GT3000
CO2 TRANSMITTER, 0-2000 PPM
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Figure 2. PCB with jumper to configure OUT2 for current output 4─20mA or voltage output
2─10VDC
Figure 3. Enlarged picture of the PCB with the jumper set to current output (left position)
Figure 4. Enlarged picture of the PCB with the jumper set to voltage output (right position)
Self-diagnostics
The system contains a complete self-diagnostic procedure that is executed automatically
when the sensor is in operation. The yellow LED is lit if an error is found. Sensors with display
show a wrench if an error is found. The wrench is shown and the yellow LED is lit during the first
seconds after power up and if the measuring range exceeded. They are automatically turned
off when the sensor returns to normal operation. The output OUT2 indicates the same
information by setting the output voltage to 1V or 2 mA.
Maintenance
The unit is basically maintenance free in normal environments thanks to the built-in
selfcorrecting ABC algorithm. Discuss your application with Nieuwkoop B.V. in order to
get advice for a proper calibration strategy.
