Simtronics GD1 MK3 Operating Manual page 38

The above spectrum is found in GD1 Web interface. Spectrum to the left showing
472 ppm of CO in the air. To the right a spectrum showing 1 191 ppm as a result of
2
introducing the Test Cell filled with 40 000 ppm CO
formula in step 4.
Note! Depending on the precision of the gas mix inside the Test Cell, do not expect to see an
exact 1:1 response compared to the test gas concentration.
Run loop testing in the Web interface "I/O
verification" screen.
5 Recommend to use 60 sec test time.
Enter test value. For example 12 mA is 50% of full
scale.
After the GD1 goes into "IO Verify" mode, verify
6
that the analogue output matches the test value.
GD1
Functional test with CO
Page 38 of 76
.The value can be verified by using the
2
finished!
2
850-816926-EN R06