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7.1.4 Carrier gas measurement using PLC
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The MEASURE output is low resistance during the measurement.
► Start the measurement when READY is low resistance.
After the measurement, the MEASURE output becomes high resistance. If only the
REC STROBE output is high resistance again, you can read out the analogue outputs.
This is the case after approx. 300 ms.
The READY output becomes low resistance after the reference measurement. This
lasts as long as the FINE measurement. The next measurement can only be started
after it.
Fig. 30: Example of a PLC- controlled carrier gas measurement
Fig. 31: Example of a PLC- controlled carrier gas calibration