Vaisala HMP155 - Manual (Page 56)

USER'S GUIDE____________________________________________________________________
54 _______________________________________________________________ M210912EN-C
Error States
In an error state, the quantity is not measured and the output is shown as
follows:
- Analog channel outputs 0 V (you can use the AERR serial line
command to change this fault indication value, see section AERR on
page 43).
- The serial port outputs stars (***) instead of measured values.
You can also check the error message via the serial interface by using the
ERRS
command. In case of constant error, please contact Vaisala, see
sections Technical Support and Product Returns on page 55 .
NOTE If you do not know the HMP155 serial connection settings, you can force
the settings 19200 N 8 1 with the # command. The # command is only
available in the first three seconds after power-up.
The possible error messages of HMP155 are listed in Table 15 below.
Table 15 Error Messages
Error Message Description Action
T MEAS error Error in temperature
measurement Check the HUMICAP
®
sensor.
T REF error Error in temperature
measurement Contact Vaisala Service
Center, see page 55.
TA MEAS error Error in T-probe
measurement Check the additional
temperature probe.
TA REF error Error in T-probe
measurement Contact Vaisala Service
Center, see page 55.
F MEAS error Error in humidity
measurement Check the HUMICAP
®
sensor.
F REF1 error Error in humidity
measurement Contact Vaisala Service
Center, see page 55.
F REF3 error Error in humidity
measurement Contact Vaisala Service
Center, see page 55.
Program flash
checksum error Internal error Contact Vaisala Service
Center, see page 55.
Parameter flash
checksum error Internal error Contact Vaisala Service
Center, see page 55.
INFOA checksum error Internal error Contact Vaisala Service
Center, see page 55.
SCOEFS checksum
error Internal error Contact Vaisala Service
Center, see page 55.