User’s Manual Model PH450G [Style: S2] pH and ORP Converter IM 12B07C05-01E 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.
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 PH450G......................................................2 3. INSTALLATION AND WIRING.............
iv 4-3-5. Sensor mV...............................................................................................20 4-3-6. Reference impedance..............................................................................20 4-3-7. Last calibrated .........................................................................................20 4-3-8. Calibration due.........................................................................................20 4-3-9. Projected calibration...............................
v 8. TROUBLESHOOTING................................................................................................45 8-1. General ................................................................................................................45 8-2. Calibration check..................................................................................................45 8-3. Predictive maintenance........................................................................................45 8-4.
vi
1 The Yokogawa EXAxt PH450G 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 PH450G A) Inputs specs : Dual high impedance input (≥ 1012Ω) (under referance conditions) B) Input ranges pH : -2 to 16 pH ORP : -1500 to 1500 mV rH : 0 to 100 rH Temperature - Pt1000 : -30 to 140ºC - Pt100 : -30 to 140ºC - 350Ω (DKK) : -30 to 140ºC - 5k1 : -30 to 140ºC - 6k8 : -30 to 140ºC - PTC10k : -30 to 140ºC - NTC 8k55 : -10 to 120ºC - 3kBalco : -30 to 140ºC C) Accuracy pH input : ≤ 0.01 pH ORP input : ≤ 1 mV Temperature : ≤ 0.3 ºC (≤ 0.
3 2 GENERAL SPECIFICATIONS F) Contact input : Remote wash cycle start.
4 CAUTION This instrument is a Class A product, and it is designed for use in the industrial environment. Please use this instrument in the industrial environment only. O) Environment and operational conditions Ambient temperature : -20 to +55 ºC (-5 - 130 ºF) Storage temperature : -30 to +70 ºC (-20 - 160 ºF) Humidity : 10 to 90% at 40 ºC (100 ºF) RH (non-condensing) Data protection : EEPROM for configuration data and logbook.
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: • P anel 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.
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: PH450G-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 Appedix 4, Control drawing for FM approval.
8 3-2-2. Cables, Terminals, glands and conduit adapter PH450G-A(D)-A The PH450 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 close up 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 output signals mA1 HART Power Contact output S1 S2 mA2 Contact output S3 S4 Contact input Figure 3-6. System configuration 3-3.
10 WARNING Fuse replacement should be performed only by a qualified service personnel. See Sec.7. MAINTENANCE, Fuse. Fuse ratings: Power supply Fuse type 12-24 VDC, 10W max 2A/250V, Slow 100-240 VAC, 15VA max 0.5A/250V, Slow 3-3-2. Access to terminal and cable entry Terminals 1 and 2 are used for the power supply. Guide the power cables through the gland closed to the power supply terminals. The terminals will accept wires of 2.5 mm2 (14 AWG). Always use cable finishings if possible. 3-3-3.
11 (M4 screw) 2 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 the sensor system 3-6-1. Impedance measurement jumper settings Impedance measurement is a powerful diagnostic tool. In order to perform impedance measurements it is important to have a good jumper setting. The table and figure below will guide you to make the right setting. Note! It is important to decide first which application and which settings are appropriate for the installation.
13 3-7. Sensor wiring Refer to figure 3-10, which includes drawings that outline sensor wiring. 3-7-1. Connection cable The coaxial cable has two connections. red blue To connect sensors with fixed cables, simply match the terminal numbers in the instrument with the identification numbers on the cable ends. The separate sensors and cables are not numbered, but instead use a color-coding system.
14 PH pH transmitter Green Red * * Red * Red Black Red Blue Blue * 11 12 13 14 15 16 11 Temperature Blue Yellow 12 Temperature 13 Reference 14 Solution ground 15 Glass (measure) 16 Shield 17 Shield Red * Blue Blue Black Red * Blue White * 12 Temperature 13 Reference 14 Solution ground 15 Glass (measure) 16 Shield 17 Cable markers Separate electrodes for pH measurement Green 11 Temperature FU20 four-in one sensor for pH measurement Note: Connect cables to similaly marked terminals: 11 to
15 ORP Green* RED 11 TEMPERATURE BLUE Yellow * RED Blue* 12 TEMPERATURE 13 REFERENCE 14 SOLUTION GROUND 15 METAL (MEASURE) 16 SHIELD WHITE 17 SHIELD 17 SHIELD * Cable Markers * Cable Markers Separate electrodes for ORP measurements Combined metal/reference electrode for ORP measurement 11 11 TEMPERATURE 11 TEMPERATURE 12 12 TEMPERATURE 12 TEMPERATURE 15 13 REFERENCE 14 SOLUTION GROUND (ORP) 13 REFERENCE 14 SOLUTION GROUND (ORP) 14 15 METAL 16 SHIELD 15 METAL 16 SHIELD 16 17 16
16 3-7-2. Sensor cable connection with special grommet (450G-□-A version) In order to seal multiple sensor cables into EXAxt 450, a special grommet is provided that is designed to accommodate one, two or three sensor cables (5 mm dia.) plus a liquid earth cable (2.5 mm dia.). In the pack with the grommet are blanking pieces to close any unused holes. When correctly assembled, the grommet maintains the IP66 and NEMA 4X rating of the EXAxt 450 housing.
17 16 15 14 14 17 13 12 11 15 16 14 14 WF10 11 12 13 17 BA10 the specifications of the system can be met. The total cable length should not exceed 60 metres (e.g. 5 m fixed cable and 55 m extension cable). In case of systems using dual high impedance sensors (e.g. Pfaudler 18), then the cable length is restricted to 20 metres (fixed cable only, no extension with WF10).
18 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. Termination procedure for WF10 cable. 1. Slide 3 cm of heat shrink tube (9 x 1.5) over the cable end to be terminated. 2. Strip 9 cm of the outer (black) insulating material, taking care not to cut or damage internal cores. 3. Remove loose copper screening, and cut off the cotton packing threads as short as possible.
19 4. OPERATION OF EXAxt PH450G 4-1. Main display functions Tag:EXAxt PH450 Go to trend screen Go to zoom screen 25.0 236.0 mV Go to status screen WASH HOLD 4-3. Zoom in on details This button gives access to the diagnostic information of the converter. The following messages will appear under normal (default) conditions: Go to maintenance screen S1 S2 S3 S4 - Home key back to mainscreen. - One level up. Figure 4-1. Main Display pH Minimum --> Live reading Maximum 4 9.
20 of the sensor (default 7.00 pH). The ZERO value indicates the condition of the sensor. If the value exceeds +/- 120 mV (or user defined limits) an error message is displayed after calibration and the calibration is rejected. The trend of ZERO drift during the lifetime of the sensor is used to predict the lifetime of the sensor. ZERO can also be displayed in pH units and then it represents the pH value where the sensor output is 0 mV at 25 ºC.
21 4-3-11. HART ID = a part of the HART device ID (descriptor) 4-3-12. Software revision = the revision level of the software in the instrument 4-3-14. Logbook The EXAxt contains several logbooks to store history information on events, changed settings and calibrations. The logbooks have been categorized to simplify the retrieval of this information. Calibration will give information of previous calibrations. This logbook is useful as one now can 1) Monitor the sensor performance over time.
22 4-8. Setup Concentration mode 4-7. Navigation of the menu structure Primary setup display Instrument in HOLD “RETURN KEY” exit to previous display Main display The concentration mode allows the user to generate an analog output signal that is linear to concentration units and to read the concentration on the LCD in the units %, mg/l or ppt. Example: PH450 is used as ORP analyser and the output is linear to mg/l Free Chlorine.
23 4 OPERATION OF EXAxt PH450G IM 12B07C05-01E
24 5. MENU STRUCTURE COMMISSIONING 5-1. Sensor setup Sensor type: The sensor connection to the terminals is determining the setting of this parameter. Three selections can be made here. pH: Only pH needs to be measured. The glass electrode is connected to terminal 15 and the reference is connected to terminal 13. ORP: Only Redox needs to be measured. The metal is connected to terminal 15 and the reference (or glass) is connected to terminal 13.
25 5 Menu Parameter Default Range values min. max. Manual Manual Temp. 25ºC, 77ºF -30ºC, -22ºF 139ºC, 284ºF Temp. comp. Reference Temp. 25ºC, 77ºF 0ºC, 32ºF 100ºC, 211ºF Temp. Coef Temp. Coef T.C. pH T.C. ORP 0.0 pH/ºC, 0.0 pH/ºF 0.0 mV/ºC, 0.0 mV/ºF -0.1 pH/ºC, -0.06 pH/ºF -10 mV/ºC, -6 mV/ºF 0.1 pH/ºC, 0.06 pH/ºF 10 mV/ºC, 6 mV/ºF Matrix Temp. Ranges – -30ºC, -22ºF 139ºC, 284ºF Matrix pH Ranges – -1.
26 5-5. Calibration settings Calibration settings for a pH converter involve slope (sensitivity), zero (aspot) and ITP (iso thermal point). The following figure shows the pH value to the mV output of the sensor. Characteristic for pH measurement is an offset also known as aspot [mV] or zero [pH] and a Slope [mV/pH]. For an ideal sensor the theoretical slope is 59.16 mV/pH at 25ºC. Slope can be entered in mV/pH or a percentage of the theoretical slope (100% corresponds to 59.16 mV/pH).
27 5 MENU STRUCTURE COMMISSIONING Menu Parameter Limits and timing Zero high (relative to I.T.P.) Limits and timing. Zero low (relative to I.T.P.) Limits and timing Slope high Limits and timing Slope low Limits and timing Stabilization time Limits and timing Calib. interval Buffers Buffer table 1, 2, 3 Zero/Slope/ITP Zero Zero/Slope/ITP Slope Zero/Slope/ITP ITP Input 1(or 2) Impedance High limit Input 1(or 2) Impedance Low limit Default Range values min. 120 mV 0 mV 2.03 pH 0 pH -120 mV -532.
28 5-7. 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 selected “sensor type” and “measurement setup”. Off : When an output is set off the output is not used and will give an output of 4 mA Control : A selection of P- PI- or PID control Manual : Static output required to maintain reset equilibrium state with setpoint Direction : Direct.
29 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 % P(ID)-control P(ID)-control P(ID)-control P(ID)-control Setpoint Setpoint Range Range 7 pH 25ºC/ºF 1.
30 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. pH 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% t (sec) toff > 0.1 sec Duty cycle Figure 5-2. Direct/Reverse action 50% 50 5-8.
31 5 MENU STRUCTURE COMMISSIONING S2, S3, S4 Similar structure to S1 Menu Parameter values Default min. Range max. PID-control S1 PID-control S1 P(ID)-control S1 PI(D)-control S1 P(I)D-control S1 Duty cycle Pulse freq. mA1 (simulate) Alarm S1 Alarm S2 Alarm Alarm Hold Hold 7pH 1.00 pH 0% 3600 sec. 0 sec. 10 sec. 70 p/min. 0.0 sec. 13 pH (high) 1 pH (low) 0.10 pH 0.2 sec. 12 mA 12 mA -inf 0.001 pH 0% 1 sec. 0 sec. 1 sec. 1 p/min. 0 sec. -inf -inf 0 pH 0 sec. 3.6 mA 3.
32 5-9. Fail A fail contact is energized when a fail situation occurs. Fail situations are configured in section 5-10. For SOFT Fails the contact and the display on LCD are pulsating. For HARD Fails the contact and the display on LCD are energized continuously. Only contact S4 is programmed as a fail-safe contact. This means that contact S4 will be de-energized when a fail situation occurs.
33 Enabled Disabled Disabled+Imp2 high Enabled+Imp2 high (see chapter 6) for wash setup 5 MENU STRUCTURE COMMISSIONING S2, S3, S4 Similar structure to S1 Menu Parameter Default Range values min. max. Generic wash settings Generic wash settings Generic wash settings Simulation 6 hour 0.5 min. 0.5 min. 50% 36 hour 10 min. 10 min. 100% Interval time Wash time recovery time Percentage 0.1 hour 0.1 min. 0.1 min.
34 5-11. 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.
35 5 MENU STRUCTURE COMMISSIONING IM 12B07C05-01E
36 5-13. 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.
37 5 MENU STRUCTURE COMMISSIONING Menu Parameter Default Range values Low High Hart 0 15 Network address 0 IM 12B07C05-01E
38 5-14. 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.
39 5 MENU STRUCTURE COMMISSIONING Menu Parameter Default Range values Low High Y-axis Y-axis Y-axis Y-axis Y-axis Y-axis Y-axis Y-axis 0 pH 14 pH -1500 mV 1500 mV -inf +inf 0ºC, 0ºF 100ºC, 100ºF +inf +inf +inf +inf +inf +inf +inf +inf pH low pH high ORP low ORP high rH low rH high Temp. low Temp.
40 6. CALIBRATION 6-1. Calibration check with buffer solutions. The following tips will help to produce a good calibration. 1. Before starting a calibration, make sure the electrode system is properly cleaned so that the electrodes are fully functional. They must then be rinsed with clean water to avoid contamination of the calibration solution(s). 2. Always use fresh buffer solutions to avoid the possibility of introducing errors from contaminated or old solutions.
41 When the right buffer tables are entered, automatic calibration is the easiest and most reliable calibration method to use. The calibration is performed in several steps, each clearly indicated by the user interface. Each measurement point needs to be stable before proceeding.
42 Termination of a wash cycle The user can decide to terminate the current wash cycle. This is done in the main screen (all other screens are deactivated) by pressing the wash flag (once or twice). The wash cycle has two time intervals (TW and TR) and depending on the moment of pressing the “wash” flag the current interval is ended (see fig. 6-1) Note! Recovery time is intended to let the sensor system recover to “Normal” process conditions.
43 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.
44 Where a refillable (flowing electrolyte) reference system is employed, make sure that the reservoir is kept topped up. The rate of electrolyte consumption will again be process dependent, so experience will show how often you must refill. Pressurized systems need to be regularly checked to ensure that the pressure is adequate. Periodic re-calibration of the sensor system is necessary to ensure best accuracy.
45 8. TROUBLESHOOTING 8-1. General The EXAxt is a microprocessor-based converter 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.
46 9. QUALITY INSPECTION Quality Inspection Standards 1. PH450G pH and ORP Converter Scope This inspection standard applies to the PH450G pH and ORP 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.
47 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.” Select the [Input1(pH)] in “mV input.” When the standard voltage source to the corresponding value of “Simulation input (mV)” in Table 1 is set, check the data display and the value must be within the range shown in Table 1.
48 3/3 Table 4 Data Display 4 12 20 Current Output (mA DC) 4 ±0.02 12 ±0.02 20 ±0.02 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.
49 9 QUALITY INSPECTION IM 12B07C05-01E
50 10. SPARE PARTS See Customer Maintenance Parts List.
51 APPENDICES Appendix 1, Buffer tables NIST (IEC 60746-2)/DIN 19266 °C 1,68 4,01 6,87 9,18 0 pH pH 4.003 pH 6.984 pH 9.464 5 1.668 3.999 6.951 9.395 10 1.670 3.998 6.923 9.332 15 1.672 3.999 6.900 9.276 20 1.675 4.002 6.881 9.225 25 1.679 4.008 6.865 9.180 30 1.683 4.015 6.853 9.139 35 1.688 4.024 6.844 9.102 38 1.691 4.030 6.840 9.081 40 1.694 4.035 6.838 9.068 45 1.700 4.047 6.834 9.038 50 1.707 4.060 6.833 9.
52 Appendix 2, HART HHT (275/375) menu structure Online menu Level 1 menu Level 2 menu Process values Primary value (pH)* Secondary value (Temp.) Tertiary value (ORP/Hr)* Zoom Zoom sensor Zero* Slope* Sensor mV* ORP Zero* ORP Slope* ORP Sensor mV* RH Zero* RH Slope* RH Sensor mV* impedance 1* impedance 2* Zoom outputs mA1 value mA2 value S1 perc. S2 perc. S3 perc. S4 perc.
53 Online menu Level 1 menu Most appl. Error Error description / remedy Calib / Wash pH 1pt Calibration* ORP 1pt Calibration* rH 1pt Calibration* pH Sample Calib.* ORP Sample Calib.* rH Sample Calib.* Temp.
54 Online menu Level 1 menu Commissioning Meintenance setup Output setup IM 12B07C05-01E Level 2 menu Level 3 menu Calib. settings Buffer set Sero/Slope/ITP Impedance settings Input 1 Impedance Imp. 1 low limit* Imp. 1 high limit* Input 2 impedance Imp. 2 low limit* Imp.
55 Online menu Commissioning Level 1 menu Level 2 menu Output setup HOLD setup Error config Configure error Off/Warn/Fail Logbook config Sensor logbook mA logbook Contact logbook Erase logbook Warn logbook full Level 3 menu Level 4 menu HOLD L/F mA1 fixed* mA2 fixed* Hold dur. cal/wash Calibration Sensor Predictive. Maint.
56 Appendix 3, 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 Tref T1 S1Tr S1T1 T2 T3 T4 S1T5 T5 S5Tr S5T1 S5T5 Sol2 Sol3 Sol4 Sol5 2.Tref (reference temperature) is defined in the Temperature Compensation menu. If Tref is between T1 and T5 then the value of Tref needs to be entered as T2 or T3 or T4.
57 Appendix 4, Control drawing for FM approval A APPENDICES IM 12B07C05-01E
58 IM 12B07C05-01E
Customer Maintenance Parts List Model PH450G [Style: S2] pH and ORP Converter 7, 10 3 9 2 11 5c 5a, 5b 8a 8b 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 12B07C05-02E Item 1 2 3 4 5 Part No.
Revision Record Manual Title : Model PH450G [Style: S2] pH and ORP Converter Manual Number : IM 12B07C05-01E 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; p21,sec.
