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YOKOGAWA SC202G, User Manual

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YOKOGAWA SC202G User Manual Download Page 79

IM 12D08B02-01E

 Appendix 1-5

 FUNCTION 

SETTING 

DEFAULTS 

USER 

SETTINGS

User Interface

50 *RET 

1 

On 

   

52 *PASS 

0.0.0 

all 

off 

   

53 *Err.01 

1 

hard 

fail

 *Err.05  1 

hard 

fail

 *Err.06  1 

hard 

fail

 *Err.07  1 

hard 

fail

 *Err.08  1 

hard 

fail

 *Err.13  0 

soft 

fail

54 *E5.LIM 

250 

mS

  

(0.004)  k

Ω

 *E6.LIM  1.000 

μ

S

  

(1.0) 

M

Ω

55 *0 

% 

0 

Off

 100% 

100.0

56 

*DISP 

0 

Auto ranging (SC)

  

(2) 

(xx.xxM

Ω

·cm) (RES)

57 *USP 

0 

Off

Communication

60 *COMM. 

1.0 

On/write 

ena.

 *ADDR.  00 

00

61 

*HOUR 

  

  

 

 

62 

*ERASE 

  

  

 

 

General

70 

*LOAD 

  

  

 

 

Test and setup mode

80 *TEST 

 

 

   

mA

mA

Summary of Contents for SC202G

Page 1: ...User s Manual Model SC202G Style S3 SC202S Style S3 2 wire Conductivity or Resistivity Transmitter IM 12D08B02 01E 8th Edition IM 12D08B02 01E...

Page 2: ...13 2 12 Control Drawing of SC202S FF PB Specification FM Intrinsically safe FISCO 2 15 2 13 Control Drawing of SC202S FF PB Specification FM Non incendive Entity 2 17 2 14 Control Drawing of SC202S F...

Page 3: ...specific functions 5 8 5 3 2 Temperature measuring functions 5 10 5 4 Temperature compensation functions 5 12 5 5 mA output functions 5 14 5 6 User interface 5 16 5 7 Communication setup 5 18 5 8 Gen...

Page 4: ...ent of parameter setting 2 5 12 4 1 Set cell constant service code 03 2 5 12 4 2 Temperature sensor service code 10 2 5 12 4 3 Automatic return service code 50 2 5 12 4 4 Error setting service code 53...

Page 5: ...ction and safety of the human body the product and the system containing the product Electric discharge The EXA analyzer contains devices that can be damaged by electrostatic discharge When servicing...

Page 6: ...from the typical warranty period and the conditions of sale relating to the original purchase order should be consulted Damage caused by wear and tear inad equate maintenance corrosion or by the effe...

Page 7: ...rans Neem indien u aanwijzingen op het gebied van explosiebeveiliging nodig hebt in uw eigen taal contact op met de dichtstbijzijnde vestiging van Yokogawa of met een vertegenwoordiger SF Kaikkien ATE...

Page 8: ...IM 12D08B02 01E LT LV PL EST SLO H BG RO M CZ SK...

Page 9: ...60 62 Burn out inactive HI or LO output on fail 5 14 5 15 SC 32 Temperature compensation NaCl in water fixed T C matrix 5 12 5 13 5 5 SC 20 28 temp USP functionality inactive Fail if USP limits are 9...

Page 10: ...composants peut rendre ce materiel inacceptable pour les emplacements de Classe I Division 2 Ex nA nL IIC NI CL I DIV 2 GP ABCD T4 T6 for Ta 40 C SEE CONTROL DRAWING LR81741 C R Type 4X Install per C...

Page 11: ...ution de composants peut rendre ce materiel inacceptable pour les emplacements de Classe I Division 2 Ex nA nL IIC NI CL I DIV 2 GP ABCD T4 T6 for Ta 40 C SEE CONTROL DRAWING LR81741 C R Type 4X Insta...

Page 12: ...ease of operation Sensors should normally be mounted close to the transmitter in order to ensure easy calibration and peak performance The EXA is delivered with a general purpose default setting for p...

Page 13: ...IM 12D08B02 01E 1 4 Introduction...

Page 14: ...g IEC 60746 3 NaCl tables default T C Two independent user program mable temperature coefficients from 0 0 to 3 5 per C F by adjustment or calibration Matrix Conductivity function of concentra tion an...

Page 15: ...n the industrial environment Please use this instrument in the industrial environment only J Explosionproof type Refer to control drawings Item Description Code Factory Mutual FM CENELEC ATEX KEMA Typ...

Page 16: ...1 Ex ia Class I Division 1 Groups ABCD Ex ia IIC Temp Class T4 Amb Temp 10 to 55 C T6 Amb Temp 10 to 40 C Ui Vmax 31 5 V Ii Imax 100 mA Pi Pmax 1 2 W Ci 22 nF Li 35 H A Canadian Standards Association...

Page 17: ...ax 1999 mS cm max 90 zero suppression Resistivity min 0 001k cm max 999 M cm max 90 zero suppression The instrument is user mA programmable for linear or non linear conductivity ranges N Cable specifi...

Page 18: ...nts NI FBUS configurator L Hardware F BUS interfaces from National Instru ments AT FBUS PCMIA FBUS M Other control systems YOKOGAWA PRM DTM 2 2 wire Conductivity transmitter Explosionproof type Model...

Page 19: ...onal Functional Sensor s are of a passive type to be regarded as simple apparatus Electrical data of the SC202S Supply and output circuit terminals and Maximum input voltage Ui 31 5 V Maximum input cu...

Page 20: ...l earth Functional Sensor s are of a passive type to be regarded as simple apparatus Electrical data of the SC202S Supply and output circuit terminals and Maximum input voltage Ui 31 5 V Maximum input...

Page 21: ...Terminal HHT is not connected to the power supply lines of the SC202S see figure 1 Any FM Approved barrier or power supply may be used that meets the following requirements Voc or Vt d 31 5 V Isc or I...

Page 22: ...hrough 16 Maximum output voltage Vt 14 4 V Maximum output current It 10 mA Maximum allowed external capacitance Ca 1 71 F Maximum allowed external inductance La 600 mH The Hand Held Terminal must be F...

Page 23: ...t voltage Voc 14 4 V Maximum output current Isc 13 mA Maximum allowed external capacitance Ca 2 9 PF Maximum allowed external inductance La 450 mH The Hand Held Communicator must be of a CSA certified...

Page 24: ...5 V Maximum input current Ii 380 mA Maximum input power Pi 5 32 W Effective internal capacitance Ci 220 pF Effective internal inductance Li 0 H Sensor input circuit Maximum output voltage Uo 14 4 V M...

Page 25: ...7 5 V Maximum input current Ii 380 mA Maximum input power Pi 5 32 W Effective internal capacitance Ci 220 pF Effective internal inductance Li 0 H Sensor input circuit Maximum output voltage Uo 14 4 V...

Page 26: ...internal inductance Li 0 PH Sensor input circuit Maximum output voltage Vt 14 4 V Maximum output current It 10 mA Maximum allowed external capacitance Ca 59 36 nF Maximum allowed external inductance...

Page 27: ...screen if both line are floating C C line line C line screen if the screen is connected to one line Length of spur cable max 30 m Length of trunk cable max 1 km Length of splice max 1 m WARNING Substi...

Page 28: ...r It d 380 mA Poc or Pt d 5 32 W When installing this equipment follow the manufacturer s installation drawing Installation should be in accordance with ANSI ISA RP 12 06 01 Installation of Intrinsica...

Page 29: ...used to interconnect the devices needs to comply with the following parameters Loop resistance R 15 150 km Inductance per unit length L 0 4 1 mH km Capacitance per unit length C 80 200 nF km C C line...

Page 30: ...Sensor input circuit Vt 14 4 V It 10 mA Ca 1 71 F La 600 mH When installing this equipment follow the manufacturers installation drawing Installation shall be in accordance with Article 501 4 B of th...

Page 31: ...H Sensor input circuit Vt 14 4 V It 10 mA Ca 1 71 F La 600 mH When installing this equipment follow the manufacturers installation drawing Installation shall be in accordance with Article 501 4 B of t...

Page 32: ...Ii 380 mA Maximum input power Pi 5 32 W Effective internal capacitance Ci 220 pF Effective internal inductance Li 0 H Sensor input circuit Maximum output voltage Uo 14 4 V Maximum output current Io 1...

Page 33: ...IM 12D08B02 01E 2 20 Specifications...

Page 34: ...within the limits of the instrument specifications See chapter 2 3 1 2 Mounting methods Refer to figures 3 2 and 3 3 Note that the EXA transmitter has universal mounting capabilities Panel mounting us...

Page 35: ...pipe mounting diagram 56 2 6 5 4 10 70 200 77 115 Pipe mounting Vertical Pipe mounting Horizontal Nominal 50 A O D 60 5 mm 4 eps 7 87 2 75 0 26 2 20 0 4 3 4 5 2 inch pipe Unit mm inch Fig 3 2b Panel...

Page 36: ...power Commission the instrument as required or use the default settings 5 Replace the cover and secure frontplate with the four screws 6 Connect the grounding terminals to protective earth 7 The optio...

Page 37: ...n the certificate This sets a limit to the cable and extensions used The intrinsic safe version of the EXA 202 instrument can be mounted in Zone 1 The sensors can be installed in Zone 0 or Zone 1 if a...

Page 38: ...ions This ensures the minimum operating voltage for the instrument Grounding If the transmitter is mounted on a grounded surface e g a metal frame fixed in the soil the shield of the 2 wire cable may...

Page 39: ...the instrument with the iden tification numbers on the cable ends The separate sensors and the WU40 LH cables are also numbered but the numbers do not always match with the terminal numbers in the ins...

Page 40: ...m for other sensors Figure 3 11 Terminal identification label 3 6 1 Sensor cable connections using junction box BA10 and extension cable WF10 Where a convenient installation is not possible using the...

Page 41: ...10 Cable TRANSMITTER CONVERTER A C Overall shield B D Screen E Red White Blue Brown Thermistor Temperature sensor Ground Shield Secondary Coil Primary Coil 11 12 17 13 15 16 14 Fig 3 12 Connection of...

Page 42: ...3 Remove loose copper screening and cut off the cotton packing threads as short as possible 4 Strip insulation from the last 3 cm of the brown and the white coaxial cores 3 cm cotton threads Fig 3 13b...

Page 43: ...dly until you reach SERVICE Now push the YES button Selecting and entering Service Code num bers in the commissioning menu provide access to the more advanced functions An explanation of the Service C...

Page 44: ...it The value can not be decreased so in order to obtain a lower value increase past nine to zero then increase to the required number When the required value has been set using the and keys press ENT...

Page 45: ...n Service Code 52 to obtain access to the Commissioning Mode Service From the commissioning menu select SERV by pressing YES key The display shows 000 and PASS Enter a 3 digit passcode as set in Servi...

Page 46: ...ISP 2 2nd compensated value S c m NO w w See Calibration menu Chapter 6 NO NO YES ENT HOLD FAIL YES NO ENT NO MODE YES MODE MEASURE CAL DISPLAY HOLD OUTPUT SET HOLD TEMP SERVICE YES NO YES NO NO YES N...

Page 47: ...DE key once to enter this dialog mode Note that at this stage the user will be prompted for a passcode where this has been previously set up in service code 52 section 5 Calibrate See calibration sect...

Page 48: ...types and values see also section 5 2 4 NaCl is the default compensation and is used for neutral salt solutions Strong solu tions of salts are compensated as are process waters and pure and ultrapure...

Page 49: ...IM 12D08B02 01E Parameter setting 5 3 5 2 2 Range ENT NO MODE YES MODE MEASURE CAL DISPLAY HOLD OUTPUT SET HOLD TEMP SERVICE ENT YES NO YES NO NO NO NO NO NO YES YES NO YES NO YES NO ENT mA mA...

Page 50: ...HOLD active last measured value NO YES NO NO YES NO YES NO NO NO YES NO YES NO YES NO YES NO YES NO NO HOLD YES HOLD OUTPUT SET HOLD TEMP SERVICE MODE MEASURE CAL DISPLAY HOLD HOLD ENT Set HOLD fixed...

Page 51: ...d with a general temperature compensation function based on a sodium chloride salt solution This is suitable for many applications and is compatible with the compen sation functions of typical laborat...

Page 52: ...it will be possible to adjust the display reading to the correct value using ENT keys S c m ENT Briefly WAIT MODE MEASURE CAL DISPLAY HOLD OUTPUT SET HOLD TEMP SERVICE NO ENT YES YES NO YES YES NO NO...

Page 53: ...he page facing the setting tables are concise explanations of the purpose of the service codes Example Service Code 01 Select main parameter for SC for RES With the ENT keys ENT After changing the par...

Page 54: ...ay be changed according the visual description in the right handed page of section 5 2 2 NOTE If the actual cell constant is changed after a calibration or if the entered cell constant differs from pr...

Page 55: ...n Zero calibration with dry cell connected START Press YES to confirm selection WAIT Press YES to start after briefly displaying END WAIT END will be displayed Press YES to return to commissioning mod...

Page 56: ...y resistivity sensors Code 11 T UNIT Celsius or Fahrenheit temperature scales can be selected to suit user preference Code 12 T ADJ With the process temperature sensor at a stable known temperature th...

Page 57: ...es Temperature measuring functions 10 T SENS Temperature sensor Pt1000 0 0 Pt1000 Ni100 1 Pb36 PB36NTC 2 Pt100 3 8k55 8 55k NTC 4 11 T UNIT Display in C or F C 0 0 C F 1 12 T ADJ Calibrate temperature...

Page 58: ...s at the different temperatures must be entered in codes 24 to 28 Code 23 T1 T2 T3 Set the matrix compensation range It is not necessary to enter equal T4 T5 C temperature steps but the values should...

Page 59: ...n section 5 2 5 using ENT keys HCl cation pure water 0 80 C 1 1 HCI Ammonia pure water 0 80 C 2 Morpholine pure water 0 80 C 3 HCl 0 5 0 60 C 4 NaOH 0 5 0 100 C 5 User programmable matrix 9 23 T1 C F...

Page 60: ...BLE The table function allows the configuration of an output curve by 21 steps intervals of 5 The following example shows how the table may be configured to linearize the output with a mA curve mA 1 0...

Page 61: ...nction No burnout 0 0 No Burn Burnout downscale 1 Burnout upscale 2 Pulse burnout 3 33 34 Not used 35 TABLE Output table for mA 0 Linearization table for mA in 5 steps 5 The measured value is set in t...

Page 62: ...soft fail Code 54 E5 LIM Limits can be set for shorted and open measurement Dependent on the main E6 LIM parameter chosen in code 01 the EXA will ask for a resistivity or conductivity value to be set...

Page 63: ...Hard Err 08 Temp sensor shorted Soft Hard 0 1 1 Hard Err 13 USP limit exceeded Soft Hard 0 1 0 Soft 54 E5 LIM E5 limit setting Maximum conductivity value 250 mS Minimum resistivity value 0 004 k E6 L...

Page 64: ...as reference MINUT SECND YEAR MONTH DAY Code 62 ERASE Erase logbook function to clear the recorded data for a fresh start This may be desirable when re commissioning an instrument that has been out o...

Page 65: ...otect 1 enable ADDR Network address Set address 00 to 15 00 61 HOUR Clock setup Adjust to current date and time using MINUT and ENT keys SECND YEAR MONTH DAY 62 ERASE Erase logbook Press YES to clear...

Page 66: ...ved in water to give a precise concentration with the temperature stabilized to the adjusted reference temperature of the instrument default 25 C The conductivity of the solution is taken from literat...

Page 67: ...ES MODE NO YES YES ENT NO MODE YES MODE MEASURE DISPLAY CAL HOLD Press the MODE key The legend CALIB appears and the YES NO key prompt flags flash ENT The cell constant is automatically updated after...

Page 68: ...rrect value is displayed press ENT to enter the change After briefing displaying WAIT the CAL END message appears The calibration is now complete Put the sensor back in the process and press YES HOLD...

Page 69: ...d Contact your nearest Yokogawa service centre for spare parts and instructions 7 2 Periodic maintenance of the sensor NOTE Maintenance advice listed here is intentionally general in nature Sensor mai...

Page 70: ...erature compensation factor while performing manual temperature com pensation as described in section 5 2 5 If the TC factor stays within 0 00 to 3 50 per C it is accept ed Otherwise E2 will be displa...

Page 71: ...emperature sensor open Process temperature too high or too low Check process Pt1000 T 250 C or 500 F Wrong sensor programmed Check model code sensor Pt100 Ni100 T 200 C or 400 F Incorrect wiring Check...

Page 72: ...lues for water quality are based on the Chloride model or the Ammonia model Our job is to develop on line analyzers that make it simple for our customers to meet the water quality that is speci fied a...

Page 73: ...d This activates uncompensated conductivity in the display menu The E13 feature is also enabled For E13 the FAIL flag is triggered when the uncompensated conductivity exceeds the relevant value in the...

Page 74: ...IM 12D08B02 01E Spare Parts 10 1 10 SPARE PARTS See Customer Maintenance Parts List...

Page 75: ...2 075 0 16 080 16 8 085 17 6 090 18 4 095 19 2 100 20 0 mA mA 11 2 User entered matrix data code 23 to 28 Medium T1 data T2 data T3 data T4 data T5 data Code 23 Temperature T1 T5 Code 24 Solution 1 L1...

Page 76: ...0 173 S 0 178 S 0 203 S 0 273 S 0 974 S 60 0 251 S 0 256 S 0 278 S 0 344 S 1 090 S 70 0 350 S 0 356 S 0 377 S 0 439 S 1 225 S 80 0 471 S 0 479 S 0 501 S 0 563 S 1 393 S Morpholine p 0 ppb 20 ppb 50 p...

Page 77: ...as in most cases the temperature sensor is integrated in the conductivity resistivity sensor 11 5 Setup for other functions Current Outputs Transmission signals for the measured parameters can be set...

Page 78: ...ENS 0 Pt1000 11 T UNIT 0 C 12 T ADJ None Temperature compensation functions 20 T R C 25 C 21 T C 1 2 1 C T C 2 2 1 C 22 MATRX None see 5 2 5 23 T1 C T range See sep table 11 2 24 L1xT1 Cond C1 See sep...

Page 79: ...il Err 05 1 hard fail Err 06 1 hard fail Err 07 1 hard fail Err 08 1 hard fail Err 13 0 soft fail 54 E5 LIM 250 mS 0 004 k E6 LIM 1 000 S 1 0 M 55 0 0 Off 100 100 0 56 DISP 0 Auto ranging SC 2 xx xxM...

Page 80: ...Check process Pt1000 T 250 C or 500 F Wrong sensor programmed Check model code sensor Pt100 Ni100 T 200 C or 400 F Incorrect wiring Check connections and cable 8k55 T 10 C or 10 F PB36 T 20 C or 0 F E...

Page 81: ...nufacturer Distributor Tag Descriptor Message Date Device id Write protect Universal revision Transmitter revision Software revision Hardware revision Polling address Req preambles Device setup Primar...

Page 82: ...ans Upper rangeval 1 Ref Temp 2 TC1 type 3 TC2 type 4 Matrix table 1 Auto Ret 2 E5 lim 3 E6 lim 4 Percent 5 Fmt 6 USP 7 Passcodes 1 mA func 2 Burn func 3 mA table 1 Maintenance 2 Commissioning 3 Servi...

Page 83: ...ed for compatibility The SC202G is not intrinsically safe explosionproof so never install it in a hazardous area T1 eps Use of Distoributor PH201G No use of contact output Use of contact output Conduc...

Page 84: ...cable of OD 6 to 12mm The cable length is Max 2000m also the minimum operating voltage of conductivity transmitter must be obtained 3 Conduct grounding without fail on the conductivity transmitter Gr...

Page 85: ...Weidmuller Co Ltd made H0 34 10 H0 5 12 H1 12 H1 5 12S Screw terminal option TB Ring shaped or fork shaped crimp contact Crimp contact shown as the figures under this table which meets M3 screw 1 35...

Page 86: ...at use fixed cables and the ones with separate cables To connect sensors with fixed cables simply match the terminal numbers in the instrument with the iden tification numbers on the cable ends For de...

Page 87: ...n the constant setting only accepts 1 or 2 12 4 2 Temperature sensor service code 10 Code 10 T SENS Selection of the temperature compensation sensor The default selection is the PT1000 sensor which gi...

Page 88: ...value On the parameter setting screen you should ignore the unit such as cm and cm Example When E5LIM is 250 mS cm and the detector has a cell constant of 10 cm 1 then 250 mS x 10 cm 1 2500 mS cm 12...

Page 89: ...box 1 temperature 960 9 Decade resistance box 2 conductivity 10 DC source 24 VDC 3 1 Insulation Resistance Test As for the PH202G follow the instructions below 1 Apply 500 V DC between the power suppl...

Page 90: ...10 and check the data display The resistance must be within the range shown in Table 3 3 Press the ENT key The message display will show RES 2 4 Set decade resistance box 2 to 100 and check the data d...

Page 91: ...SENSOR G 11 12 14 13 15 16 24V DC 100 DC source DC Decade Box 1 Note 1 Cable connected to sensor input should be conductivity detector cable of length 2 1 0 1 m Connect pins 13 and 14 also 15 and 16...

Page 92: ...IM 12D08B02 01E 3 4 Appendix...

Page 93: ...tion of a test is needed turn off the power to the transmitter turn on the power again and enter the inspection mode to restart the tests z Set the equipment as follows Decade resistance box 1 tempera...

Page 94: ...ce Data display C 960 9 10 0 3 1289 8 75 0 3 1721 6 190 0 3 1904 6 240 0 3 This item is checked under measurement mode 3 5 Resistance Conductivity Indication Check 1 Check that in the message display...

Page 95: ...k RES 5 100 k 100 0 0 5 k Figure 1 Testing Circuit and Test Equipment SC202S SUPPLY SENSOR G 11 12 14 13 15 16 24V DC 100 DC source DC Decade Box 1 Note 1 Cable connected to sensor input should be con...

Page 96: ...IM 12D08B02 01E 3 8 Appendix...

Page 97: ...est follow the instructions in Section 3 2 z Use test equipment shown in Figure 1 or equivalent for the tests 3 1 Insulation Resistance Test 1 Apply 500 V DC between the power supply terminals shorted...

Page 98: ...instruments as shown in Figure 1 and set them as follows Decade resistance box 1 100 Decade resistance box 2 10 In this state change the resistance value of the decade resistance box 2 as shown in Ta...

Page 99: ...IM 12D08B02 01E Appendix 3 11 3 3 QIS 12D08B02 61E Figure 1 Testing Circuit and Test Equipment...

Page 100: ...IM 12D08B02 01E 3 12 Appendix...

Page 101: ...est follow the instructions in Section 3 2 z Use test equipment shown in Figure 1 or equivalent for the tests 3 1 Insulation Resistance Test 1 Apply 500 V DC between the power supply terminals shorted...

Page 102: ...6 240 0 3 C 3 4 Conductivity Indication Check Connect the instruments as shown in Figure 1 and set them as follows Decade resistance box 1 100 Decade resistance box 2 10 In this state change the resi...

Page 103: ...t specified by Yokogawa In the tests of Item 3 3 to 3 4 check the communication function using Profibus communication SC202 G 11 12 13 Decade Resistance Box 1 Profibus Equipment Specified by Yokogawa...

Page 104: ...IM 12D08B02 01E 3 16 Appendix...

Page 105: ...1 Epoxy polyester Coating 4 L9811FV 2 Cable Gland Assembly 5 K9660AQ 1 Flat Cable 6 A1726JD 1 Pin Terminal Unit 3 terminals type 7 K9184AA 1 Screw Terminal Unit when TB specified 8 K9661HR 2 Stud 9 A...

Page 106: ...n Code PM 3 Item Parts No Qty Description 1 K9171SS 1 Universal Mount Set U K9311BT 1 Tag Plate SCT 2 K9311KA 1 3 K9311KG 1 4 K9660JA 1 4 Fitting Assembly PM Hood Assembly H Hood Assembly H2 1 Pipe Wa...

Page 107: ...s 1 For mA HART Non incendive 3 Housing Assembly 1 Polyurethane Coating 1 Epoxy polyester Coating 4 L9811FV 2 Cable Gland Assembly 5 1 Flat Cable 6 1 Pin Terminal Unit 3 terminals type 8 2 Stud 9 Anal...

Page 108: ...n Code PM 3 Item Parts No Qty Description 1 K9171SS 1 Universal Mount Set U K9311BT 1 Tag Plate SCT 2 K9311KA 1 3 K9311KG 1 4 K9660JA 1 4 Fitting Assembly PM Hood Assembly H Hood Assembly H2 1 Pipe Wa...

Page 109: ...A HART Specification FM Non incendive design corrected P 2 10 Control Drawing for mA HART Specification CSA corrected P 2 11 Control Drawing for FF PB Specification IECEx corrected P 2 12 Control Draw...

Page 110: ...gure 1 1 P 2 2 Some revision of I Regulatory compliance description for EMC revised P 2 3 to 2 4 Some revision of IECEx Intrinsically safe description Zone 0 added and NEPSI Certification added to pag...

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