Critical Environment Technologies GEM-II, Руководство по эксплуатации

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GEM-II - Operation Manual Rev. E | 2014.10
Step 2:
Move jumper on J6 to position-2 and move jumper on J7 to position-3. The audible alarm
beeps once for confirmation. The system is now starting the zero calibration stabilization time
(30-seconds).
Step 3:
Attach digital multi-meter leads to test points TP-1 and TP-2. Reference Section 8 Calibration .
The voltage should be 0.0 VDC. If the audible sounds with repetitive beeps, see Section 8.8
Forcing Calibration . The audible will beep twice when the calibration begins. Leave the zero air
flowing over the sensor until the GEM audible beeps three times indicating the procedure is
finished (1-minute).
Step 4:
Move jumpers from J6 & J7 back to their respective resting positions and remove the zero air or
Nitrogen.
8.4.3 Calibrating the Span Gas (internal sensor)
Step 1:
Attach regulator to cylinder of span gas.
Step 2:
Insert the calibration adapter into the sensor opening in the front of the enclosure door. Open
regulator valve fully and allow span gas to flow over sensor.
Step 3:
Move the jumper on J6 to position-2 and move jumper on J7 to position-4. The audible alarm
“beeps” once for confirmation. The system is now starting the span calibration stabilization time
(30 seconds).
Step 4:
Attach digital multi-meter leads to test points TP-1 and TP-2. Monitor the voltage. It should start
moving towards the voltage calculated for the span gas value (reference Section
8.3 Calibration
Procedure ).
If the audible sounds with repetitive beeps, see Section 8.8 Forcing Calibration .
The audible will beep twice when the calibration begins. Leave the span gas flowing over the
sensor until the GEM audible beeps three times indicating the procedure is finished (2-minutes).