Errors - HMP155

HMP155 User Guide

Document code
M210912EN
Revision
G.1
Language
English
Product
HMP155
Document type
User guide

In an error state, HMP155 does not measure the quantity and shows the following output:

  • Analog channel: 0 V

    Use the AERR serial line command to change the value.

  • The serial port output: ***

You can check the error message through the serial interface by using the ERRS command. If the error persists, contact Vaisala Technical Support.

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 during the 3 first seconds after startup.
Error state uses settings 19200 N 8 1 automatically after a reboot.
Table 1. HMP155 error messages
Error message Description Action
T MEAS error Error in temperature measurement Check the HUMICAP sensor.
T REF error Contact Vaisala Service Center.
TA MEAS error Error in T-probe measurement Check the additional temperature probe.
TA REF error Contact Vaisala Service Center.
F MEAS error Error in humidity measurement Check the HUMICAP sensor.
F REF1 error Contact Vaisala Service Center.
F REF3 error
Program flash checksum error Internal error
Parameter flash checksum error
INFOA checksum error
SCOEFS checksum error