SafEye
™
™
Series 200 IR Gas Detector - User’s and Maintenance Manual
SPETCREX INC.
Doc. No. TM792100, Rev. B, Oct..1997
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Figure 1-3. Detector
1. 6. Operation Modes
The SafEye system has three operation modes; Normal, Alignment and Calibration.
The Normal mode is used for basic operation. The Alignment and Calibration modes
are used for alignment and calibration respectively.
1. 6. 1.
Normal Mode
This mode is used for gas detection. The following status signals are possible:
Normal, Warning, Alarm, and Fault (see Table 1-2 for visual indications).
In the Normal status the signals received from gas detection is at safe levels.
In the Warning status gases have been detected at Warning levels.
In the Alarm status gases have been detected at Alarm levels.
In the Fault status there are three fault types:
•
Fault 1
In this case detection is disabled due to blockage, poor alignment, very low signal
or in the case of partial or full signal blocking. In this case the detector’s proper
operation can be restored during operation if the fault vanishes.
•
Fault 2
In this case of fault the Detection is disabled due to electrical/software running
failure or central device (memory, processor) fault. Such fault causes total failure
of the detector.
