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Note: The service due date will only show at 90 days prior to the preset date.
3.8. Sensor Zeroing
At the end of warm-up, each sensor is zeroed, as shown in
3.8.1 Zero Faults
If a Zero Fault is detected, the monitor should be restarted in fresh air. If the fault persists,
recalibrate the monitor. If that fails, return the monitor to an approved service center.
Two types of Zero Fault are possible:
• A positive zero fault - indicated by a flashing gas reading.
• A negative zero fault - indicated by a wrench symbol alternating with a zero reading.
3.9. Warm-up Complete
The monitor automatically selects the Leak Test mode by default. The monitor can be configured to:
1. Start up in specific mode.
2. Start up in the mode last used.
3.10. Switch the Monitor OFF
Note: Allow the monitor to run for 1-2 minutes in fresh air before switching it OFF.
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Revision 10
Figure 13: Service Due - Switch Off
Figure 14: Zero Sensors
GT SERIES
1 INSTRUMENT, 7 APPLICATIONS
Figure 14: Zero
Sensors.
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