YOKOGAWA PH8ERP User Manual

YOKOGAWA PH8ERP User Manual

Kcl refillable type ph sensor

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User's
Manual
Model PH8ERP
KCl Refillable type pH Sensor
IM 12B7K1-02E
IM 12B7K1-02E
11th Edition

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Summary of Contents for YOKOGAWA PH8ERP

  • Page 1 User’s Manual Model PH8ERP KCl Refillable type pH Sensor IM 12B7K1-02E IM 12B7K1-02E 11th Edition...
  • Page 2: Introduction

    <INTRODUCTION> <INTRODUCTION> INTRODUCTION  This manual covers the PH8ERP KCl Refillable type pH Sensor. Other related items are described in the following manuals. Model Title IM No. PH8HG Drop-in Guide Pipe IM 12B7M2-01E PH8HF, PH8HFF Flow-Through Type Holder IM 12B07N01-01E...
  • Page 3: For The Safe Use Of This Equipment

    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 12B7K1-02E...
  • Page 4 <INTRODUCTION> <INTRODUCTION> Compliance with the simple apparatus requirements PH8ERP meet the simple apparatus requirements defined in the following standards. Note: TIIS certified types cannot be connected. Use the sensors under the conditions of use required by the standards. Applicable standards:...
  • Page 5: After-Sales Warranty

    If we replace the product with a new one, we won’t provide you with a repair report. l Yokogawa warrants the product for the period stated in the pre-purchase quotation Yokogawa shall conduct defined warranty service based on its standard. When the customer site is located outside of the service area, a fee for dispatching the maintenance engineer will be charged to the customer.
  • Page 6: Table Of Contents

    <CONTENTS> Model PH8ERP KCl Refillable type pH Sensor IM 12B7K1-02E 11th Edition CONTENTS INTRODUCTION .....................i  For the safe use of this equipment .............ii  After-sales Warranty ...................iv  Specification ..................... 1-1 Standard Specifications ................... 1-1 Model and Suffix codes ..................1-2 External Dimensions ..................
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  • Page 8: Specification

    < 1. Specification > Specification The Model PH8ERP KCl Refillable pH Sensor features maintainability which involves no KCl solution coming out of the liquid junction. This sensor can be mounted on either an PH8HF flow-through holder or an PH8HS submersion holder. The sensor can be submerged up to a maximum of 3 meters, depending on the specification.
  • Page 9: Model And Suffix Codes

    If you have any questions about the wetted part construction of the product, be sure to contact Yokogawa. Model and Suffix codes...
  • Page 10 Powder for buffer solution (pH 9) K9020XC 12 bags, each for preparation of 500 mL KCl powder (for PH8ERP) K9142UT 2 bags, 1 bottle of 3.3 mol/L KCl, 1 syringe Note: The pH value of the calibrating buffer solution may vary depending on storage conditions.
  • Page 11: External Dimensions

    Ring terminal (-F, -G) Sensor cable For PH202, FLXA202, FLXA21 (PH8ERP-��-��-N-E*A) Pin terminal (-E) Variopin connecter For PH200, PH400 (PH8ERP-NN-��-N-V*A) (PH8ERP-��-��-N-T*A) For PH100 (PH8ERP-��-��-N-B*A) Fork terminal (-T, -B) Ø27.5 Ø38 Figure 1.1 PH8ERP Refillable type pH Sensor IM 12B7K1-02E 11th Edition : Dec.14,2018-00...
  • Page 12: Installation

    2.1.1 Unpacking and Inspection The Model PH8ERP pH sensor is packed at the factory to prevent damage during transportation. Upon receipt of the sensor, unpack the shipping container and then visually inspect it for damage. Check the instrument nameplate on the sensor body to make sure that you received the correct sensor.
  • Page 13: Requirements For Mounting The Ph Sensor

    < 2. Installation > < 2. Installation > Requirements for mounting the pH sensor 2.2.1 In case of installing the PH8HG Guide-pipe Holder To install the sensor in the guide pipe, proceed as follows: (1) Connect the sensor cable to the associated instrument correctly by referring to Section 2.3 provided later.
  • Page 14: Installing Sensor In Ph8Hs Submersion Holder

    < 2. Installation > 2.2.2 Installing Sensor in PH8HS Submersion Holder To install the sensor in the submersion holder, proceed as follows: (1) Pass the sensor cable through the sensor holder. If the submersion holder remains installed, remove the sensor holder in any case. For a pipe-mounting submersion holder without a cleaner, loosen the sensor holder nut to remove the holder.
  • Page 15 < 2. Installation > < 2. Installation > Clamp (Screw) Cleaner Holder Sensor Holder F2.6.ai Figure 2.6 Removal of Sensor Holder (with Cleaner) To install the sensor cable in the sensor holder, first remove the protector screwed onto the sensor holder end and then remove the protective foam piece (for shipping; thus, it is not necessary after the sensor is installed in the holder).
  • Page 16 < 2. Installation > Waterproof Cap Cover Waterproof Cap Pull out the sensor cable Sensor Holder Pipe Sensor Cable Insert the sensor and cable Sponge (Remove) O-ring Flange Sensor Body Protector Figure 2.7 Installing the Sensor Cable (2) Connect the sensor cable to the associated instrument correctly by referring to Section 2.3. (3) Screw the protector to fix the sensor to the holder.
  • Page 17: Installing Sensor In Ph8Hf Flow-Through Holder

    < 2. Installation > < 2. Installation > pH Sensor O-ring Protector F2.8.ai Figure 2.8 Installing Sensor in Submersion Holder (4) Close the waterproof cap, and attach the holder to the arm pipe, flange or cleaner holder completely. 2.2.3 Installing Sensor in PH8HF Flow-through Holder To install the sensor in a flow-through holder, proceed as follows: (1) Connect the sensor cable to the associated instrument.
  • Page 18: Ph Sensor Cable Wiring Procedure

    < 2. Installation > CAUTION DO NOT hold the lower part of the sensor when screwing it into a Variopin connecter. Otherwise the excessive force may damage the sensor. pH Sensor Fixing Nut O-ring Flow-through Holder 2-inch Mounting Pipe F2.10.ai Figure 2.10 Installing Sensor in Flow-through Holder How to install the HH350G, PB350G, and PB360G holders, refer to relevant IMs.
  • Page 19 < 2. Installation > < 2. Installation > Hole punching tool for wiring (supplied as accessory) F2.11.ai Figure 2.11 How to punch out the wiring hole (2) Loosen two screws which are at front of terminal box and detach the cover. (3) After detaching the nut from the cable gland of sensor cable, pull the cable into the terminal box from sensor cable inlet hole.
  • Page 20 < 2. Installation > Attach the nut in the direction shown here (so that it engages the detent groove). Gasket Main unit F2.13.ai Figure 2.13 Cable Gland (5) After completing the cable connections, replace the box cover securely, thus preventing moisture from getting into the case.
  • Page 21: Connecting Sensor Cable To Two-Wire Ph Transmitter

    2-10 2-10 < 2. Installation > < 2. Installation > 2.3.2 Connecting Sensor Cable to Two-wire pH Transmitter To connect the sensor cable to the two-wire pH transmitter, proceed as follows: (1) Loosen the four screws that tighten the transmitter cover. Then remove the transmitter cover.
  • Page 22: Connecting Sensor Cable To Four-Wire Ph Converter

    2-11 < 2. Installation > 2.3.3 Connecting Sensor Cable to Four-wire pH Converter To connect the sensor cable to a Four-wire pH converter, proceed as follows: (1) Loosen the four screws that tighten the converter cover. Then open the converter cover. (2) Connect the sensor cables to the relevant terminals of the converter: First, remove the nut from the cable gland.
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  • Page 24: Maintenance On Operation

    < 3. Maintenance on operation > Maintenance on operation Operation and Periodic Maintenance 3.1.1 Calibrating pH Sensor Using Buffer Solutions Calibrate pH sensors with buffer solutions before starting normal operation because the emf of glass electrodes differs somewhat from each other. The emf of a glass electrode gradually changes due to electrode staining or deterioration.
  • Page 25 < 3. Maintenance on operation > (1) Prepare a KCl solution available as an optional kit (part number: K9142UT), lf it is not yet available, use instead KCl powder (about 12 g) and pure water (about 50 mL) and a clean pipet (or a 20 mL syringe) to replenish the KCl solution.
  • Page 26: Replacing Consumable Parts

    < 3. Maintenance on operation > Replacing Consumable Parts 3.2.1 Replacing Glass Electrode If buffer solution calibration becomes impossible due to deterioration of the glass electrode, replace it with a new one. After the glass electrode is replaced, always carry out a buffer solution calibration.
  • Page 27: Replacing O-Rings For Glass Electrode

    O-ring inside the glass electrode. For individual replacement of the O-ring, use the one recommended by Yokogawa. When installing the O-ring, wind a slip of paper or tape around the thread part on the glass electrode so as not to scratch the O-ring.
  • Page 28: Customer Maintenance Parts List

    6 mm ID. ᵡ 9 mm OD. K9142QS for general use, 9 mm ID. ᵡ 12 mm OD. K9319RB for PH8ERP/PF, 6 mm ID. ᵡ 9 mm OD. K9319RC for PH8ERP/PF, 9 mm ID. ᵡ 12 mm OD. Below...
  • Page 30: Revision Information

    Revision Information Title : Model PH8ERP KCl Refillable type pH Sensor Manual No. : IM 12B7K1-02E Dec. 2018/10th Edition Added -V (Variopin connecter) P i, P1-1, 1-2, 1-4, 2-1, 2-4, 2-6, 2-7, 2-11 Nov. 2018/10th Edition Added FLXA402 P i, P1-2.
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