Vaisala DMT152 - Manual (Page 53)

Chapter 5 ________________________________________________________ Serial Line Operation
VAISALA ________________________________________________________________________ 51
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]
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 as well as
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