Branch Fitting,
3/4" NPT Female
(
Supplied by
Customer
)
Compression Fitting
(Supplied by Fox)
“D/2”
L
C
Probe Diameter, 1/2”
L + D/2 + .87” =
INSERTION DEPTH
“L”
.87” (22.098 mm)
“D”
F1 F2
F3 F4
Installation Depth
The installation depth of the sensor in the pipe is dependent on the pipe size. To get the most
accurate reading, proper placement of the sensor window within the pipe is necessary. As shown in
Fig 2.5, the end of the sensor window should be 0.87" past the center line of the pipe. Review the
dimensional drawing below with the following equation to calculate insertion depth: L +D/2 + .87" =
insertion depth. Insertion depth is measured from the top of the compression tting to the bottom
end of the probe.
CAUTION! For a 1½" pipe, do not tighten compression tting without 0.2” distance from wall
or damage to probe will occur.
Fig. 2.5: Insertion Sensor Depth in Pipe
Installation | 24
Model FT3
Installation
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