YOKOGAWA PH8EHP, User Manual, Page: 16 / 27

< 2. Installation >
2-3
IM 12B7J2-01E
2.2 pH Sensor Cable Wiring Procedure
2.2.1 Connecting Sensor Cable
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Connecting Sensor Cable to Terminal Box
(1) Open the cable inlet hole in terminal box using the supplied punch tool. The location of the cable
inlet hole is shown by the circle-shaped groove under the case. The end of the supplied punch
tool is put in the center of this circle and it is tapped with appropriate force. You can punch out the
hole along the groove.
F2.3.ai
Hole punching tool for wiring
(supplied as accessory)
Figure 2.3 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.
Connect the sensor cable to the terminals.
After passing the cable through the nut, check the symbol on each core wire, then connect each
core wire to the corresponding terminal.
CONVER
TER
SENSOR
F2.4.ai
Figure 2.4 Connecting Sensor Cable (In case of the PH8TBG)
11th Edition : Nov.20,2018-00