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2.2
pH Sensor Installation Procedures
2.2.1 Installing pH Sensor in Flow-through Holder.
(1)
Connect the KCl refilling tube to the pH sensor.
(2)
Connect pH sensor cables to associated instruments. Pass the special washers (made of
Tetrafluoroethylene resin) through sensor cables and KCl reflling tube. Remove the nut that
holds the pH sensor in the flow-through type holder. Pass the sensor cable and KCl refilling tube
through this nut.
Tip
A washer (P/N K9142YT) is supplied with a specialty flow-through holder for electrolysis (PH8HF-
PV/TF1 or PH8HF-TN/TF1) containing a Teflon coated O-ring for sealing (P/N K9142YU). The washer
is also supplied together when the O-ring itself is ordered. Please purchase separately the O-ring
containing the washer if necessary.
Figure 2.2
Connect the sensor cable correctly by referring to Section 2.3.
(3)
A general purpose reserve tank filled with KCl solution 250 mL and hardware or a medium
pressure reserve tank (where specified), are attached to the PH8ECP pH Sensor. Mount the
general purpose reserve tank holder on a 2-inch pipe. Connect the KCl refilling tube to the
general purpose reserve tank. Remove the cap from the tank and connect the tube connectors
to the tank. Mount the medium pressure reserve tank on a 2-inch pipe and connect a pipe to the
reserve tank (see Figure 2.3). Connect the sensor KCl refilling tube to the reserve tank.
Maximum Measured Solution Pressure +10 kPa
To pH Sensor
Figure 2.3
Sensor Fixing Nut
Washer
Sensor Cable Treatment
Pressure Regulator
Tubing Material : Ø6XØ4 steel pipe
Connecting Pipe to Reserve Tank
< 2. INSTALLATION >
F2.2E.ai
Air Supply
F2.3E.ai
IM 12B7J3-01E
7th Edition : Nov.20,2018-00
2-2
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