GD-70D
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6
Detection Mode
6-1
Gas Alarm Activation
A gas alarm is activated when the concentration of detected gas reaches or exceeds the alarm setpoint.
This section describes alarms assuming an auto-reset operation.
NOTE
The alarm setpoint (first alarm and second alarm) is factory set.
The alarm delay time (standard: 2 seconds) is enabled in the detector to prevent a false activation. It can
be disabled, if desired.
<Display Operation During Alarm Condition>
Gas Concentration Display
The gas concentration is displayed on the LCD. If the concentration is above the detection range (over
scale), "
∩∩∩∩
" is displayed on the LCD instead of the gas concentration.
Alarm Indicator Lamp (ALM1: Red), (ALM2: Red)
When the first alarm setpoint has been reached, the ALM1 LED turns red.
When the second alarm setpoint has been reached, the ALM2 LED turns red.
Содержание GD-70D Series
Страница 15: ... 15 GD 70D Tubing Diagram ...
Страница 43: ... 43 GD 70D Alarm Pattern L H Alarm Pattern L LL oxygen deficiency alarm ...
Страница 45: ... 45 GD 70D Alarm Pattern L H ...
Страница 58: ...GD 70D 58 Return to Detection Mode Press the TEST key for 3 seconds ...