Vaisala MMT162 - Manual (Page 41)

Chapter 4 ________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 39
Troubleshooting Commands
Display the Currently Active Errors
Use the ERRS command to display the currently active transmitter error
states. Possible errors and their causes are listed in Table 9 on page 49.
ERRS<cr>
Example:
errs
No errors
Test Analog Outputs
The operation of the analog outputs can be tested with the ATEST
command by forcing the output to a given value which can then be
measured with calibrated multimeter. The command uses the currently
selected analog output types for the channels (voltage or current) so you
do not have to specify the unit.
Before testing, you can verify the currently set analog output modes
using the AMODE command. After testing the output, give the ATEST
command again to exit the test mode.
ATEST [xxx yyy]<cr>
where
xxx
= Channel 1 output value (V or mA)
yyy = Channel 2 output value (V or mA)
The output shows the test values of the analog channels, and diagnostic
information that may be useful to Vaisala Service if there is a problem
with the analog outputs.
Example:
atest 1 15
1.00 2660
15.00 19425
atest
0.00 79
0.00 20110