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IM 12D7B3-E-E

3-3 Installation and wiring

3-2. Preparation

Refer to figure 3-4. The power/output connections and the sensor connections should be made in

accordance with the diagram on page 3-6. The terminals are of a plug in style for ease of mounting.

To open the EXA 202 for wiring:

1. Loosen the four frontplate screws and remove the cover.

2. The terminal strip is now visible.

3. Connect the power supply. Use the gland on the left for this cable.

4. Connect the sensor input, using the gland on the right (see fig. 3-5). Switch on the 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 optional hose connection is used to guide the cables coming from an immersion fitting through a

protective plastic tubing to the transmitter.

3-2-1. Cables, terminals and glands

The SC202 is equipped with terminals suitable for the connection of finished cables in the size range: 0.13

to 2.5 mm (26 to 14 AWG). The glands will form a tight seal on cables with an outside diameter in the

range of 7 to 12 mm (9/32 to 15/32 inches).

Figure 3-5. Glands to be used for cabling

SENSOR

CABLE GLAND

POWER/OUTPUT

CABLE GLAND

GROUNDING TERMINAL

Содержание EXA SC202G

Страница 1: ...YOKOGAWA User s Manual Model SC202G S Conductivity and Resistivity Transmitter IM 12D7B3 E E 10th Edition...

Страница 2: ...Area Non Incendive SC202S N 3 5 3 4 Wiring of power supply 3 5 3 4 1 General precautions 3 5 3 4 2 Connection of the power supply 3 5 3 4 3 Switching the instrument on 3 5 3 5 Sensor wiring 3 6 3 6 S...

Страница 3: ...ne calibration checks 8 2 8 1 2 On line impedance checks 8 2 9 USP Water Purity Monitoring 9 1 9 1 What is USP 9 1 9 2 What is conductivity measurement according to USP 9 1 9 3 USP in the SC202 9 1 9...

Страница 4: ...d by Yokogawa Warranty and service Yokogawa products and parts are guaranteed free from defects in workmanship and material under normal use and service for a period of typically 12 months from the da...

Страница 5: ...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 1 9 2 5 17 SC 57 exceeded HOLD during m...

Страница 6: ...a 10 to 40 C 0344 II 2 1 G RANGE PROGRAMMABLE for Ta 10 to 55 C for Ta 10 to 40 C Amersfoort The Netherlands N200 CONDUCTIVITY RESISTIVITY TRANSMITTER FF TYPE 111 10 TO 55 C SUPPLY OUTPUT AMB TEMP Ta...

Страница 7: ...EXA hardware is optionally available to allow wall pipe or panel mounting Selecting a proper installation site will permit ease of operation Sensors should normally be mounted close to the transmitter...

Страница 8: ...A to signal failure See Fig 2 1 and 2 2 F Temperature compensation Automatic for temperature ranges mentioned under C inputs Reference temp programmable from 0 to 100 C or 30 210 F default 25 C G Comp...

Страница 9: ...ery for clock H Watchdog timer Checks microprocessor I Automatic safeguard Return to measuring mode when no keystroke is made for 10 min J Operation protection 3 digit programmable password K Regulato...

Страница 10: ...nsor s are of a passive type to be regarded as simple apparatus devices which comply with clause 1 3 of the EN 50014 Electrical data of the EXA SC202S Supply and output circuit terminals and Maximum i...

Страница 11: ...imum input power Pi 1 2 W Maximum input power Pi 5 32 W Effective internal capacitance Ci 737 pF Effective internal i nductance Li 2 6 H Sensor input circuit Maximum output voltage Uo 14 4V Maximum ou...

Страница 12: ...202S Supply and output circuit terminals and Maximum input voltage V max 31 5 V Maximum input current I max 100 mA Maximum input power P max 1 2 W Effective internal capacitance C i 22 nF Effective in...

Страница 13: ...t Isc 12 8 mA Maximum allowed external capacitance Ca 103 nF Maximum allowed external inductance La 200 mH Any CSA approved I S interface may be used that meets the following requirements Vmax 24 V or...

Страница 14: ...r P i 1 2 W Maximum allowed external capacitance C a 103 nF Effective internal capacitance C i 22 nF Maximum allowed external inductance L a 200 mH Effective internal inductance L i 22 H If Hand Held...

Страница 15: ...and Sensor input circuit terminals 11 through 16 Maximum input voltage V max 31 5 V Maximum output voltage V t 14 4 V Maximum input power Pi 1 2 W Maximum output current I t 12 8 mA Effective internal...

Страница 16: ...nd remain intrinsically safe considering faults must be equal to or greater that the voltage Voc Vt the current Ioc It and the power Poc Pt which can be provide de by the FM approved FISCO barrier In...

Страница 17: ...tance La 200 mH Any FM Approved barrier may be used that meets the following requirements Voc or Vt 24 V Ioc or It 250 mA Poc or Pt 1 2 W Ca 737 pF Ccable La 2 6 H Lcable When installing this equipmen...

Страница 18: ...uipment fol low the manufacturers installation drawing Installation shall be in accordance with Article 501 4 B of the National Electrical Code ANSI NFPA 79 Nonincendive field wiring may be installed...

Страница 19: ...IM 12D7B3 E E Specifications 2 12...

Страница 20: ...ntenance procedures are possible avoiding corrosive environments The ambient temperature and humidity of the installation environment must be within the limits of the instrument specifications See cha...

Страница 21: ...rsal pipe wall mounting wall mounting pipe mounting pipe mounting vertical horizontal 2x 6 5 0 26 4x 10 0 4 200 7 87 70 2 75 56 2 20 Installation and wiring 3 2 Figure 3 4 Internal view of EXA wiring...

Страница 22: ...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...

Страница 23: ...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...

Страница 24: ...erating 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 NOT be connected to ground at th...

Страница 25: ...tification numbers on the cable ends The separate sensors and the WU40 LHhh cables are also numbered but the numbers do not always match with the terminal numbers in the instrument Figure 3 9 indicate...

Страница 26: ...Figure 3 11 Terminal identification label 3 7 1 Sensor cable connections using junction box BA10 and extension cable WF10 Where a convenient installation is not possible using the standard cables betw...

Страница 27: ...0 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 W...

Страница 28: ...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...

Страница 29: ...to set such values as the output ranges and hold features It also gives access to the service menu See table 4 1 LEVEL 3 Service For more advanced configuration selections press the button marked the...

Страница 30: ...nit 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...

Страница 31: ...n Service Code 52 to obtain access to the Commissioning Mode Service From the commissioning menu select Service by pressing YES key The display shows 000 and PASS Enter a 3 digit passcode as set in Se...

Страница 32: ...nsated 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 NO NO YES NO NO...

Страница 33: ...age the user will be prompted for a passcode where this has been previously set up in service code 52 section 5 Calibrate See calibration section 6 Display setting See operation section 4 Hold Manuall...

Страница 34: ...n types and values see also section 5 2 4 NaCl is the default compensation and is used for neutral salt solutions Strong solutions of salts are compensated as are process waters and pure and ultrapure...

Страница 35: ...IM 12D7B3 E E 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 Parameter setting 5 3 mA mA...

Страница 36: ...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 valu...

Страница 37: ...ing equation Kt Kref x 100 T Tref Kref In which Temperature compensation factor in C T Measured temperature C Kt Conductivity at T Tref Reference temperature C Kref Conductivity at Tref 3 Manual tempe...

Страница 38: ...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 YES NO NO NO NO YES NO...

Страница 39: ...e 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 para...

Страница 40: ...or if the entered cell constant differs from previous value then the message RESET will appear on the second line display After pressing YES the entered value becomes the new nominal and calibrated ce...

Страница 41: ...Press NO to step through choice of 0 100 cm 1 multiplying factors on the second display 0 10xC 1 00xC 0 10xC 10 0xC 100 xC 0 01xC Press YES to select a factor Use ENT keys to adjust MAIN digits 1 000...

Страница 42: ...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 the...

Страница 43: ...ult values Temperature measuring functions 10 T SENS Temperature sensor Pt1000 0 0 Pt1000 Ni100 1 Pb36 2 Pt100 3 8k55 4 11 T UNIT Display in C or F C 0 0 C F 1 12 T ADJ Calibrate temperature Adjust re...

Страница 44: ...es 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...

Страница 45: ...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 S...

Страница 46: ...ice Code 35 mA 5 5 mA output functions Code 31 OUTP F For the SC202 the output may be chosen as linear to input or configured in a 21 point table to a particular linearization Enable the table setup i...

Страница 47: ...ction 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 th...

Страница 48: ...n 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 value to be set is the uncompensated conductivity resistivity...

Страница 49: ...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...

Страница 50: ...a fresh start This may be desirable when re commissioning an instrument that has been out of service for a while 5 8 General Code 70 LOAD The load defaults code allows the instrument to be returned t...

Страница 51: ...ss 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 logbook data 63 69 Not used Code...

Страница 52: ...dissolved 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 l...

Страница 53: ...ES 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 the calibration...

Страница 54: ...isplayed 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 will be displaye...

Страница 55: ...r 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 maintenance is h...

Страница 56: ...rature compensation factor while performing manual temperature compensation as described in section 5 2 5 If the TC factor stays within 0 00 to 3 50 per C it is accepted Otherwise E2 will be displayed...

Страница 57: ...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...

Страница 58: ...s 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 specified as st...

Страница 59: ...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...

Страница 60: ...ware K1542KW SCT Stainless steel tag plate K1544ST H Hood for sun protection K1542KG 9 4 5a b 10 11 2 12 7 8 6 1 3a b N2 00 CON DUC TIV ITY RES IST IVIT Y TRA NSM ITTE R 24V DC 4 TO 20 mA DC 10 TO 55...

Страница 61: ...2 075 0 16 080 16 8 085 17 6 090 18 4 095 19 2 100 20 0 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 Code...

Страница 62: ...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 pp...

Страница 63: ...or 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 s...

Страница 64: ...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...

Страница 65: ...l 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 c...

Страница 66: ...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...

Страница 67: ...Device id Write protect Universal revision Transmitter revision Software revision Hardware revision Polling address Req preambles Device setup Primary value Analog output Lower rangeval Upper rangeval...

Страница 68: ...to 0 005cm 1 11 9 5 Changes made by software release 2 3 Default Temperature Compensation Matrix loaded to prevent impossible values after a loading all parameters from DCS 11 9 6 Changes made by soft...

Страница 69: ...re that all the relevant parts are present and correctly fitted 3 Safety Test The minus and the external ground terminal of the housing are connected to a Voltage generator 100 VDC The measured impeda...

Страница 70: ...to 25 mA resolution 1 A accuracy 0 1 Connect the SC202 as shown in Figure 1 Set box 1 to simulate 25 oC 1097 3 U for Pt1000 Before starting the actual test the SC202 and peripheral testing equipment...

Страница 71: ...IM 12D7B3 E E 12 1 Test Certificate...

Страница 72: ...30265 United States Tel 1 770 253 7000 Fax 1 770 251 2088 www yokogawa com us YOKOGAWA ELECTRIC ASIA Pte Ltd 5 Bedok South Road Singapore 469270 Singapore Tel 65 241 9933 Fax 65 241 2606 www yokogawa...

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