Chapter 4. Service and Maintenance
Moisture Target Series 6 Hygrometer User’s Manual 83
4.3 Replacing/Recalibrating Moisture Probes
For maximum accuracy, moisture probes should be returned to the factory
for recalibration every 6–12 months, depending on the application. Under
very severe conditions, more frequent calibrations are recommended
However, under very mild conditions, less frequent calibrations are
necessary. Contact a GE applications engineer for your specific
recommended calibration frequency
All new or recalibrated moisture probes must be installed in accordance
with the instructions in Chapter 2, Installation.
IMPORTANT: To maintain good contact at the terminal block and to avoid
damaging the pins on the wiring connector, pull the connector
straight off (not at an angle) the terminal block. Then, make
the cable connections while the connector is off the unit.
Finally, after the wiring is complete, push the connector
straight onto the terminal block (not at an angle).
After the probe has been installed and wired, enter the probe calibration
curve data as described in Chapter 3, Operation and Programming. Each
probe is shipped with its own Calibration Data Sheet, which includes the
serial number for that probe.
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