UltraRAE 3000 User’s Guide
Alarm Signals
During each measurement period, the gas concentration is compared
with the programmed alarm limits (gas concentration alarm limit
settings). If the concentration exceeds any of the preset limits, the
loud buzzer and red flashing LED are activated immediately to warn
you of the alarm condition.
In addition, the instrument alarms if one of the following conditions
occurs: battery voltage falls below a preset voltage level, failure of
the UV lamp, pump stall, or when the datalog memory is full.
Alarm Signal Summary
Message Condition
Alarm
Signal
HIGH Gas
exceeds
“High
Alarm” limit
3 beeps/flashes per second*
OVR Gas
exceeds
measurement range
3 beeps/flashes per second*
MAX Gas
exceeds
electronics’
maximum range
3 beeps/flashes per second*
LOW Gas
exceeds
“Low
Alarm” limit
2 beeps/flashes per second*
TWA Gas
exceeds
“TWA”
limit
1 Beep/flash per second*
STEL Gas
exceeds
“STEL”
limit
1 Beep/flash per second*
Pump
icon
flashes
Pump failure
3 beeps/flashes per second
Lamp
PID lamp failure
3 beeps/flashes per second
plus “Lamp” message on
display
119
Содержание UltraRAE 3000
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