Vaisala CARBOCAP GMW86P - Troubleshooting; Problem Situations

5 TROUBLESHOOTING
Problem Situations
Problem Possible Cause Remedy
Analog output reading is
unchanging and appears
incorrect.
Transmitter has set the
analog output to the error
level (3.6 mA or 11 V)
because the transmitter is in
the error state.
Determine what has caused
the error state and remove
the cause.
For a description of the error
state and its possible causes,
see Error State on page33.
Temperature reading is too
high.
Transmitter is installed in an
unsuitable location, for
example, near a heat source
or in sunlight.
Relocate transmitter. See
Selecting Location on
page17
.
Transmitter installed in
improper orientation.
Reinstall transmitter with the
arrow on the mounting base
pointing up.
Unsuitable operating
environment.
Verify that the operating
environment is within
specified operating limits.
CO
2
reading is too high. Source of CO
2
near the
transmitter.
n Use a portable
instrument to verify the
CO
2
reading at the
installation location. Avoid
breathing on the
instruments while
checking.
n Check for sources of CO
2
in the measured area,
such as people working
right next to the
transmitter.
CO
2
measurement module
must be replaced.
See
Replacing the CO2
Measurement Module
(GM10) on page27
.
Table 5 Possible Problem Situations and their Remedies
29
5 Troubleshooting