Thermo Fisher Scientific ECFP21A1A1 Differential pH Sensor - Manual (Page 10)

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3.2.1. Pipe Tee Mounting
Eutech Instruments’ distinct body type for its 1½ inch differential pH sensor ensure optimal positioning
of the active pH sensor electrode in the process flow. Normally available pipe tees vary widely in
construction dimensions. CPVC pipe tees are most generally available with schedule 80 walls. Stainless
steel tees have thinner walls that change the final position of the sensor.
Common mounting arrangements are shown for the short nose pH sensors.
Recommended Tee Mounting Configurations
Save the protective cap and use
it to keep electrodes moist
whenever the sensor is removed
from service.
When taking a sensor out of
storage, soak the sensor in a pH
7 buffer solution for 30 minutes
before calibration.
If the sensor does not calibrate,
refer to Section 4 to review
maintenance, refurbishment and
troubleshooting options.
The sensor should be positioned
at least 15
° up from horizontal.
This will insure that entrained air
does not form a pocket around
the sensor head.
DO NOT USE PIPE SEALANT.
Pipe sealants may not provide
adequate sealing or may react
with different plastic materials.
Use thread tape.
DO NOT OVER TIGHTEN!
Maximum torque: 65 lbs
⋅inch
(7 N
⋅m)
Figure 3.2: Short Nose Sensor Body
Figure 3.3: Short Nose Sensor Mounted in
Steel Tee or Schedule 40 PVC Tee
Optimal electrode placement with
minimum flow restriction
Dimensions: IN (mm)