YOKOGAWA PH8ECP, User Manual, Page: 16 / 27

< 2. INSTALLATION >
2-3
IM 12B7J3-01E
(4) Supply the sensor with KCl solution. When a general purpose reserve tank is used, mount the
reserve tank in its holder with the tube connections directed downward.
Make some ventilation holes in the top side of the reserve tank using the pins provided. Loosen
the air exhaust plug in the reference electrode and allow KCl solution to flow into the sensor until
the sensor is filled with KCl solution. Plug the air exhaust hole.
Make several holes using the pin
supplied with the tank.
General purpose
Reserve Tank
KCl solution tube
F2.4E.ai
Sensor Body
Figure 2.4 Supplying KCl Solutions in the Sensor
CAUTION
For the best measurements, swing the sensor four or five times to remove air bubbles from the
electrodes before plugging the exhaust hole.
Liquid Junction
KCl Solution Inlet hole
Air Exhaust hole
F2.5E.ai
Figure 2.5 Structure of Reference Electrode in the Sensor
7th Edition : Nov.20,2018-00