
49391
Revision 3
38
Gasurveyor 700
USER MANUAL
Note: In Confined Space Monitor (CSM) mode alarms are always set to high intensity.
5.6.2 Latching / Non Latching
In Confined Space Monitor (CSM) mode alarms are individually programmable to be either
latching or non-latching:
• Latching - alarms can only be reset once gas readings have returned to a safe level. To reset,
press and hold the
Ack
button.
• Non-Latching - alarms will automatically reset when the gas readings have returned to a
safe level.
5.6.3 Muting
In Confined Space Monitor (CSM) mode, the audible alarm can be muted for 60 seconds.
However, the visuals and displayed alarm flag 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 by pressing the
Ack
button.
• Non-latching alarm - the visual / displayed alarms clear automatically.
5.7. Warnings & Fault Alarms
5.7.1 Confidence Signal
The confidence signal is an audible (beep) and visual indication (green LEDs on the 360
°
LED bar),
every 10 seconds, that the monitor is operating correctly. The confidence signal is available only in
the Confined Space Monitor (CSM) mode.
5.7.2 Battery Warning
The ‘Low Bat’ message will flash on the display when approximately 30 minutes of runtime remain
(as shown in
Figure 51: Low Bat
)
. Recharge the monitor or replace the alkaline batteries.
Figure 51: Low Bat