RKI Instruments GX-2009 Manual - Manual (Page 29)

GX-2009 Operator’s Manual Operation • 24
alarm setpoint (or above for oxygen Warning).
If the alarms are self-resetting, then an alarm condition will automatically
reset when the gas reading that caused the alarm decreases below the
alarm setpoint (increases above for oxygen Warning).
If a STEL or TWA alarm has been activated, it cannot be reset. You must
turn off the unit to clear the alarm.
Responding to Alarms
This section describes response to gas, over range, battery, and sensor
failure alarms.
Responding to Gas Alarms
1. Determine which gas alarm has been activated.
2. Follow your established procedure for an increasing gas condition or a
decreasing oxygen condition.
3. If your unit is set for latching alarms, reset the alarm using the POWER
MODE button once the alarm condition has been cleared.
Responding to Over Range Alarms
WARNING: An over range condition may indicate an extreme
combustible gas, toxic gas, or oxygen content condition.
Take immediate action and confirm the gas levels in the
area with a different GX-2009 or with another gas
detecting device.
1. Determine which channel is indicating the alarm.
2. Follow your established procedure for an increasing gas condition.
3. Reset the alarm using the POWER MODE button once the alarm
condition has cleared.
4. Calibrate the GX-2009 as described in “Performing a Span Adjustment
in AUTO CAL” on page 31 or “Performing a Span Adjustment in ONE
CAL” on page 36.
5. If the over range condition continues, replace the sensor that has
triggered the over range alarm.
6. If the over range condition continues after you have replaced the
sensor, contact RKI Instruments, Inc. for further instructions.