Home

Manual - FlowVision GmbH

1. 3 5 H CD fig 10 The FC01 Ex driver output comprises an integral safety circuit which when releasing the counter operating coil will limit overvoltages caused by inductance and convert the energy stored The counter should be able of processing a counting frequency of 2 10 Hz as the pulse length is 50 ms 0 1 continuously 22 FCO1 Ex Flow Meter FLSW _ Definitions and mounting instructions It should therefore be ensured that the counter can be increased by one during the time available If a separate release network is preferred to the integral network care should be taken when processing the max frequency of 10 Hz to ensure the energy stored in the operating coil has dissi pated by the time the counter output is switched on again The time to do this should be below 40 ms making due consideration to switching times and pulse variations Typical circuit example 2 w zener voltage ton switch on time inductance of the time constant of switch off current counter drive fig 11 Note there will be a reset pulse available at the output in the moment the supply voltage of the FC01 Ex is applied make sure that
2. cable monitoring head 1 E as 555 9 x 4 gren VP green 77 7 R HEIZ i heating circuit yellow WE red yellow 6 6 a s pod 1 1 i 1 Connection TE R Tdiff See circuit E diagram fig 6 1 L i l i violet i red red 3 1 TE CAJA ama sensor circuit blue pink 2 2 I l l 1 1 T 8 7 8 lt gt pink id r signal circuit 1 1 I grey FX grey f T Eod 1 R HEIZ 1 1 5 5 pod brown j brown TO a 10 signal circuit i od ite 11 11 green R Tref 8 white white T CN 1 bl 421 4 black blue shield i 1 1 Tr A ap safety barriers cable round plug flange plug from Stahl Kabel Union Coninvers Binder 623 4x 2 x 0 75 mm UC 12S1NR A80DU 99 4607 00 12 light blue LE3H004 X221 51701 X221 51801 fig 5 16 FCO1 Ex Flow Meter FL W _ Definitions and mounting instructions Install equipotential bonding along the complete cable run of the intrinsically safe circuit from the monitoring head to the grounding system near the flow m
3. JO 10 49 4 NINJ 4 LI3HN3HHV 5 SNISTSO LINN dL LINN 3909 Jo m 4 v y ou Sd4 o3S 1334 96 s w o3s 3H813W LINN LINN LINN LINN w juo Juoo Juoo juo D x 36251 L 151 16251 3 lt 151 1 251 1 151 3 lt 251 4 151 S3HOLIMS SSHOLIMS S3HOLIMS SAHOLIMS w w juo nueuiqns yun nueuuqns uoneulquioo youms nu uiqns snu uuqns uoneinBijuoS 53 PERATION W Flow Meter FCO1 Ex lt JuoO SNOTIVD SN 2 d x 4XSNOTIVO 103785 Av asia gt 3S10d AONSNOZYS o Iar SRA y SYN ou lt 49410 se lt 1nd1no AONANDAYS qu 94139 Avidsld A juo9 C demon en ALANINASNOTIVS 59 104136 s u 002 S4 w y 4 2097
4. 1 is provided with extensive test and diagnosis functions which may be classified as follows 7 1 1 Priority group Priority group comprises the switch on test routines FCO1 Ex self test which are carried out when the system is switched on Their implementation is indicated Errors No 1 to 5 do not allow system operation The test routines may be repeated by pressing any of the switches even after several trials the switch on test cannot be conducted without error indication the system should be returned to the supplier for rectification indicating the error number Priority errors cannot be rectified by the user 7 1 2 Priority group These test functions are also continuously carried out during operation The occurrence of errors No 50 10 and 21 will cause measurements to stop indicating the error and monitoring the source of the error Upon rectification of the error the system will automatically return to measuring operation 7 1 3 Priority group III These test routines are also continuously carried out during operation Other than the above priority groups errors No 20 30 31 60 40 and 41 will not cause meas urements to stop the error output will indicate and the number of the error will be shown on the display 63 W Meter FCO1 Ex vielen 7 2 Potential errors Independent of the priority group all errors found are indicated with their relevant number In ord
5. vision ERROR LS1 ON OFF switch on value for limit switch 1 equals switch off value for limit switch 1 ERROR LS2 ON OFF switch on value for limit switch 2 equals switch off value for limit switch 2 The menu can only be quitted after correction of the error s To do this return to the beginning of the parameter selection menu by pressing DOWN or A UP and select the menu option with the incorrect entry for correction An overview of the parameter selection menu is shown on the following page 57 _FLSSW Meter FCO1 Ex vision OPERATION 5 1 2 6 Parameter selection menu parameters gt PARAMETERS MEAS TIME 3 sec PARAMETERS LS1 ON 1 24 m s E PARAMETERS LS1 OFF 1 50 m s PARAMETERS LS2 ON 73 0 C PARAMETERS LS2 OFF 68 5 C PARAMETERS FLOWSCALE 1 1 2 2 gt V no Paramet plausible ERROR PARAMET o yes 1 PARAMETERS PUSH main menu 7 58 1 Meter FLSW _ eee vision 6 On line phases 6 1 Switch on performance Upon power application POWER ON TEST will be shown on the display for approx 1 sec with the software version number being indicated in the second line
6. ERR A OUT TEMP ZERO 2 FS initial value 2 final value with temperature analogue output ERR BARGRAPH OUT OF RANGE bar value outside measuring range ERR BARGRAPH ZERO 2 FS bar initial value 2 bar final value 48 FCO1 Ex Metr FLSW _ wie The menu can only quitted after correction of the error s do this return to the beginning of the configuration menu by pressing W DOWN or A UP and select the menu option with the incorrect entry for correction Caution If during the configuration data are affected which are accessible in the parameter selec tion menu which may be the case for the options Medium Selection and Limit Switch Assignment the option PARAMETERS in the main menu will be flashing In this event it is imperative to branch into parameter selection menu to set the data in conformance with the desired application Example Changing the limit switch assignment from 451 LS2 gt to LS1 F LS2 F affects LS2 ON 0 00 Parameter data LS2 OFF end of measuring range Reason Changing the physical assignment of limit switch 2 will adjust its switch on and switch off values to the new assignment flow rate An overview of the configuration menu and a summary of the measuring ranges and menus available for the sensor type selected are shown on the following pages 49 W Meter FCO1 Ex vieron 5 1 1 15 Configuration menu Co
7. fig 17 With limit switch 1 set for flow rate and a flow volume time unit selected in menu DISPLAY SELECT and when setting the switch on and switch off value the pertinent flow volumes will also be indicated 5 1 2 3 Limit switch 2 switch on value menu option LS2 ON Limit switch 2 switch off value menu option LS2 OFF See limit switch 1 5 1 2 4 Scaling factor menu option FLOWSCALE The scaling factor influences flow rate indication The factor which may be set between 0 01 and 9 99 allows flow rate indication changes increas ing or reducing the measured value in the display For example the scaling factor may be used to indicate the average flow rate in the pipeline rather than that available at the sensor 5 1 2 5 Quitting the parameter selection menu Before the parameter menu can be quitted the controller will conduct a plausibility check of the data entered PARAMETERS is indicated when the data are found to be correct The menu may then be quitted by pressing M MODE Errors found during the plausibility check are indicated in the following sequence of priority Priority of entry errors in the PARAMETER SELECTION menu ERROR LS1 OUT OF RANGE switch on and switch off value for limit switch 1 outside measuring range ERROR LS2 OUT OF RANGE switch on and or switch off value for limit switch 2 outside measuring range 56 FCO1 Ex Meter FLSW _
8. During this period the integral controller will conduct test routines see chap 7 1 Test and diagnosis If during the test no error was found the display will indicate HEATING UP The 01 will then be the heating up period required for the measuring procedure 6 2 Measuring cycle Upon completion of the heating up period and availability of the first measured value the display will change to measuring cycle and the user interfaces such as analogue outputs or limit switches will be up dated The following operating data may be retrieved in the main menu during the measuring cycle 6 2 1 Operating data 6 2 1 1 Measured value s Flow rate and medium temperature are indicated by the units selected in the upper line of the LC display The lower line of the display will optionally show the switching condition of the limit switches and an analogue bar with a 10 segment resolution or the flow volume time unit pertinent to the indicated flow rate or the totalized flow volume totalizer function The analogue bar has different meanings depending on its configuration see para 5 1 1 9 menu option BARGRAPH The limit switches are identified according to their physical assignment i e by F for flow rate and T for medium temperature at the first or last place of the second line on the display If F and T are shown reversed the limit switch is in the switch on condition Limit switches lying within the analogue bar ra
9. II 1 2 G Ex ia T4 Ga Il 1 D Ex ia T100 C 130 Da It bears the EC TYPE EXAMINATION CERTIFICATE number EPS 14 ATEX 1 682 X Available materials and design versions see chap 2 3 and 3 1 1 Special conditions 1 Instructions of the user manual have to be observed particularly with regard to reduced ambient temperatures 2 Explosion protection depends in particular on the leak tightness of the sensor tips Therefore the monitoring head shall only be used in media to which the material is suited with regard to corrosion resistance 3 With Titanium sensors as wetted parts a probable occurrence of impact or friction sparking has to be excluded by using suitable mounting methods 4 Maximum surface temperatures for dust as a function of medium temperatures max medium temperature C max surface temperature C 45 100 50 105 55 110 60 115 65 120 70 125 8 75 130 FCO1 Ex Flow Meter FLSW _ s vision Definitions and mounting instructions 2 2 Classification Zones Classification zones are described for areas where combustible gases vapours or mist constitute an explosive hazard When determining the explosion hazard i e when categorising explosive areas the European standard EN 13237 Potentially explosive atmospheres Terms and definitions for equipment and protective systems intended for use in potentially explosive atmospheres have to be taken into a
10. 1 MW 5 MBE 100 MBE 8 6 2 Temperature measurement Measuring range 40 90 C 0 90 C t 1 MB 1 5 8 6 3 01 Electronic control unit Temperature drift of the electronic control unit 0 1 K MBE 0 35 Warm up to full accuracy 15 min 15 min MBE of final value MW measured value measuring range 1 Please enquire for higher accuracy 71 _FL wW Flow Meter 1 vox ie m 8 7 Sensor interface Electrical data Terminal Mnemonics Data XSK1 R HEIZ LO Function terminal for negative pole of heater element Drain output of heating current control Max sink current 88 mA Dielectric strength 0 5 V 20 V DC XSK2 R HEIZ HI Function terminal for positive pole of heater element Hi potential of heater source Output voltage range load dependent U 21 V 24 V DC Max current output Imax 100 mA Not short circuit proof XSK3 R Tref HI Function terminal for positive RTD pole for medium temperature measurement Input resistance gt 1 GQ Dielectric strength 17 V 30 V DC XSK4 R Tref LO Function terminal for positive RTD pole for medium temperature measurement Input resistance gt 1 GQ Dielectric strength 17 V 30 V DC XSK5 AGND Function analogue ground Reference potential of exitation current source for RTD operation XSK6 IS Function outp
11. 5 1 1 8 Display menu option DISPLAY 45 5 1 1 9 Bar graph menu option 46 5 1 1 10 Pipe size menu option 5 2 46 51111 Frequency output menu option FREQUENCY OUTPUT 47 5 1 1 12 Analogue output flow rate menu option ANA OUT FLOW 48 5 1 1 13 Analogue output medium temperature menu option ANA OUT TEMP 48 51114 Quitting the configuration menu 48 54115 Configuration ze RO REFER RE e upa a 50 5 1 1 16 Configuration submenus 51 5 1 2 Parameter selection suqus see Res neue 55 5 1 2 1 Measuring time menu option MEAS 55 5 1 2 2 Limit switch 1 switch on value menu option LS1 ON 55 Limit switch 1 switch off value menu option LS1 OFF 55 5 1 2 3 Limit switch 2 switch on value menu option LS2 ON 56 Limit switch 2 switch off value menu option LS2 OFF 56 5 1 2 4 Scaling factor menu option 56 5 1 2 5 Quitting the parameter selection menu 56 5 1 2 6 Parameter selection menu 58 6 On line Phases awu
12. Electrical Connection nene rtt Rm beanie 16 2 6 2 Installation of electronic control unit 01 18 2 6 21 Mechanical installation RE RE Rand Mem ears 18 2 6 2 2 Electrical connection uon e ops pa Ene E RE uyu aine z 18 2 6 2 2 1 Circuit diagram 1 21 2 6 2 2 2 Electrical connection frequency output version 1 174 22 2 7 Maintenance tafe Q 24 2 7 1 Monitoring Bead CST EX ROBUR 24 2 7 2 Flow Meter FCOT EX RR xU ner ame PR a neon Ss 24 _FL wW Flow Meter 1 vision TABLE OF CONTENTS 3 Normal atmosphere Definitions and mounting instructions 25 3 1 Measulind procedure sarda sce OUR Sees Dee CR E Un SCION EUR Eom Sew eRe Rea 25 3 2 System description iS X Ea a Pd Reds ie 26 3 21 User interfaces RANT ae 27 3 3 Customer calibration e lare e ee be eee aba 29 3 3 1 Options and advantage of customer calibration 29 3 3 2 Special flow and installation conditions 29 3 3 3 Ho
13. Input voltage DC supply voltage terminal XV User interfaces analogue output 1 and 2 terminal XAO signal outputs 2 way or 4 way signal outputs terminal XAH Sensor interface calorimetric monitoring head via safety barriers Keyboard and display keypads liquid crystal display Micro controller system signal processing and monitoring Power supply DC User interface 1 Sensor interface 4 calorimetric Micro controller monitorin g system head User interface 2 Keyboard and display Input voltage DC 19 32 V Keyboard display keypads LC display 2 x 16 digits User interface 1 relay outputs 2 limit values transistor outputs 2 limit values 1 error indication 1 busy signal or frequency output software selected User interface 2 analogue outputs current or voltage Controller system signal processing controlling monitoring parameter memory Sensor interface calorimetric monitoring head fig 13 26 1 Flow Meter FLSW _ ed Definitions and mounting instructions The power supply is physically isolated between power supply input and system power supply output This also applies to the analogue outputs which are physically isolated from each other as well as from the other electronics and the signal outputs The signal output channels are also separate and electrically isolated from the central electronic unit There is no electrical isolation be
14. 15 C The limit conditions defined in chap 4 2 1 shall be observed 5 1 1 4 5 Automatic calibration After the temperature difference has been determined the trim point with the highest number will appear when the first adjustment is made corresponds to the number of trim points selected TRIM POINT The highest flow velocity shall be assigned to that trim point The flow velocity can be set between 0 00 m s and 90 00 m s Before starting the automatic calibration by simultaneously pressing UP and W DOWN the flow velocity at which the trim point shall be determined must have been available at the sensor for more than 10 seconds The heating period required by the measuring procedure is started before the first trim point is set The remaining heat up time is displayed in seconds REST TIME sec Once the heat up period is over the FC01 Ex will start the setting routine for the set flow velocity The calibration time is 20 seconds Note B ating power cannot be correctly determined The display will therefore indicate index quantity xd for constant flow During the calibration time of 20 seconds that quantity should be between 0 10 and 0 10 Upon completion of the calibration the program will return to menu option TRIM POINT with the heating power determined The integer value determined will be flashing on the display After confirmation a selection menu is inserted allowing the calibratio
15. No 20 30 31 60 40 41 Behaviour of the frequency output when the measurement is stopped When the measurement is stopped as caused by priority error and calling the configuration or parameter selection menus the pulses for the quantity already counted will be available Thereafter the output of pulses will be stopped with the frequency output becoming high resistive until the measurement is restarted Behaviour of the frequency output when the content of the totalizer is deleted The content of the totalizer may be deleted by simultaneously pressing UP and W DOWN in the main menu As the frequency output refers to the content of the totalizer although its operation is not depend ent on the content of the totalizer a totalized quantity that is smaller than that set per pulse will not be lost This means that only the content of the totalizer is deleted 47 _FL wW Flow Meter FCO 1 Ex vod ef 5 1 1 12 Analogue output flow rate menu option ANA OUT FLOW This menu option allows adjustment of the flow rate analogue output specifically to the requirements of the entire system Options are OFFSET FS 0 4 20 mA 0 1 5 V 0 2 10 V ZERO initial value 0 20 corresponds to a flow rate of m s FS 100 final value corresponds to a flow rate of m s When entering the initial value the user should observe a reasonable resolution With a flow volume time unit selected
16. Zones 0 and 20 9 2 2 2 Equipment group II category 2 Zones 1 and 21 9 2 2 3 Equipment group II category 3 Zones 2 and 22 9 2 3 Materials used for calorimetric monitoring heads 10 2 3 1 Stainless steel 1 4571 AISI 316 10 2 3 2 Nickel based alloy Hastelloy C4 2 4610 10 2 3 3 Titanium G7 37235 coo ua slau Wix qam anam 10 2 4 Temperature mot D Bad dean ae 11 G8S65 pede EPIS PEE SPD EM Re diui died 11 24 2 DUSl ct fla dea ee ee Kd wa RP 11 2 5 Gable length ois pagaq eoe yao ec EE RUE ce RUD S URL LU ae V 11 2 6 Installation 12 2 6 1 Installation calorimetric monitoring 12 2 6 1 1 Mechanical installation thread mounted monitoring head CST Ex 12 2 61 2 Mounting InStr ctions cc oad E Bab RR UR D ral d 13 2 61 21 Liquid s vic etd epe 14 2 61 2 2 08569 oe aa 15 2 6 1 2 3 Depth of 15 2 6 1 2 4 am xc UR aa s 15 2 6 1 3
17. and for a short time This may be the case for the surroundings of zones 0 and 1 as well as areas around flange connections or pipe lines in closed areas For zone 22 it could also be surroundings of dust containing apparatus protective systems and components which might lose dust from leakages and build up dust deposits e g mill rooms clean air side of filters in outlet air pipes Information about zones and categories in accordance with EN 1127 1 2011 detailed for inflammable gas vapour and dust EN 60079 0 2012 rules for avoid danger by explosive atmosphere and classifica tion of explosion protection zones with example library BGR 104 Explosionsschutz Regeln EX RL FL W Meter ECO 1 Ex eee Definitions and mounting instructions 2 3 Materials used for calorimetric monitoring heads The following information contains general recommendations which must be rechecked by the user for the individual application 2 3 1 Stainless steel 1 4571 AISI 316 Ti The standard monitoring head material is stainless steel 1 4571 an austenitic acid resisting stainless steel that is commonly used throughout industry Manufacturers claim it also withstands oxidizing organic and anorganic acids and partly even reductive media The resistance of this stainless steel should however be verified by the user particularly when it is used in medium mixtures that may from time to time be exchanged with cleansing agents Its chemical
18. curve an already existing curve old curve would be deleted If the new curve is completely entered by hand it is necessary to enter the TK reference temperature see 5 1 1 4 7 when quitting the menu The TK reference temperature is the medium temperature at which the curve was established under normal operating temperature conditions If the calibration of a new curve is made selecting temperature differences which are essentially smaller than the values recommended the zero point on the characteristic curve will be displaced towards smaller control variables It may happen then that the first trim value is below or on the preloaded zero point value in which case the software will provide that the initial values for further control variables are below the established preceding value 35 FLG W Meter 1 vision of customer calibration 4 2 5 2 Old curve In this operating mode each trim point can be corrected without jeopardizing other existing data Changes are limited by the general calibration conditions This means that the values assigned to a trim point can never be higher than the values assigned to the trim point above or lower than the quantities assigned to the trim point below Caution A Changes expansions of old curves must only be made whilst maintaining the temperature differential 4 2 6 Transfer of C and T values Re establishment of T value As the monitoring heads are factory preset
19. ee 59 6 1 Switch on performance eus eL ae ua a 59 5 2 Measuring CUCIG aie bre a CURE RC NAR URN HER xam a kai d 59 6 2 1 Operating dala ode etre E d ATA SUAM eee a 59 6 211 Measured value s e hex xe e a ea ey ERR Xen Ra En d 59 6 2 1 2 Peak values menu option PEAK VALUE MIN PEAK VALUE 61 6 2 1 3 Last error menu option LAST 61 6 2 1 4 Main egeat 62 PTT 63 44 Test and 5 63 group i EET 63 14 2 Priority xgroup Il BRR RUP a Rd RE E a Rus 63 FA Priority Group llli u rou er ER dee Fu YOU s 63 G2sPOtemtlal Errors c tees oe toes a wi oes o ANS re ue a 64 _FL wW Flow Meter 1 vision 8 Technical data u khen s mas x we s kamas a RR ea o 66 8 1 Ambient conditions FCOT Ex 2 oen ke Cas RE eR eas 66 8 2 9 ER RR EXER Ede A Rs PT 66 8 9 Electrical Pade Eee fed RR ea are 66 8 34 Power Supply GUY NR REA Eas 66 8 3 1 1 DG voltage s pply s iu seeding sees mc RE MER
20. for air or water their C and T values apply only to those media When the heads are used in gases or gas mixtures similar to air see table page 32 these values can be transferred The same applies to heads monitoring water In that case the temperature difference water 3 3 C air 10 5 C must be set in the CUSTOMER TRIM menu to calibrate a characteristic curve The following medium characteristic quantities should however harmonize as far as possible a density b specific heat c When other media are used the C value may be transferred but the T value should be separately esta blished and set for recording the new curve at T 50 4 2 6 1 Establishing the T value general The T value should be established at a velocity in the upper third of the calibration range When recording the characteristic curve the temperature and the control variable at a trim point located in the upper third of the characteristic curve 70 80 Vmax should be noted T1 C medium temperature when recording the new curve Vu Essen digits control variable Vr m s flow velocity at temperature T1 Control variable Yr is then established at the same flow velocity Vr ideally at the highest medium operating temperature Conditions T2 T1 The following quantities are recorded T2 C upper setting temperature of the medium digits control variable with T2 36 FCO1 Ex Flow Meter FLSW _ M
21. resistance also depends on temperature flow rate and concentration of the medium Stainless steel owe their resistance to rust mainly to their alloy combination with chromium the formation of chromic oxide on the steel surface resulting in a passive state Contamination deposits on the surface or foreign rust may however neutralize the passivity Therefore care should be taken to keep the surfaces clean Stainless steel heads must not get in contact with steel parts other than stainless steel or with che mically dissimilar metals as this would cause electrolytic corrosion 2 3 2 Nickel based alloy Hastelloy C4 2 4610 Hastelloy 2 4610 is a material with a chemical resistance generally exceeding that of stainless steel It is particularly suitable for alkaline media pH gt 7 It should however be examined for suitability for each specific application using resistance tables and pragmatical values 2 3 3 Titanium G7 3 7235 Titanium is characterised by non magnetizability and excellent corrosion resistance particularly against oxidising media The resistance is due to the fact that the surface of titanium immediately builds up an oxidation layer in presence of oxidation means protecting the material beneath against corrosion The technological characteristics of low alloy titanium G7 are equal to those of plain titanium of the same strength category Adding approximately 0 2 palladium does not influence the mechanical properties but a
22. the counter is switched on delayed or set to zero after it has been switched on 23 FL W Meter 1 vision Definitions and mounting instructions 2 7 Maintenance 2 7 1 Monitoring head CST Ex The monitoring head is virtually maintenance free with media which do not collect on the sensors In case of deposits on the sensors these have to be cleaned at the necessary intervals Avoid damaging the sensors during cleaning as the explosion protection depends on the intactness of the sensor coating 2 7 2 Flow Meter 01 The Flow Meter 01 is maintenance free With regard to software the device is fitted with a wide range of checking and testing functions described in chapter 7 24 FCO1 Ex Flow Meter FLSW _ vision Definitions and mounting instructions 3 Normal atmosphere Definitions and mounting instructions 3 1 Measuring procedure The calorimetric measuring procedure is based on the physics of heat dissipation i e a body with a temperature higher than its surroundings supplies a medium flowing past that body with energy in the form of heat The amount of energy supplied is a function of temperature difference A9 and mass flow Flow Meter FC01 Ex operates on the CTD Constant Temperature Differential method The temperature difference A9 between the two sensors is kept constant and the mass flow is deter mined by measuring the calorific power Fig 12 is a schematic
23. 0 197 hydrogen H2 25 10 5 0 08991 3 42 hydrogen bromide HBr 25 10 5 3 646 0 086 hydrogen chloride HCl 25 10 5 1 639 0 191 hydrogen fluoride HF 25 10 5 0 8926 0 348 hydrogen iodide HI 25 10 5 5 799 0 054 Class 2 We currently don t have much experience with the use of such media but generally the FCO1 Ex can certainly be used Class 3 4 C 20 C a tap water 3 3 3 1 1 high purity water 3 3 3 1 1 seawater 3 3 3 1 03 1 b water glycol 3 3 5 11 2 5 1 32 FCO1 Ex Flow Meter FLSW _ Mvision of customer calibration Assignment graph Medium Flow velocity Temperature differential Medium Class 1a A02 10 5 12 6 C Class 1b A91 A02 i Class 2a 91 2 Class 2b A91 A82 C i i 1 i 1 Class 3a A01 3 8 C A02 3 3 C i i Class 3b A01 4 C A02 3 5 C i id E 1 1 i is i 1 0 1 3 10 15 20 25 MBE upper measuring range value MBE V m s 33 FLG W Meter 1 vision of customer calibration 4 2 2 Trim point selection number and position Between 2 and 20 trim points can be set They are addressed in a downward sequence to ensure the user can recognize the trim points still available by the trim point index indicated A reasonable distribution on the characteristic curve depends on the desired accuracy the required meas
24. 0 20 0 00 After trim point 10 has been set at 1 80 m s and the velocity has actually been controlled accordingly automatic calibration is started by simultaneously pressing A UP and W DOWN The following value was determined for flow velocity 1 80 m s after completion of the heating up period and the calibration Trim point V m s Y 1 80 35400 1 60 1 40 1 20 1 00 0 80 0 60 0 40 0 20 0 00 NI V This value represents the heating power required to measure the velocity of 1 80 m s After this value has been transferred trim points 9 1 should be processed the same way The Y values shown in the following table were measured for trim points 9 1 74 FCO1 Ex Flow Meter FLSW vision Trim point V m s Y 10 1 80 35400 9 1 60 35267 8 1 40 35158 7 1 20 35063 6 1 00 34890 5 0 80 34668 4 0 60 34347 3 0 40 33846 2 0 20 32957 1 0 00 24635 The medium temperature at which the calibration was made here TRIM IS READY TEMP 82 8 C is indicated on the display after the last trim point The CUSTOMER TRIM procedure is now completed Before quitting the submenu the calibration data shall be permanently stored by pressing M Verification of the solution In order to verify the curve determin
25. 195 g zg s w 001 0822 3219 31nNIW 3ull1 ioOalsAvldslq 40 MNOTd dAL GaNOO3S atll1 209195 193136 AV1dSIG 300 JuoO S W S4 9 0 98 3 LNO WAL LNO S W 90 OH3Z 9 0 0L 0832 LNO WAL LNO 63 0 195550 54 02 195550 LNO WAL LNO gt nu uiqns nueuuqns uonoejes nueuuqns 409 snueuiqns 10 FCO1 Ex Meter FLSW _ wie PO ri 5 1 2 Parameter selection After configuration of the FC01 Ex in conformance with its application configuration menu it is possible to set parameters e g limit values During parameter setting measuring operations are not possible see Appendix 1 The following parameters may be set in the Parameter selection menu 5 1 2 1 Measuring time menu option MEAS TIME The measuring time can be set between 1 and 30 sec referring both to flow rate and medium temperature The effect of the measuring time may be compared to that of a low pass filter it is used to determine the average of the last measured values after each measurement
26. 2 Setting of the T characteristics T range 01 99 5 1 1 3 Medium selection menu option MEDIUM SELECT This menu option is used to select the medium in which the Flow Meter is used The following media are called GAS FLUID 5 1 1 4 Custom designed calibration menu option CUSTOMER TRIM 5 1 1 4 1 Access to menu option CUSTOMER TRIM Access to the calibration menu is provided by answering CUSTOMER TRIM with yes and entering the fixed 3 digit ACCESS CODE Note ACCES CODE to be entered 987 Entering an incorrect code will cause skipping to the next option of the configuration menu another access to CUSTOMER TRIM can only be started after running through the entire configuration menu 41 W Meter FCO1 Ex vieron 5 1 1 4 2 Old curve New curve If the inquiry about the CHARACTERISTIC of the curve is answered by new the selected trim points are assigned to default data see 4 2 5 If a filed curve needs to be corrected or expanded the above inquiry should be answered by old In that case the trim points already stored will not be affected This menu option does not apply if a custom designed curve has not yet been entered 5 1 1 4 3 Number of trim points The number of trim points NUMBER OF TRIM POINTS can be selected between 2 and 20 see chap 4 2 2 5 1 1 4 4 Determining the temperature differential The TEMPERATURE DIFFERENCE setpoint be set at 3 C lt A9 lt
27. ECT and the medium FLUID in submenu MEDIUM SELECT before making the custom designed calibration Enter 1023 marked on sensor as C value to define the sensor specific tolerances The T value is a code for the temperature sensitivity of the sensor and needn t be taken into account for this applica tion The preset value of 50 is transferred After entering and confirming the sensor specific data press A UP and W DOWN in order to branch into menu CUSTOMER TRIM The settings required for the custom designed calibration start after the 3 digit code ACCES CODE see chap 5 1 1 4 1 has been entered As an already filed custom designed curve has to be completely overwritten the inquiry about the CHARACTERISTICS of the curve shall be answered by new In that case the trim points selected are pre assigned to data see chap 4 2 5 Enter 10 as the NUMBER OF TRIM POINTS by pressing A UP and W DOWN The temperature difference setpoint TEMPERATURE DIFFERENCE is shown in the table of chap 4 2 1 where a temperature difference of 3 3 C is indicated for water in this flow velocity range As in this example a new custom designed curve is to be determined it is necessary to assign the max flow velocity 1 80 m s to trim point 10 The remaining trim points 9 1 are automatically and linearly assigned as follows 73 _FL wW Flow Meter 1 vos e m Trim point V m s 1 80 1 60 1 40 1 20 1 00 0 80 0 60 0 40
28. EY UR IRR 67 BA Analogue ux aired a x a 68 8 4 1 Voltage output V1 5 V 68 8 4 2 Voltage output V2 10 V u un a xa RR perde E RR ER E 68 8 4 3 Current output C1 20 5 69 8 5 Signal OUtpuls etat etre Eod RAE Dd m pu ode 69 8 5 1 Relay outputs R2 change over contacts DC or AC switching voltage 69 8 5 2 Transistor outputs DC switching 70 5 6 Metrological data RES RESET RES KSEE EES eS 71 8 6 1 Mass flow 71 8 6 2 Temperature measurement 71 8 6 3 01 Electronic control unit Rar nee 71 8 7 Sensor interface Electrical data 72 2 SCR D ia 73 9 1 Example 1 Calorimetric monitoring head Medium water New 73 9 2 Example 2 Distribution of trim 79 Appendix 1 Performance of the digital and analogue outputs during the operating and error 81 Appendix 81 FCO1 Ex FlowMeter FLSW _ vison _FL wW Flow Meter 1 voc ef 1 Description T
29. FLEW VIS ION Flow Meter FCO1 Ex USER HANDBOOK M_FC01 EX_0614_e FLG W Meter FCO1 Ex vision aF Please follow these installation and adjustment instructions carefully Failure to comply with these instructions or misuse of this equipment will void your war ranty coverage The instructions cover software version 2 40 Equipment installation connection and adjustment by qualified personnel only Failure to comply or misuse of this equipment could result in serious damage both to the equipment itself and to the installation FlowVision is unable to accept responsibility for customer or third party liability warranty claims or damage caused by incorrect installation or improper handling resulting form non observance of these instructions Monitoring heads not freely interchangeable with the FC01 Ex The assembly of mating parts must be maintained Electronic control unit and monitoring head are always packed and dispatched in pairs FCO1 Ex FLSW _ s s vision Table of contents ee when hela ire wie 8 2 Ex atmosphere Definitions and mounting instructions 8 2 1 Information on explosion protection 8 2 2 Classification ZONES sopra ro fos eyes ERE eee 9 2 2 1 Equipment group category 1
30. GRAD FAHRENHEIT F KELVIN All other entries relating to the medium temperature limit value analogue output etc refer to the unit selected there When the temperature unit is changed all configuration and parameter data relating to medium temperature will automatically be converted 5 1 1 8 Display menu option DISPLAY SELECT The 01 enables the user to define certain points of the display When the first line of the LC display in the main menu indicates the flow rate in the unit selected as well as the medium temperature in C F or K it is possible to select the 2nd line from the following menu options see chap 5 1 1 16 BARGRAPH Totalizer LITRE SECOND 1 5 LITRE LITRE MINUTE l min METRE m METRE HOUR m h FEET F GALLONS MINUTE GALLONS US GALLONS Where totalizer function has been selected the totalizer will start at zero counting in the unit selected litre m or gallons 45 W Meter FCO1 Ex vieron When the display changes from to litre or gallons or from litre or gallons to m the value already counted will be converted The content of the totalizer is deleted by simultaneously pressing UP and DOWN or when the max display value 99999999 9 m or gallons is reached In both cases the totalizer will restart from zero Caution The content of the totalizer is deleted in the event of power failure or disco
31. OL ON 20413 NIN NIN 330 330 330 330 OG ON 10413 NIN NIN 330 330 330 NIN NIA 330 330 340 x x NO NO x x NIN NIN 330 340 330 poled NIN NIW 330 330 340 330 ON 4045 NIN NIN 340 330 330 330 ON 4045 NIN NIN 340 330 330 330 10414 NIN NIN 340 330 330 330 ON 40414 NIIN NIN 330 330 330 330 ON 1043 NIIN NIW 330 340 340 340 1591 dn uelS XVIN NO NO NO NO 19591 ine eae ae Wo MAD gt pue 5 LON 40419 pue eui sindino pue u jo xipueddy 81 APPENDIX W Flow Meter FCO1 Ex 1 2 0 2 0S 1 LL 1 vL SL 9L ZL 81 6L 0 LA zH u61p 5 Ht LNIOd Wid 1 O rad A eigen 82 FLSW_ VISION 1 Flow Meter 83 FlowVision GmbH Im Erlet 6 Telefon 0049 9187 9 2293 0 90518 Altdorf Telefax 0049 9187 92293 29 www flowvision gmbh de info flowvision gmbh de
32. The set measuring time does not influence the measuring rate and display up date 5 1 2 2 Limit switch 1 switch on value menu option LS1 Limit switch 1 switch off value menu option LS1 OFF Depending on the configuration see configuration menu limit value 1 may be set either for flow rate or medium temperature The limit value may be set over the entire measuring range and is always related to the display value Limit switch up date is by measuring rate independent of the set measuring time The hysteresis is determined by entering different switch on and switch off values Its magnitude should be reasonably adjusted to current operating conditions A specific definition of the operation closed current or open circuit principle may be dropped by separately entering the switch on and switch off value of the limit switch because the definition is deducted from the switch on and switch off value Example 1 Switch on value lower than switch off value switch on value switch off value i measured value i ON hysteresis switching condition OFF imi i of limit switch 1 fig 16 55 FL W Meter FCO1 Ex vieron Example 2 Switch on value higher than switch off value switch off value switch on value measuring value 0 ON switching condition hysteresis of limit switch 1 OFF
33. W with zero flow voltage outputs P 4 8 W with max flow end of measuring range voltage outputs Insulation voltage supply input central electronic unit 2 500 V 67 _FL wW Flow Meter FCO 1 Ex VIS TECHNICAL DATA 8 4 Analogue outputs The analogue outputs are physically isolated from each other and from the electronic control unit 01 Pin selection for analogue outputs V1 V2 and C1 Signal name NC Analogue output 1 flow Reference ground 1 Shield for analogue output 1 Shield for analogue output 2 Analogue output 2 temperature Reference ground 2 NC NC not used Analogue output 1 ANA OUT FLOW flow output Analogue output 2 ANA OUT TEMP temperature output Shield ungrounded apply one side only Pin XAO 1 O WD Insulation voltage analogue output analogue output 500 V analogue output central electronic unit 500 V shield potential supply voltage of analogue output lt 48 V DC 8 4 1 Voltage output V1 5 V FS Signal voltage range Us 0 V to 5 V 2 FS Max signal ripple dUs 5 FS Min admissible load resistance 1 Max admissible load capacity 1 nF Max admissible load inductance Li 100 nH Short circuit proof yes XAO between all terminals 8 4 2 Voltage output V2 10 V FS Signal voltage range Us 0 V to 10 V 2 FS Max signal ripple dUs 5 FS Min admissible load resistance 2 Max a
34. Y 4 x 2 x 0 2 mm cable recommended Pin No Signal name Function 1 ERROR E summarized error indication emitter terminal al m ERROR summarized error indication collector terminal 3 BUSY PULSE E availability signal or frequency output emitter terminal BUSY PULSE C availability signal or frequency output collector terminal 5 LIM2 E limit value 2 emitter terminal LIM2 C limit value 2 collector terminal T LIM1 E limit value 1 emitter terminal 4 LIM1 C limit value 1 collector terminal 55 Apply shield on one side only VISION 1 Flow Meter FLSW EX ATMOSPHERE Definitions and mounting instructions 2 6 2 2 1 Circuit diagram FC01 Ex Version 24 V open collector outputs CO exeo exo CK OOO XTF XSK XV Y Z ASINd ASNG XAO XAS 5 8 0 Z 0X2XF QN9S A D pj e OAM ON9LYNY TT LOVNV 50 cA LA sindino Version 24 V relay outputs emitter terminal C collector terminal recomme
35. cated will be increased and reduced respectively by one numeral skip The longer UP or W DOWN are pressed the faster the increase or reduction Transfer of entries Pressing M MODE transfers the set value or the selected menu option to a volatile memory A per manent transfer of settings and values is only effected when quitting the menu after a plausibility check of all entries Afterwards the data will be available even after repeated on off operation of the FCO1 Ex Deleting data Selected data such as MIN and MAX values can be deleted or reset by simultaneously pressing A UP and V DOWN 40 FCO1 Ex Meter FLSW _ wie ren 5 1 1 Configuration The CONFIGURATION menu serves to adjust the FCO1 Ex to its application within the entire system During system configuration measuring operations are not possible see Appendix 1 Configuration possibilities are 5 1 1 1 Selection of monitoring head menu option SENSOR SELECT The menu covers only one calorimetric monitoring head type so that it is not necessary to enter further details 5 1 1 2 Monitoring head data menu option SENSOR CODE To operate the FCO1 Ex it is necessary to set sensor specific characteristics These characteristics are specified by the sensor code which together with the monitoring head type number is marked on the monitoring head housing Setting is menu driven in two steps 1 Setting of the C characteristics C range 700 1300
36. ccount In special cases or in case of doubt the determination is done by the supervising authorities 2 2 1 Equipment group Il category 1 Zones 0 and 20 Equipment of this category is for use in areas where an explosive atmosphere consisting of gas vapour mist zone 1 or of inflammable dust air mixtures zone 20 is present continuously or for long periods Normally this applies only to the inside of containers or apparatus vaporizers pipe systems etc In these zones only electrical apparatus must be used carrying an EC type test certificate issued by an acknowledged authority and only those which have been explicitly approved for these zones 2 2 2 Equipment group Il category 2 Zones 1 and 21 Equipment of this category is for use in areas where an explosive atmosphere consisting of gas vapour mist zone 1 or a cloud of inflammable dust in air zone 21 is likely to occur This may be the case for the surroundings of zones of category 1 the surrounding area of filling or draining systems For zone 21 these are also areas where dust deposits occur and during normal operation may build up an explosive concentration of inflammable dust in combination with air 2 2 3 Equipment group Il category 3 Zones 2 and 22 Equipment of this category is for use in areas where an explosive atmosphere consisting of gas vapour mist zone 2 or a cloud of inflammable dust in air zone 22 is unlikely to occur If it does it would be infrequent
37. described within the menu Up to 20 trim points can be assigned to the flow characteristic curve i e the calibration range This distribution of the trim points being determined by the user within certain ranges of the flow characteristic curve resolution and accuracy are determined by that distribution By extrapolation the measuring range is expanded beyond the max flow value by 10 of the upper trim point The lower trim point can be optionally set between the zero point of the characteristic curve and the last but one trim point If the setting is selected above the zero point the characteristic curve will be extrapolated by 10 of the measuring range below the lower trim point or to the zero point The limit values and the analogue outputs can be set or scaled between these limits 3 3 1 Options and advantage of customer calibration Custom designed calibration allows for anomalies within medium or system variations and the high repeatability of the measuring procedure makes it possible to measure and indicate flow conditions with a high degree of accuracy This requires that a higher order measuring unit or reference quantity be available from which the FCO1 Ex is then calibrated and set The characteristic curve may be determined for each individual requirement or it can be transferred from one system to another with resultant lower accuracy Note A suitable reference instrument is required in each case Adjustment
38. diagram of a CTD method based sensor Two temperature sensitive resi stors sensor elements RS and RM are immersed in the medium Sensor RM assumes the temperature of the medium whilst heater resistor RH heats element RS to temperature 95 As function of the medium the temperature differential OA 85 is preselected as a reference variable by the CTD control with PI characteristics and is kept constant The required calorific power is a function of mass flow so that the control variable y of the control can be used for evaluation Major benefits of this method are e Fast response particularly to sudden flow standstill Medium temperature measurement providing optimum temperature compensation Increased safety because the sensor cannot be overheated during the standstill The flow rate is determined by mass flow RM 969 Po o 9 9 a di medium RS m RH lt Kp gt Kp Kp Tn control loo x xd y S I POE Ou l w m mass flow xd system deviation w reference variable A control variable x actual value 95 1 heater current fig 12 25 Meter ECO 1 Ex vision Definitions and mounting instructions 3 2 System description The system comprises the following hardware functional modules
39. dmissible load capacity 1 nF Max admissible load inductance Li 100 nH Short circuit proof yes XAO between all terminals 68 FCO1 Ex Flow Meter FLSW _ vision 8 4 3 Current output C1 20 mA FS Signal current range ls 0 mA to 20 mA 2 FS Max signal ripple dls 5 FS Min admissible load resistance R 0 Q Max admissible load resistance 250 Q 8 5 Signal outputs The signal output channels are physically isolated from each other and from the electronic control unit FCO1 Ex 8 5 1 Relay outputs R2 change over contacts DC or AC switching voltage Pin selection Signal name Pin XAH Limit Switch 1 shield 1 Limit Switch 1 N O 2 Limit Switch 1 common 3 Limit Switch 1 N C 4 Limit Switch 2 shield 5 Limit Switch 2 N O 6 Limit Switch 2 common 7 Limit Switch 2 N C 8 Resistive load Max admissible switching capacity 50W Max admissible switching current 1A Max admissible continuous current 1A Max admissible switching voltage 50V Contact life at 1 A 3 x 10 cycles Inductive load with safety circuit AC voltage Max admissible switching capacity 125 VA Max admissible switching current 1 25A Max admissible continuous current 1 25 Max admissible switching voltage 100 V Contact life cos 0 5 2 4 x 10 cycles Insulation voltage signal contact central electronic unit 500 V signal contact signal contact 500 V 69 Mete
40. e special temperature limit must only be exceeded in rarely occurring operating troubles 2 4 2 Dust The labelling temperature T100 C T130 C depends on the maximum admissible medium tempe rature see table in special conditions A Therefore the user has to take care that the temperature limits be expressly stipulated by means of the determined ignition temperature to the method stipulated in EN 50281 2 1 of a cloud of dust or the smouldering temperature of a dust layer of his particular medium see EN 50281 1 2 electrical apparatus for use in areas with inflammable dust para 6 temperature limitation 2 5 Cable length The monitoring head CST Ex is connected to the flow monitor 1 by means of an 8pole paired connection cable with overall shield The shield is grounded on both sides on the potentially explosive and the non hazardous side to prevent inductive interference To prevent any potentially inflammable currents from flowing over the shield it is imperative to observe the following A Installation has to ensure to a high degree that there is equipotential bonding between each end of the circuit In order to ensure that the shield will not become gt 1 Ohm and induce potential differences it may be necessary to ground the shield at additional positions If this is technically not possible the max cable length has to be restricted to 50 m ssee DIN EN 60079 14 2003 German version Electrical installations
41. ed again set the flow velocity at the various trim points and compare it to the values indicated by the FCO1 Ex during the measuring operation Test values are Trim point V m s Test data Deviation MBE 0 7 78 9 3 89 8 1 11 7 1 11 6 0 56 5 0 00 4 0 56 3 1 11 2 0 56 1 0 56 The verification of the trim points indicates that trim point 10 is outside the tolerance required One of the reasons may be that the flow velocity varied when point 10 was set To increase the accuracy at a velocity of 1 80 m s that trim point should be redetermined MBE upper measuring range value 75 _FL wW Flow Meter 1 vod ef Correction of the characteristic curve To correct a custom designed curve branch into menu CUSTOMER TRIM the same way as when determining the curve The inquiry about the CHARACTERISTIC shall be answered by old as the curve filed is largely maintained with only point 10 being corrected other data trim points temperature difference remain unchanged and are transferred by press ing M The set flow velocity 1 80 m s is confirmed at trim point 10 and the automatic calibration as described under Implementation is started The Y value for a flow velocity of 1 80 m s is shown in the following table Trim point V m s Y 10 1 80 35346 The corrected value is transferred All other calibrat
42. ence ground shield ground 2 Uv positive pole of supply voltage 3 Uv negative pole of supply voltage XTF Keyboard release Connection by 3 pole connector factory wired Jumper 2 3 inserted keyboerd blocked _FL wW Flow Meter FCO 1 Ex Sie e m Definitions and mounting instructions XAO Analogue outputs Connection by 8 pole connector 1 5 mm 2 x 0 25 mm cable recommended Pin selection for analogue outputs V1 V2 C1 Pin No Signal name Function 1 NC none 2 ANAO1 analogue output 1 flow 3 7 ANA1GND reference potential for analogue output 1 4 SGNDA1 shield ground for analogue output 1 ungrounded 5 SGNDA2 shield ground for analogue output 2 ungrounded 6 2 analogue output 2 temperature 7 ANA2GND reference potential for analogue output 2 8 NC none XAH Limit value signal outputs relay outputs change over contacts Connection by 8 pole connector Amax 1 5 mm 3 x 0 38 mm cable recommended Pin No Signal name Function 1 SGNDL1 shield ground 1 2 LIM1 non inverted signal output 1 N O 3 m LIM1COM common change over input 1 4 L LIM1 inverted signal output 1 N C 5 SGNDL2 shield ground 2 6 LIM2 non inverted signal output 2 N O 7 E LIM2COM common change over input 2 81 L LIM2 inverted signal output 2 N C XAH Signal outputs transistor outputs NPN freely connectable Connection by 8 pole connector Amax 1 5 mm LifYC
43. er to facilitate operation the last error is stored in a non volatile memory The stored error may be retrieved and deleted in the main menu If a combination of errors occurs simultaneously they are indicated or stored in the error memory observing the following sequence Priority group Error Cause Rectification No 1 No system parameters available return to supplier No 2 Incorrect test sum of parameter return to supplier memory No 3 Incorrect test sum of program return to supplier memory No 4 Incorrect test sum of data return to supplier memory No 5 Internal controller error return to supplier Priority group Error Cause Rectification No 50 No adjustment data available carry out custom designed adjustment No 10 Sensor not connected or cable check cable or replace sensor between 01 and sensor defective or defective sensor No 21 Medium temperature too high 64 FCO1 Ex Flow Meter FLSW _ wie PO ri Priority Error Cause Rectification No 20 Medium temperature too low No 30 Over limits of flow rate No 31 Measuring range of flow velocity below limits V lt 1st trim point 10 No 60 Assignment of quantity per pulse too low No 40 Controller error oscillator watchdog Admissible EMC levels may have been exceeded No 41 Controller error watchdog timer Admissible EMC levels may have been exceeded E
44. erating system Clear menu driven control via keyboard and display enables easy definition of parameters and configuration This provides high system flexibility making the FCO1 Ex the optimum solution for a wide variety of measuring monitoring and display tasks All functions are distributed on the three following menu levels See Appendix 5 listing all functions available MAIN LEVEL MENU CONFIGURATION LEVEL MENU PARAMETER LEVEL MENU Touch switches Setting and configuration is by means of three front touch switches M MODE A UP and Y DOWN Caution A 01 can only be set or operated when connector XTF keyboard release is removed SS FLW VIS Lon Z UP DOWN FC01 Ex Flow Controller 22 fig 14 39 W Meter FCO1 Ex vieron Menu paging The next menu option is selected by pressing M MODE forward paging Pressing M MODE after the last menu option will cause skipping to the first option of the menu Calling a menu option Simultaneously pressing UP and W DOWN calls the selected menu option or causes skipping to the selected submenu Entry of numerals Some menu options require numerical values to be entered After selecting the appropriate menu option the value indicated can be changed by pressing UP or Y DOWN Each time A UP or W DOWN are pressed the value indi
45. eration Rx sawas qawa 39 5 1 Operating Systemie reren a bead EE and per Bate artes are 39 5171 Configuration REOR Mee hapa MORE RUP RUE apa n 41 5 1 1 1 Selection of monitoring head menu option SENSOR SELECT 41 5 1 1 2 Monitoring head data menu option SENSOR CODE 41 5 1 1 8 Medium selection menu option MEDIUM SELECT 41 5 1 1 4 Custom designed calibration menu option CUSTOMER TRIM 41 5 1 1 4 1 Access to menu option CUSTOMER TRIM 41 5 1 1 4 2 Old curve New 42 5 1 1 4 3 Number of trim points 42 5 1 1 4 4 Determining the temperature differential 42 5 1 1 4 5 Automatic 42 5 1 1 4 6 Manual calibration 42 1 FlowMeter FLSW 5 1 1 4 7 Calibration temperature 43 5 1 1 4 8 Storing the characteristic curve 43 5 1 1 4 9 Potential errors during the calibration 43 5 1 1 5 Limit switch combinations menu option LIMIT SWITCHES 44 5 1 1 6 Flow rate unit menu option FLOW 45 5 1 1 7 Medium temperature unit menu option TEMP UNIT 45
46. esultant high non linearity By setting the interpolation trim points in high density the error can be kept below 1 over wide distances of the measuring range Another influencing factor is the temperature difference selected See chap 4 2 1 3 3 4 How to achieve the full scale range As the trim points can be optionally distributed in a fixed sequence on the characteristic curve together with the appropriate selection of the sensor temperature that part of the curve which is most important for the application can be given a particularly high resolution Note The accuracy is a function of how the trim points are density distributed See chap 9 Examples 3 3 5 Pin point adjustment selective accuracy If one or several flow values e g flow limits cooling power limit etc are particularly important for the system they can be assigned to one trim point each to achieve a high degree of dependability and accuracy in compliance with the control criteria 3 3 6 Reproduction of precise measuring instruments The customer calibrated Ex version of the FC01 allows the user to reproduce expensive measu ring instrument data in his characteristic curve Thus expensive measuring instruments need only be purchased if at all 3 3 7 Use of standard monitoring heads separate heads for gases and liquids Monitoring heads are not freely interchangeable with the FC01 Ex i e in the event of a failure the complete pair monitori
47. eter Min cross section for protected installation is 1 5 mm2 for unprotected installation 4 mm2 Hand tighten connector of the signal cable to the monitoring head 4x2x0 75 mm _ 9 o 6 oc o ul Ble 2 8 B 5 5 5 QD PA al m au 28206 9 800 2 5 Elo 9 5 5 515 Q Ed S E 5 N 5 lt e SB 8 25 2 SIS 2 2 S Sls Pa s 5 5 8 a 0 0 E AES s 54 0 5 mm2 yellow green gt ee 5 S E 55 5 3 5 5 S AAC bee XV XSK XTF 4 g Z El 5 2 te x identical with 9002 77 093 040 001 fig 6 FL W Meter FCO1 Ex eee Definitions and mounting instructions 2 6 2 Installation of electronic control unit 01 2 6 2 1 Mechanical installation The enclosure is installed by 4 retaining screws The blue strips over the screws should be removed to allow the front cover to be eased out of the enclosure The surface mounted enclosure meets protection degree IP54 PG9 M16 PG11 M20 D 240 120 G13 5 blue 90 PG11 M20 fig 7 2 6 2 2 Electrical con
48. eter in menu option PIPE SIZE comprising pipe diameters from 10 0 to 460 0 mm 46 FCO1 Ex Meter FLSW _ vision 20 C 21 C 25 C 29 C 30 C i gt pod bc 152 ON fig 15 5 1 1 11 Frequency output menu option FREQUENCY OUTPUT The totalizer function of the FCO1 Ex has been expanded by the output of proportional quantity pulses The function can only be displayed by version FC01 Ex U1T4 open collector outputs The proportional quantity pulses have been determined as follows pulse quantity totalizer Example 1 pulse 10 0 litre The frequency output will supply 1 pulse per 10 litres totalized quantity When the quantity proportional pulses are assigned the frequency of the frequency output must no exceed 10 Hz The limits that can be displayed are determined by the flow velocity range and the pipe diameter Potential setting range of the frequency output 1 pulse per 0 1 999 9 Litre m Gallons Behaviour of the frequency output when the max frequency is exceeded The max frequency being exceeded will not cause the measurement to stop but will rather cause the error output to signal error 60 on the display This error is included in priority group If a combination of priority errors occurs simultaneously they are indicated or stored in the error memory observing the following sequence Error
49. eturn to configuration menu 51 _FL W Meter FCO1 Ex vision OPERATION CUSTOMER TRIM v yes yes CHARACTERISTICS M gt old A or V gt new _ o NUMBER OF TRIM V setnumberof POINTS trim points 2 TEMPRATURE ud set temperature DIFFERENCE difference ae yes TRIM IS READY M END STORE D ATA amp or PORE eS M yes Aor Y DATA M NEXT TRIM POINT or v BACK y TRIM POINT 1 DATA PLAUS V m s Y BACK set V m s no yes Calibr data plausible switch and TRIM ACTIVE wait until calibration is completed N A or flashing mode a flashing if value no ERROR can be set mnro PUSH Aor Y onlyif calibration data yes are available Return to menu calling 52 VISION OPERATION 1 Flow Meter FLSW lt JuoO
50. he Flow Meter 01 is used for stationary measuring control and indication of flow velocity flow rate and medium temperature of liquid gaseous and dust media with evaluation of the measuring data of the calorimetric monitoring head CST Ex with separate EC type examination certificate In addition the FCO1 Ex provides power to and processes output signals from the intrinsically safe type CST Ex monitoring head Connections between the intrinsically safe area and the non intrinsically safe area are via safety barriers The FCO1 Ex is intended for the installation outside the hazardous area 2 Ex atmosphere Definitions and mounting instructions 2 1 Information on explosion protection Safety barriers are installed between the Flow Meter FCO1 Ex and the monitoring head CST Ex They are designed according to the directives of the European standards EN 60079 0 2012 EN 60079 11 2012 and EN 60079 15 2010 to type protection 3 1 Ex nA ia Ga IIC T4 Gc II 1 D Ex ia Da They bear the EC TYPE EXAMINATION CERTIFICATE number PTB 01 ATEX 2053 X The monitoring head CST Ex is an intrinsically safe equipment It has been designed for use in potentially explosive atmospheres to directive 94 9 EC and is meant for use in applications of the equipment group II category 1 gas zone 0 or dust zone 20 It has been designed according to the European standards EN 60079 0 2012 EN 60079 11 2012 and EN 60079 26 2007 type of protection
51. he automatic control variable determination in menu TRIM ACTIVE When the FC01 Ex has determined the new Y value it is displayed and recorded as it is needed for subsequently calculating the T value Temperature T2 please note down which will also be included in the calculations is displayed before the calibration menu is quitted Then quit the menu without storing the data A UP or Y DOWN to prevent overwriting the old curve The new T value is calculated by inserting the values determined for T1 T2 into the for mula Set the new T value in the configuration menu under SENSOR SELECT 37 FL W Meter ECO 1 Ex vision of customer calibration 4 2 7 Expanding the characteristic curve The characteristic may easily be extended upward when the temperature difference has been selec ted so as to provide sufficient reserve heating power normally ensured by the curve getting flat at higher velocities Note Consider some reserve for the heating power 4 2 1 Selecting the temperature differential when establishing a curve that is intended subsequently to be extended The extension can be made either by manually entering quantities Y and V to be assigned or in menu point TRIM ACTIVE giving a flow velocity Note It is not possible to include new trim points an existing characteristic curve 38 FCO1 Ex Metr FLSW _ s vision 5 Operation 51 Op
52. in hazardous areas other than mines section 12 2 2 3 grounding inductive systems with example special case b 11 _FL wW Flow Meter FCO1 Ex vision EX ATMOSPHERE Definitions and mounting instructions 2 6 Installation Ex components 2 6 1 Installation calorimetric monitoring head 2 6 1 1 Mechanical installation thread mounted monitoring head CST Ex Application Process connectors The monitoring head is designed for use as prescribed in explosive atmospheres to directive 94 9 EG The coated sensor tips are immersed into the medium of the equip ment group category 1 zone 0 and 20 G1 2 A L 27 5 mm G1 2 A L 36 mm 1 2 Material of area exposed to medium stainless steel X6CrNiMoTi17 12 2 1 4571 to DIN 17440 V4A standard material for water acids alkalines gases nickel based alloy Hastelloy alloy C4 2 4610 Titanium G7 3 7235 CST Ex 01xxxL08xxx CST Ex 01xxxL 10xxx CST Ex 03xxxL 10xxx G1 2A NPT1 2 14 G1 2A Anf Tit tt Eo RE ALLY aa MUN L 5 p undercut 9 o DIN 3852 B DIN 3852 B e
53. in menu DISPLAY SELECT and when setting the initial and end values the pertinent flow volumes will also be indicated 5 1 1 13 Analogue output medium temperature menu option ANA OUT TEMP In conformance with the configuration Flow rate analogue output it is possible to adjust the medium temperature analogue output to the requirements of the entire system Options are OFFSET FS 0 4 20 mA 0 1 5 V 0 2 10 V ZERO initial value 0 20 corresponds to a medium temperature of C F K final value 100 corresponds to a medium temperature of C F K When entering the initial or final value the user should observe a reasonable resolution 5 1 1 14 Quitting the configuration menu Upon configuration of the analogue outputs the menu may be quitted or reset to the start SENSOR SELECT To quit the configuration menu the controller will check the data entered for plausibility CONFIG OK is indicated when the data are found to be correct The menu may then be quitted by pressing M MODE Errors found during the plausibility check are indicated in the following sequence of priority Priority of entry errors in the CONFIGURATION menu ERR A OUT FLOW OUT OF RANGE flow analogue output outside measuring range ERR A OUT FLOW ZERO 2 FS initial value 2 final value with flow analogue output ERR A OUT TEMP OUT OF RANGE temperature analogue output outside measuring range
54. in the field Consideration must be made as to the medium and flow conditions available reference instrument required FlowVision factory calibration Calibration in measuring pipes integral system Calibration of water various oils air 3 3 2 Special flow and installation conditions The measuring system generally implies defined flow conditions to establish the flow characteristics of our standard characteristic curves This requires that certain mechanical dimensions within the pipeline such as distances before and after the monitoring head before or after any bends and changes in pipe diameter mounting attitude of the monitoring head e g immersion depth and any restrictions caused by turbulent or asymmetric flow be considered It is often difficult in compact systems to satisfy these requirements or to judge the consequences when they are not fully met e g missing flow straighteners The FCO1 Ex allows the user to partially or completely eliminate any serious consequences by means of its calibration features 29 Meter ECO 1 Ex vision Definitions and mounting instructions 3 3 3 How to achieve higher accuracy As a result of the relevant physical properties and the characteristics of the monitoring head any variations of control variables will be very small and nearly linear in the event of high flow velo cities however with low flow velocities there will be a high signal variation with r
55. int Error indication because of minor over limits of the upper calibration range values can thus be eliminated The extended characteristic range will then be fully available when determining the analogue output the limit values and the bar graph 4 2 5 New curve Old curve 4 2 5 1 New curve The following automatic processes have been provided for to facilitate and accelerate the calibration or manual entry of a new curve 1 Preloading of zero point control variables As a result of parasitic heat transfer points a big part approx 50 of the heating power is not transported through the medium but rather through the housing and the electrical cables The hea ting power control variable with zero flow has already a value above 25 000 digits Preloading the setting value for the lower trim point with that value obviates the need for passing through a wide setting range timesaving benefit Provided the temperature differential has been selected appropriately see chap 4 2 1 for recommended values 2 Linear preloading of interim values for velocity and control variable The calibration range left between the last addressed and established trim point and the zero point is linearly divided among the remaining trim points This applies both to velocity quantities and control variables It generally ensures that only a small calibration range needs to be passed provided that item 1 has been satisfied In this operating mode new
56. ion data remain unchanged and shall be confirmed by pressing M until the end of the calibration menu is reached Another verification of the characteristic curve will show the following test values Trim point V m s Test data Deviation 2 78 3 89 1 11 1 11 0 56 0 00 0 56 1 11 0 56 0 56 0 9 8 7 6 5 4 3 2 1 The example shows that after being corrected trim point 10 is within the required tolerance of 5 76 FCO1 Ex Flow Meter FLSW wie Expansion of the characteristic curve By following the instructions of chap 4 2 7 an existing curve can also be expanded upward In application example 1 the flow velocity range shall be increased by 0 30 m s This means that two additional trim points are required at 1 95 m s and at 2 10 m s To do this branch into menu CUSTOMER TRIM and enter old because the existing curve shall not be deleted but rather be expanded Increase the number of trim points from 10 to 12 Do not change the temperature difference leave it at 3 3 C Then assign flow velocity 2 10 m s to trim point 12 for userfriendliness had already been pre assigned with 1 82 m s and start the automatic calibration After determination of the Y value for point 12 trim point 11 is assigned to a velocity of 1 95 m s it had already been pre assigned to 1 81 m s and the automatic calibration is started All other data remain u
57. lation current or voltage output Please see the ordering number to find out whether it is a current or voltage output Output quantities 0 1 5 V FS option V1 0 2 10 V FS option V2 0 4 20 mA FS option C1 These FS full scale output quantities apply to both channels as standard 20 zero elevation and FS value can be programmed See chap 5 1 1 12 Shield connections are ungrounded The shields of the signal cables should be applied on one side only 27 FLG W Meter ECO 1 Ex vision Definitions and mounting instructions Power supply DC 24 V supply possible Internal switch mode power supply with physical isolation of the primary and secondary side Noise emission on the connection cable is limited by circuit design and filter A PTC resistor provides protection from overcurrent The element automati cally resets upon removal of the disturbance or after disconnection of the supply voltage of the FCO1 Ex for approx 1s e g remove terminal XV Please see chap 8 2 1 for technical characteristics 28 1 Flow Meter FLSW vision Definitions and mounting instructions 3 3 Customer calibration FC01 Ex functions are purely software functions which do not affect the FCO1 Ex hardware Generally a flow characteristic value is assigned to each control variable of the temperature differential controller with the variable equalling the heating power by adjustments as
58. lso adds considerably to the corrosion resistance of plain titanium So titanium G7 has proved to be extremely suitable for use in hydrochlorid or sulphuric acid solutions with little concentration as well as with due care in oxalic acid A wide range of applications is possible in aggressive media an zones endangered by sea water Please note that physical contact between titanium and magnesium aluminium copper or their alloys might lead to increased electrolytic corrosion of these materials 10 1 Flow Meter FLSW _ ed Definitions and mounting instructions 2 4 Temperature limits 2 4 1 Gases Maximum media temperature in zone 0 is 75 C This value also depends on the medium used which might limit the actually allowed temperature According to valid standards for use in equipment group II category 1 zone 0 and with regard to avoiding potential ignition sources the temperatures of all surfaces even with very rare operating troubles must not exceed 80 of the ignition temperature of an inflammable gas measured in C Therefore the user has to take care that the temperature limits of his particular medium be expressly stipulated in accordance with the known ignition temperature see DIN EN 1127 1 2011 German version Explosive atmospheres Explosion prevention and protection Part 1 Basic concepts and methodology chapter 6 4 2 hot surfaces category 1 For applications in category 2 th
59. mperature value will be flashing Note The medium temperature must be kept constant over the entire calibration process 5 1 1 4 8 Storing the characteristic curve Before quitting the CUSTOMER TRIM menu the 01 shall be informed whether the custom designed curve determined or entered shall be stored in a permanent touch switch M or volatile way UP or V DOWN If the characteristic curve shall be stored in a volatile way it will be deleted upon failure or power disconnection Note f a power failure occurs during the calibration the entire calibration must be repeated 5 1 1 4 9 Potential errors during the calibration 43 W Meter FCO1 Ex vieron All errors found during the calibration are indicated with their relevant number If one of the following errors occurs it is not necessary to repeat the entire calibration but rather the calibration of the trim point where the error occurred Error Cause Rectification No 10 Sensor not connected or cable between Check cable or replace the FC01 Ex and sensor defective pair electronic control unit or defective sensor monitoring head No 21 Medium temperature too high No 20 Medium temperature too low No 30 Temperature difference selected is too high Correct temperature difference 5 1 1 5 Limit switch combinations menu option LIMIT SWITCHES The FC01 Ex comprises two limit switches which are assigned to the ph
60. n too far thus causing an undue restriction in the pipe bore It is therefore recommended to connect a union of suitable length to the pipe If installed in fittings or T pieces with appropriate internal thread the max length of the connection piece must be adjusted to the inner pipe wall Caution The sensors must be positioned fully in the flow stream Observe installation position direction and required insertion depth Ex monitoring heads must be screwed in at least 7 threads 2 6 1 2 4 Sealing Use suitable thread sealing e g hemp teflon band sealing glue with fitting to DIN 3852 form A with O ring length 36 mm with fitting to DIN 3852 form B with sealing face length 27 5 mm Please pressurize the pipe system and check with regard to leakages spanner flats parallel to flow direction fig 4 FL W Meter 1 eee Definitions and mounting instructions 2 6 1 3 Electrical connection The power supply to monitoring head CST Ex is an intrinsically safe ungrounded passive N terminal output from XSK of the FCO1 Ex via Stahl safety barriers EG TYPE EXAMINATION CERTIFICATE PTB 01 ATEX 2053 Connection is by means of a light blue cable 4 x 2 x 0 75 mm variable in length Lay signal cable shielded blue to DIN EN 60079 14 2003 chapter 12 2 2 3 see also chap 2 5
61. n of the next same or previous trim point not with the first trim point When the next trim point is selected the trim point number is reduced by one The trim point is again assigned to a flow velocity and the automatic calibration is started This procedure is repeated until the last trim point TRIM POINT 01 has been calibrated The customer designed characteristic curve has now been established and entered 5 1 1 4 6 Manual calibration 42 FCO1 Ex Metr FLSW _ wie If a custom designed characteristic curve has already been established and the curve shall be dupli cated on an other 01 it is possible to enter the data for the various points by hand The method is largely identical with that for automatic calibration The heating power belonging to the flow velocity is not determined automatically but rather entered on the FCO1 Ex by hand It is also possible to make the calibration combining automatically determined and theoretically calculated trim points 5 1 1 4 7 Calibration temperature After confirmation of the last trim point TRIM IS READY is displayed The second line on the display will show the medium temperature in C at which the calibration was made With automatic calibration the calibration temperature is displayed non flashing and cannot be changed by hand If the calibration data were entered by hand the calibration temperature must also be set by hand In that case the te
62. nchanged and shall be confirmed by pressing M until the end of the CUSTOMER TRIM menu is reached Trim point 11 10 35346 9 35267 8 1 40 35158 T 1 20 35063 6 1 00 34890 5 0 80 34668 4 0 60 34347 3 0 40 33846 2 0 20 32957 1 0 00 24635 Manual entry of a characteristic curve It is also possible to enter a custom designed curve by means of the keyboard This may be reasonable when several FC01 Ex flow meters are used under identical conditions medium installation etc To duplicate the expanded curve of example 1 on a second FC01 Ex select the calorimetric sensor in menu SENSOR SELECT set its C value and enter FLUID in menu MEDIUM SELECT For other entries proceed as described for example 1 Implementation CHARACTERISTIC gt new NUMBER OF TRIM POINTS gt 12 TEMPERATURE DIFFERENCE gt 3 3 77 W Meter FCO1 Ex vieron Take the data for the curve from the table of page 77 and set them on the FC01 Ex Flow velocity 2 10 m s shall be assigned to trim point 12 Other than with the automatic calibration the applicable Y value of 35441 shall be entered by means of the keyboard 1 95 m s and 35396 are set for point 11 etc This procedure is repeated until the entire curve has been determined After the data for point 1 have been entered and confirmed the display indicates TRIM IS READY 25 0 C Other than wi
63. nded SGNDA1 DOS OPO do 0029 DAS XTF XSK XV XAO XAS tease ungrounded fig 9 SGNDA2 Apply shield on one side only BE OXE ADAN 8 0 92 0 92 0 s nd no 21 FL W Meter FCO1 Ex eee Definitions and mounting instructions 2 6 2 2 2 Electrical connection frequency output version FC01 Ex U1T4 The quantity dependent pulse to operate a counter or higher order control is available at connector BUSY and BUSY pins and 4 see fig 9 Circuit diagram 1 open collector output Signal ground shall be connected to 3 BUSY E and the driving load to pin 4 BUSY Select cable size lt 1 5 mm to make the connections The shield cables can be connected to connector pin 3 Electronic signal processing If the frequency output of the FCO1 Ex is connected to an electronic counter computer or PLC the load current should not exceed 10 mA so as to ensure low level is 0 8 V The max admissible voltage level of 48 V is irrelevant in this connection Typical circuit example 1 Ww XAS XAO XAH
64. nection Take the FC01 Ex equipotential bonding cables 21 5 mm from the monitoring head through the cable gland 1 fig 7 and to the centre grounding system fig 6 and connect to terminal USLKGS5 Take the cable of the monitoring head through the blue cable gland and connect to the barriers according to the connection scheme FCO1 Ex fig 6 Take power supply feed through cable gland 2 and further required connection cables through cable gland 3 fig 7 and connect to terminals XV see connection scheme fig 6 18 1 Flow Meter FLSW _ ed Definitions and mounting instructions DAS ee eee XV XSK XTF YG 2 AP 0900000010 e meet XV power supply XAS not released for user XSK calorimetric monitoring head XAO analogue outputs XTF keyboard release signal outputs fig 8 Valid for all plug in srew terminal strips Cable size 0 14 mm to 1 5 mm single or stranded conductor Stripping length 6 5 mm Clamping screw M2 nickel plated brass Contact material pre tinned tin bronze XV Power supply Connection by 3 pole connector Ag 1 5 mm 3 x 0 75 mm cable recommended Pin No Signal name Function SGND general refer
65. nfiguration gt CONFIGURATION 4 and vn submenu D SENSOR SELECT sensor selection _ CONFIGURATION and submenu MEDIUM SELECT medium selection CONFIGURATION and 2 submenu CUSTOMER TRIM customer trim yv CONFIGURATION and E submenu LIMIT SWITCHES LS combination y i CONFIGURATION 4 and submenu FLOW UNIT flow unit CONFIGURATION and v submenu TEMP UNIT temperature unit CONFIGURATION 4 and d submenu DISPLAY SELECT display selection CONFIGURATION and submenu ANA OUT FLOW analogue flow CONFIGURATION and submenu ANA OUT TEMP analogue temperature M END OF CONFIG gt A or V 19 ERROR CONFIG yes or CONFIG OK PUSH M to main ment D 50 1 Flow Meter FLSW _ vision 5 1 1 16 Configuration submenus Conf SENSOR CODE T 50 SENSOR CODE C1000 Y SENSOR SELECT sensor selection TYPE CALORIM k Conf Conf TA submenu MEDIUM SELECT MEDIUM SELECT medium selection GAS FLUID D o o Conf r
66. ng head electronic control unit must be replaced 30 FCO1 Ex Meter FLSW _ 5 vision of customer calibration 4 Technical implementation of customer calibration The FC01 Ex can be used to establish a new pipe depending curve or to enter or store it as a theoretical curve 4 1 Calculation Interpolation between the trim points is linear This applies both to the velocity values and the control variables to be assigned by the user i e the velocity dependent heating power required to maintain a constant temperature differential between the medium and the heated probe in the case of a calorimetric sensor Beyond the maximum and minimum trim point extrapolation is made by 10 each of the applicable upper measuring range value As the sensor is not direction sensitive the minimum flow value displayed will be zero Maximum number of trim points 20 Minimum number of trim points 2 The maximum trim point is assigned to the maximum velocity the assignable velocity decreases with a descending trim point index Definition Vn velocity assigned to setpoint n n 2 20 trim point index Condition for the trim points lt sick 20 4 2 Calibration 4 2 1 Selection of CTD value temperature differential It is possible to select an optional temperature differential setpoint within a temperature limit of 3 0 C and 15 C providing that 90 Imax of this current heating power is not exceeded t
67. nge are also represented at the appropriate place of the analogue bar 59 _FL W Meter FCO1 Ex Sie se The following figures show the display variants under the menu option Measured value s chap 5 1 1 8 menu option DISPLAY SELECT and 5 1 1 11 menu option FREQUENCY OUTPUT 5 0 m s 13 5 C r MM inverse representation switch on condition 5 0 m s 13 5 C F 1332 4 3 5 0 m s 13 5 C F 370 1 1 5 5 0 m s 13 5 22206 9 l min 5 0 m s 13 5 37004567 9 5 0 m s 13 5 3704 6 m 5 0 m s 13 5 3704567 9 m3 B frequency output selected PULSE fig 18 60 1 Meter FLSW _ vision 6 2 1 2 Peak values menu option PEAK VALUE MIN PEAK VALUE The 01 comprises four specific measured values memories They store the lowest and highest value of flow rate and medium temperature MIN VALUE MIN VALUE Flow rate Medium temperature MAX VALUE MAX VALUE Flow rate Medium temperature fig 19 After switch on or NOT BUSY indication the minimum and maximum values are deleted and will be continuously updated non return pointer principle The peak values may be retrieved in the main menu and are deleted by simultaneously pressing A UP and DOWN Caution A Power failure or disconnecti
68. nnection of the power supply Skipping to the menu BARGRAPH or PIPE SIZE is effected depending on the selected menu option 5 1 1 9 Bar graph menu option BARGRAPH This menu option allows the user to set the bar graph as desired The following settings should be made FLOW TEMP bar graph assignment flow rate medium temperature ZERO initial value of the bar graph FS final value of the bar graph Independent of its assignment the bar graph has a constant resolution of 10 segments When entering the initial or final value the user should observe a reasonable resolution The bar graph also comprises the representation of the limit switch es as far as they can be indi cated in the bar range selected The representation of the limit switches in the bar graph depends on the switch on value of the limit Switch For representation details see chap 6 2 1 Operating data Example Limit switch assignment 151 LS2 gt T Switch on value LS2 23 Analogue bar graph assignment medium temperature Initial value analogue bar graph 20 C Final value analogue bar graph 30 C Instantaneous temperature value 25 C resulting in the analogue bar graph display shown below see fig 15 5 1 1 10 Pipe size menu option PIPE SIZE To display a flow volume time unit or a totalizer function it is necessary to indicate the pipe diameter to calculate mass flow This is provided by selecting the pipe diam
69. o indicate the temperature differential at max flow velocity 90 Imax Y 36864 Digits Error error 30 will be indicated if this limit is not observed during calibration The user will then have to select a lower temperature differential As different media have different heat transfer capacities specific heat and densities CTD value selection also depends on the medium to be measured Please see the following table and assignment list for guidance Class 1 gases Class 2 granules dust and other mixtures containing solids Class 3 water and similar media oils and other homogeneous liquids and liquid mixtures 31 _FL wW Flow Meter FCO 1 Ex vos ie m of customer calibration Note The measuring procedure necessitates a homogeneous distribution of substances mixture Varying mixtures can only be detected by supervisory systems The particle size of class 2 media must not exceed 2 mm Medium Med Flow velocity V Temperature differential Ad Mass m Specific heat Density Assignment table Medium Flow velocity Temperature differential Class Medium Chemical V m s A9 C g dm c cal g C symbol 0 C 20 C 1 bar 14 7 psi 1 bar 14 7 psi Class 1 a air 25 10 5 1 293 0 24 oxygen 02 25 10 5 1 429 0 219 nitrogen N2 25 10 5 1 25 0 249 nitro oxide NO 25 10 5 1 34 0 237 carbon monoxide 25 10 5 1 25 0 249 deuterium 25 10 5 0 1798 1 731 fluorine F2 25 10 5 1 696
70. on of the power supply will delete the contents of the four measured values memories 6 2 1 3 Last error menu option LAST ERROR The last main menu option to be called is the error memory This error memory comprises the number of the last error see chap 7 It may be very helpful when commissioning the FCO1 Ex Other than the peak value memories described above the contents of this memory will be retained even upon failure The user may purposely delete the error memory in the condition selected by simultaneously pressing UP and W DOWN 61 FL W Meter FCO1 Ex vision 6 2 1 4 Main menu poweron gt HEATING UP 0000000 gt 12 5 13 5 1 10 8 m s 19 5 C and delete PEAK VALUE MIN 2 14 8 105 6 C and y TEES PEAK VALUE MAX D 12 5 13 5 aD 2 menu Configuration HEATING UP PARAMETERS 125m s 135 C and y PARAMETERS menu Parameter selection M 7 HEATING UP LAST ERROR 12 5 m s 13 5 C and y NL LAST ERROR 20 lt stored 62 FCO1 Ex Meter FLSW SSS rH vision 7 5 7 1 Test and diagnosis
71. or the heater control to indicate this is dis played as error 30 It is then immediately possible to reduce the temperature differential to a value the controller is able to indicate see chap 4 2 1 Selection of CTD value It is thus verified and ensured when starting the calibration that the flow characteristics can be dis played eliminating that a curve must be dropped because its last trim point s cannot be indicated 34 FCO1 Ex Flow Meter FLSW _ Mvision of customer calibration 4 2 4 Zero point directional discrimination and upper characteristic curve value The zero point of the characteristic curve and the zero point of flow need not be identical If the zero point of the characteristic curve lowest trim point is above the zero point of flow the characteristic curve is linearly extrapolated down by 10 MBE upper measuring range value so as to extend the calibration range of the FC01 Ex However the extrapolation is only effected to the theoretical zero point as the measuring system does not operate in a direction selective way the zero point of flow and the zero point of the characteristic curve are identical the control variable should be increased by 300 to 400 digits to suppress the convection dependent variation of the zero point In the same way that the calibration range can be extrapolated downward by 10 MBE so can the upper calibration range be extrapolated by 10 MBE above the upper trim po
72. ormulas Vin Shows the alternative linear trim point selection Verification Projecting the suggested trim points on to the standard curve used by FlowVision will result in max error being 0 5 MBE This is clearly below the required 3 MBE 0 75 m s With a linear trim point distribution max error would be 2 4 This would also be a satisfactory solu tion with the advantage that you needn t calculate the trim points 79 _FL wW Flow Meter 1 VIS EXAMPLES Viin m s 16 set at upper measuring range value 25 00 15 23 33 14 21 66 13 20 00 12 18 33 11 16 66 10 15 00 9 13 33 8 11 66 7 10 00 6 8 33 5 6 66 4 5 00 3 3 33 2 1 66 1 set at zero 0 00 80 VISION 1 Flow Meter FLSW 19591 1215 ees pequosep 5 5 10119 s nd no y jo ZH OL 1ndino 4939 ue esneo Lp Op 10119 Jo asind 440 pejoejes ueeq sey 1ndino Aouenbey ueuM eoueuuoued piepuels X X X NO A X X ON 10213 X x NO A x x Ot ON 1043 X X V4 330 x x 09 ON 10413 X X NO 340 X X 5 ON 40413 X X NO 330 X X 0 ON 10413 NIIN 340 340 340 340 ON 40413 x X NO 340 X X Oc ON 40445 NIN NIN 330 330 330 330
73. r FCO1 Ex vision 8 5 2 Transistor outputs DC switching voltage Pin selection Signal name Pin XAH Polarity ERROR emitter 1 ERROR collector 2 BUSY PULSE emitter 3 BUSY PULSE collector 4 Limit Switch 2 emitter 5 Limit Switch 2 collector 6 Limit Switch 1 emitter 7 Limit Switch 1 collector 8 m Voltage level Low level active Uce lt 0 8 V for lc lt 10 mA Use lt 1 V for Ic lt 100 mA High level passive Uce lt 48V max 60 V max leakage current lt 25 uA Reverse polarity protection yes Ima lt 1 Short circuit protection yes Ima lt 1A Resistive load Max admissible switching capacity 1 5 W Max admissible switching current 150 mA Max admissible switching voltage 36 V Inductive load L lt 100 mH DC voltage without external safety circuit Max admissible switching capacity 1 5 VA Max admissible switching current 40 mA Max admissible switching voltage 36 V Capacitive Last lt 20 uF Max admissible switching capacity 1 5 VA Max admissible switching current 1 5A Max admissible switching voltage 36V Insulation voltage signal contact central electronic unit 500 V signal contact signal input 500 V 70 FCO1 Ex Flow Meter FLSW _ vision 8 6 Metrological data 8 6 1 Mass flow measurement Medium air water Measuring range 0 20 m s 0 3 m s 10 MBE 10 MBE Repeatability 1 MW
74. rror No 60 can only occur with version FC01 Ex U1T4 65 _FL wW Flow Meter 1 VIS TECHNICAL DATA 8 Technical data 8 1 Ambient conditions FC01 Ex Storage temperature Ambient temperature Degree of protection Only if the modules are spaced at least 10 mm 8 2 Monitoring head CST Ex Temperature measuring range medium Temperature measuring range ll sensor Temperature measuring range Ill cable Pressure resistance Degree of protection housing Pollution degree cable head connection to DIN VDE 0627 8 3 Electrical characteristics 8 3 1 Power supply DC supply Pin selection 66 20 70 10 43 IP54 40 75 30 75 10 80 C 100 bar 1470 PSI IP67 connection cable in locked condition 2 Signal name Pin XV Uy 2 Uv 3 1 Flow Meter FLSW _ vision 8 3 1 1 DC voltage supply Supply voltage Uw 24 V Input voltage range Uv 19V to 32V ripple incl 12 V only possible with voltage output Admissible ripple w 20 Uy Rated current consumption analogue outputs V1 and V2 lnk 170 mA 10 with zero flow 200 mA 10 with max flow end of measuring range analogue output C1 lnk 185 mA 10 with zero flow 230 mA 10 with max flow end of measuring range Inrush current lp 20 us Switch off current lkipp 0 75 Rated power consumption 4 1
75. s the monitoring head should be installed where the flow is rising if possible For horizontal pipelines the monitoring head should be mounted on the underside of the line suspended The monitoring head should be installed only a straight section of piping There should be a distance of at least 20 pipe diameters before the monitoring head and 5 pipe diameters after the monitoring head before or after bends and changes in pipe diameter to avoid any effects of turbulence fig 3 Flow past the sensor should correspond to the direction of the arrow on the sensor 20xD 5xD gt D nominal pipe diameter 20 x D 5xD mi D nominal pipe diameter fig 3 14 1 Flow Meter FLSW _ ed Definitions and mounting instructions 2 6 1 2 2 Gases If gases are to be monitored the mounting attitude of the monitoring head is unimportant in either vertical or horizontal pipelines There should be a distance of at least 20 pipe diameters before the monitoring head and 5 pipe diameters after the monitoring head before or after bends and changes in pipe diameter to avoid any effects of turbulence fig 3 2 6 1 2 3 Depth of threading The two sensors should be screwed into the pipeline far enough to ensure that the sensors are posi tioned fully in the flow stream However care should also be taken that the sensor is not screwed i
76. t mi LY N y 1 SW27 FLW D gt 5 Sw27 RM Y fig 1 12 1 Flow Meter FLSW _ ed Definitions and mounting instructions 2 6 1 2 Mounting instructions Check that the monitoring head is suitable for the medium to be monitored The monitoring head must only be used for media against which the sensor material is sufficiently chemically or corrosion resistant When using titanium installation has to ensure that impact and friction sparks cannot occur Compare monitoring head with pipe fitting and check whether fitting or T piece have the corre sponding internal thread and whether the length of the process connection is correct The two sensors M should be screwed into the pipeline far enough to ensure that they are aligned side by side directly across the direction of flow The sensors are correctly positioned when the wrench flats S are aligned parallel with the pipeline Vertical pipelines Horizontal pipelines The two sensors must be The surface of the shaft Medium should be rising Monitoring head should be side by side across the end should project into mounted on the underside direction of flow the inner pipe wall approx 1 2 FL W Meter FCO1 Ex Definitions and mounting instructions 2 6 1 2 1 Liquid media e Inthe case of vertical pipeline
77. th the automatic calibration the calibration temperature at which the curve has been determined will be flashing on the display and must be set at 82 8 C manually see example 1 Implementation The calibration data are completely entered Before quitting the submenu press M to permanently store the calibration data 78 1 Flow Meter FLSW EXAMPLES vision 9 2 Example 2 Distribution of trim points Task definition The 01 with calorimetric sensor shall be used to measure air flowing at a max velocity of 25 m s The lower measuring range value is approx 0 m s A calibrated calorimetric metering pipe is used as a reference The pertinent measuring instrument indicates the flow velocity in m s The measuring range of the reference instrument is specified between 1 m s and 40 m s the meas uring error shall be 1 of the value measured The resultant error shall be lt 3 of the upper measuring range value Approach Implementation With a disturbance free flow profile the trim points can be calculated by the following formula MA MB x 1 e SP 1 x g SG g 2 5 x SP 1 SG AB trim value m s lower measuring range value m s 0 m s ME upper measuring range value m s 25 m s MB measuring range m s MB 25 m s SP trim point no 5 total number of trim points 16 9 distribution coefficient Determine the trim points using the above f
78. tween monitoring head and central electronic unit Connection of the monitoring heads is by means of precut cable links Cables and user interface connections are shown in chap 2 6 2 2 and circuit diagram 2 6 2 2 1 System configuration and parameter setting are by means of the keyboard if default values need to be changed chap 5 1 1 and 5 1 2 This mainly applies signal outputs switch point setting and analogue outputs zero point setting and scaling 3 2 1 User interfaces Signal outputs 1 R2 Relay outputs 2 limit values optional Two channel physical isolation relay change over contact The channels may be assigned in menu CONFIGURATION either individu ally or in pairs to the physical quantities of temperature or flow The switch on and off values can be set as desired yet within the measuring range for each contact Please see chap 8 5 1 for electrical connection 2 T4 Transistor outputs 2 setpoints 2 status outputs or 1 status output 1 frequency output Four channel physical isolation transistor output collector emitter freely connectable Channel 1 common error signal Channel 2 busy signal or frequency output Channel 3 and 4 Both channels may be assigned individually or in pairs to the physical quantities of temperature or flow The switch on or off values of each transistor output can be set as desired Please see chap 8 5 2 for electrical connection Analogue outputs Two channel physical iso
79. uring range or continuity criteria such as differentiating criteria These issues are addressed in chap 9 Examples Generally there are fewer trim points needed in the upper characteristic curve range than in the lower range the reason for this being the flattening characteristic curve see chap 9 Depending on the medium and the measuring range it is possible to use different procedures in selecting the trim points A linear preselection of the trim points has been provided for in the FCO1 Ex With the appropri ate number of trim points set this procedure achieves good results over the entire velocity range 5 m s with water 25 m s with air A trim point distribution which significantly reduces the measuring error when compared to a linear distribution can be determined by the following formula see 9 2 Example 2 MB AB MB x 1 eSP xg SO g 2 5 x SP 1 SG AB trim value m s SP trim point No SP 1 SG lower measuring range value m s SG overall number of trim points ME upper measuring range value m s g distribution coefficient MB measuring range m s 4 2 3 MAX MIN Calibration procedure The MAX MIN calibration procedure has been selected because the critical parameter max heating power is determined in the computer background after the first calibration step max flow velocity If too high a temperature differential has been selected f
80. ut of exitation current source for RTD operation Exitation current 1 mA x 1 Admissible load range 0 2 Dielectric strength 15 V DC XSK7 SGND Function shield ground XSK8 Terminals for sensor cable shielding XSK9 R Tdiff LO Function terminal for negative pole of the heated RTD Input resistance gt 1 GQ Dielectric strength 17 V 30 V DC XSK10 R Tdiff HI Function terminal for positive pole of the heated RTD Input resistance gt 1 GQ Dielectric strength 17 V 30 V DC RTD Resistive Temperature Device 72 FCO1 Ex Flow Meter FLSW ees vision 9 Examples 9 1 Example 1 monitoring head Medium water New curve Task definition 01 with calorimetric monitoring head shall be used to control a water cooling cycle The flow velocity to be controlled and measured lies between 0 00 m s and 1 80 m s at a constant medium temperature of approx 82 C A flow meter to be used as a reference instrument is available on loan Approach As the accuracy does not need to be very high 5 it is supposed that 10 trim points are required to provide a satisfactory solution To obtain a higher accuracy the number of trim points can be increased to 20 The distribution of the 10 trim points should be linear over the entire measuring range Implementation Select the sensortype Calorim in submenu SENSOR SEL
81. vision of customer calibration The following quantities are recorded T 50 T2 T1 The resultant T value is filed in the configuration menu under SENSOR SELECT TYPE CALORIM CODE T 4 2 6 2 Establishing the new T value At first a new curve has to be recorded by setting the T value in the SENSOR SELECT menu at 50 With heads monitoring water or air see introduction to this section it is possible to use the value if similar media are to be monitored It is necessary to set C1000 as basic value if the characteristic quantities of a medium cannot be assigned to a medium group After setting the C and T values the number of trim points and the temperature difference shall be defined in the CUSTOMER TRIM menu Record the new curve as described observing constant temperature conditions 1 Yr Vr as described After establishing and storing the new curve the medium shall be heated to setting temperature T2 Then return to the CUSTOMER TRIM menu and select option old curve Address the trim point the control variable of which you wish to establish at temperature T2 and the same velocity as when recording the new curve Compare the following values displayed TRIM POINT m s Y with the values noted These values shall still be assigned to the old curve which was recorded at temperature T1 Then set velocity V at the higher temperature T2 Activate t
82. w to achieve higher accuracy 30 3 3 4 How to achieve the full scale 30 3 3 5 Pin point adjustment selective 30 3 3 6 Reproduction of precise measuring instruments 30 3 3 7 Use of standard monitoring heads 30 4 Technical implementation of customer calibration 31 Elec Km 31 4 2 Calibration aeos rbd utate D rh a ee eee 31 4 2 1 Selection of CTD value temperature 31 4 2 2 Trim point selection number and position 34 4 2 3 MAX MIN Calibration 34 4 2 4 Zero point directional discrimination and upper characteristic curve value 35 4 2 5 curve Old Curve issu rel Reate ta Ex Reden DE ERE 35 4 25 NOW CULVE nna u a yuyun es ek eb Nu deb as 35 412 512 Old CUVE 22 a ne dol redu E DE EM dA 36 4 2 6 Transfer of C and T values Re establishment of T value 36 4 2 6 1 Establishing the T value 36 4 2 6 2 Establishing the new T value 37 4 2 7 Expanding the characteristic 38 5 Op
83. ysical quantity quantities to be monitored in menu LIMIT SWITCHES The following four combinations are available 151 gt LS2 gt Limit switch 1 flow rate Limit switch 2 flow rate LS1 gt T 152 gt T Limit switch 1 medium temperature Limit switch 2 medium temperature 151 gt 152 gt T Limit switch 1 gt flow rate Limit switch 2 medium temperature LS1 gt T LS2 gt Limit switch 1 medium temperature Limit switch 2 flow rate Mode of operation limit value and hysteresis of the limit switches are set in menu PARAMETER SELECTION Caution A Menu option LIMIT SWITCHES may influence data in the parameter selection menu see chap 5 1 1 14 Quitting the configuration menu 44 FCO1 Ex Metr FLSW _ OPERATION vision 5 1 1 6 Flow rate unit menu option FLOW UNIT This menu option is used to set the desired flow rate unit METRE SEC m s PERCENT FEET SEC FPS BLANK no unit Any further entries relating to flow rate e g limit value analogue output etc refer to that unit Standard percent is displayed when BLANK no unit is selected When the flow rate unit is changed all configuration and parameter data relating to flow rate will automatically be converted 5 1 1 7 Medium temperature unit menu option TEMP UNIT This submenu is used to select medium temperature unit Options are GRAD CELSIUS C

Manual - FlowVision GmbH

Contents

Download Pdf Manuals

Related Search

Related Contents