Fig. 4.9: Isolating the Sensor in Retractor Chamber
F1 F2
F3
F4
PROBE INSIDE
RETRACTOR
Turn handle clockwise
90° to close valve
Lift to unlock
handle
After diagnostic procedure is complete, the probe must be reinserting into the pipe to begin
monitoring ow again. When the test has been completed, carefully open shut-o valve, slide the
meter down until the ferrules rest in the tting, and tighten the compression tting nut on the tting
to seal the probe in the stream.
Check that the meter has returned to normal operation.
Operation | 82
Model FT3
Operation
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