Procedure Instruction 6(16)
Field Tech Manual for DMT143-series
2018-04-06
Vaisala Instruments
Second, your process may fluctuate greatly. Try adjusting Filtering on control device in an effort to
stabilize readings. Or try adjusting FILT command with USB Service Cable for DMT143 output filtering
response
Set DMT143 Measurement Filtering
Use the FILT command to view or set the speed at which the latest measurement result is integrated into
the output readings. The command affects both analog output and serial line output.
FILT [a.aaa]<cr>
where
a.aaa = Range 0.001 ... 1.0.
1.0 = No filtering, latest measurement is output without averaging
0.5 = Average of last two measurements
0.1 = Average of ca. 16 measurements (default)
Example (show current setting):
filt
Filter : 0.100 ?
Example (set filtering to 0.5):
filt 0.5
Filter : 0.500
4.3 Checking Error Messages with Service Port
If the transmitter has error messages, they can be read on the serial line using the ERRS command.
Example (one active error, caused by physical damage to the sensor):
errs
T MEAS error
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