YOKOGAWA PH8HF User Manual
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YOKOGAWA PH8HF User Manual

YOKOGAWA PH8HF User Manual

Flow-through type holder
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User's
Manual
Model PH8HF, PH8HFF
Flow-Through Type Holder
IM 12B07N01-01E
IM 12B07N01-01E
6th Edition

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Summary of Contents for YOKOGAWA PH8HF

  • Page 1 User’s Manual Model PH8HF, PH8HFF Flow-Through Type Holder IM 12B07N01-01E IM 12B07N01-01E 6th Edition...

  • Page 2: Introduction

    <INTRODUCTION> INTRODUCTION  This manual covers the PH8HF, PH8HFF Flow-Through Type Holder. Other related items are described in the following manuals: Model Title IM No. PH8ERP KCl Refillable type pH Sensor IM 12B7K1-02E PH8EFP KCl Filling type pH Sensor IM 12B7J1-01E...

  • Page 3: For The Safe Use Of This Equipment

    Warning and Disclaimer The product is provided on an “as is” basis. YOKOGAWA shall have neither liability nor respon- sibility 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.

  • Page 4: After-Sales Warranty

    During the warranty period, for repair under warranty consult the local sales representative or service office. Yokogawa will replace or repair any damaged parts. Before consulting for repair under warranty, provide us with the model name and serial number and a description of the problem.

  • Page 6: Table Of Contents

    For the safe use of this equipment .............ii  After-sales Warranty ...................iii  Specifications ................... 1-1 1.1 General Specifications ..................1-1 1.1.1 PH8HF Flow-through Type Holder ............ 1-1 1.1.2 PH8HFF (Explosionproof Type) ............1-2 1.2 Model and Suffix codes ..................1-3 1.2.1 Flow-Through Type Holder PH8HF ........... 1-3 1.2.2 Flow-Through Type Holder (Explosionproof Type) PH8HFF ....
  • Page 7 <CONTENTS> 3.2.3 Ultrasonic Cleaning Element ............. 3-3 3.2.4 Maintenance of PH8PU1 Washer Pump and Tank ......3-4 Customer Maintenance Parts List ........CMPL 12B05N01-01E Revision Information ....................i IM 12B07N01-01E...

  • Page 8: Specifications

    < 1. Specifications > Specifications The Model PH8HF¨ flow-through type holder is used: • To connect two pipes and provide a “flow-through” path between them. • To mount a pH sensor; the sensor measures the pH of liquid flowing through the holder.

  • Page 9: Ph8Hff (Explosionproof Type)

    Note 2: A large braid-reinforced tube of ø22 x ø15 is recommended for supply due to the flow rate. 1.1.2 PH8HFF (Explosionproof Type) The holder is used only when using Ultrasonic cleaning system in the explosionproof area. Use PH8HF when using no cleaning, jet cleaning or brush cleaning. Applicable sensors: General pH Sensor PH8ERP, PH8EFP General ORP Sensor OR8ERG, OR8EFG Mounting: 2-inch pipe mounting vertical or horizontal, with 1 set of mounting bracket.

  • Page 10: Model And Suffix Codes

    < 1. Specifications > 1.2 Model and Suffix codes 1.2.1 Flow-Through Type Holder PH8HF Model Suffix Code Description Option Code ..............Flow-through type holder PH8HF Material (*7) ....Polypropylene (Refer to note below for selection) ....Stainless steel ....Heat-resistant PVC ....Titanium Process Connection -JPT ....

  • Page 11: Flow-Through Type Holder (Explosionproof Type) Ph8Hff

    Considerable care must be taken particularly in the case of strongly corrosive process fluid such as hydrochloric acid, sulfuric acid, hydrogen sulfide, and sodium hypochlorite. If you have any questions about the wetted part construction of the product, be sure to contact Yokogawa. IM 12B07N01-01E...

  • Page 12: External Dimensions

    < 1. Specifications > 1.3 External Dimensions PH8HF - PP - ¨PT - T - NN - NN, PH8HF - S3 - ¨PT - T - NN - NN UNIT: mm Øa (pH sensor) A Screw O-Ring Outlet Ød ±1 Inlet O-Ring ±1...
  • Page 13 < 1. Specifications > PH8HF - PP - ¨1¨ - T - NN – NN, PH8HF - S3 - ¨1¨ - T - NN - NN UNIT: mm Øa (pH sensor) 4-ØD hole O-Ring Outlet ØB ØA Ød ±1 Inlet ±1...
  • Page 14 < 1. Specifications > PH8HF - PV - ¨1¨ - T - NN – NN UNIT: mm ø80 (Sensor) 4-øD hole O-Ring Outlet øB øA ø60 Approx. ±1 Inlet ±1 Weight Model and Code PH8HF-PV-J10-h-NN-NN Approx. 0.7 kg PH8HF-PV-A15-h-NN-NN 79.2 14.2...
  • Page 15 < 1. Specifications > PH8HF - TN - ¨1¨ - T - NN – NN UNIT: mm ø70 Washer (Sensor) 4-øD hole O-Ring ø34 Outlet øA øE øB ø48.6 Approx. ±1 Inlet ±1 Model and Code Weight PH8HF-TN-J10-h-NN-NN 68.5 Approx. 3kg PH8HF-TN-A15-h-NN-NN 79.2...
  • Page 16 < 1. Specifications > PH8HF - ¨¨- ¨PT - T - ¨¨ – ¨P, PH8HF - ¨¨- ¨1¨ - T - ¨¨ - ¨P UNIT: mm Øa (pH sensor) A Screw O-Ring Outlet Ød ±1 Inlet O-Ring Approx. 47 □ Rc 1/2 (Suffix Code : -JP) ±1...
  • Page 17 1-10 < 1. Specifications > PH8HF - ¨¨- ¨PT - T - ¨¨ – C¨, PH8HF - ¨¨- ¨1¨ - T - ¨¨ - C¨ UNIT: mm Øa (pH sensor) A Screw O-Ring Outlet Ød ±1 Inlet Cable length (I) (Code: C□)
  • Page 18 1-11 < 1. Specifications > PH8HFF - ¨¨ - ¨PT - T - ¨¨ - JS UNIT: mm Øa (pH sensor) A Screw G 3/4(Wiring hole) Outlet O-Ring Ød Ø80 ±1 Inlet □ Flameproof Packing Adaptor Ø21.7 (Code : /PG2) Approx.
  • Page 19 1-12 < 1. Specifications > PH8HFF - ¨¨ - ¨1¨ - T - ¨¨ - JS UNIT: mm Øa (pH sensor) 4-ØD hole G3/4 (Wiring hole) Outlet ØB ØA Ød O-Ring Ø80 ±1 Inlet □ Flameproof Packing Adaptor (Code : /PG2) Ø21.7 Approx.
  • Page 20 1-13 < 1. Specifications > Solenoid Valve UNIT: mm General Purpose Solenoid Valve Explosionproof Solenoid Valve PH8MVF*B PH8MV*D 2-Rc1/2 G1/2 G1/2 2-Rc1/2 Cautions on Installation of Solenoid Valve for Jet / Brush Cleaning 1. Do not allow a sample solution to flow backward into the solenoid valve or to be replaced with the driving fluid. For this take relevant measures;...
  • Page 21 Blank Page...

  • Page 22: Installation, Piping And Wiring

    < 2. Installation, Piping and Wiring > Installation, Piping and Wiring Holder Installation 2.1.1 Installation Site Install the flow-through type holder in a site where the holder can be easily maintained. 2.1.2 Mounting the Flow-through Type Holder When strong piping - e.g. process piping - is next to the holder, mount the holder on it as shown in Figure 2.1.

  • Page 23: Process Piping

    < 2. Installation, Piping and Wiring > Sensor Mounting Nut Flow-Through Type Holder Bracket 70 mm 2-M6 F2.3E.ai Figure 2.3 Bracket Mounting Process Piping Piping (through which the process fluid flows) connected to the holder: The process piping should be installed as per specifications, and the temperature, pressure and flow rate of process fluid conforms to the specifications of the sensor and holder to be used.
  • Page 24 < 2. Installation, Piping and Wiring > (2) When a polypropylene holder is used: Keep the temperature and pressure of the process fluid (pressure of the cleaning fluid for holders with jet or brush cleaning) within the range shown in Figure 2.5. Stainless Steel (°C) Polypropylene...

  • Page 25: Piping Procedure

    < 2. Installation, Piping and Wiring > (4) When a sensor with medium pressure KCl, solution tank is used: Provide stop valves in the up-line and down-line piping adjacent to the holder. Stop Valve Stop Valve F2.7E.ai Figure 2.7 Stop Valve Installation 2.2.2 Piping Procedure Piping Materials:...

  • Page 26: Installing The Sensor

    (3) Use a normally-open (opens when relay is energized) nominal 15 mm diameter solenoid valve for the cleaning line. The solenoid valve supplied by Yokogawa meets the following specifications.
  • Page 27 < 2. Installation, Piping and Wiring > [Model PH8MV Solenoid Valve] Pilot kick operated, 2-port valve. Open when energized. Fluid: Normal tap water, industrial water, or air. Operating Pressure: 0 to 1 MPa Forward (reverse) Pressure Resistance: 2 MPa Fluid Temperature: Water;...

  • Page 28: Piping Procedure

    < 2. Installation, Piping and Wiring > 2.4.2 Piping Procedure (1) Air piping examples Drive Signal To Wash Cycle Timer Solenoid Valve* Regulator Supply Air Nominal 15 mm Pressure 200 kPa (2 kg/cm Hard Pipe Minimum Nominal 16 mm Wire-Reinforced Vinyl Tube* Notes: *1 If corrosive gas is produced at the measuring site, consider using a corrosion-resistant solenoid valve.

  • Page 29: Installation Of Ph8Pu1 Washer Pump And Water Tank

    < 2. Installation, Piping and Wiring > 2.4.3 Installation of PH8PU1 Washer Pump and Water Tank The PH8PU1 Washer Pump and Tank are used to provide water jet and brush cleaning in drinking water applications. For details, refer to the separate IM 19C1E1-01E on PH8PU1 Washer Pump and Tank.

  • Page 30: Wiring For Ph8Pu1 Washer Pump And Tank

    < 2. Installation, Piping and Wiring > [Non-explosionproof solenoid valve] Use a 2-conductor vinyl-sheathed cable with an outer diameter of 10 to 12 mm for the wiring. [Explosionproof solenoid valve] When the PH8MVF explosionproof solenoid valve is used, use tapped (screw-in) explosionproof conduit for wiring. 2.5.3 Wiring for PH8PU1 Washer Pump and Tank Figure 2.15 shows the internal and external wiring for the PH8PU1 Washer Pump and Tank.
  • Page 31 Blank Page...

  • Page 32: Maintenance/Inspection

    < 3. Maintenance/Inspection > Maintenance/Inspection Cleaning the Holder When process fluid contains slurry which tends to settle in the holder regularly so that the slurry does not build up. Remove the plug or cleaning element on the holder bottom to clean the holder. Plug or Cleaning Element F3.1E.ai Figure 3.1...

  • Page 33: Checking The Cleaning Element

    < 3. Maintenance/Inspection > Checking the Cleaning Element This section applies to the flow-through type holder with cleaning element. Check the cleaning element to maintain the flow-through type holder in good operating condition. 3.2.1 Jet Cleaning Element If the cleaner does not clean the sensor electrode, check if the sensor nozzles are clogged. Use a 0.8 mm diameter wire to remove any material clogging the sensor nozzles.
  • Page 34 < 3. Maintenance/Inspection > 3.2.3 Ultrasonic Cleaning Element For several weeks after starting the operation, check the ultrasonic cleaning element for corrosion. If corroded, replace it with the type most suitable for the measurement solution, selecting from among the element materials: SUS316 stainless steel, titanium and Hastelloy C. If a corroded element is not replaced, the solution may enter the ultrasonic element and cause problems.

  • Page 35: Maintenance Of Ph8Pu1 Washer Pump And Tank

    < 3. Maintenance/Inspection > [Replace the explosionproof cleaning element] For replacing the ultrasonic cleaning element, consults with Yokogawa service personnel. 3.2.4 Maintenance of PH8PU1 Washer Pump and Tank For details, refer to the separate IM 19C1E1-01E. IM 12B07N01-01E...
  • Page 36 /PF for Jet or Brush Cleaning ─ O-Ring K9142QX Fluoro rubber (FKM) K9319RH for /PF option CMPL 12B05N01-01E All Rights Reserved. Copyright © 1982 Yokogawa Electric Corporation. Subject to change without notice. 1st Edition: Nov. 1982 (YK) 4th Edition: Jun. 2016 (YK)
  • Page 37 PH8HFF Explosionproof Type Item Part No. Description O-Ring ─ K9142QW Fluoro rubber (FKM) K9319RG for /PF option O-Ring ─ K9142QX Fluoro rubber (FKM) K9319RH for /PF option Stainless Steel Mounting Bracket (Option code: /MF1) Set part No: K9145LD for option code /MF1 CMPL 12B05N01-01E 4th Edition: Jun.
  • Page 38 Added FLXA402 (page i) Jul. 2016/5th Edition List of related items: Deletion HA405, HA406, DPA405, DPA406, HF405; Page 1-1 Applicable sensors of PH8HF Flow-through Type Holder: Deletion special pH/ORP sensor; CMPL 12B05N01-01E revised to 4th edition (all revision of P/N). Nov. 2015/4th Edition Revision by the version up of GS.;...
  • Page 39 Blank Page...

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