User’s Manual Model SC450G [Style: S2] Conductivity / Resistivity Converter IM 12D08N05-01E 4th Edition
Note This page may be referred to when reading pages where subsequent submenu screens are shown in the text. Connection to the relevant submenu screen is indicated by a doted line with an arrow. Note that screens in the text are typical examples and actual screens may differ depending on the set parameters. Commissioning Connection to the relevant submenu screen is indicated by a doted line with an arrow. Measurement setup Measure Conductivity only Configure sensor Temperature settings Temp.
PREFACE Electrostatic discharge The EXAxt converter contains devices that can be damaged by electrostatic discharge. When servicing this equipment, please observe proper procedures to prevent such damage. Replacement components should be shipped in conductive packaging. Repair work should be done at grounded workstations using grounded soldering irons and wrist straps to avoid electrostatic discharge.
ii The following safety symbols are used on the product as well as in this manual. DANGER This symbol indicates that an operator must follow the instructions laid out in this manual in order to avoid the risks, for the human body, of injury, electric shock, or fatalities. The manual describes what special care the operator must take to avoid such risks.
iii TABLE OF CONTENTS PREFACE 1. INTRODUCTION AND GENERAL DESCRIPTION......................................................1 1-1. Instrument check....................................................................................................1 1-2. Application..............................................................................................................1 2. GENERAL SPECIFICATIONS OF EXAxt SC450G......................................................2 3. INSTALLATION AND WIRING.............
iv 4. OPERATION OF EXAxt SC450G...............................................................................15 4-1. Main display functions..........................................................................................15 4-2. Trending graphics.................................................................................................15 4-3. Zoom in on details................................................................................................15 4-3-1. Actual mA1 .................
v 6. CALIBRATION............................................................................................................36 6-1. General.................................................................................................................36 6-2. Cell constant manual............................................................................................36 6-3. Cell constant automatic........................................................................................36 6-4.
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1 The Yokogawa EXAxt SC450G is a converter designed for industrial process monitoring, measurement and control applications. This instruction manual contains the information needed to install, set up, operate and maintain the unit correctly. This manual also includes a basic troubleshooting guide to answer typical user questions. Yokogawa can not be responsible for the performance of the EXAxt converter if these instructions are not followed. 1-1.
2 2. GENERAL SPECIFICATIONS OF EXAxt SC450G A) Inputs specifications : Two or four electrodes measurement with square wave excitation, using max 60m (200ft) cable (WU40/WF10) and cell constants from 0.005 to 50.0 cm-1 B) Input ranges Conductivity : 0.000 µS/cm - 2000 mS/cm Minimum : 1µS (underrange 0.00 µS x c.c.) Maximum : 200 mS (overrange 2000 mS x c.c.) Resistivity Minimum Maximum : 0.0 Ω•cm - 1000 MΩ•cm : 5Ω / c.c. (underrange 0.0 Ω/c.c.) : 1MΩ / c.c. (overrange 1000 MΩ/c.c.
3 IM 12D08N05-01E 2 GENERAL SPECIFICATIONS Hold : Contact can be used to signal the HOLD situation. Fail safe : Contact S4 is programmed as a fail-safe contact (*)Note: When contact output current is more than 4 Amps, ambient temperature should be less than 40 ºC. F) Contact input : Remote range switching to 10 times the programmed range. Contact open : If impedance > 100 kΩ: Range 1 (“Programmed range for mA1 output" is "Range 1.
4 O) Safety and EMC conforming standards , Safety : EN 61010-1 CSA C22.2 No.61010-1 UL 61010-1 FM3611 Class I, Div.
5 3. INSTALLATION AND WIRING 3-1-2. Mounting methods Refer to figures 3-2 and 3-3. Note that the EXAxt converter has universal mounting capabilities: • Panel mounting using optional brackets • Surface mounting on a plate (using bolts from the back) • Wall mounting on a bracket (for example, on a solid wall) • Pipe mounting using a bracket on a horizontal or vertical pipe Size nominal 50A Unit: mm (inch) Hood (Option code: /H5, some cutout on the left side cover) 184(7.2") 220(8.66") 144(5.67") 72(2.
6 Unit: mm (inch) +1 138 0 (5.43") min.195(7.75") min.185 (7.25") +1 138 0 (5.43") 138(5.43") M6 138 (5.43") M5 M6 Figure 3-2. Option /PM: panel mounting diagram (Note) When option code "/UM" is specified, universal pipe/wall/pannel mounting kit are supplied--same as option code "/U" and "/PM" both specified. wall mounting 13 (0.51") 80 (3.15") pipe mounting (vertical) pipe mounting (horizontal) 2x Ф6.5 (0.26") 200 (7.87") 4x Ф10 (0.4") 35 (1.38") 15 (0.6") 70 (2.75") 154.5 (6.
7 WARNING This connector for software must be used only by Yokogawa’s service personnel. connector for (future) software input terminal block potentiomerter LCD bracket protective shield bracket 6 X M20 glands Note: SC450G-A(D)-U The enclosure is provided with stoppers in stead of M20 cable glands for the unused holes. These stoppers must be removed and replaced by FM approved conduit fittings in accordance with good installation practice. Also see Appendix 7, Control drawing for FM approval.
8 3-2-2. Cables, Terminals, glands and conduit adapter SC450G-A(D)-A The SC450 is supplied with terminals suitable for the connection of finished wires in the size range of 0.13 to 2.5 sq.mm. ( 26 to 14 AWG). The cable glands supplied will form a tight seal on cables with an outside diameter of 6 to 12 mm (0.24 to 0.47 inches). Unused cable entry holes must be sealed with cable glands including the blind plugs supplied.
9 Adapter for conduit work When protect the cable with a conduit, replace the M20 cable gland with a cable gland of optional conduit adapter, and set the adapter shown as Figure 3-5c. Unit: mm(inch) Nut Packing G1/2 screw (/AFTG), 1/2 NPT screw (/ANSI) M20 screw (/AM20) Adapter Figure 3-5c. Conduit adapter FRONT GLANDS REAR GLANDS Sensor mA1 HART output signals Power Contact output S1 S2 S3 Contact output mA2 S4 Contact input Figure 3-6. System configuration 3-3.
10 3-3-3. AC power Connect terminal L to the phase line of the AC power and terminal N to the zero line. See figure 3-8 for the power ground. This is separated from input ground by a galvanic isolation. WARNING Fuse replacement should be performed only by a qualified service personnel. See Sec.7. MAINTENANCE, Fuse 3-3-4. DC power Connect terminal 1 to the positive outlet and terminal 2 to the negative outlet. This is separated from input ground by a galvanic isolation.
11 (M4 screw) 2 1 L POWER 100-240 VAC/15 VA/ 50/60Hz FUSE: 500 mA/250 VAC/T AC (M4 screw) Figure 3-8-a. External grounding 3-4. Wiring the contact signals 3-4-1. General precautions The contact output signals consist of voltage-free relay contacts for switching electrical appliances (SPDT). They can also be used as digital outputs to signal processing equipment (such as a controller or PLC).
12 3-6. Wiring of sensors General precautions Generally, signals from sensors are at low voltage and current level. Thus a lot of care must be taken to avoid interference. Before connecting sensor cables to the converter make sure that following conditions are met: – the sensor cables are not mounted in tracks together with high voltage and or power switching cables – only standard sensor cable or extension cable is used – the converter is mounted within the distance of the sensor cables (max.
13 11 12 13 14 15 16 11 12 13 14 15 16 t t 3-6-1. Sensor cable connections using junction box (BA10) and extension cable (WF10) Where a convenient installation is not possible using the standard cables between sensors and converter, a junction box and extension cable may be used. The Yokogawa BA10 16 15 14 14 17 13 12 11 11 12 13 17 15 16 14 14 BA10 junction box and the WF10 extension cable should be used.
14 Extension cable may be purchased in bulk quantities or in pre-finished lengths. In the case of bulk quantities cut to length, then it is necessary to terminate the cable as shown below. 4. Strip insulation from the last 3 cm of the brown, and the white coaxial cores. 5. Extract the coaxial cores from the braid, and trim off the black (low-noise) screening material as short as possible. 6. Strip 9 cm of the outer (black) insulating material, taking care not to cut or damage internal cores.
15 4. OPERATION OF EXAxt SC450G 4-1. Main display functions Tag:EXAxt SC450 200.0 25.0 16.64 Go to trend screen + μS/cm Go to zoom screen Go to status screen 4-3. Zoom in on details This button gives access to the diagnostic information of the analyzer. The following messages will appear under normal (default) conditions: Zoom in on Details - Home key back to mainscreen. - One level up. Go to maintenance screen Figure 4-1. Main Display SC 450 Next Next Next - Enter selected data or choice.
16 4-3-1. Actual mA1 = the current output in mA of the first current output, which is defined as mA1. The range and function of this mA output can be set in: Routing: Commissioning >> Output setup >> mA1 4-3-2. Actual mA2 = the current output in mA of the second current output, which is defined as mA2. The range and function of this mA output can be set in: Routing: Commissioning >> Output setup >> mA2 4-3-3. S1/S2/S3/S4 = the current state of contacts 1 to 4.
17 4-3-15. HART Device revision Sometimes the firmware of a device is updated in a way that the communication file (HART DD) need revision too. In this case the revision level is increased by one. The revision level of the HART DD must match the revision level of the Firmware. The revision level is expressed by the first two characters of the filename. The following files should be used when the HART Device revision level is 2. (0201.aot, 0201.fms, 0201.imp, 0201.
18 4-7.
19 4 OPERATION OF EXAxt SC450G IM 12D08N05-01E
20 5. MENU STRUCTURE COMMISSIONING Measurement setup Main parameter Choose the required parameter, either conductivity or resistivity. If the main parameter is changed the instrument will reset main display settings, units and recalculate several values. The menu structure will change accordingly. 5-1. Configure sensor Sensor type Choose the sensor type used. Normally conductivity and/or resistivity measurements are done with 2-electrode type sensors.
21 Conductivity only Resistivity only Conduct.+Concentr Concentration only Measurement setup Measure Conductivity only Configure sensor Temperature settings Temp. Compensation Calibration settings Concentration Enter 5 Menu Parameter Configure Sensor Temp. Comp. Manual Comp. Temp. Coef Temp. Coef Cell constant Reference Temp. Manual Temp. T.C.methods 1 T.C.methods 2 Default Range values min. 0.1 cm-1 0.005 cm-1 25ºC, 77ºF 25ºC, 77ºF 2.10%/ºC, 1.17%/ºF 2.10%/ºC, 1.17%/ºF 0ºC, 32.
22 5-4. Calibration settings Air adjust limit To avoid cable influences on the measurement, a “zero” calibration with a dry sensor may be done. If a connection box (BA10) and extension cable (WF10) are being used, “zero” calibration should be done including this connection equipment. When using a 4-electrode sensor additional connections are required. Temporarily Interconnect terminals 13 & 14 with each other and 15 & 16 with each other before making the adjustment.
23 Measurement setup Measure Conductivity only Configure sensor Temperature settings Temp. Compensation Calibration settings Concentration Enter Concentration measurement is only possible if “measure” in the “Configure sensor” menu is set to “conductivity + concentration” or “Concentration only”. 5 MENU STRUCTURE COMMISSIONING Menu Parameter Calibration Air adjust c.c. high c.c. low Stabilization time Calib. interval Concentr. Table Table Default Range values min. 10.
24 5-6. mA output setup The general procedure is to first define the function (control, output, simulate, off) of the output and second the process parameter associated to the output. Available process parameters depend on the selected “main parameter” and “measure”.
25 5 MENU STRUCTURE COMMISSIONING mA2 similar structure to mA1 Menu Parameter Default Range values min. max. mA1 (control) mA1 (output) mA1 (simulate) Expire time Damping time Simulation perc. 0.0 sec. 0.0 sec. 50% 0 sec. 0 sec. 0% 1800 sec. 3600 sec. 100% PID-control PID-control PID-control PID-control PID-control PID-control PID-control Setpoint Setpoint Range Range Manual Reset I-time D-time 250.0 µS/cm 25ºC/ºF 50.00 µS/cm 10ºC/ºF 0% 3600 sec. 0 sec.
26 Damping time The response to a step input change reaches approximately 90 percent of its final value within the damping time. applies. For calibration, it is up to the user if HOLD is enabled or not. Setpoint Hys. SC Expire time If the output is over 100% for longer than the expire time, the output will return to 0%. range 100% off Direct manual reset 0% Delay time set process point value range 100% 0% Duty cycle 50% 50 5-7.
27 PI-control S1 Setpoint Range (proportional) Direction I-time 250.0μS/cm 50.00μS/cm Reverse 3600 s Enter Control Alarm Hold USP Fail Simulate Off 5 MENU STRUCTURE COMMISSIONING S2, S3, S4 Similar structure to S1 Menu Parameter Default Range values min. PID-control S1 Setpoint 250.0 µS/cm - inf + inf PID-control S1 Range 50.0 µS/cm - inf + inf PID-control S1 PID-control S1 PID-control S1 Manual Reset I-time D-time 0% 3600 s 0s 0% 1s 0s 100% 3600 s 60 s Duty cycle Pulse freq.
28 5-10. Water for Injection Monitoring (USP 645 and EU 0169). Setting up EXA SC450 for WFI monitoring 1. A function “USP limit exceeded” is defined as an error code on sec. 5-12, Errors 2/3. This can be set to off/warn/fail according to your requirement. This function can be modified by the function “USP safety margin” in %. This is a percentage of the WFI conductivity value at that temperature that serves as safety margin. This is independent of what is being measured.
29 S2, S3, S4 Similar structure to S1 5 MENU STRUCTURE COMMISSIONING Disabled Factor 10 mA1 Menu Parameter Default Range values min. max.
30 5-12. Error configuration Errors 1/3 ~ 3/3 Errors are intended to notify the user of any unwanted situations. The user can determine which situations should be classified as: FAIL, immediate action is required. The process variable is not reliable. WARN, the process variable processes by the converter is still reliable at this moment, but maintenance is required in the near future. “FAIL” gives a flashing “FAIL” flag in the main display.
31 Errors 2/3 Temperature too high Temperature too low Polarization detect Calibr. time exceeded USP limit exceeded Warn Warn Warn Off Off Enter 5 MENU STRUCTURE COMMISSIONING Errors 2/3 Temperature too high Temperature too low Polarization detect Calibr. time exceeded USP limit exceeded Warn Warn Warn Off Off Enter Menu Parameter Default Range values Low High Errors1/3 Errors1/3 Errors1/3 Errors1/3 250 mS 1.000 µS 4Ω 1MΩ 2.000 S 2.000 S 10MΩ 10MΩ Cond. High Limit Cond. Low Limit Res.
32 5-14. Advanced setup Defaults The functionality of the EXAxt allows to save and load defaults to come to a known instrument setting. The EXAxt has both factory and user defined defaults. After a “load default” the instrument will reset. The following parameters are not included in the defaults 1. X-axis timing 2. Auto return (10 min / disabled) 3. Tag 4. Passwords 5. Date and time 6. Language 7. The contents of all logbooks 8.
33 5 MENU STRUCTURE COMMISSIONING Menu Parameter Default Range values Low High HART 0 15 Network address 0 IM 12D08N05-01E
34 5-15. Display setup Main display The main display consists of three lines with Process Values. Each line is user definable with the restriction that each line should have a different Process Value. The default settings can be defined here. By pressing one of the two smaller process values, this will become the main process value in the main screen. Autoreturn will cause the main display to go to default setting. See also 4-6 Secondary to Primary Value display Switch.
35 5 MENU STRUCTURE COMMISSIONING Menu Parameter Default Range values Low High Y-axis Y-axis Y-axis Y-axis Y-axis Y-axis 0 µS/cm 500 µS/cm 0 µS/cm 500 µS/cm 0ºC, 0ºF 100ºC, 100ºF + + + + + + Conduct low Conduct high Conduct 2 low Conduct 2 high Temp. low Temp.
36 6. CALIBRATION 6-1. General The nominal cell constant of a conductivity sensor is determined at the construction stage, because it is a factor set by the size of the electrodes, and their distance apart. A conductivity sensor does not change its cell constant during operation, as long as it remains undamaged, and clean. It is therefore vital that in any calibration check the first step should be to clean the sensor, or at least check its cleanliness.
37 6-7. Temperature calibration In order to make the most accurate measurements, it is important to have a precise temperature measurement. This affects the display of temperature, and the output signal when used. More important, however, is the temperature compensation, and calibration accuracy. The temperature of the sensor system should be measured independently with a high precision thermometer. The display should then be adjusted to agree with the reading (zero offset calibration only).
38 7. MAINTENANCE 7-1. Periodic maintenance The converter requires very little periodic maintenance, except to make sure the front window is kept clean in order to permit a clear view of the display and allow proper operation of the touchscreen. If the window becomes soiled, clean it using a soft damp cloth or soft tissue. To deal with more stubborn stains, a neutral detergent may be used.
39 Touchscreen adjustment CAUTION A few years after using, the touchscreen may deviate from the correct position due to aging deterioration of the touchscreen. When that happens, turn off power then on again. The touchscreen will be calibrated automatically to the correct touch position at power on. It is recommended to turn off power then on again when periodic maintenance. CAUTION Do not turn on power with the touchscreen pressed, otherwise inaccurate touch position will occur.
40 8. TROUBLESHOOTING 8-1. General The EXAxt is a microprocessor-based analyzer that performs continuous self-diagnostics to verify that it is working correctly. Error messages resulting from faults in the micro-processor systems itself are monitored. Incorrect programming by the user will also result in an error, explained in a message, so that the fault can be corrected according to the limits set in the operating structure.
41 9. QUALITY INSPECTION Quality Inspection Standards 1. SC450G Conductivity or Resistivity Converter Scope This inspection standard applies to the SC450G Conductivity or Resistivity Converter. 2. Inspection Items 2.1 *2.2 *2.3 2.4 2.5 Insulation resistance test Dielectric strength test Sensor signal input test Temperature indication check Current output test Note: Items marked with an asterisk (*) may only be confirmed by a test certificate. 3. Inspection Methods, Standards and Conditions z 3.
42 2/3 This test is done on the “HIF” display of “Factory Mode”. a. Touch the [Setup] icon. b. Touch the [Commissioning]. c. Touch the [Advanced setup]. d. Touch the [Factory adjustment]. e. Enter a password. f. Select the [Factory Mode] in “Key.” g. Select the [HIF] in “Execute.” When the resistance of the decade resistance box 2 to the corresponding value “RANGE1” to “RANGE5” in Table 1 is set, check the data display and the value must be within the range shown in Table 1.
43 3/3 After all tests are completed, a. Touch the [Exit] twice to return to the “Service” display. b. Select “Normal” in “Key”. c. Touch the [Home] icon to return to the initial display.
44 IM 12D08N05-01E
45 10. SPARE PARTS See Customer Maintenance Parts List.
46 APPENDICES Appendix 1 Temperature compensation The conductivity of a solution is very dependent on temperature. Typically for every 1°C change in temperature the solution conductivity will change by approximately 2%. The effect of temperature varies from one solution to another and is determined by several factors like solution composition, concentration and temperature range. A coefficient (α) is introduced to express the amount of temperature influence in % change in conductivity/°C.
47 B. Calculation of temperature coefficient factor (with two known conductivity values at different temperatures) Measure the conductivity of the liquid at two temperatures, one below the reference and above the reference temperature with the temperature coefficient set to 0,00%/°C and use the following equation to calculate a temperature coefficient (α).
48 Checking When the temperature coefficient already set is accurate, the conductivity to be displayed must be constant regardless of liquid temperature. The following check will make sure that the temperature coefficient already set is accurate. If, when the liquid temperature is lowered, a larger conductivity value is indicated, the temperature coefficient already set is too small. The opposite also applies.
49 Temperature compensation matrix. 1. A minimum number of values is required to make interpolation possible. The highlighted values marked as are mandatory to enter. Sol1 .... Solx .... Sol10 2. Tref S1Tr T1 S1T1 .... Tx .... T10 S1T10 SxTx C10 S10Tr S10T1 S10T10 Tref (reference temperature) is defined in the Temperature Compensation menu. If Tref is between T1 and T10 then the value of Tref needs to be entered as Tx (T2....T9) Sol1 .... Solx .... Sol10 3.
50 TDS readings The concept of Total Dissolved Solids (TDS) is widely used as an indication of the total solute concentration in water and is a widely accepted water quality standard. The determination is simply made by evaporation and weighing the residue. As the heat treatment converts the chemical properties of the solution, some solutes that contribute to the total conductivity will not be found in the residue. Also some combinations of solutes will become volatile at the drying temperature.
51 Appendix 3 Calibration solutions for conductivity Note! This section should be read in conjunction with the calibration section (Chapter 6) and the maintenance section (Chapter 7). The calibration (cell constant) of a sensor does not change unless the sensor is damaged. It can also appear to change because of coating of the electrodes, or partial blockage. Because these changes should be handled as described in the maintenance section, it does not make sense to regularly recalibrate the SC450G.
52 If it is more convenient, the user may make solutions from Sodium Chloride (NaCl or common table salt) with the help of the following relationship table. This table is derived from the IEC norm 60746-3. Table 11-3. NaCl values at 25 °C Weight % 0.001 0.003 0.005 0.01 0.03 0.05 0.1 0.3 0.5 1 3 5 10 mg/kg 10 30 50 100 300 500 1000 3000 5000 10000 30000 50000 100000 Conductivity 21.4 µS/cm 64.0 µS/cm 106 µS/cm 210 µS/cm 617 µS/cm 1.03 mS/cm 1.99 mS/cm 5.69 mS/cm 9.48 mS/cm 17.6 mS/cm 48.6 mS/cm 81.
53 Appendix 4 Sensor selection for the EXAxt SC450G Yokogawa supplies the following sensors, and their application is briefly described. All are compatible with the EXAxt SC450G, and the user must be aware of the sensor configuration for 2 or 4 electrodes, in order to set the converter correctly. SC42-SP34 (&SX42-SX34) cc = 0.01 cm-1 2-electrode sensor This sensor is the first choice for pure and ultra pure water measurements. From 0.055µS/cm up to 100µS/cm this is a perfect choice.
54 SC42-EP04 cc = 10 cm-1 2-electrode sensor This sensor is in the program for historical reasons. It makes little sense to select this sensor for new applications. It was used mostly for process water and light process solutions. The operating range can be 1to 100 mS/cm with higher readings having a very high risk of polarization. The SC42-EP18 or the SC42-EP08 (4-el sensors) covers these ranges with much greater certainty of avoiding polarization.
55 Appendix 5, How to enter the cell constant for the SC21¨G, SC8SG, and SC4AJ When install a new sensor, or replace a new one, put the cell constant manually as below. (1) In the case that the only cell constant is mentioned on the text plate of the sensor (SC211G, SC8SG, SC4AJ). Enter the cell constant directly. (2) In the case that the deviation of a nominal cell constant (± X.X%) is mentioned on the text plate of the sensor (SC210G). When the nominal cell constant is 5 cm-1 and the deviation (CORR.
56 Appendix 6, HART HHT (275/375) Menu structure Online menu Level 1 menu Process values Primary value (SC/RES/Conc.) Secondary value (Temp.) Tertiary value (SC/RES/Cond)* Level 2 menu Zoom Zoom sensor Fact CC Adj CC Method SC1 Method SC2* Pol% Ohms USP% Zoom outputs mA1 value mA2 value S1 perc. S2 perc. S3 perc. S4 perc. Zoom device Serial number (Note) Software Revision Device Revision DD Revision Logbook Sensor data Calibration Sensor Pred.
57 Online menu Level 1 menu Most appl. Error Error description / remedy Calibration CC Calibration SC1 CC Calibration SC2 Air Calibration Sample calibration SC1 Sample calibration SC2 TC Calibration SC1* TC Calibration SC2* Temp.
58 Online menu Level 1 menu Level 2 menu Commissioning Output setup mA1 setup mA2 setup (similar to mA1) S1 S2 S3 S4 setup setup (similar to S1) setup (similar to S1) setup (similar to S1) Level 3 menu Level 4 menu Type = control Func Process parameter PID SP PID Rng PID dir PID MR* PID I-time* PID D-time* Burn Expiry time Type = output Func Process parameter Lin 0%* Lin 100%* Burn Damping time Type = simulate Func Sim. Perc.
59 Online menu Level 1 menu Level 2 menu Level 3 menu Level 4 menu Loop test Basic setup Review Tag Distributor Model Device information Date Descriptor Message Poll addr Num resp preams Model Distributor Write protect Manufacturer Dev id Tag Descriptor Message Date Universal rev Fld dev rev Sofware rev Poll addr Num req preams (Note): HART protocol DD files can be downloaded by following URL. http://www.yokogawa.com/an/download/an-dl-fieldbus-001en.
60 Appendix 7, Control drawing for FM approval IM 12D08N05-01E
Customer Maintenance Parts List Model SC450G [Style: S2] Conductivity / Resistivity Converter 7, 10 3 9 2 11 5c 5a, 5b 8 6a, 6b 12 1a, 1b Item *1a *1b *2 *3 Part No.
2 Pipe/Wall Mounting Hardware (Option code: /U) Panel Mounting Hardware (Option code: /PM) 7 2 8 3 3 9 4 5 6 1 UNIVERSAL MOUNT SET (Option code : /UM) includes both “/U” and “/PM”. 3 10 Awning Hood (Option code: /H5) CMPL 12D08N05-02E Item 1 2 3 4 5 Part No.
Revision Record Manual Title : Model SC450G [Style: S2] Conductivity/Resistivity Converter Manual Number : IM 12D08N05-01E Edition 1st 2nd Date Jul. 2007 Sep. 2007 3rd Aug. 2008 4th Mar. 2012 Remark (s) Newly published Back-side of cover, note added; p1, FM approval description of Figure 1-1 changed; p7, some CAUTION of Figure 3-4 and the touchscreen added; p16, sec.
