Requirements For Mounting The Ph Sensor; In Case Of Installing The Ph8Hg Guide-Pipe Holder - YOKOGAWA PH8ERP User Manual

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2.2

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.
(2) Attach the "stopper" supplied with the guide pipe to the sensor cable.
Fix the sensor cable so that the sensor tip projects 20 to 30 mm out from the pipe end when
the pH sensor is suspended in the guide pipe as shown in Figure 2.3.
NOTE
If the sensor tip does not project out from the pipe end, the measured value may not respond
promptly to the pH variations of the measured solution. This may cause problems for pH
measurement and control. On the other hand, if the sensor tip projects too far from the pipe end,
the force on the sensor may damage the sensor cable from scraping it against the pipe.
Sensor Cable
Arm Pipe
Guide Pipe
20 to 30 mm
Figure 2.3
Cable Clamp
Attaching "Stopper"
Stopper
pH Sensor
Mounting Sensor in Guide Pipe
Sensor Cable
2-inch (60.5 mm O.D)
Mounting Pipe
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IM 12B7K1-02E 11th Edition : Dec.14,2018-00
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