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Test analog output, Serial line output commands, Start measurement output – Vaisala DPT146 User Manual

Page 44

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User's Guide _______________________________________________________________________

42 ___________________________________________________________________ M211372EN-D

Test Analog Output

The operation of the analog outputs can be tested with the ATEST

command by forcing the outputs to given values which can then be

measured with a calibrated multimeter. After testing the outputs, give the

ATEST command again to exit the test mode.

ATEST [ch1] [ch2]

where
ch1 = Analog output value for channel 1.

ch2 = Analog output value for channel 2.

The command output shows the test value of the analog output as well as

diagnostic information that may be useful to Vaisala Service if there is a

problem with the analog outputs.

Example (enabling analog output test mode, set level to 0 for both

channels):

atest 0 0

0.000 81

0.000 79

Example (disabling analog output test mode, resuming normal output):

atest

Serial Line Output Commands

Start Measurement Output

Use the R command to start the continuous outputting of measurement

values as an ASCII text string to the serial line. The format of the

measurement message is set with the FORM command.

R

Example (measurement message in default format):

r

Tdf= 12.5 'C P= 0.990 bara T= 24.4 'C H2O= 15489 ppm

Tdfatm= 13.5 'C

Tdf= 12.5 'C P= 0.990 bara T= 24.4 'C H2O= 15488 ppm

Tdfatm= 13.5 'C

Tdf= 12.5 'C P= 0.990 bara T= 24.4 'C H2O= 15502 ppm

Tdfatm= 13.5 'C

...