GMI PS241 - 2.6 ALARMS RESET OR ACKNOWLEDGE; 2.6.1 Confidence Signal

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OPERATION
2.6 ALARMS RESET OR ACKNOWLEDGE
When the instrument detects an alarm set point has been
reached, the audible, visual and vibrating alarm will be
activated to alert the user.
The alarms are individually programmable to be either
Latching, (i.e. alarm will stay on until the user resets by a
press and hold of the Right Hand (RH) button when
the gas reading has returned within the preset alarm limits),
or Non-Latching (i.e. the audible and visual alarm will reset
automatically when the reading returns within the preset alarm
limits). Refer to Alarms Table, Chapter 4, for individual alarms.
Note: Default alarms are set in accordance with current
international standards.
The audible alarm on each pre-set alarm can be muted for a
period of 60 seconds by a press and hold of the Right Hand
(RH) button . After this period, should the gas value
remain outwith the pre-set alarm limit, the non-latching audible
alarm will become active again. If latching, the audible alarm
will become active again regardless of gas value.
2.6.1 Condence Signal
During normal operation, the instrument sounds a condence
beep and illuminates the green LED’s briey every 15 seconds.
This function makes the user aware that the instrument is
operating correctly:
Note: The condence beep and / or LED’s can be disabled.