YOKOGAWA WE430 User Manual
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YOKOGAWA WE430 User Manual

YOKOGAWA WE430 User Manual

Hydrazine analyzer
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User's
Manual
Model WE430
Hydrazine Analyzer
IM 12Y18A03-01EN
IM 12Y18A03-01EN
1st Edition

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  • Page 1 User’s Manual Model WE430 Hydrazine Analyzer IM 12Y18A03-01EN IM 12Y18A03-01EN 1st Edition...

  • Page 2: Introduction

    Introduction Thank you for purchasing the WE430 Hydrazine Analyzer. This Instructor’s Manual contains all essential information for the user to make full use of WE430. Please read the following respective documents before installing and using the WE430. The related documents are listed as follows.
  • Page 3 • No part of the user’s manuals may be transferred or reproduced without prior written consent from YOKOGAWA. • YOKOGAWA reserves the right to make improvements in the user’s manuals and product at any time, without notice or obligation. • If you have any questions, or you find mistakes or omissions in the user’s manuals, please contact our sales representative or your local distributor.

  • Page 4: Safety Precautions

    The product is provided on an “as is” basis. YOKOGAWA shall have neither liability nor responsibility to any person or entity with respect to any direct or indirect loss or damage arising from using the product or any defect of the product that YOKOGAWA can not predict in advance. IM 12Y18A03-01EN...

  • Page 5: Ce Marking Products

    CE marking products Authorized Representative in EEA The Authorized Representative for this product in EEA is Yokogawa Europe B.V. (Euroweg 2, 3825 HD Amersfoort, The Netherlands). Identification Tag This manual and the identification tag attached on packing box are essential parts of the product.

  • Page 6: Table Of Contents

    Toc-1 Model WE430 Hydrazine Analyzer IM 12Y18A03-01EN 1st Edition CONTENTS Introduction ....................i Safety Precautions ..................iii CE marking products ..................iv General Information ................. 1-1 Principles of Operation ..................1-2 Principles of Calibration ................... 1-4 1.2.1 Dynamic Two Point Calibration (DYN) ..........1-4 1.2.2...
  • Page 7 Toc-2 Offline Calibration Procedure ................4-7 Analyzer Maintenance ................5-1 Maintenance Schedule ..................5-1 Weekly Maintenance ..................5-1 Bi-Weekly Maintenance ..................5-1 Monthly Maintenance ..................5-2 5.4.1 Calibration ..................5-2 5.4.2 Replacement of Sample Inlet Filter ............ 5-2 5.4.3 Polish Iodide Electrode ..............5-2 5.4.4 Air Pump Check .................

  • Page 8: General Information

    The WE430 Hydrazine analyzer meets all of the criteria for accurate and dependable oxygen scavenger monitoring and more. The WE430 analyzer incorporates innovative technologies that include: •...

  • Page 9: Principles Of Operation

    • Analyzer determines the best range. Application Modes The versatility of the WE430 Hydrazine analyzer allows the operator to set the analyzer to read hydrazine, depending on the oxygen scavenger to be measured. Refer to Section 3.1, Use of the Setup Mode for instructions on how to set the analyzer to read hydrazine.
  • Page 10 <1. General Information> Figure 1.1 WE430 Schematic The oxygen scavenger present in the sample reacts with the iodine to form iodide ion: + X • I → 2X • I + OS Where: = oxygen scavenger reduced = oxygen scavenger oxidized The iodide sensing electrode responds logarithmically to changes in the resulting iodide ion concentration.

  • Page 11: Principles Of Calibration

    By pressing the appropriate keys on the analyzer when prompted, the analyzer’s microprocessor completes the calibration. After allowing approximately 30 minutes for the calibration solution to be flushed from the system, the WE430 analyzer can begin sample measurement again.

  • Page 12: Glossary

    The term “offline calibration” refers only to the fact that a sample from WE430 analyzer bypass is taken “offline” for laboratory analysis; in fact, no downtime is experienced during the procedure and the analyzer remains online throughout.
  • Page 13 <1. General Information> Pressure Regulator Adjusts flow of the incoming sample stream. Flow Valve Used to turn off flow to the flow cell. Flow Meter Measures the sample flow rate. Restrictor Tube Assembly Used in conjunction with the pressure regulator to maintain a steady sample flow rate. Fluid Connector Block Connects the reagent bottle to the sample stream and flow cell assembly.

  • Page 14: Analyzer Preparation

    Unpacking the Analyzer YOKOGAWA analyzers are assembled, tested and packaged with great care. Open the outer box. Remove the top four foam corner support pieces. Open the inner box. This box should contain the analyzer and accessories. (Refer to IM...
  • Page 15 <2. Analyzer Preparation> Unit: mm (inch) Mounting holes 4-ø12.7 (0.5) 628.7 (28) (24.75) 472 (18.6) 218 (8.6) 44 (1.75) 177.8 (7.0) (0.68) Figure 2.1 Mounting Dimensions NOTE • Select a site for the analyzer that allows it to be permanently bolted with ample height for atmospheric drain operation.

  • Page 16: Electrical Wiring

    <2. Analyzer Preparation> Sample Requirements Additional information is listed in the Appendix, Specifications section. Sample inlet connection 1/4” NPTF. If particulate matter is present in the sample, pre-filtration is necessary. The 60 micron stainless steel filter located after inlet valve will remove moderate amounts of particulates.

  • Page 17: Wiring The Analyzer

    <2. Analyzer Preparation> The safety warning icons are used in two locations on the analyzer. • Faceplate – Refer to Figure 2.2. Figure 2.2 Faceplate • Power supply – Refer to Figure 2.3. Figure 2.3 Power Supply NOTE Replace the fuse only with a fuse of same rating. Wiring the Analyzer WARNING Read and observe the following requirements.
  • Page 18 <2. Analyzer Preparation> Power Cable Hole Locations Hinge Pin Cable Glands 4 Captive Screws Electrode Cables Figure 2.4 Electronics Enclosure with Cable Glands Open the faceplate – loosen the four screws using a Phillips head screwdriver. The electronics faceplate will open via the hinge pin connection. Remove one or two of the two unused cable glands as required for wiring power cable or auxiliary connections.

  • Page 19: Terminal Assignments

    <2. Analyzer Preparation> 2.3.1 Terminal Assignments Terminal Layout Terminal Layout Terminal Layout Terminal Layout 1 mA1 output 9 Relay 1 26 Sensing electrode 28 Do not connect 2 GND common ground 10 Relay 1 27 Do not connect 29 Do not connect 3 mA2 output 11 Relay 2 30 Preamp power...

  • Page 20: Installation Of New Electrode Cables

    <2. Analyzer Preparation> Support the bottom of the reagent bottle and release the holding clamp with one hand. Turn the thumbscrew counterclockwise to release the reagent bottle. Unscrew the white bottle cap and gray tubing connector assembly. The bottle that is supplied with the analyzer can be used as a spare.

  • Page 21: Installation Of Atc Probe

    <2. Analyzer Preparation> NOTE Do not twist the cable while tightening the connection. Twisting may cause damage requiring premature replacement of the cable. Wait at least one hour before calibrating the analyzer. Sensor Reference Figure 2.8 Flow Cell Cap Installation of ATC Probe The automatic temperature compensation (ATC) probe is already connected to the correct terminal for temperature upon delivery.

  • Page 22: Installation Of A New Reference Electrode

    <2. Analyzer Preparation> Installation of a New Reference Electrode WARNING Turn off the air pump prior to removing the reference electrode filling solution bottle. If the air pump is left on, it will spatter filling solution as the bottle is removed. Unpack the reference electrode (Part number: K9705CH) from the shipping box.
  • Page 23 2-10 <2. Analyzer Preparation> CAUTION Failure to pressurize the filling solution bottle will lead to noisy and drifting output signals. Plug the electrode cable marked “Reference” into the top of the electrode, and tighten the screw cap. Be sure to push back the black cap to verify a secure connection between the male and female pin connection prior to tightening.

  • Page 24: Analyzer Operation

    <3. Analyzer Operation> Analyzer Operation Description of Basic Controls Figure 3.1 Faceplate Parameter Location on Display Options Default A Mode Indicator Top right corner of display HOLD, CAL, SETUP, MEASURE MEASURE, DIAGNOSTIC B Marquee Display Top left corner of display Analyzer provides prompts for operator using the scrolling message...
  • Page 25 <3. Analyzer Operation> Description of Keypad Icons Figure 3.2 Keypad Icons Parameter/Mode Action Operational Selections Enters calibration mode Calibration mode with operator Depends on type of board installed prompts Scrolls up digit numbers Use to edit numeric values 0 through 9 selectable by digit, Scrolls up through a list of Use to select available options first digit sometimes selectable 0...

  • Page 26: Use Of The Setup Mode

    <3. Analyzer Operation> Use of the Setup Mode Before the first sample measurements can be taken, the setup mode should be programmed and a successful calibration must be performed by the operator and stored in the memory of the analyzer. Navigating Tips for the Setup Mode •...

  • Page 27: Setup Mode Overview

    <3. Analyzer Operation> Setup Mode Overview The setup mode features programmable menu options. The order of the menu options is dependent on the direction the operator scrolls by pressing . The menu options are listed below by pressing General Setup Mode Menu Options The following menu options are displayed in the main setup mode of one and two channel analyzers.
  • Page 28 <3. Analyzer Operation> DISP Set the automatic lighting options for the backlit display: • AUtO – Brightness will change in response to ambient light source • On – Backlit display is always on • OFF – Backlit display is always off •...
  • Page 29 <3. Analyzer Operation> ALRM Set up to three alarms – high, low and an error signaling contact: • Relays 1 and 2 (rLY1, rLY2) are normally open dry contacts used to set high and low alarms for measurement values • rLY1 and rLY2 options – OFF, HI, LO •...
  • Page 30 <3. Analyzer Operation> Set the mA2 analog current output: • Scroll between 4-20 mA or 0-20 mA current signals • The outputs share a common return, but are isolated from the main circuitry of the analyzer • Default output current: 4-20 mA Select Sensor or Temperature for this output (SEnS and tEnP) If Sense - •...
  • Page 31 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes SETUP (One Channel Analyzer) PASS SEL SCrn The displayed menu Press to enter setup mode DATE options depend on • SETUP appears as the mode indicator in TIME the measurement the mode window capability of the •...
  • Page 32 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes PASS PASS (flashing) SCrn Press to set new passwords 0 0 0 0 SET-UP NEW PASS SYSTEM # # # # PASSWORD (first digit flashing) SET-UP NEW PASS Do not scroll first digit Press to set the first digit SYSTEM...
  • Page 33 3-10 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes TIME TIME (flashing) SCrn Press to set the time 00:01 ENTER 24HR TIME ##:## (hour : minute) HOUR/MINUTE (first digit flashing) ENTER 24HR TIME ##:## (hour : minute) Set in 24hour time Press to set the first digit...
  • Page 34 3-11 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes RSET RSET (flashing) SCrn Press to reset theanalyzer PUSH TEST rSEt VIEWENTER TO RESET To Reset the Analyzer: PUSH TEST rSEt This command resets Press VIEWENTER TO all previously set Press RESET parameters to factory...
  • Page 35 3-12 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes CH1 will not be (flashing) SCrn shown in scrolling marquee if only one board is installed Press to set the channel 1 specific menus in the setup mode MEAS SEL CH1 Press...
  • Page 36 3-13 <3. Analyzer Operation> NOTE Changing the application mode will reset the analyzer, restore the default parameters and clear any saved calibration information. Default Operator Action Scrolling Marquee Main Display Notes MEAS MEAS SEL CH1 or SEL CH2 (flashing) SCrn on main display of two channel analyzer Press...
  • Page 37 3-14 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes HOLD HOLD SEL CH1 or SEL CH2 (flashing) SCrn on main display of two channel analyzer Press to set the hold time 00:30 ENTER HOLD TIME ##:## HOUR/MINUTE (first digit flashing) ENTER HOLD TIME ##:##...
  • Page 38 3-15 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes TADJ TADJ SEL CH1 or SEL CH2 (flashing) SCrn on main display of two channel analyzer Press to set the temperature adjustment value 0.0 C TEMPERATURE ADJUSTMENT #.# c (first digit flashing) TEMPERATURE The maximum...
  • Page 39 3-16 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes ALRM ALRM SEL CH1 or SEL CH2 (flashing) SCrn on main display of two channel analyzer Press to set the alarms SELECT ALARM 1 rLY1 OFF HIGH LOW OR OFF (flashing) SELECT ALARM 1 rLY1...
  • Page 40 3-17 <3. Analyzer Operation> Configuring the analog output mA1 Default Operator Action Scrolling Marquee Main Display Notes SEL CH1 or SEL (flashing) SCrn CH2 on main display of two channel analyzer Press to set the analog output 4-20 SELECT 0-20 OR 4-20 or 0-20 Press to scroll between...
  • Page 41 3-18 <3. Analyzer Operation> Configuring the analog output mA2 Default Operator Action Scrolling Marquee Main Display Notes mA2 (flashing) SEL CH1 or SEL CH2 SCrn on main display of two channel analyzer Press to set the analog output 2 4-20 SELECT 0-20 OR 4-20 or 0-20 Press...
  • Page 42 3-19 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes mA TEMP Press to set the first digit OUTPUT LOW ##.# C Press to move to the next digit VALUE (change flashing digit) Press to set the values of the remaining digits and press to set a positive or negative temperature value...
  • Page 43 3-20 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes mADJ mADJ SEL CH1 or SEL CH2 (flashing) SCrn on main display of two channel analyzer Press to set the sensor and temperature mA offset values SELECT mA1 OR OUT1 or OUT2 mA2 OUTPUT (flashing)
  • Page 44 3-21 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes TEST TEST SEL CH1 or SEL CH2 (flashing) SCrn on main display of two channel analyzer Press to test the mA outputs (4- 20) and relays (rLY) To Test OUT2 4-20 SELECT mA OR tESt 4 - 20...
  • Page 45 3-22 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes TEST SEL CH1 or SEL CH2 (flashing) SCrn on main display of two channel analyzer Press to testthe mA outputs (4- 20) and relays (rLY) To Test rLY 4-20 SELECT mA OR tESt rLY...
  • Page 46 3-23 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes SEL CH1 or SEL (flashing) SCrn CH2 on main display of two channel analyzer Press to set the required calibration frequency 0720 ENTER To disable the CALIBRATION #### calibration alarm, set FREQUENCY IN (first digit flashing)
  • Page 47 3-24 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes SEL CH1 or SEL (flashing) SCrn CH2 on main display of two channel analyzer Press to set custom DYN settings for the electrode calibration 40mL/ SET SAMP FLOW minute RATE IN mL/M ###.#...

  • Page 48: Shutdown And Start-Up Procedure

    3-25 <3. Analyzer Operation> Default Operator Action Scrolling Marquee Main Display Notes Press to accept the setting and return to the main setup mode CH1 or CH2 Display for two (flashing) SCrn channel analyzer Action required for Press to return to the channel two channel analyzer specific menu options in the setup mode...
  • Page 49 3-26 <3. Analyzer Operation> Locate the protective cap from reference electrode kit and place it on the base of the reference electrode to prevent it from drying out. Start-Up Replace the diffusion tubing if the sample flow was off for more than a few days. Tubing becomes brittle with long-term exposure to the reagent.

  • Page 50: Calibration

    To perform a dynamic two point calibration, the WE430 analyzer is first connected to a reductant- free sample stream. An appropriate diluted standard is prepared and then a syringe is filled with the diluted standard and mounted on the calibrator.

  • Page 51: Dynamic Calibrator Operation

    Fluidics Components Dynamic Calibrator Operation The dynamic calibrator is used to deliver a standard solution to the WE430 analyzer during calibration. Place the dynamic calibrator on a support near the analyzer. The calibrator location should be close enough to allow easy connection of the syringe tubing to the injection port on analyzer.

  • Page 52: Dynamic Calibrator And Syringe Setup

    <4. Calibration> Dynamic Calibrator and Syringe Setup Connect the calibration tubing to the syringe using the luer adapter and the 1/4’’ female connector. Only hand tighten the components, do not overtighten them. Loosen the blue knob on the dynamic calibrator by turning it approximately 1/4 of a turn clockwise and pressing up on the bottom, inside part of the blue knob.
  • Page 53 Scrolling Marquee Main Display Notes Polish the iodide sensing electrode. POLISH IODIDE Actual readings Minutes will be Connect the WE430 analyzer to an ELECTRODE flashing counted down on the oxygen scavenger-free sample. CONNECT TO OX-- marquee. Run the analyzer at 40 mL/minute for SCAV FREE SAMPLE 30 minutes.

  • Page 54: Calibration Error Codes

    <4. Calibration> Step Operator Action Scrolling Marquee Main Display Notes NEW CALIBRATION Calculated Slope Press to accept the new slope is pressed, SLOPE AND E and E and E values refer to the Calibration PRESS ENTER TO Abort Steps section. ACCEPT OR PRESS Press to abort the calibration.

  • Page 55: Calibration At Custom Concentrations Using Dyn

    Calibration At Custom Concentrations Using DYN The WE430 Hydrazine analyzer software has default values to accommodate standards added using the dynamic calibrator. The operator has the option to use alternate standards by changing, in the setup mode, the default values.

  • Page 56: Dynamic Calibrator Check

    The offline calibration feature is simply a one point calibration without slope change. The term “offline calibration” refers only to the fact that a sample from WE430 bypass is taken “offline” for laboratory analysis; in fact, no downtime is experienced and the analyzer remains online throughout the procedure.
  • Page 57 <4. Calibration> Step Operator Action Scrolling Marquee Main Display Notes CH1 or CH2 CAL CHnL Action required for Press to select the (flashing) two channel analyzer channel that will be calibrated and press to begin the calibration. DKA or OFFL CAL tYPE (flashing) OFFL...

  • Page 58: Analyzer Maintenance

    <5. Analyzer Maintenance> Analyzer Maintenance Maintenance Schedule The WE430 Hydrazine analyzer is designed for simple maintenance. Follow the instructions in this section to ensure proper operation of your analyzer. Recommendations To ensure proper maintenance and good analyzer performance, a service logbook should be kept.

  • Page 59: Monthly Maintenance

    <5. Analyzer Maintenance> Monthly Maintenance Calibration frequency is operator dependent for the most accurate and precise measurements. 5.4.1 Calibration • Replacement of the reagent requires calibration. Refer to Section 4.4, Performing a DYN Calibration. • Calibration intervals can be programmed using the setup mode. This will prompt the operator to recalibrate after a specific amount of time has passed.
  • Page 60 <5. Analyzer Maintenance> Support the bottom of the reagent bottle and release the holding clamp with one hand. Turn the thumbscrew counterclockwise to release the reagent bottle. Unscrew the white bottle cap and gray tubing connector assembly. Since the reagent contains concentrated acid, which is very corrosive to skin and eyes, take the reagent to a well ventilated area such as a laboratory fume hood.

  • Page 61: Yearly Preventive Maintenance

    <5. Analyzer Maintenance> Yearly Preventive Maintenance 5.5.1 Electrodes Replace the reference electrode (Part number: K9705CH). Refer to Section 2.8, Installation of a New Reference Electrode for step-by-step instructions. Replace the iodide sensing electrode (Part number: K9705CG). Refer to Section 2.6, Installation of a New Iodide Electrode for step-by-step instructions.

  • Page 62: Troubleshooting

    <6. Troubleshooting> Troubleshooting Diagnostics Mode • From the measure mode, press to enter the diagnostics mode. The key allows access to menus used for system diagnostics. • Each menu is sequential. Press to scroll through the diagnostics menu selections. • can be pressed at any time to return to the measure mode.

  • Page 63: Error List

    <6. Troubleshooting> Default Operator Action Scrolling Marquee Main Display Notes CALIBRATION # # . # c Press to display the calibration Press TEMP (Temperature) temperature and electrode scroll through the last response 12 calibrations Press to proceed to the next menu 6.1.2 Error List...

  • Page 64: Status Log

    <6. Troubleshooting> 6.1.4 Status Log • Displays a list of system events. • Press to scroll through the log entries. • Press to toggle between the log code and the data and time. 6.1.5 Software Revision • Displays the software revision numbers of the two processors. Default Operator Action Scrolling Marquee...

  • Page 65: Keypad Test

    <6. Troubleshooting> All the display segments will turn off except for the marquee display, which should show PRESS ENTER TO CONTINUE. Verify that all the display segments are off and press The system will show a counting number pattern on both lines of the main display. Verify that the display segments are functional and press to proceed to the keypad test.

  • Page 66: Slope Problems

    <6. Troubleshooting> Slope Problems 6.2.1 Low Slope Slope less than -40 mV/decade • Check the electrode function, clean the electrode, recalibrate the analyzer, and if the analyzer continues to read low, replace the electrode. • An oxygen scavenger-free sample must be used for calibration. •...

  • Page 67: Troubleshooting Matrix

    <6. Troubleshooting> 6.2.3 Troubleshooting Matrix Malfunction Possible Cause Remedy Noisy Blocked junction on reference electrode Make sure electrolyte is flowing properly and the bottle is pressurized by the air pump. Iodide or reference electrode failure Check the cable connections and location of wiring to terminal strip.

  • Page 68: Error/Event Codes

    <6. Troubleshooting> Malfunction Possible Cause Remedy Over-Range Electrode connections loose or bad Verify the electrode connections to the electrode Readings cables. Electrode wiring Electrodes not properly wired to terminal strip. Refer to Chapter 2. Blocked junction on reference electrode Make sure electrolyte is flowing properly and the bottle is pressurized by the air pump..
  • Page 69 <6. Troubleshooting> Displayed Description Cause Troubleshooting Event Code E037 POWER RETURN System started processing after Verify custom settings brown out or power failure E040 BLANK INCORRECT Blank greater than 1ppb Verify scrolled blank value is correct. E041 CALIBRATION The electrode has not reach stability The system code may be due to out TIMEOUT within the specified time...

  • Page 70: Resetting The Analyzer

    Replace electrode, if needed. Resetting the Analyzer The WE430 Hydrazine analyzer allows the user to reset the analyzer through the setup mode or by a hard reset. Resetting the analyzer will restore all settings in the setup mode to factory default values.

  • Page 71: Hard Reset

    6-10 <6. Troubleshooting> Operator Action Scrolling Marquee Main Display Notes PRESS TEST rSEt This command resets Press VIEWENTER TO RESET all previously set Press parameters to factory default values. Use this Press command only to set When the reset is complete, the system will the analyzer to original return to the measure mode.

  • Page 72: Revision Record

    Revision Record Manual Title : Model WE430 Hydrazine Analyzer Manual No. : IM 12Y18A03-01EN Oct. 2019/1st Edition Newly published Yokogawa Electric Corporation 2-9-32 Nakacho, Musashino-shi, Tokyo 180-8750, JAPAN http://www.yokogawa.com/ IM 12Y18A03-01EN 1st Edition : Oct. 04, 2019-00...
  • Page 73 Blank Page...

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