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Error message
Critical errors
Firmware checksum mismatch
[49]
Device settings corrupted [50]
Additional configuration
settings corrupted [51]
Sensor coefficients corrupted
[52]
Main configuration settings
corrupted [53]
Factory default settings
corrupted [54]
Non-volatile memory read
write failure [57]
Errors
Temperature measurement
error [44]
Humidity measurement error
[45]
Humidity sensor failure [46]
Capacitance reference error
[47]
Sensor heater error [212]
General device failure [994]
Ambient temperature out of
range [48]
Supply voltage out of range
[55]
Description
The installed firmware is
corrupted.
Parameter memory is
corrupted.
Hardware fault.
Readings from sensor(s) are
missing or out of range.
Hardware fault.
High number of measurement
errors, capacitance reference
errors, or sensor heater errors
written in the error log.
Probe handle is too hot or cold. Relocate the probe handle so
Probe supply voltage is too
high or low.
Chapter 9 – Troubleshooting
Recommended action
Contact Vaisala technical
support.
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.
Contact Vaisala technical
support.
that its ambient temperature is
within the specified operating
range.
Check and correct the supply
voltage.
39
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