Critical Environment Technologies GEM-II, Руководство по эксплуатации

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54 © 2014 All rights reserved. Data subject to change without notice.
GEM-II - Operation Manual Rev. E | 2014.10
twice when the calibration begins. The audible beeps three times indicating the procedure is
finished (2 minutes).
Step 3:
Move jumpers from J6 & J7 back to their respective resting positions and remove the current
source.
8.7.3 Using a CETCI Analog Transmitter to Calibrate the Null
Step 1:
At the transmitter:
For zero calibration on the transmitter, move the jumper to position-2 and set the
voltage at TP-1 and TP-2 for “0” volts DC. If transmitter has been calibrated, TP-1 and
TP-2 should be reading “0” volts DC.
At the GEM:
Move the jumper from J6 to position-3 and the jumper from J7 to position-3 The
audible will beep once for confirmation. The system is now starting the zero
calibration stabilization time (30 seconds).
Step 2:
Attach digital multi-meter leads to test points TP-1 and TP-2. Monitor the voltage. It should start
moving towards zero gas value “0”. Reference Section
8.3 Calibration Procedure . If the audible
sounds with repetitive beeps. Reference Section 8.8 Forcing Calibration . The audible will beep
twice when the calibration begins. The audible beeps three times indicating the procedure is
finished (2 minutes).
Step 3:
Move jumpers from J6 & J7 back to their respective resting positions.
8.7.4 Using a CETCI Analog Transmitter to Calibrate the Span
Step 1:
At the transmitter:
With the transmitter still connected, move the jumper to position-2 and set voltage at
TP-1 and TP-2 for 2.00 VDC.