Operating the MultiRAE Plus
11
Alarm Signal
Alarm Condition
beep/sec
flash/sec
vibration*
Screen
Message
Reset
Alarm
Gas concentration exceeds High
Alarm
3
3
yes
sensor name
“HIGH”
move away from gas
Gas concentration exceeds Low
Alarm
2
2
yes
sensor name
“LOW”
move away from gas
Gas concentration exceeds STEL
1
1
yes
sensor name
“STEL”
move away from gas & wait 15
minutes
Gas concentration exceeds
TW
A
1
1
yes
sensor name
“TW
A”
move away from gas & turn unit
OFF/ON
Gas concentration exceeds sensor range
3
3
yes
sensor name
“OVR”
move away from gas
Unit short circuits
or
Reading over max range
3
3
yes
sensor name
“MAX”
indicates possible sensor
failure. calibrate sensor to verify
performance
Excessive sensor negative drift
1
1
yes
sensor name
“NEG”
perform zero calibration
Blocked inlet
or
Pump failure
3
3
yes
“PUMP”
unblock inlet; press
to restart pump
PID lamp fails to light
3
3
yes
“LAMP”
turn of
f/on or wait;
lamp may turn on by itself
Excessive LEL
gas
or
LEL
sensor is OFF
3
3
yes
sensor name
“OFF”
move away from gas & turn LEL
sensor ON (press )
Low battery
1/min
1/min
no
“Bat”
charge battery
Datalog memory full
1
1
yes
“Mem”
clear datalog memory or turn on
“wrap-around
Datalog memory write error
1
1
yes
“EEm”
turn unit OFF/ON
*The external vibration alarm is an optional feature.
Y
/+
Y
/+
