Problem: Cannot locate Insight PC software configuration options
Wrong user mode Certain functionalities are only available in
Advanced Mode. Change between the Basic
Mode and Advanced Mode in the Settings
menu.
See Figure 56 (page 107) for the location of the
Settings menu.
12.2 Error messages
HMT370EX can display error messages either in Vaisala Insight PC software or in the
transmitter's local display.
The messages are categorized according to the severity of the status:
• Critical errors are fatal to the operation of the device. It may not be able to respond to
communication at all, and will not measure correctly.
• Errors prevent normal operation of the device. Depending on the problem, errors may
resolve themselves. For example, a completely wet humidity sensor may cause a humidity
measurement error.
• Warnings do not prevent normal operation but may indicate possible problems.
• Status indicates a known state of the device.
Error message
Description Recommended action
Critical errors
Firmware checksum mismatch Firmware is corrupted Contact Vaisala technical
support
Factory default settings
corrupted
Parameter memory is
corrupted
Device settings corrupted
Errors
Temperature sensor failure Readings from sensors missing
or out of range
Inspect probe head and
sensors visually. If the probe is
completely wet, allow it to dry
out.
If the sensors are damaged or
missing and the error
message(s) stay active, contact
Vaisala to have the probe
repaired.
Humidity sensor failure
Supply voltage out of range Supply voltage too high or low Check supply voltage
HMT370EX User Guide M212305EN-B
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