Vaisala hmdw110 series, User Manual

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Problem Likely Cause Possible Solution
Transmitter is not
responding to serial
commands. Unknown serial line
settings or Modbus
mode in use. Temporarily override the transmitter's serial line
settings as instructed in
Accessing Service Port
Command Interface in Devices With Modbus
Output (page 33)
.
Transmitter is in poll
mode. Open a connection to the transmitter with the
open
command. See Table 20 (page 43) .
If you do not know the transmitter's address,
give the
?? command to make the transmitter
output its status information, including the
address.
8.2 Error Messages in Insight Software
Table 42 Error Messages in Insight Software
Error Likely Cause Suggested Solution
Temperature
measurement error.
[44] Temperature sensor is
short circuited,
damaged, or missing. Check that the legs of the temperature sensor
are not short circuited. Contact a Vaisala Service
Center if the temperature sensor is damaged.
Humidity
measurement error.
[45] Humidity sensor is wet. Wait for the humidity sensor to dry, or remove
the filter and gently dry the sensors and the
filter with clean instrument air.
Humidity sensor
failure. [46]
Humidity sensor is
damaged or missing.
Replace the humidity sensor or contact a Vaisala
Service Center.
Ambient temperature
out of range. [48] Ambient temperature
is too high. Lower the temperature at the installation site.
Supply voltage out of
range. [55] Supply voltage is too
low. Check and correct the power supply and wiring.
HMDW110 User Guide M211726EN-D
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