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|
|Firmware checksum mismatch||Firmware is corrupted||Contact Vaisala technical support|
|Factory default settings corrupted||Parameter memory is corrupted|
|Device settings corrupted|
|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|
|Calibration has expired||Shown by calibration reminder functionality||
Calibrate the probe and update the calibration date information
|Unexpected device restart||Device has automatically restarted itself||Check that supply voltage is stable and operating environment is within specification|
|Calibration is about to expire||Shown by calibration reminder functionality||Calibrate the probe and update the calibration date information|