Vaisala HMP42 User Manual
Page 25
HMI41 AND HMP42
M210317EN-A
Operating Manual
21
set
T
Press ENTER to activate the one point temperature calibration mode.
A message similar to the following appears with the first line blinking:
set
T
°C
The blinking number indicates the temperature reference value stored in the
HMI41 memory. Check the actual temperature reference and change the
display with buttons ▲ and ▼ to correspond to the accurate value, for
example:
set
T
°C
Press ENTER and the HMI41 indicator shows the value that the probe is
currently measuring, displaying a message similar to the following:
T
°C
Wait at least ten minutes for the reading to stabilize and press ENTER to
acknowledge the value. Press ENTER again to conclude the calibration. If the
calibration has been succesful, the following message appears:
The correction data has now been calculated and stored in the HMI41 memory.
The HMI41 returns automatically to the selection of the display units, and can
be turned off. When the indicator is used as a standard indicator and the
correction data differs from the factory settings, an arrow in the upper
righthand corner is displayed: