27
ALARMS
Geiger Alarm
An audible and visual Geiger alarm, enabled in the PPM
Flammable range, provides indication of a larger gas
concentration via an increasing rate of sounder and LED
pulses.
Pressing
B3
will change the audio / visual (A/V) indicator
options:
i
Geiger alarm is only active in Search mode.
Alarm Mute
If confi gured, the audible alarm can be muted for 60 seconds. However, the visual and displayed
alarms will remain active. After 60 seconds the audible alarm will reactivate.
When the audible alarm is muted and gas levels fall below the alarm set-points:
• Latching alarm - the visual / displayed alarms can be cleared (Ack) by pressing
B3
.
• Non-latching alarm - the visual / displayed alarms clear automatically.
Confi dence Signal
The confi dence signal is an audible (beep) and / or visual indication (360
o
LED bar - green LED’s),
every 10 seconds, that the instrument is operating correctly. The confi dence signal is enabled in
CSM mode only.
Key Press
Geiger Indicators
B3
- A / V
Display Icon Audible Visual
Default
OFF
OFF
1
st
Press
ON
OFF
2
nd
Press
OFF
ON
3
rd
Press
ON
ON
4
th
Press -
Returns to default
OFF
OFF
