© 2014 All rights reserved. Data subject to change without notice.
51
Rev. E | 2014.10
GEM-II - Operation Manual
Step 5:
Move jumpers from J6 & J7 back to their respective resting positions and remove the span gas.
8.5 Calibrating second Internal sensor
Calibration of the second internal sensor has only one difference from the first internal sensor
calibration. Move the jumper from J6 to position-3 then follow the same procedure as outlined
in Section 8.4.1 to 8.4.3 using J6 position-3.
8.6 Calibrating Remote Catalytic or solid state sensor
8.6.1 Setting Span Gas Value (remote catalytic or SS sensor)
Step 1:
Move jumper on J6 to position-3 and move jumper on J7 to position-2. Audible alarm beeps
once for confirmation. The system is now waiting for the user to set the desired value.
Step 2:
Attach digital multi-meter leads to test points TP-1 and TP-2. Reference Section
8 Calibration
.
Step 3:
Using the UP or DOWN push-buttons, achieve the calculated voltage on the digital multi-meter.
Reference Section
8.3 Calibration Procedure
.
Step 4:
Move jumpers from J6 & J7 back to their respective resting positions.
8.6.2 Calibrating the Null (Zero) Value (remote catalytic or SS sensor)
Step 1:
Attach regulator to cylinder of zero air, attach flow adapter and open regulator valve fully
allowing zero air to flow over sensor. Use a slight twisting motion as you gently push the
calibration adapter into the sensor opening. If the calibration adapter is hard to insert, moisten
the O-ring seal slightly then try re-inserting it.
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