3
GF 2751-7 pH Electronics
Lubricate O-rings with a non-petroleum based, viscous lubricant (grease) compatible with the system.
It is not necessary to lubricate the electrodes body O-ring when using the 463X Flow Cell.
Do Not Use Lubricant or Sealing Tape on Threads.
Do Not Overtighten.
3610 Flow Tee Installation
1. Lubricate the Dry-Loc and the electrode body O-rings
with a non-petroleum lubricant.
2.
Insert fully into the fitting.
3.
Install bottom retaining nut onto the fitting and hand
tighten. Do not use tools.
1. Lubricate the Dry-Loc O-ring with a non-petroleum
lubricant. (DO NOT lubricant the electrode body O-ring.)
2. Insert the sensor into the 2751-7.
3.
Insert into the Chlorine (CI) flow chamber and push
lightly to secure.
pipe tee
pipe tee
pipe tee
9950-X
CH 2
Installation
The bottom yellow nut is
not used when using the 2751-7
pH electronics with the 463X Flow
Cell.
3-2724-00
Flat pH Electrode
463X Flow Cell
463X Flow Cell Installation
CHEMICAL COMPATIBILITY WARNING
The retaining nuts of pH and ORP sensors are not designed for prolonged contact with aggressive substances.
Strong acids, caustic substances and solvents or their vapor may lead to failure of the retaining nut, ejection of
the sensor and loss of the process fluid with possibly serious consequences, such as damage to equipment and
serious personal injury. Retaining nuts that may have been in contact with such substances, e.g. due to leakage
or spilling, must be replaced.
Wiring
Wiring to the 9950-X Chlorine Controller
To replace the 2751-7 pH electronics in a 463X Chlorine panel:
•
Measuring from the yellow housing threaded end, cut the cable to approximately 838 mm (33 in.).
•
Remove approximately 10 mm (0.4 in.) of insulation and tin each conductor before inserting into terminals.
• For calibration and configuration please refer to the 463X Chlorine Analyzer System and
9950-X Chlorine Controller manuals.
CH1
+V
FREQ
DATA
GND
Black
White
X
No connection
Shield
Red
IN
OUT
pH
Cl
