Chapter 3: Service and maintenance
3.1 The service menus
IMPORTANT
The service menus are accessible only by using the
factory-level passcode.
After entering the factory
level passcode, use the
arrow keys to scroll to
service and press enter.
To check the version levels
of your HygroPro firmware,
select versions and press
enter. The information for
your unit is displayed.
The following HygroPro service menu options are also
available:
• Upgrade - used to install an updated firmware version
• Default analyzer - used to reset all settings to the
factory defaults
Select the desired service
menu option and press
enter. Then, follow the on-
screen instructions.
After completing the
above step, respond to the
ARE YOU SURE? question.
Be sure to respond yes, if
you wish to save the new
information.
3.2 Moisture probe error conditions
IMPORTANT
All moisture probes require periodic cleaning to maintain
optimum accuracy. Consult the Panametrics service
center for the recommended probe cleaning interval for
your application.
If there is a problem with the moisture probe during
operation, the HygroPro is programmed to indicate the
error condition via its analog output signal. To indicate a
probe error condition, the analog output signal is forced
to the following values:
• ≥22 mA to indicate a short circuit in the probe
• ≤3.5 mA to indicate an open circuit in the probe
If you have one of the above error conditions, follow the
probe cleaning instructions in the next section.
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