECT MEMORY CARD SPC 1000 Communication Terminal Adjustment can be done in one of two ways 28 MEK 2300 Operating instructions BTG 2002 01218 56 2e 4 1 Feedback adjustment in air 1 Automatic feedback adjustment Auto Breset or ato It can be checked at Check Set gt Preset point Angle Feedback Check 2 Pre set set point Preset hrecet by pressin Emm YP 8 The function operates so that the arrow is stepped to the button then press He c Note that the transmitter s basic setting will be changed The terminal and the transmitter will now exchange data with each other and adapt the adjustment to the correct value The Set point Angle and Feedback values will be di
149. o access this function an external temperature transmitter must be connected Here again it is necessary to perform a fine calibration first The func tion operates by applying a correction factor to the calculated cons value and with it the output signal is compensated for variations in tempera ERA A rad ture Set m Er 256 5 AUX 1023 To get the exact amount of compensation first make a fine calibration at a known temperature the working point the compensation is cal ibrated later at a different temperature at which the fine calibration is compared with a new measured value This gives the absolute consisten 36 MEK 2300 Operating instructions OI218 56 2e BTG 2002 5 1 General remarks on calibration and sampling Calc new Const funes Menu uation pu Cons and enter alue 3 Push Calc new gt to calculate the calibration Action THOR crake sample and collect sample 2 After lab avai ish Load lab al func are used to manually als or cal constants SPC 1000 Communication Terminal SPC 1000 Communication Terminal Confi Cali gure brate 20 m Damp offset Zoos ds 8 688 Tag no 282234 61 7 100 5 55 ET Cy error i e the compensation fa
150. oard can now be removed Space is tight so be careful Lift out the upper part first where the display connector 8 is located To mount the new main circuit board perform the steps above in reverse order AX218 56 2e MEK 2300 JCT 1100 Service instructions 5 29 BTG 2002 5 3 Service software 5 3 Service software Software can only be serviced by BTG s technicians Contact BTG re garding any suspected software problems MEK 2300 JCT 1100 Service instructions AX218 56 2e BTG 2002 5 4 Trouble shooting 5 4 Trouble shooting This section only covers troubleshooting with regards to possible faults that can occur in the junction box Please consult the transmitter part of this manual for transmitter related problems In the trouble shooting table below the probable causes are listed in a log ical order They should be checked in that order The fuses and the test points indicated in the troubleshooting table be low are shown in fig 17 on page 5 33 All numbers within in the troubleshooting table below refer to fig 15 on page 5 25 Symptom 1 The junction box does not power up 2 There is no informa tion on the display 3 Nothing happens when the push but tons are used 4 There is no output signal Probable cause 1 1 1 2 1 3 1 4 1 5 2 1 2 2 2 3 No power to the junction box Fuse on main circuit board blown Faulty or inco
151. of play between moment wheels twice a year in case of heavy pipe vibrations Long time maintenance includes e Replacement in transmission of pulley and belt recommended after 10 years of operation e Replacement of motor ball bearings recommended after 8 years of operation e Cleaning lubrication or replacement of rotating ball bearings of drive unit and measuring unit two for the drive shaft one for the moment shaft after approximately 10 years of operation e Replacement of mechanical seal after typically 5 years of operation depending on the operating condition e Replacement of rubber seals after typically 10 years of operation For further information see also the Service instruction for the respective transmitter type 16 7 Maintenance of the junction box For information regarding routine service for JCT 1100 see the Service instruction section of the JCT 1100 manual included in this manual 01218 56 2e MEK 2300 Operating instructions 101 BTG 2002 16 7 Maintenance of the junction box 102 MEK 2300 Operating instructions BTG 2002 01218 56 2e 1 1 System description 1 Product introduction 1 4 System description The JCT 1100 junction box is delivered as a complete unit from BTG and is always delivered together with a transmitter It has the following functions Local display and console for basic adjustments and calibration of the transmitter Connection point between t
152. oint Preset ee gt Preset It is possible to reach the control point quickly by directly adjusting the feedback controller s set point On the MEK 2300 this function is gener ally used for fine tuning of the feedback adjustment This is done by pressing setpoint Then enter the required set point value on the keyboard which now ap pears The previous value will be displayed as Old value A higher set point value means higher feedback value and vice versa Typical values may differ somewhat between individual transmitters Then press v If you do reset the Set point Angle and Feedback raw signal values will be displayed after a while Repeat the procedures if the feedback in air is not 4 846 3 Checking the Set point Angle Feedback Check This function is used to check the predetermined Set point Angle Feed back values This is an important fault tracing function No adjustment can be carried out at this stage Step the arrow to Breset and commu nicate with the transmitter press data 30 MEK 2300 Operating instructions 01218 56 2e BTG 2002 5 1 General remarks on calibration and sampling 5 Calibration 5 1 General remarks on calibration and sampling The transmitter can be calibrated for the specific application after it has been installed in the line and all connections have been made This section assumes you have completed section 4 on page 25 and stud ied the op
153. oint calibration See section 5 1 1 on page 32 item B Single point calibration is often used for quick start ups and refined lat er by a multi point calibration see section 5 3 3 on page 47 c To improve the calibration Make an updated calibration and an multi point calibration is obtained Criteria 1 Transmitter started up as per section 4 on page 25 2 Feedback in water should be set see section 5 2 2 on page 40 3 The transmitter s data must be entered in the hand held terminal as per section 4 on page 25 items 4 5 Procedure Read data 1 Setthe controller to MAN and adjust the dilution water valve until the consistency is judged to be normal i e as close to the intended SETPOINT as possible Let it stabilize 2 Select the relevant measuring range Range No 1 4 3 Start by setting the desired measuring span under main menu 4 mA 20 mA option 1 00 and 4 005 4 Press Ee followed by see also 5 8 T sample 44 MEK 2300 Operating instructions BTG 2002 OI218 56 2e 5 3 Calibration th WOITRTBUNE oooooooou On Included Off Excluded in cal All previous calibration values should be deleted during sin gle point calibration New 3 x Yes Press cal and accept deletion by pressing F Press Sale and take representative laborator
154. on The display should now light up If not check in the Trouble shooting section of the JCT 1100 manual that is included in this manual Press CARD 2500 M Then transfer the relevant transmitter s data to the hand held terminal by pressing des a Wait should now be displayed The transmitter data will not have been transferred if Transmission failed is displayed Check to ensure that the terminal s telephone jack is fully inserted and makes good contact The transmission could also fail if the signal circuit resis tance is less than 250 Q To continue press the display anywhere 5 Is the relevant transmitter s position number in the process Tag No entered This can be seen from the main menu s signal display win dow If not press See followed by ener and enter the rele vant number maximum of six characters can be entered e g 25 NT 1237 is entered as 25 Me 1237 Mona c Enter the TAG number to identify the relevant transmitter 01218 56 2e MEK 2300 Operating instructions 25 BTG 2002 3 2 Programming the transmitter with hand held terminal SPC 1000 general 6 Start the motor after switching on the electronics unit Confi Fi Aut 7 Press Es adjust Enter code 2 3 0 0 Press Eres until the arrow points to check Press da Check that the display Set point value correspon
155. or entering the numerical values is displayed when required See Fig 12 When numerical values are entered the New values are displayed while the previously entered values are dis played as Old values When the Enter Menu button is pressed the Old values are replaced by the New values and the program goes to the menu CE Clear Entry can be used to clear the input if incorrect data is entered 4 20mA MODEMPRINTER PWR ON OFF EJECT MEMORY CARD Communication Terminal SPC 1000 wf Alarm indication is actuated by decreasing the output signal to 4 0 mA the value goes below the measuring span set or to 21 mA the span is exceeded analogue output signal 4 20 mA Indication is also transmitted via the digital communication 22 MEK 2300 Operating instructions 01218 56 2e BTG 2002 3 2 Programming the transmitter with hand held terminal SPC 1000 general 6 Code protection can be activated to prevent unauthorized persons sending incorrect terminal programming to the transmitter The code can be selected individually but can be overridden by using a general code 7 Other code protections are applied to configure and factory set tings and to certain optional functions that can be ordered from BTG 8 Switch off the terminal for a few seconds if the program locks up can be caused by incorrect programming or communication prob lems You have to restart again after this but
156. ow be correct at that point but may deviate to a greater or lesser degree at other consistencies depending on the type of pulp and the sensor fitted c Since single point calibration is based on a single sample the output signal cannot be linearized and will therefore not be so exact Multi point calibration is preferred to get an exact calibration with a linearized output signal The measuring span is adjusted to the desired interval later via the 4 mA and 20 mA buttons in the main menu c Single point and Multi point calibration are combined in the program where they are simply called CALIBRATE but are treated separately in the instructions c When you select Calibrate in the main menu the display gives you calibration functions 4 20mA MODEMPRINTER MEMORY CARD PWR ON OFF EJECT Calc EL SS ET Push calculate the new n i brstion lt Special func ed to manuall lo d raw signals o S or cal constant e sl SPC 1000 Communication Terminal 01218 56 2e MEK 2300 Operating instructions BTG 2002 33 5 1 General remarks on calibration and sampling C Multi point calibration see section 5 3 3 on page 47 Multi point calibration is used to obtain high precision it takes full ad vantage of the potential of the software Multi point calibration is based on the proposition that the consistency may be changed signals for diff
157. p DANGER High voltage operation mo tor Connection must be carried out by authorized personnel 2 3 2 4 Installing mounting details Welding or bolting and subsequent inspection should take place in accor dance with current standards and regulations Use approved lifting gear during installation to prevent injury Anchor the parts well during installation A measuring vessel weighs ap proximately 40 kg 88 Ib Brace this vessel if it has a shut off valve weight with shut off valve 120 kg 265 Ib Installing the transmitter e Use approved lifting gear during installation Ensure that the transmit ter is anchored solidly during installation A transmitter weighs ap proximately 40 kg 88 Ib Construct a platform if the transmitter is located high up This plat form will make it easier to fit and start up the transmitter and carry out service in the future The rubber quality of the transmitter flange seal O ring should be se lected to suit the current medium The O ring supplied is suited to the current criteria Fitthe transmitter using the 15 screws nuts and washers supplied Lu bricate and tighten the screws alternately using a torque wrench Tightening torque for 8 mm screws nuts 24 Nm 2 4 kpm 17 7 Ibf ft Tightening torque for 10 mm screws nuts 47 Nm 4 7 kpm 34 7 Ibf ft Original screws are secured against vibration by means of nylon locking devices e When the transmitter has b
158. p and nut t m m ptt et a PN 10 5 0 D mm Outer diameter of main pipe 4 5 A Stainless steel to SS2343 4 0 lt AISI 316 254 SMO 3 5 B Hastelloy C 276 3 0 300 400 500 600 700 800 QD mm 4 2 2 3 Example using Fig 14 What is the min material thickness required for a main pipe size 400 of ISO standard when dimensioned for PN 10 Material Stainless steel to 582343 standard D 406 4 mm according to standard Select line A SS2343 According to the diagram tmin 3 75 mm Select standard pipe 406 4 x 4 5 mm Due to the standard thickness tol erance of 10 it will not be sufficient with t 4 0 mm c Use valid standard for exact calculation 26 MEK 2300 Installation instructions 11218 56 2e BTG 2002 4 2 Low pressure pipe installations PN10 Use a valid calculation standard for an exact calculation The devia tion from Swedish Standard is as a rule of minor importance However when tmin in the diagram approaches the thickness of the selected pipe we recommend an exact calculation Please also note that the manufactur ing tolerance of the selected pipe must be included in your calculation If the calculation the diagram shows that the existing main pipe is of insufficient thickness and therefore needs to be strengthened 1 e have a thicker wall you must observe that the strengthened pipe must extend to a minimum of 300 mm 12 in on each side of the weld in stud me
159. pensating equipment see section 6 2 on page 68 Criteria a Transmitter started up as per section 4 on page 25 Feedback in wa ter should be set see section 5 2 2 on page 40 for a multi point cal ibration b The transmitter s data must be entered in the hand held terminal as per section 4 on page 25 items 4 5 data Procedure Go to MAIN MENU Compare with section 5 3 2 on page 44 which describes similar steps in somewhat more detail Edit n button range 1 4 1 Select actual range with 2 Start by setting the desired measuring span under MAIN MENU 1 00 option and 40 See also section 5 8 on page 66 3 Set the controller to MAN Close the dilution water so that the con sistency rises to the maximum permissible limit Let it stabilize If feedback now approaches or exceeds 100 the sensing element should be replaced by a smaller one If feedback is very low close to the value for water the sensing element should be replaced by a larger one Cali 4 Press Eze 01218 56 2e MEK 2300 Operating instructions 47 BTG 2002 5 3 Calibration 130n 7 5042 8210n 83 06On 830 14 8 083 3730n 3 6Bio f 952 4043 3240n On Included Off Excluded in cal 10 Take Select sample then cal calib ration Yes Press for a new calibration or for an UPD
160. power supply 5 2 4 Replacing the main circuit board If the main circuit board is faulty it needs to be replaced This instruction is valid for junction boxes with built in power supply or with external 24 V DC power supply Tools required Screwdriver medium size Star screwdriver medium size c Break and secure the AC power supply voltage to the junction box before the front panel is removed it is not sufficient to turn it off with the power supply switch in the terminal box All numbers within below refer to fig 15 on page 5 25 1 Check that the 24 V DC LED 7 and the display are off 2 Unscrew the terminal box cover 1 3 Detach all screw clamp connectors with cables connected to them Note that the terminal screws do not need to be fully removed the contact can be pulled out of the screw clamp connector on the main circuit board 4 Unscrew the front panel 2 and carefully lift the front panel plate aside 5 Detach the display connector 8 by pushing the two levers aside and pulling the connector straight out from the main circuit board 6 Detach the SPC connector 9 by pulling it straight out from the main circuit board It might be necessary to loosen the locking flap using a flat screw driver 7 Unscrew the front panel grounding strap 12 from the main circuit board 8 Unscrew the fifteen screws 10 that attach the main circuit board to the box 9 The main circuit b
161. quired The memory card must be handled with care and protected from mois ture extreme temperatures and direct sunlight Do not bend or twist the card Handle the memory card with care Store it in its plastic wallet if it is not fitted in the terminal 12 MEK 2300 Operating instructions 01218 56 2e BTG 2002 2 6 Setting Display 2 6 2 7 Fig 6 Handling the SPC 1000 Setting Display All normal settings are made via the hand held terminal s touch screen All displays are provided on the touch screen The touch screen s LCD read angle can be adjusted when necessary via a covered hole at the back of the terminal marked DISPLAY CON TRAST The read angle is set by the factory for normal room tempera ture but may need to be changed particularly at very high ambient temperatures c The read angle need not be adjusted for normal use Operating and cleaning the hand held terminal 2 7 1 Operating As mentioned earlier the terminal should be handled with care and not subjected to mechanical damage immersed in or sprayed with water When communicating with the sensor the hand held terminal is normal ly placed in the special terminal holder installed on a wall close to the junction box c To prevent the terminal being sprayed with water when in the wall holder a protective cover should be installed For more information see the Installation instruction section of the JCT 1100 manual inclu
162. r chemical pulp 24 20 1 0 3 0 unbleached TMP Thermo mechanical pulp 24 20 2 1 2 9 GW Ground wood 24 20 2 6 2 8 ONP Old newspaper recycled 24 20 0 8 2 0 Old corrugated container OCC recycled 24 20 1 0 1 6 For a mixed pulp or a pulp not included in the table calibration constants can be approximated according to the pulp type with the closest shear force aspects The transmitter has to be adjusted for 100 feedback at 100 kpmm be fore this calibration can be made To enter the calibration constants follow the instructions in section 5 5 on page 50 42 MEK 2300 Operating instructions BTG 2002 01218 56 2e 5 3 Calibration Fig 17 Predefined calibration curves MEK 2300 Predefined calibration curves Typical results from actual installations e SWU x E SWB 2 e TM P HWU 9 e GW LL xe HWB ONP occ Consistency 01218 56 2e MEK 2300 Operating instructions BTG 2002 43 5 3 Calibration i Cali brate rati cu Offset 0 00 llect sample pes als a P to calculate the new calibration lt Special func gt are used to manually load raw signals or cal constants 5 3 2 Single p
163. r experienced users 01218 56 2e MEK 2300 Operating instructions 23 BTG 2002 3 2 Programming the transmitter with hand held terminal SPC 1000 general 24 MEK 2300 Operating instructions 01218 56 2e BTG 2002 3 2 Programming the transmitter with hand held terminal SPC 1000 general 4 Starting the transmitter The motor must not be allowed to run for more than 4 5 minutes without flushing water to the mechanical seal SECO The transmitter data must always first be transferred to the terminal for the setting to work Familiarize yourself with the operation of the hand held terminal and transmitter see section 2 on page 5 and section 3 on page 15 Before being started the transmitter must be installed in the pulp line and wired electrically according to the Installation instructions 11218 56 Before admitting water or pulp to the line check the following points where applicable to the model installed 1 Is the inspection cover properly tightened 2 Has flushing water been supplied to the mechanical seal and is the water running off to drain as it should where applicable 3 Switch on the motor briefly Is it rotating in the direction shown by the arrow Reverse rotation can cause the sensor to unscrew from the shaft Cer tain types only 4 Switch on the power supply to the transmitter s electronics Connect the hand held terminal to the junction box Switch
164. r removed See section 5 2 3 Replacing the front panel on page 5 26 Fig 16 DC DC Converter Pin layout for connecting No isolation No isolation or strapping Isolation amplifier amplifier amplifier connected connected Position of isolation amplifiers under connected No output strapped pins the front panel Output signal signal Output signal tor i or i i e i oen i 09800 3 lel i fel i n OUT a our2 MA2 oura MA3 i i 0 e i i i i i TET EN ii io i 30 ip Je 5 26 MEK 2300 JCT 1100 Service instructions AX218 56 2e BTG 2002 5 2 Service hardware DANGER High voltage within the junction box Connections may only be carried out by qualified personnel applies to version with 100 240 V AC power supply 5 2 2 Replacing the power supply unit If the power supply is faulty it needs to be replaced If an external 24 V DC power supply is used there is a 24 V DC power supply board that can be changed in the same way as described below Tools required Star screwdriver medium size c Break and secure the AC power supply voltage to the junction box before the front panel is removed it is not sufficient to turn it off with the power supply switch in the terminal box All numbers within below refer to fie 15 on page 5 25 Check that the 24 V DC LED 7 and the display are off 2
165. re far from each other we recommend installation of a separate junction box where the hand held terminal could be connected to be able to perform the cal ibration procedure in a convenient and safe way c To ensure acceptable precision in taking laboratory samples we recommend use of the BTG sampling valves 2 Take at least two and preferably three laboratory samples at each consistency level Calculate the mean value reject samples that de viate widely from the mean Take an adequate volume for sampling at least 500 ml 1 2 US quart for a reliable sample 3 Make sure that samples for calibration and subsequent checking are always taken in the same manner regardless of who does the sam pling Similarly the laboratory procedure must always be exactly the same 38 MEK 2300 Operating instructions 01218 56 2e BTG 2002 5 2 Criteria for calibration c The design of and compliance with sampling routines are of crucial importance in assuring uniform treatment of samples and thus the calibration and future precision of measurement of the transmitter c During calibration the pulp flow past the Transmitter must be representative for the position in which it is installed c To simplify and improve the regularly follow up routines the BTG Smart lab sampler SLS 1000 is an useful aid 5 2 Criteria for calibration The transmitter rotates and has been started up as per section 4 on page 25 2 The han
166. rminal socket marked Printer The hand held terminal is connected according to RS 232 standard with either a 25 pin Fig 18 pos 2 or a 9 pin Fig 5 pos 1 serial connector depending on the PC you have A suitable connecting cable is available from BTG and fits both 9 and 25 pin connector See parts list Accessories for hand held terminal If you use Windows 3 1 or later versions you can use the SPC 1000 Documentation program This program is available at disk Documenta tion program for Windows from BTG See section 5 6 4 1 on page 59 You will receive all data for the range you send to the PC so if you want all four ranges you just repeat the procedure for each range If you have several BTG smart transmitters this is a very useful way of storing all transmitter data within the same file Pressing the print button will transfer the data to your text file for one range at the time Fig 18 SPC 1000 documentation 1 2 program for Windows Version nS c The PC can only be used for storing the transmitter calibrations Ga They cannot be transferred bach from the PC to the SPC 1000 transmitter 10 MEK 2300 Operating instructions 01218 56 2e BTG 2002 2 5 Memory cards Sensor card SPC 100 English Ver C 14457675 2 5 Memory cards 2 5 1 Function of the memory cards The hand held terminal is fitted with a PCMCIA slot for a memory card This card is the size of a credit car
167. rrectly connected cabling to the power supply unit Faulty 24 V DC supply Faulty DC DC converters on main circuit board No power to the junction box Faulty or incorrectly connected display wiring Display is faulty Faulty or incorrectly connected display wiring One or more push buttons are faulty No power to the junction box Transmitter not in operation Action Check the external power supply voltage Check fuses FS1 and FS2 for AC power supply FS3 for 24 V DC to transmitter and FS4 for DC DC converters Check the AC power 4 and 24 V DC 3 wiring Check TP1 If out of limits replace the power supply unit See section 5 2 2 Check TP2 and TP3 If out of limits replace the main circuit board See section 5 2 4 See point 1 above Check the display wiring 8 and the groundling strap 12 Replace the front panel See section 5 2 3 Check the display wiring 8 and the grounding strap 12 Replace the front panel See section 5 2 3 See point 1 above Check the display for output signal AX218 56 2e MEK 2300 JCT 1100 Service instructions BTG 2002 5 4 Trouble shooting Symptom 5 The SPC does not work 6 The analog output signal from the junc tion box is lower than what the display dis play shows Probable cause 4 3 Improperly mounted isolation amplifier 4 4 Open loop for 4 20 mA output 4 5 Incorrect transmitter
168. rsion 1 1 A0012336 Circuit board without power supply unit 2 19 15020696 Screw RXK H 2 0x9 5 3 1 A0006601 Display circuit board 4 1 A0007039 Wiring for display panel 5 1 27014281 Shield gasket 6 1 A0006635 Terminal connection SPC 7 1 A0012286 Reinforcement plate SS al 4212 06 8 1 A0014274 Isolation amplifier DC DC Hart 9 P 4 46022638 Fuse TR5 2AT 250V 10 1 A0014258 24V adapter circuit board 11 1 A0012203 Front panel complete 12 1 A0012229 Connection cable Transmitter 13 1 A0012401 Front panel sticker MEK 2300 14 1 A0015958 Sticker inside terminal box Connection MEK 2300 6 38 MEK 2300 JCT 1100 Parts list AX218 56 2e BTG 2002
169. ructions 01218 56 2e BTG 2002 1 Routine servicing general remarks Check the following items see Service Manual for detailed instructions Once a week Is the mechanical seal tight Is the flushing water system working Every six months Is the gear belt in good condition Once a year Total torque wheel clearance For information regarding routine service for JCT 1100 see the Service instruction section of the JCT 1100 manual included in this manual Also check as necessary e Rubber seals in contact with media containing high concentrations of chemicals black liquor chlorine etc e Calibration of transmitter against laboratory samples e Tuning of controller control loop should respond quickly but should not oscillate spontaneously Check total free play of torque wheels see above Stop the transmitter Turn it until one of the end position stops is visible Turn the brake ring to each end stop and check that the torque wheel springs back to a central position c This check may be difficult to make if pulp is flowing past the sensor Measure the total play between end position stops with a feeler gauge nominal value is 0 30 mm 0 012 If the play is more than 0 50 mm 0 020 it should be adjusted See service manual section Checking torque wheel positions 01218 56 2e MEK 2300 Operating instructions 3 BTG 2002 MEK 2300 Operating instructions 01218 56 2e BTG 2002 2 1 G
170. s usually installed in a vertical pipe and located down stream of a pump that mixes dilution water into the pulp It should always be installed as close as possible to the point where the dilution water is injected to ensure minimum time lag See Fig 5 To ensure minimum time lag locate the transmitter close to the dilution point Low pressure pipe installations PN10 Where pressure is lt 10 bar at 20 C 150 psi at 68 F defined as PN10 and pipe diameter is 250 mm 10 in the transmitter should be connect ed to the pulp line via a measuring vessel See Fig 9 and see section 8 2 c The measuring vessel is delivered as standard with weld ends for weld connection to the main pipe On request it can be delivered with flanges Where pressure is 10 bar at 20 C 150 psi at 68 F and pipe diameter is 2 300 mm 12 in the transmitter should be connected to the pulp line via a weld in stud See Fig 15 and section 8 2 A slide gate shut off valve may also be fitted in a low pressure installa 11218 56 2e MEK 2300 Installation instructions 19 BTG 2002 4 2 Low pressure pipe installations PN10 tion of this type The valve makes it possible to remove the transmitter while the pipe is filled with pulp Note that shut off valves should only be used in low pressure installa tions and with non hazardous media as a complete seal over the valve cannot be guaranteed Shut off valves should only be used wit
171. section 3 3 2 AUX in 0 4 20 mA CONN3 USER Range select input B See section 3 4 2 Range select input A See section 3 4 2 7 Cable shield not connected in junction box See section 3 3 2 e Cable shield connected to junction box PE via cable gland See section 3 3 2 o o Grey CONN2 m 29 Yellow Black SENSOR re TET Red Transmitter cable 2 ES Brown transmitter supply pide s ja Pink d O White transmitter supply CONN1 A Protective earth Protective earth SUPPLY Hng ais Do not connect 100 240 a Neutral tee V BE V AC to terminal Power Supply ked 24 V DC AC Version DC Version marke or vice versa AX218 56 2e MEK 2300 JCT 1100 Installation instructions 3 15 BTG 2002 3 4 Wiring diagram 3 4 1 Load resistor for HART communication To be able to communicate using the HART protocol a 250 ohm mini mum circuit resistance is required BTG s hand held terminal and the display in the junction box use the HART protocol for communication The output circuit has to be a closed loop and have at least 250 ohms resistance If the output circuit DCS etc has a lower resistance an extra resistor has to be connected in series with the output signal cable Always connect the extra resistor with the plus mA terminal Fig 12 Load resistor for HART communication EE es Remove the pre mounted resistor be fore the output signal cable is connect ed 3 4 2 Range select input Transmitter calibration ran
172. smitter part of this manual for calibration instructions MEK 2300 JCT 1100 Service instructions BTG 2002 AX218 56 2e 5 4 Trouble shooting Fig 17 Fuses and test points TP on the main circuit board Pos TP 1 2 3 4 5 TP 6 TP1 7 TP2 8 TP3 9 TP5 m o 00000gg453 9 1010 ermmm b ONOON TENT 1 o F82 2ATS E IN S T o R 2 3 Min Max Unit Comment 2 Fuse for AC power supply 250V 2AT 2 A Fuse for AC power supply 250V 2AT 2 A Fuse for 24 V DC power supply 250V 2AT 2 A Fuse for DC DC converters 250V 2AT Ground reference for all voltages test poin
173. splayed after about half a minute Set point is the set point value of the feedback system con troller Angle its actual value and Feedback its output signal AUX is an input for special functions The value should be 0 if these functions are not used If the adjustment is correct the Set point and Angle values should agree A typical nominal Set point value is 1600 and Angle can be permitted to vary by 10 units max 20 from the Set point value The Set point value can be adjusted between approximately 1440 1680 units The nominal value depends on the torque wheel s toothed wheel and optical sensors adjustment Refer to section 3 2 of the service manu al c The feedback value when rotating in air should be 4 8 The A change to the feedback Feedback signal in this part of the menu is first shown as a raw adjustment changes the i signal and the actual one 6 2 Note that to obtain the actual one setting of the transmitter Sensor sensitivity adjustment must be performed first see This must be done only section 6 4 on page 73 when the transmitter rotates inalt MOLI pulp If the feedback value at rotation in air is outside its limit fine tuning can gt Preset be performed at EP c Automatic feedback adjustment can be regarded as a rough adjustment and the setting often needs fine tuning 01218 56 2e MEK 2300 Operating instructions 29 BTG 2002 4 1 Feedback adjustment in air 2 Pre set set p
174. ssure PN The diagram in fig 40 shows max operating pressure for different pres sure classes at different operating temperatures Stainless steel 2343 according to SS 142343 SS 316 Example What is max operating pressure at 100 C operating tempera ture and pressure class PN 10 Answer 8 ato 8 bar Fig 40 Max operating pressure at different operating temperatures Max operating pressure ato Operating temperature C 70 80 90 100 120 140 160 180 200 250 5 5 5 45 45 45 45 45 85 85 85 8 75 75 75 14 12 5 12 22 19 ato atmosphere atm overpressure 68 MEK 2300 Installation instructions 11218 56 2e BTG 2002 8 3 Measuring vessel with weld ends Dimensions of the vessel s weld ends 8 3 Measuring vessel with weld ends Dimensions of the vessel s weld ends 8 3 1 Pipes according to ISO standard dimensions FIRE connec Pipe dimension Pipe dimension Low pressure High pressure PN 10 150 psi 25 bar 360 psi mm inch mm inch mm inch 100 4 114 3x3 4 50x0 12 125 5 139 7x3 5 50x0 12 150 6 168 3x3 6 63x0 12 168 3x6 3 6 63x0 25 200 8 219 1x3 8 63x0 12 219 1x8 8 63x0 31 250 10 273x3 10 75x0 12 273x10 10 75x0 39 The pipe dimensions refer to the pipe weld end Outer diameter x pipe thickness OD x t 8 3 2 Pipe connec tion Pipes according
175. st gt All four measuring ranges will be stored so each one must be clearly identified in the identification list 6 Switch off the terminal and replace the back up card with the sensor card c Store the back up card in a safe place protected from moisture The card is an object of considerable value c The back up card can be protected against accidental or unwanted data input by using its write protect Set the write protect button to the activated position to prevent input When the write protect is activated the text Card write protected or Low card battery appears on the display B Retrieving transmitter data stored on the back up card l da Repeat Items 1 4 in A described earlier Press d amp a to access the relevant transmitter setting from the back up card and transfer this to the terminal s memory The rele vant Tag number is shown in the identification list as per Item 5 above Press Y Switch off the hand held terminal and replace the back up card with the sensor card Switch on the hand held terminal Press GB EC c Do not Read data If so the values obtained from the backup card will be erased 5 Press in the main menu 6 Press data and then range for the relevant measuring range to transfer the data from the backup memory to the editing memory cep sh asp dit rate end tn in the terminal
176. standard trimming pro cedure l Oo a O t R 10 Set the controller to MAN and adjust the set point value which is normally set at 50 Example Consistency measuring span 2 4 normal consistency 3 present consistency signal 42 which means that the present consistency 1s 2 84 To obtain a set point of 3 the set point value is set at 50 see also step 9 below Set the controller to AUTO Set I time to infinity Gradually reduce the P band until the controller begins to oscillate spontaneously Increase the P band to twice the width Allow operation of the circuit to stabilize Keep the P band as it is or increase it slightly Reduce the I time slowly until slow sine curve spontaneous oscilla tion is detected Increase the I time to give an adequate margin e g twice the sponta neous oscillation value Study the regulating process in disturbed conditions If changes in operating conditions cause spontaneous oscillation adjustment is necessary If flow conditions change e g if the flow velocity is re duced the width of the P band must be increased Do not make the P band setting too wide as this will adversely affect the response time of the controller making it sluggish If later checks on transmitter readings compared to laboratory sam ple values reveal a confirmed deviation the lead value of the control ler can be temporarily reset With a MEK 2300 transmitter where t
177. system is turned OFF before attaching the sys tem cable to the transmitter Note Tighten the system cable contact hard 4 Check all wiring 5 Switch on the main power supply 6 Connect the hand held terminal to the junction box Switch it on and check that the display lights up 7 Switch on the electric motor briefly and check the rotational di rection c The motor should not be allowed to run for more than 5 10 minutes without a supply of flushing water Proceed to the MEK 2300 Operation instructions 11218 56 2e MEK 2300 Installation instructions 55 BTG 2002 4 9 Jumper on processor card 56 MEK 2300 Installation instructions BTG 2002 11218 56 2e 7 1 Transmitter type sign 7 Type sign explanation Always refer to the type sign when ordering spare parts TT 7 1 Transmitter type sign DIN 4436 AISI316 PN10 c The third letter at section designation below refers to the no s in the figure l e 7 1 3 Where 3 describes the mechanical seal code 7 1 4 Manufacturer 7 1 2 Transmitter version MEK 2300 2308 2310 2311 2312 2314 2315 and 2320 See data sheets 7 1 3 Mechanical seal code SSW SSO HSW ESW ESO FSW First letter Mechanical type S Crane Sealol 680 or 670 H HF4 668 E Eagle F Flexibox Second letter Material in seal faces S silicon carbide Third letter Water flushing of seal W with water flushing O open version without
178. t Temp Enter the maximum limit of the temperature span at fem e g 20 C F Calibrate the temperature transmitter against the consistency transmitter Connect a simulator capable of supplying the ap propriate mA signal to the AUX in terminals in the JCT 1100 junction box See the wiring diagram in the Installation instructions section of the JCT 1100 manual included in this manual G First set the minimum signal for the measuring span e g 4 mA at 20 C and press S H The raw signal AUX input should now be displayed When the signal is stable press Rawsign I Set the maximum signal for the measuring span e g 20 mA at 60 C and when the raw signal is stable press faig 01218 56 2e MEK 2300 Operating instructions 69 BTG 2002 6 2 Compensation for varying temperature 2 Connect the temperature transmitter to the AUX in terminals in the JCT 1100 junction box See the wiring diagram in the Installation instructions section of the JCT 1100 manual included in this manu al 3 Perform a normal multi point calibration according to section 5 3 3 on page 47 Measure and record the typical temperature during cal ibration If the temperature transmitter is connected and calibrated as described above the temperature can be read in main menu at out put signal 4 Returnto F8 according to item 1 A C 5 Enter the typical temperature measured during th
179. t pressure loss during the cleaning period 11218 56 2e MEK 2300 Installation instructions 49 BTG 2002 4 8 Connection of electric motor DANGER High voltage operation motor Connection must be carried out by authorized personnel Where the transmitter s mechanical seal is not water flushed the motor must be interlocked with the pump motor 4 8 Connection of electric motor 4 8 1 General The motor can either be 3 phase or single phase Instructions for the connection of the transmitter s electric motor are to be found in the cover of the junction box See Fig 34 Fig 35 The motor should preferably be connected using a plug to ensure easy service acces sibility 4 8 2 Connecting a 3 phase motor a The pulp line must be empty while this work is being carried out b Check that the motor voltage connected at delivery is correct If it is not adjust the jumpers in the junction box for the correct voltage according to the data on motor type designation plate See Fig 34 Fig 35 c Always check that the motor voltage connected at delivery is correct If not switch over to the correct voltage c The direction of rotation is indicated by an arrow on the motor housing As soon as the motor has been connected check that the direction of rotation is correct by starting and stopping the motor momentarily See Fig 35 d Set the overload protection to the same value as the rated current for the motor
180. tant Press xs see section 5 7 on page 65 End with Send data MEK 2300 Operating instructions 01218 56 2e BTG 2002 5 5 Calibration with given constants 4 Trim the controller See section 13 on page 93 Document the calibration either manually or by making a printout refer to section 5 6 2 on page 52 Refer also to section 5 6 3 on page 57 or section 5 6 4 on page 59 c Calibration is now complete but can generally be improved by entering additional calibration points i e by making a multi point calibration according to section 5 4 on page 50 01218 56 2e MEK 2300 Operating instructions 51 BTG 2002 5 6 Evaluation and documentation of calibration 5 6 Evaluation and documentation of calibration When you have made a calibration it should be evaluated and documented Programmed data essential to subsequent fault tracing or replacement of a card are then available on file 5 6 1 Print out documentation A standard printer is an invaluable aid that simplifies evaluation and doc umentation of transmitter settings The printer must be EPSON compatible with an RS 232 serial input The recommended models are EPSON P 40S SEIKO DPU 411 or SEIKO DPU 414 which can be ordered locally or from BTG A special con necting cable supplied by BTG is needed Set the printer to a baud rate of 2400 Documentation can also be done manually Make a written record of all the data listed on the printout show
181. tened to the transmitter at delivery 4 7 2 Low pressure flushing Fig 32 Code in type designation SSW ESW HSW or FSW c Only model No MEK 2320 requires high pressure water The other models use low pressure water or no flushing water at all The rate of flow is controlled by a built in flow controller External purge meters should therefore not be installed as they have a definite tendency to clog Rate of flow is 0 5 l min 0 13 US gal min to 0 95 l min 0 25 US gal min depending on transmitter model Pressure can vary from nearly zero to approximately 10 bar 150 psi If pressure is higher than this the flow rate will increase but this is not a critical factor A flow indicator need not necessarily be installed but arrangements should be made for observing the water leaving the floor outlet Connect the supply of incoming flushing water directly to the water inlet pipe s G 1 4 in 1 4 in BSP male connection at the built in flow control ler Pipes should preferably be at least 8 mm 0 31 in in external diame ter with a wall thickness of 1 mm 0 04 in Install a shut off valve close to the transmitter Install the water overflow supplied on the outgoing water pipe Overflow and outlet pipe are in a separate plastic bag in the packing case Connect a 3 8 in reinforced plastic tube to the outlet draw it to the floor outlet and fasten it just above the floor outlet so that the flow can be observed The tube shoul
182. the correction factor The correction factor is determined by the amount of reduction made 11218 56 2e MEK 2300 Installation instructions 65 BTG 2002 8 1 Dimensioning of the dilution water valve for consistency control Fig 38 Correction factor for reduced bores Correction factor f HE QT 5 D d valve bore d D pipe line diameter a opening gt Use the curve for 85 valve opening when calculating the correction factor Example Calculated K value 75 4 Pipe line dimension 60 mm D Selected valve e g BTG VBG 40 size 50 d which has a K value of 155 at 85 opening Check that selected valve K is sufficient See Fig 40 1 z 1 2 which gives a correction factor of 0 78 The valve K will be 0 78 x 155 116 25 and the valve size 50 is sufficient Example to Fig 39 Q 6000 m3 24 h Pipe diameter 300 mm What is the velocity in the pipe line Q _ 6000 4 17 m min N A X e In the nomogram Fig 39 we can see that the flow velocity is 0 98 m s 3 2 fps 66 MEK 2300 Installation instructions 11218 56 2e BTG 2002 8 1 Dimensioning of the dilution water valve for consistency control Fig 39 Nomogram for flow Flow m min velocities in pipes Flow m min A 4 AU NAANA AN ATANN CART AA NNNNNSS AS AN NNN IRA o Velocity m s a X OLOT CCS NAN ECAA NN ENT SSS NN NN AR AY UA AU
183. the setting you should try to make the time constant as short as possible in order to avoid the risk of filtering out actual changes in consistency By doing so you also take maximum advantage of the transmitter s precision B Measuring span limits see section 5 8 on page 66 This setting can be accessed directly in the main menu Measuring Span can be set as desired but is limited by the measuring span of the sensing element If the calibration is of single point type or if the output signal is not linearized K2 0 the span setting should be as small as possible since in these cases the calibration is correct at one point only but may be more or less off at other points 01218 56 2e MEK 2300 Operating instructions 35 BTG 2002 5 1 General remarks on calibration and sampling C Offset adjustment see section 6 1 on page 67 This function is accessed in the main menu Offset If you have made a fine calibration and subsequent checking reveals that it is not correct you can use the Offset function Note that the setting should not be altered until the erroneous reading has been confirmed by sev eral laboratory samples c offset 0 00 The function operates by displacing the whole calibration curve and lo ne cating it with a laboratory sample You store the cons value in the memo ic 1 Push Take 2 After lab evaluation push Load lab
184. tion on J3 activated Optional 1 e o IR HART communication on 3 AnaOut1 4 20 mA Standard 52 MER 2300 Installation instructions BTG 2002 11218 56 2e 4 9 Jumper on processor card 5 Installing the junction box type JCT 1100 For information regarding Installation instructions for the JCT 1100 junction box see the Installation instruction section of the JCT 1100 manual included in this manual 11218 56 2e MEK 2300 Installation instructions BTG 2002 53 4 9 Jumper on processor card 54 MEK 2300 Installation instructions BTG 2002 11218 56 2e 4 9 Jumper on processor card 6 Quick start checklist When you are confident your MEK 2300 has been correctly installed and you are ready to power up the system for calibration and or testing you should run through this brief check list before powering up Using this list can help ensure trouble free initialization of your system To ensure that the measuring vessel weld in bulb and the transmitter is correctly installed and free from leakage it is recommended to pressure test the system with water The pressure should be kept higher than the rating according to applicable regulations 1 Check that the inspection cover if any is properly tightened 2 Where applicable check that there is a supply of flushing water to the mechanical seal and that the water is draining as it should 3 Ensure that the
185. ts 23 5 24 5 V Output voltage from 24 V DC power supply 11 9 12 9 V SPC 1000 supply voltage from DC DC converter 4 95 5 05 V Regulated system supply voltage from DC DC converter 1 20 1 25 V Reference voltage for HART modem Measure all TP s between TPS GND and the TP at hand using a high impedance digital voltmeter AX218 56 2e MEK 2300 JCT 1100 Service instructions 5 33 BTG 2002 5 4 Trouble shooting MEK 2300 JCT 1100 Service instructions BTG 2002 AX218 56 2e 6 1 JCT 1100 with power supply unit 6 Parts list 6 1 JCT 1100 with power supply unit C 13 en crt Qty Part No d parts A0012070 1 1 A0012146 2 19 15020696 3 1 A0006601 4 1 A0007039 5 1 27014281 6 1 A0006635 7 1 A0012138 8 1 46026266 9 1 A0014274 10 1 A0012229 11 t 4 46022638 12 3 46024063 13 1 46027330 14 1 A0012203 15 1 A0012401 16 1 A0015958 121110 9 Spare Part Junction box complete Main circuit board with power supply unit Screw RXK H 2 0x9 5 Display circuit board Wiring for display panel Shield gasket Terminal connection Reinforcement plate Cable fitting Isolation amplifier System cable Fuse Cable fitting Power supply unit Front panel complete Front panel sticker Sticker inside terminal box Description 100 240 V AC version SPC SS al 4212 06 Pg7 DC DC Hart Transmitter TR5 2AT 250V Pg 11 Pulse
186. ture according to the traditional con cept is very limited c These instructions apply only to software version 1 X 01218 56 2e MEK 2300 Operating instructions 21 BTG 2002 3 2 Programming the transmitter with hand held terminal SPC 1000 general The program is structured in the following manner l Fig 12 Numerical keyboard of SPC 1000 The common basic functions for the opening menu Fig 10 for all types of transmitters are programmed into the terminals internal memory and is shown when using the sensor card or when the back up card is inserted Refer to item A Button functions for the open ing and main menus Buttons SENSOR BACKUP MBT MEK CARD CARD 2300 2300 and other future transmitter verl 2 verl 2 models These basic functions are specified only in English since they are stored in the terminals memory The main menu Fig 11 is exactly the same for all types of trans mitters that are programmed into the relevant sensor card It com prises 14 buttons with direct selection of the relevant sub menu refer to item A Button functions for the opening and main menus buttons There is also a signal display The sub menus are also much the same for all types of transmitters except for the Configure Misc and Note functions These are adapt ed to the individual type of transmitter A Keyboard f
187. ures and horizontal mounting left hand design standard lt a 475 675 18 7 Fig 11 Measuring vessel with weld ends for low pressures and horizontal mounting right hand design on request 26 6 Flow direction L 22 MEK 2300 Installation instructions BTG 2002 11218 56 2e 4 2 Low pressure pipe installations PN10 Fig 12 Measuring vessel with stud for sampling valve available to order 1 Vertical mounting 2 Horizontal mounting left hand design A For more information see dravving 5329015 included in reference A c State in order to BTG if sampling valve type FVS 1100 or MPS 1000 is going to be installed 3 Weld in stud for sampling valve type FVS 1100 or alternatively MPS 1000 11218 56 2e MEK 2300 Installation instructions BTG 2002 23 4 2 Low pressure pipe installations PN10 Fig 13 Flanged measuring vessel available to order c See also Fig 9 for other dimensions 24 MEK 2300 Installation instructions 11218 56 2e BTG 2002 4 2 Low pressure pipe installations PN10 Warning Assure yourself that the pipe is empty before opening it up Measuring chamber length M is determined by BTG Correct length is vital Proper M dimension is shown on the label attached on the weld in stud No part of the weld in stud
188. will influence the above settings 01218 56 2e MEK 2300 Operating instructions 85 BTG 2002 10 2 Service functions and signal calibration 10 2 Feedba The Feedback resolution setting is also observed at adjust Select RENE SU calib rewsig This value is named Feedback raw signal The original setting can be read in the attached test protocol Refer to section 6 4 on page 73 for adjustments Service functions and signal calibration A Factory settings There is a Factory settings sub menu under the heading Misc This is where a certain signal calibration can be done Since the calibration nor mally requires special equipment this work can be done only at BTG The function is protected by a code and is therefore not accessible An instruction is available from BTG on request at emergency cases 86 MEK 2300 Operating instructions BTG 2002 01218 56 2e 10 2 Service functions and signal calibration 11 Altering sensor transmitter data Change the transmitter specification data when rebuilding the transmitter to another type or changing sensing element or propeller See fig 18 fig 24 section 5 2 1 on page 39 and section 5 2 2 on page 40 for detailed instructions The transmitter is delivered from the factory with ready loaded program data according to the manufacturing order The data can be seen on the printout fig 18 orat S
189. ws the replacement to be made at a convenient time Tools required Star screwdriver medium size c Break and secure the AC power supply voltage to the junction box before the front panel is removed it is not sufficient to turn it off with the power supply switch in the terminal box All numbers within below refer to fie 15 on page 5 25 1 Check that the 24 V DC LED 7 and the display are off 2 Unscrew the terminal box cover 1 3 Unscrew the front panel 2 and carefully lift the front panel plate aside 4 Detach the display connector 8 by pushing the two levers aside and pulling the connector straight out from the main circuit board 5 Detach the SPC connector 9 by pulling it straight out from the main circuit board It might be necessary to loosen the locking flap using a flat screw driver 6 Unscrew the front panel grounding strap 12 from the main circuit board 7 Move the display wiring 8 from the faulty display panel to the new display panel To mount the new front panel perform the steps above in reverse order If the front panel sticker is not mounted it is easier to mount it after the front panel has been replaced in the junction box MEK 2300 JCT 1100 Service instructions AX218 56 2e BTG 2002 5 2 Service hardware DANGER High voltage within the junction box Connections may only be carried out by qualified personnel applies to version with 100 240 V AC
190. xposed determines the choice of flange despite the fact that some flanges will themselves accept higher pressures than these All measuring vessels are supplied with deflector rails as previously de scribed Because of the high pressure there is no inspection cover Measuring vessels can also be supplied flanged on two sides to enable the transmitter to be fitted on one side and a BTG HDS sampling valve on the other for use with a BTG KNA kappa number analyzer See Fig 21 Cleaning and emptying of the measuring vessel can be simplified by in stalling a 1 inch ball valve either welded or threaded for water flushing Where a threaded valve is used tap the welded length of pipe on the ves sel to the desired thread standard 11218 56 2e MEK 2300 Installation instructions 31 BTG 2002 4 3 High pressure pipe installations 25bar 226 C 4 3 1 2 Installation in pipe a Turn the vessel so that the flow direction arrow points in the actual direction of flow b Align the vessel and any gaskets before welding it to its stud join ing the flanges If welding a full penetration weld should be used c Fit the 10 mm stud bolt supplied into the upper hole in the trans mitter flange and lock it in position with sealant d Fit a 1 inch ball valve in accordance with the recommendation above e If the transmitter and sampling valve where fitted are not to be installed immediately screw a blank flange onto the transmitt
191. y becomes lower The calibration is however always correct at the consistency point where the calibration was made If the consistency can be varied for example at other changes of the operating conditions we recommend you to make a multi point calibration Special conditions apply in single point calibration KO may be ei ther positive or negative K1 is normally positive K2 and the cor relation factor are always zero in single point calibration 60 MEK 2300 Operating instructions 01218 56 2e BTG 2002 5 6 Evaluation and documentation of calibration Typical errors in multi point and updated calibration Symptom 3 Poor match between calibration points and calibration line low correlation factor The reason may be that the feedback value for rotation in air is wrongly adjusted should be between 4 and 8 The set value can normally be read from the FEEDBACK IN AIR line of the printout If the value is normal according to the printout the setting of the transmitter may have been disturbed Another rea son may be that the sensor has been replaced or moved to another Py PU location without the FEEDBACK IN WATER value being repro grammed 38 Ler 0 Action Empty the line and adjust FEEDBACK IN AIR to the correct val ue Enter the relevant value for FEEDBACK IN WATER in the pro gram gt In case of very low consistencies it may be advantageous to measure
192. y samples The feedback signal will then be stored in the memory for sample 1 mean value over 40 seconds Sample 0 is the feedback in water value entered at the factory see section 5 2 2 on page 40 Single point calibration will be based on a single feedback value and the corresponding laboratory sample and calculated to a special adapted formula to give a good correspondence to Menu the actual curve Press Evaluate the laboratory samples Calculate the mean value Press ub Sample 0 the feedback value during rotation in water and sample No 1 should be activated during single Eus Off point calibration Press On for sample no 00 Press saple until the arrow reaches sample No 1 Press ae On Press ub and enter the laboratory value Off Enter Menu mean value Press Menu Press LM to allow calibration to be performed The rel evant calibration curve and the calibration constants will now appear 01218 56 2e MEK 2300 Operating instructions 45 BTG 2002 5 3 Calibration 10 Evaluate the calibration as per section 5 6 5 on page 60 11 Transfer the calibration to the transmitter Press amp 8 Check that all data that is displayed is correct If a code has been entered see section 8 on page 81 key this in correctly and press Yes to transfer all the data to th
193. you will close the comm port 6 For more help click on the menu choice Help 7 Switch on the hand held terminal 8 Send data to PC Main menu option deci 9 Press option de and the values as well as the calibration curve are copied to the PC 10 Save and print if necessary 01218 56 2e MEK 2300 Operating instructions 59 BTG 2002 5 6 Evaluation and documentation of calibration Menu 100 F e e d bl onstants a 50 k0 2 18 IRL 14 56 KIK2 0 00 Correlati x2 0 9 scale 5 o 1 008 4 00 4 Span SPC 1000 5 6 5 Evaluating calibrations By studying the calibration curve calibration constants and correlation factor you can pinpoint and correct most calibration errors Typical errors in single point calibration Symptom 1 Calibration lacks precision The further away from the calibration point the greater the error Sample 0 FEEDBACK in water is not activated The curve is drawn between 0 FB value and the loaded point Action Go to ub and activate sample 0 Calculate the new con stants in calibration press LM Alternatively you can pro ceed to a multi point calibration to get better precision see section 5 4 on page 50 Symptom 2 The measurement correlates badly against lab samples At a one point calibration the consistency should not deviate too much from the nominal value as the accurac
194. ype la bel on the transmitter order Fig 24 whichever is relevant D Finally determine and set the sensing element s feedback in water value according to Fig 24 Procedure i Cal 1 Press brate in the main menu 2 Then press Zinc Press mew and enter the correct feed new value back in water value at sample 0 Exit by pressing 01218 56 2e MEK 2300 Operating instructions 41 BTG 2002 5 3 Calibration 5 3 gt Calibration can be improved by entering additional calibration points i e by making a multi point calibration according to section 5 4 on page 50 Calibration 5 3 1 Predefined calibration curves See section 5 1 1 on page 32 item A In the table below calibration constants KO K1 amp K2 are listed for dif ferent pulps These constants are only valid for the sensing element type B and it s consistency range 1 546 for long fibers and 1 6 5 for short fibers The constant KO is dependent upon network frequency 50 or 60 Hz for the motor rpm Predefined calibration constants KO KO0 50 Hz 60 Hz Hardwood bleached nus Short fiber chemical pulp 24 20 0 7 2 3 bleached Hardwood unbleached HWU Short fiber chemical pulp 20 AS 27 unbleached Soft wood bleached Swe Long fiber chemical pulp 2 20 p d bleached Software unbleached SWU Long fibe

MEK-2300 with JCT-1100

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