If you have any questions, contact our sales representative or your local distributor. Trademark Acknowledgments • FLEXA, FLXA are the registered trade marks or trade names of Yokogawa’s products. • All other company and product names mentioned in this user’s manual are trademarks or registered trademarks of their respective companies.
• 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.
• If we replace the product with a new one, we won’t provide you with a repair report. • 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.
Installation from lower position or a horizontal position is not possible. Install to the vertical position of more than 15 degrees against the horizontal portion. Do not use PH4B at areas where a gas atmosphere and a dust atmosphere are or could be present, since IECEx/ATEX approval and TIIS approval are not certificated.
K9691PP 10 m K9691PQ Terminal Type: E Silicon rubber K9691KC For PH4B O-Ring Perfluoroelastomer K9319RJ For PH4B, PH4P, PH4PT, PH4F, PH4FT, (FFKM) PH4C, PH4CT (Option code: /PF) Buffer solution for calibration (pH4) K9084LL Six 250 mL polyethylene bottles K9084LM Six 250 mL polyethylene bottles Buffer solution for calibration (pH7) K9084LN Six 250 mL polyethylene bottles...
Dimensions Unit: mm (L=120, 200, 250) Approx. ø12 O-ring PG13.5 K8 cable for PH4B Unit: mm Approx. ø6.5 Approx. ø5 Approx. 100 Approx. 90 Cable length (approx. 3m, 5m, 10m) Terminal Type: D Terminal Type: E This sensor is only to be used for the intended purpose and under safe conditions. Improper use or misuse can be dangerous.
Electrical wiring The sensors are equipped with a K8 connector head. Before connecting the sensor to the cable, check that the connections are clean and dry. Do not touch the electrical contacts! Connectors especially should not be disconnected in moisture condensing environments. Unstable signals, low slope or long response time could indicate a moist or contaminated connector.
Revision Record Manual Title : PH4B pH Sensor for Small Culture Tank Manual No. : IM 12B10B00-02EN Sep. 2023/4th Edition Revised/added ■After-sales warranty. (Introduction) Feb. 2020/3rd Edition Added a terminal connection to -E: FLXA402 to Pin terminal (p.i, 1, 2) Mar. 2018/2nd Edition Added FLXA202 (p.i, 1, 2) Aug. 2015/1st Edition Newly published Yokogawa Electric Corporation 2-9-32 Nakacho, Musashino-shi, Tokyo 180-8750, JAPAN http://www.yokogawa.com/...
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