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6 Individual Operations
6-1
Gas alarm pattern
Gas alarm: Triggered if the concentration of the detected gas reaches or exceeds the alarm
setpoint
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Auto reset or self-latching operation
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NOTE
•
The gas alarm operation will depend on the operation of the gas detector(s) connected to
the product.
•
The gas detector alarm setpoints (first and second alarms) and alarm pattern (auto reset or
self-latching) are factory-set before shipment.
•
An alarm delay (standard setting: two seconds) is set for gas detectors to prevent
accidental alarm activation.
<Indications>
•
Gas concentration display
Displays the current gas concentration.
•
Alarm status display (ALM1: Yellow), (ALM2: Red)
The alarms are two-step alarms.
The alarm lamps light up when the corresponding alarm setpoint is reached or exceeded.
The alarm status display differs for Chart (list screen) and Details (details screen).
Chart (list screen)
When a first alarm occurs, the title information ALM1 and the corresponding gas detector
information light up in yellow.
When a second alarm occurs, the title information ALM2 and the corresponding gas detector
information light up in red.
Details (details screen)
When a first alarm occurs, the title information ALM1 and [Gas alarm (ALM1)] light up in
yellow.
When a second alarm occurs, the title information ALM2 and [Gas alarm (ALM1)] light up in
yellow, and [Gas alarm (ALM2)] lights up in red.