Vaisala HM44 - Manual (Page 43)

Chapter 10 ___________________________________________________________ Troubleshooting
VAISALA __________________________________________________________________________ 41
In the following, a short list for trouble shooting:
PROBLEM: WHAT TO DO:
the display is blank
• check the batteries
• if the batteries are in order, contact Vaisala or a
Vaisala representative
the display is dim
• during automatic data collecting, the display is
dim except when the readings are updated (once
a minute)
readings seem to be
wrong
• let the probe stabilize (see page 18)
• make sure that the probe cable is correctly
connected to the HMI41
• check that the grid and the filter are clean
• if the individual adjustment coefficients have
been entered (there is an arrow on the display),
make sure that the probe number on the display
and in the product label correspond (see page
8).
• make sure that the HMI41 function is Start 5
with probe HMP44 (see page 12)
• make sure that the adjustment coefficients are
correct (see page 7)
• check that there is marking [ID] in the HMI41
indicator label (and in the probe). If not, please
change the settings (see page 12)
you have accidentally
changed some settings • enter the setup mode (see page 9 ) select the
setting with buttons
▲or ▼.