User Manual
Contents
1. rubber pipe etc People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group f f 0 grounding loop 0 immer wa electrode grounding loop Cathodic protection pipe Flange connects with copper line and insulated with the earth line insulated pipe copper line ss E i e insulated washer connection grounding loop Remark when sensor installs at the insulated pipe grounding loop can be avoided Wiring connection e All connection should follow the direction All wire should be DN 5 8mm The power cable uses 2 cores to protect the parallel Line core cross sectional area gt 0 73mm2 The signal cable uses 2core shielded Wires core cross sectional area gt 0 75 mm2 After the wiring completes must inspect the outer covering lid and the electric cable tightens the attachment in order to avoid the dust or the water enter After the wiring tightens not to be possible to replace prevents the water leakage or affected with damp e When the scene walks the line use threading tube should pay attention threads Tube s lower extremity to keep the freeing port prevents the water to enter the Flowmeter through the threading pipe flow 20 People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group Schematic layout of terminals see ee EMFO1 Terminal 2 20VAC 220V AC power supply terminal block schematic O felelete O EMNFO1 Terminal2. 0 16 This Parameter is determined during the actual flow calibration This parameter is only associated with the sensor which means that the sensor characteristic Value New Sensor K value confirm New Sensor K original Sensor K Checked value standard said Optional Enable Prohibit 6 2 Sensor K 6 3 Empty Check 6 4 Linearity Default Enable After sensor good grounding set this to Enable normal measuremen 6 4 1 Adjust_SW 6 4 2 Compensation Point 9 m s POINT_9 m s 6 4 3 Compensation Coefficient_9 Coefficient_9 6 4 4 Compensation Point 8 m s POINT_8 m s 6 4 5 Compensation Coefficient_8 Coefficient_8 6 4 6 Compensation Point 7 m s POINT_7 m s 6 4 7 Compensation Coefficient 7 Coefficient 7 6 4 8 Compensation 12 Optional Prohibit Enable Default Prohibit This is set to Enable fix it enabled Float 20 0 0 0 Default 0 0 This setting value must be gt Compensation point_ setting value Float 3 00 0 05 Default 1 0 Float 20 0 0 0 Default 0 0 This setting value must be gt Compensation point_ 7 setting value Float 3 00 0 05 Default 1 0 Float 20 0 0 0 Default 0 0 This setting value must be gt Compensation point_ 6 setting value Float 3 00 0 05 Default 1 0 Float 20 0 0 0 People are our prime movers Point 6 m s POINT _6 m s 6 4 9 Compensation Coefficient_6 Coefficient_6 6 4 10 Compensation Point 5 m s PO
3. after seal in case of any condensation i People are our prime movers 4 System configuration When sensor normal rate are the same Scale range m3 h Flow signal Direction Flow indicate Scale frequency Pulse Pulse length Protocol Transfer rate Data digitally Verify Stop position Address Change with sensor s DN 0 0 9 0 Forward reverse double direction Forward reverse 1200 2400 4800 9600 19200 CARS e CAT Double direction 26 Forward direction When the heat energy table installed RLT Instrumentation Pvt Ltd Unit of RLT Group The scale division current capacity marked has corresponded to the 20mA electric current output transient flow value Eg flow range 100m3 h small flow 1 0 Then when instantaneous flow lt 1m3 h cancel When establishes as forward the reverse current capacity will not measure and the demonstration When establishes for reverse the forward current capacity will not measure and the demonstration counter but needed to demonstrate that was the forward current capacity then chose reverse 20 00555 See pulse table Pulse liter ME MODBUS RTU MODBUS ASC MODBUS RTU 9600 NONE ODD CA AGNE Indicates flux and cumulative energy pulse width Its scope changes along with the pulse equivalent s value s change is 100ms most greatly works as the establishment is O expressed that the pulse widt
4. 24VDC 24V DC power supply terminal block schematic Note The picture is only schematically the specific kind prevail People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group 2 Terminal Descriptions Marked AC85 265v power Lis Ac220v power supply supply L N 24V COM 4 20mA Pulse RS485 Alarm H AC85 265v power N is Ac220v power supply supply DC 18 36v power Power supply 24v supply DC 18 36v power Power supply 24v supply 4 20mA output Current output 1s active does not require nor external 24V power supply to the current output terminals the load resistance Frequency or pulse t output Frequency or pulse output is active the load current lt 30mA Frequency or pulse output RS485 output RS485 output RS485 output mats High alarm output High alarm output relay 24VDC 2 High alarm output recommended to pick up the load current lt 30mA Low alarm output relay 24VDC Low alarm output recommended to pick up the load current lt 30mA NOTE The low alarm relay output connector it is necessary according to the corresponding relay type with a good power supply see the wiring schematic People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group 3 Power wiring diagram 230 VAC POWER SUPPLY 220V AC power supply 24 VDC POWER SUPPLY 24V DC power supply 4 4 20mA current output wiring diagram no ext
5. INT_5 m s 6 4 11 Compensation Coefficient_5 Coefficient_5 6 4 16 Compensation Point 4 m s POINT_2 m s 6 4 17 Compensation Coefficient_4 Coefficient_4 6 4 14 Compensation Point 3 m s POINT_3 m s 6 4 15 Compensation Coefficient_3 Coefficient_3 6 4 16 Compensation Point 2 m s POINT_2 m s 6 4 17 Compensation Coefficient_2 Coefficient_2 6 4 18 Compensation Point_1 m s POINT_1 m s 6 4 19 Compensation Coefficient_ 1 Coefficient_ 1 RLT Instrumentation Pvt Ltd Unit of RLT Group Default 0 0 This setting value must be gt Compensation point_ 5 setting value Float 3 00 0 05 Default 1 0 Float 20 0 0 0 Default 0 0 This setting value must be gt Compensation point_ 4 setting value Float 3 00 0 05 Default 1 0 Float 20 0 0 0 Default 0 0 This setting value must be gt Compensation point_ 3 setting value Float 3 00 0 05 Default 1 0 Float 20 0 0 0 Default 0 0 This setting value must be gt Compensation point_ 2 setting value Float 3 00 0 05 Default 1 0 Float 20 0 0 0 Default 0 0 This setting value must be gt Compensation point_ 1 setting value Float 3 00 0 05 Default 1 0 Float 20 0 0 0 Default 0 0 This setting value must be gt Compensation point_ 0 setting value Float 3 00 0 05 Default 1 0 Note The Low alarm relay output connector it is necessary according to the corresponding relay type with a good power sup
6. RLT Instrumentation Pvt Ltd Unit of RLT Group Version 1 01 2014 RLM ELECTROMAGNETIC FLOW METER USER MANUAL People are our prime movers 10 TABLE OF CONTENTS Working principle Flow Sensor Technical Specification Flow Meter Technical Specification Flange Type Specification Convert technical data Display General Operation Lining material selection Installation Wiring Diagram Trouble shooting RLT Instrumentation Pvt Ltd Unit of RLT Group PAGE NO 15 17 21 28 People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group General Description Electromagnetic flow meter suits for all kinds of liquids flow measuring such as electronic conductivity liquid mud and slurry etc on the basis of 1ts min conductivity The result cannot be affected by temperature pressure viscosity and density It can also be used for measuring corrosive material as long as the right material has been chosen for the lining material Solid medium will not affect the result Flow sensor and intelligent converter compact or separately composes a complete flow meter Application The main application area Features Pure Water sewage water Electronic manufacturer and assign Chemistry and Industrial medicine Food Industry No move assembly no abrasion Measuring range rate 1 100 No flow enhance equipment Suits for various of electronic conductivity liquid No affect from temp
7. When the pulse equivalent 0 0 by the Upper frequency limit Hz setting determines the frequency output When the pulse equivalent gt 0 0 by the Pulse equivalent L P Setting determines the frequency output Float 1000 0 0 0 ms Default 0 0 When this value is 0 the output of the pulse duty cycle of 1 1 Optional Low Active Low High Active high Default Low Active Low The parameter is relate with the Pulse width setting When setting is low The pulse width of the low pulse level is the setting value of Pulse Width When set to high the pulse width of the high pulse level is the setting value of pulse width Communication Setting 5 1 RS485 Protocol 5 2 Baud Rate 5 3 Data Bit 5 4 Check Mode 5 5 Device ID Optional Modbus RTU Modbus ASCII Default Modbus RTU Optional 1200 2400 4800 9600 19200 38400 Default 9600 Optional 7 8 Default 8 In RTU protocol can t select 7 data bits Optional None Odd Even Default None Digital 247 1 Default 1 People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group 6 Factory Setting Factory Setting Optional 1 15 23 45 6 8 10 15 20 25 32 40 5065 80 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 1000 1100 1200 1300 1350 1400 1500 1600 1700 1800 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 mm Default 100 mm 6 1 Sensor Size mm Float 9 9000 0 0100 Default
8. ar Total Default No Clear Total 2 4 Preset amount m3 Float 9999999999 0 00 m3 Preset Total Default Total Current Set this value the current value of the total amount will be covered by this setting Note If the total is displayed Over Flow please timely processing Cleared or Preset so as not to affect the normal measurements 3 Meter Calibration Calibration Meter Calibration 3 1 4 mA Calibrate Float 5 0 3 0 Default 0 0 Perform this function with an ammeter to measure the 4 20 mA current output the input meter readings the meter automatically calibrate the internal operations 3 2 20 mA Calibrate Float 21 0 19 0 Default 0 0 Perform this function with an ammeter to measure the 4 20 mA current output the input meter readings the meter automatically calibrate the internal operations 3 3 Zero Calibrate Optional No Yes Default No Confirm the measurement tube 1s filled tube and fluid at rest after a full warm up perform this function the instrument automatically Zero Calibration People are our prime movers 4 Pulse Setup Pulse Output Setting 4 1 Freq Max Hz 4 2 Liter Pulse 4 3 Pulse width ms 4 4 Pulse Level 5 Communication Setting RLT Instrumentation Pvt Ltd Unit of RLT Group Float 5000 0 100 0 Hz Default 2000 0 Current flow corresponding to the output frequency Hz Current flow rate m3 h scale flow m3 h frequency limit Hz Float 9999 0 0 0 Default 0 0
9. d water choose IP67 or IP68 Structure Compact flow meter is the first choice under normal situation Choose separate meter with IP67 or IP68 protection grade when sensor can be swallowed by the liquid when the temp is high choose separate flow meter 15 People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group Signal Output With source frequency output means no outside power needed 1f not It must with external power supply frequency output exit can set with alarm output to indicate reverse flow low level or forward flow high Level or instantaneous and total flow 4 20 mA can indicates instantaneous flow data signal Power Supply 220V AC or 24 V DC 220 V AC is the priority selection Ambient Temperature Install site shall avoid perpendicular sunlight influence ambient temp should be 5 C 55 C Avoid Jamming source Must choose not strong electromagnetic flow meter field radiation place to install the flow meter avoids for example the electric motor the transformer the frequency changer and so and which could be easily to bring about the electromagnetic interference to the equipment Flow meter survey principle based on the faraday law of electromagnetic induction the primary signal which it produces is week insufficient mill volt If flow meter has a strong magnetic radiation its accuracy can be influenced even its normal work Length of the straight pipe Avoiding all kinds of assemblies such as va
10. entage scale flow x this setting the output low alarm signal This setting value must be lt high flow alarm setting percentage 1 6 Percentage of High Float 99 00 1 00 Flow Alarm Default 90 0 High Alarm When the instantaneous flow rate is greater than the absolute value of the percentage scale flow x this setting the output signal is high alarm This setting must be gt low flow alarm setting percentage 1 7 Damping Time Float 30 0 0 1 Default 1 0 Define traffic smoothing time constant the larger this value is more stable flow but the longer the response time 1 8 Flow Direction Optional Bid Two Way For Forward Rev Reverse Default Bid Two Way People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group When set to Positive the reverse flow will not be displayed display 0 When set to reverse the forward flow will not be displayed display 0 When set to Both the forward and backward flow can be displayed 1 9 Flow Direction Optional Forward Forward Reverse Reverse Indication Default Forward forward When the flow rate is displayed as a negative value this option can be switched to the positive flow display 2 Total Flow Volume Settings 2 1 Total Unit Optional L M3 USG Kg t Default m3 Definition of total units displayed 2 2 Total Decimal Optional 0 1 2 Default 1 Defines the total number of decimal places displayed 2 3 Total Reset Optional No Yes Cle
11. erature viscosity pressure and density Anti corrosion Measure both to and reverse flow Huge display easy operate Long term EEPROM to save data when lose power Support MODBUS HART communication protocol Wide working volts range Self diagnose People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group Working principle It s measuring principle bases on Faraday electromagnetic induction law When the liquid flow through the measuring pipe which all around magnetic field the two vertical directions will have the induced electromotive force which is proportional with the mean velocity of stream Flowmeter consists of sensor and converter Converter transfer field current to inner loop of the sensor to engender magnetic field Conductivity liquid flow through the measuring pipe and get induced force because of cutting magnetic line By then the electrode around the pipe wall incept induced force and transfer them to converter through signal wire Converter filer induced force spread calculate and exchange them into proportional standard Current signal and frequency signal Electromagnetic flow sensor Sensor s shell is sealed with carbon steel only electrode and lining contact with medium People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group Technical specification Reaches 8 element liquid crystal displays current clock to indicate flow data Two kinds of unit
12. ernal power supply Flow indicator PLC or Counter i People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group 6 RS485 output wiring diagram RS485 Communication 7 High alarm output wiring diagram requires external power supply External power Electric Relay Alarm 8 Low alarm output wiring diagram requires external power supply External power External power Electric Alarm Relay External power i People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group Carry and lining protection Avoid using club or corb to hang flow meter in case of damage of lining For Flowmeter with DN80 size or above size avoid carrying converter or junction box with hand since they can t bear strong weight 1 Ta i a Keep warm of the pipe Pack sensor with cotton at shown position y f a convert MN A er q i 50 mm sensor f Remark shadow part indicates the right place to cover cotton If flowmteter has been wrong packed like the left picture shown the Flowmeter will not work normally due to its heat The right packet keeps a distance of20mm between cotton and converter s bottom Meanwhile the sensor should be well packed to prevent the heat Cable gland e All cable is M16x1 5 OD suits for 5 8mm e After connection use glue water seal cable and exit Screw gland
13. h is 100ms Custom set freely Equipment address setting People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group Calculation of pulse liter pulse As we know pulse frequency Hz current instantaneous flow L s pulse L P A proper pulse frequency is 1Hzo In this case Pulse L P instantaneous flow L s 1 H2 It is because when pulse doesn t change use max Instantaneous flow to replace current instantaneous flow is proper And we can easily see Pulse L P max flow L s or pulse L P max Instantaneous flow 3 6 m3 h Trouble shooting Output at 0 mA No power to transmitter Check power source and Connections to the transmitter Analog output improperly Check the analog power switch See Configured Hardware Switches for Proper settings Electronics failure Replace the electronics boards Output at 4 mA Transmitter in multidrop Configure Poll Address to mode 0 to take transmitter out of Multidrop mode Low Flow Cutoff set too high Configure Low Flow Cutoff to a lower setting or increase flow to a value above Flow is in reverse direction the low flow cutoff Enable R Flow function Shorted coil nable Reverse Flow function Empty pipe Coil check Electronics failure Fill pipe Replace the electronics boards Pulse output at zero No power to transmitter Check power source and Regardless of flow Connection to the transmitter Wiring error Check pulse output wiri
14. ial DN50 DN2000 Ne lining material DN10 DN400 FEP DN25 DN1000 PTFE 2 When chosen DN smaller than DN50 sensors standard PN is PN1O DN65 DN200 PN 16 DN250 DN1000 PN 10 DN1200 or above PN6 3 If required pressure higher than normal pressure It needs to customize People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group Converter Based on micro technology converter has advantages of intelligent instrument does such as high standard easy structure Intelligent converter use thunder protection method design circuit which applies to various bad environments Long Term store Following data can be noted instantaneous flow electric information damage information total flow and Max Instantaneous flow Total flow and reverse flow notes to current total flow Max instantaneous can store 36 months monthly store 15 years yearly store lose power information can have 100 items damage information have 20 items Display Description Converter has a 8 element crystal display with a diagram display pattern This data can be displayed instantaneous flow total forward and reverse flow all kinds of alarm information and stored information Specifications Saved in non volatile EEPROM No battery backup necessary Data retention 100 years maximum Programming Method From keypad provided in the instrument RTC amp EEPROM ey Real Time Clock Memory to store periodic records Alarm Housing Wal
15. l IP65 IP67 IP68 all applys eg BS EN1092 1 People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group Flange type size spec all Size all e a a MECO O ECO o IT A 160 254 Pas 1s oo 64 160 254 200 25 ou u 160 254 925 35 O18 18 o 6 152 102 DN Lining Material Flow Range Size e mm Ci os 220 EZE S922 Pas gar 30 350 400 12 922 440 ES 550 840 29 270 294 25 ae a so 40 181 181 326 100 o 283 283 as 100 442 442 7 372 aso 150 636 636 300 403 200 250 113 1130 350 460 aso 400 17 66 1766 400 511 woef e e om asas 2663 sy ses aso 750 3462 3462 620 Pao 900 45 22 4522 aso 1200 57 23 5723 EA so 1500 70 65 7065 En 600 2500 101 74 10174 782 700 4000 138 47 13847 700 1068 so 5000 180 86 18086 800 1157 ooo P gt ooo 22891 22891 900 1230 1000 8000 282 60 28260 1000 1332 1200 e 10000 406 91 40691 1200 1592 Crane A s5390 1400 1870 1600 e 723 46 72346 1600 2080 1800 e 91562 91562 1800 2300_ Remarks 1 Above means different DN can choose different lining mater
16. l Mount Panel Mount Compact type Communication RS485 Isolated Output 4 20mA programmable according to Qmax Pulse programmable P with number of pulses per unit where unit can be liter or m3 People are our prime movers Program Variables RLT Instrumentation Pvt Ltd Unit of RLT Group PRECAUTIONS a Do not connect AC signals beyond the rated values to the unit Irreparable damage will arise b Instrument power supply tolerance is 15 from the rated supply voltage Variations beyond the stated limit may damage the instrument GENERAL OPERATION 1 Flow Setup Instantaneous flow rate setting 1 1 PV Unit Optional L s L m L h m3 s m3 m m3 h USG s USG m USG h kg s kg m kg h tls t m th Default m3 h Display the instantaneous flow rate display unit Optional 0 1 2 3 Default 0 Display the instantaneous flow of decimal places displayed 1 3 Flow Range Float 99999999 00 0 00 m3 h Default 100 0 m3 h Scale flow refers to the instantaneous flow rate reaches the set value Current output 20mA Changing this parameter will affect Current output high and low flow alarm 1 4 Flow Cut off Float 9 90 0 00 Default 0 0 When the instantaneous flow rate is less than the absolute value of this setting scale flow x percentage making instantaneous flow 0 1 5 Percentage of Low Float 99 00 0 00 Flow Alarm Default 0 0 Low Alarm When the absolute value of the instantaneous flow rate is less than the perc
17. lve elbow etc try to lengthen the straight pipe make sure its length over fifth DN of the upper parts lower parts over two DN People are our prime movers Installation RLT Instrumentation Pvt Ltd Unit of RLT Group Avoiding all kinds of assemblies such as valve elbow etc try to lengthen the straight pipe make sure 1ts length over fifth DN of the upper parts lower parts over two DN flow control open valve 1 MT Pa a sek gt o b A 4 gt se h 99 elbow E a TABS s N m ENA Tr pi 3 PAPA above SD upper injection f E E mh i flowmeter shall far away from th injection port Liquid conductivity shall stay stable position T pipe above 5D n control valve 2 i i ti am TT A il j L i above 10D ae es 04 when upperand lower pipe with different DN central aone angle q should less than l5degree If the upper position has different medium in it can cause unstable conductivity and affect the results In this case move the inject position to the lower parts If the injection position has to be upper position then far away from the flow meter 20 times of the DN is perfect to keep the liquid mix 17 People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group Keep the electrode axes level Flow meter s connection shall correspond to ins
18. ng at digital output terminals Refer to wiring diagram for pulse output Reverse flow Enable Reverse Flow function Electronics failure Replace the electronics boards Reading doesn t Transmitter control system or Check all configuration variables for the 7 People are our prime movers appear to be within rated accuracy other receiving device not configured properly Electrode Coating Air in line Flow rate is below 1 ft s specification issue Auto zero was not performed when the flow tube is full or flow rate 18 zero Flow tube failure Shorted electrode Flow tube failure Shorted or open coil Transmitter failure 28 RLT Instrumentation Pvt Ltd Unit of RLT Group transmitter flowtube Communicator and or control system Perform a loop test to check the integrity of the circuit Use replaceable electrodes Downsize flow tube to increase flow Rate above 3 ft s Periodically clean flowtube Move the flowtube to another location in the process line to ensure that it is full under all conditions See accuracy specification for specific transmitter and Flow tube Perform the auto zero function Perform flow tube tests electrode Perform flow tube tests coil Replace the electronics boards People are our prime movers Noisy Process Meter output is unstable Chemical additives upstream of magnetic flow meter Sludge flows Mining Coal Sand Slur
19. oxidizability carbide People are our prime movers Lining material selection Lining material prog Application area Temperature Selection Sensor has four working temp to choose 70 95 130 Max is 180 Bears the general low concentration acid and alkali salt the corrosion Heat resisting the inoxidizability is good the mechanical strength is high the anti attrition performance is good cleans up when the Surface is not easy to damage the inside lining 20 180 C May resist all chemical mediator nearly the corrosion the wear ability is bad 40 180 C Ground Loop Selection When this condition is bad please install ground loop at both side of the sensor when medium has a high abrasion and choose neck ground loop to protect lining Protection Grade 0 70 C RLT Instrumentation Pvt Ltd Unit of RLT Group Uses in the process water the sewage the low concentration acid and alkali salt brine May reach most greatly according to the request 95 C DNS50 DN2000 may choose the Ne lining material Besides the mortar and so on strong wear ability medium s all fluids may use in likely the tap water place hygienic request may reach most greatly according to the request 180 C DN6 DN400 may choose the FEP lining material Cannot use in the negative pressure pipeline and the Wear ability strong fluid DN25 DN1000 may choose the PTFE lining material Compact types choose IP65 for col
20. ply see the wiring schematic 13 People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group Install Structure Connect with sensor composing a compact flow meter connect through a signal wire to compose a separate flow meter Separate flow meter Separate converter i8nstall on the wall or rack DN When the normal flow over 0 5 m s choose flow meter with the same DN as measuring pipe when in this case lower flow velocity cannot suffice measuring requirement or accuracy With high accuracy min velocity should be 1 m s Electrode material SS316L Suit for industrial water domestic water sewage water and other acid liquid etc Suit for Sea water chloride hypochlorous To the sulfuric acid the phosphoric acid the hydrofluoric acid and so on non oxidized acid the alkali salt have the good corrosion resistivity Besides hydrofluoric acid nearly ability all chemical mediator Hoag salloy B corrosion Because its price is expensive only uses in the Tantalum hydrochloric acid and the strong sulfuric acid Has the outstanding wear resisting performance uses in Tungsten E l i W attrition medium specially and so on mud paper pulp Bears the oxidized acid like nitric acid nitration mixture chromic acid and sulfuric acid mixture Also bears the Hoag s alloy C Hc oxidized salts or other oxidant environment corrosion To the sea water the alkaline solution the oxide compound solutions have the good in
21. ries other slurries with hard particles Styrofoam or other insulating particles in process Electrode coating Air in line Electrode incompatibility Improper grounding High local magnetic or electric fieKF 700s Control loop improperly tuned Sticky valve look for periodic Oscillation of meter output Flowtube failure Analog output loop problem 29 RLT Instrumentation Pvt Ltd Unit of RLT Group Move injection point downstream of magnetic flow meter or move magnetic flow meter Decrease flow rate below 10 ft s Consult factory Use replaceable electrodes Downsize flowtube to increase flow rate above 3 ft s Periodically clean flowtube Move the flowtube to another location in the process line to ensure that it is full under all conditions Check Magnetic Flow meter Material Selection Guide for chemical compatibility with electrode material Check ground wiring See wiring and grounding procedures Move magnetic Flowmeter 20 25 ft away is usually acceptable Check control loop tuning Correct valve sticking Perform Flowtube Tests Check that the 4 20 mA loop matches the digital value Perform loop test People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group Head Office RLT INSTRUMENTATION PVT LTD 2 Rangarajapuram Ist Street Kodambakam Chennai 600024 Ph 044 24806500 10 Lines Fax 044 24806555 E mail chennaiho Orltin
22. s to choose m3 or L Structure Inserted style compact type or separate type liquid or solid liquid two phase fluid conductivity gt 0 5us cm2 Range 0 01m s 12m s Accuracy Range between 0 1m s 10m s can be 0 5 DN mm 6 mm 3000 mm PN6 PN10 PN16 PN25 PN40 PN63 PN100 PN160 PN250 PN420 Output signal 4 20mA or frequency RS485 support MODBUS protocol not standard Support HART option Connection DN6 DN3000 flange connection Connection standard Suits for all kinds of flange standard eg BS EN1092 1 Standard Accuracy apply to EN1434 1 2003 standard CE certificate Apply to LVD 2006 95 EC and EMC 2004 108 EC EN 61326 1 2006 radiation standard express apply to BS EN30081 1 EN 61326 1 2006 anti jamming standard express apply to BS EN30082 1 EN 1 2001 Protection grade IP65 IP67 amp IP68 Power supply AC 85 260V or DC 24 V Ambient temperature 5 55 C Ambient humidity lt 85 r h no condensation People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group Flow spec technical spec Application area Conductivity fluid such as cold and warm water pure water and corrosive Material etc DN mm PN Electrode material Lining material Medium temp Shell material Protection grade Connection Size Specification 6mm 3000mm PN6 PN10 PN16 PN25 PN40 PN63 PN100 PN160 PN250 PN420 SS 316L PTFE or customize 0 70 C max is 180 C Carbon stee
23. st com Website www rltech in People are our prime movers
24. tall directiono X If installation condition limit please maintain the permission angle of tilt lt 45 No bleb Make sure there s no bleb before install the highest ES point should AE S a install valve K right position pipe wrong position Full pipeline People are our prime movers RLT Instrumentation Pvt Ltd Unit of RLT Group Flow meter can be installed in horizontal vertical and tilt way However pipeline shall fill with liquid and no bleb install position install at the low position gt e J 3 WE E x nm Pe I as li H injection or exit pipe level pipe vertical pipe Install way If medium has solid grain vertical install way suggested Flow meter s axes should be level when install in case of any bled Pipe install Avoid flow meter s upper and lower pipe tilt keep them straight to the upper and lower flange Any sealed draff should be cleaned and plus shim After installation no seal work to protect the lining Grounding Since flow meters induce signal is weak it can be easily affected by other signal The sensor and converter should be at the same electronic level with the liquid and grounding together Normal metal pipe no need of grounding However liquid should get through to shell with the earth line f f 0 grounding loop a ss inner wa electrode grounding loop Insulated pipe plastic pipe
Download Pdf Manuals
Related Search