Vaisala HMP155 User Manual
Page 60
USER'S GUIDE____________________________________________________________________
58 _______________________________________________________________ M210912EN-C
0801-076
Figure 13
HMP155 Adjustment Buttons
The following numbers refer to Figure 13 above:
1
=
Protective cover (unscrewed)
2 = Down
button
3 = ADJ
button
4 = Up
button
5
=
Protective plug (lifted up)
There is a two-color indicator LED located under the protective plug and
next to the Down button, see Figure 13 above. The LED is green and red.
NOTE
If you are using a warmed probe (HMP155 active output version option),
probe heating will be interrupted when ADJ button is pressed, see
Figure 13 above. Allow sufficient time for the probe to reach ambient
temperature before starting the adjustment procedure.
NOTE
Fixed pressure compensation value of 1.01325 bar is used when in
adjustment mode.