QRAE II User Guide
Page 55
9 Maintenance
WARNING!
Maintenance should be performed only by a qualified person who has proper
training and fully understands the contents of this manual.
The following guidelines should be followed when changing components:
1. Turn off the unit and unplug the charger before changing a battery.
2. When changing a sensor, detach the battery first. Identify the location of a specific
sensor and pay attention to the sensor pin orientation when removing and plugging in
sensors.
WARNING
To reduce the risk of ignition of hazardous atmospheres, recharge battery only in
area known to be non-hazardous. Remove and replace battery only in an area
known to be non-hazardous.
9.1 Replacing the QRAE II Li-Ion Battery
Caution: Turn off the QRAE II before removing or replacing the battery.
1. Place the QRAE II face-down on a soft surface.
2. Use the hex wrench to loosen each of the three screws by turning them
counterclockwise.
3. Hold the QRAE II down and lift the compartment cover by pulling on the belt clip.
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