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4-7

ALARMS

Note: To avoid accidental switch-off in this dangerous state,

the off cycle is increased to 10 seconds.

4.5 FAULT ALARMS

Refer to Alarms Table, in paragraph 4.1 of this handbook, to

identify the audible / visual indication for any of the following

faults.

4.5.1 Low Battery

The ‘LOW BATTERY’ warning ashes when approximately

30 minutes operating time remains.

The display will be red, the audible alarm sounds once every

two seconds and the red LED’s ash.

Fig. 4-5 Low Battery Warning

The instrument battery must be re-charged.

Note: Gas alarms continue to operate after the ‘LOW

BATTERY’ warning appears.

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GMI PS241 Specifications

General