Others, Itest testing the analogue outputs, Itest – Vaisala HMP230 User Manual
Page 103: Testing the analogue outputs
HMP230 SERIES
M210225en-B
Appendix 1: Serial commands
97
4.
OTHERS
ITEST
Testing the analogue outputs
ITEST <cr>
or
ITEST a b <cr>
a
=
current/voltage of channel 1
b
=
current/voltage of channel 2
The operation of the analogue outputs can be tested by forcing the outputs to
given values which can then be measured with a current/voltage meter from
the analogue outputs. The response to ITEST command gives six out-
puts/parameters. Only the first two are relevant; they show the channel current
or voltage in mA or V. The other four figures contain information for service
purposes only.
Examples:
•
reading the channel outputs and parameters
>itest <cr>
1.9438
2.3483
1.00694 10.64634
1.97374
2.17665
>
•
forcing outputs 0.5 V and 4 V to channels 1 and 2
>itest 0.5 4 <cr>
0.5000
4.0000
1.00694 10.62970
1.23336
3.01722
>
•
releasing the forced control and reading the outputs
>itest <cr>
1.9427
2.3392
1.00731 10.62428
1.97157
2.16978
>