Servicing; Sensor Replacement - Honeywell RAEGuard 3 User Manual

10 Servicing

Take care when handling sensors as they may contain corrosive solution. Do not
temper or in any way dis-assemble the sensor. Do not expose to temperatures
outside the recommended range. Do not expose sensor to organic solvents or
Care should be taken when removing and refitting the RAEGuard 3 sensor
modules to the Sensor Socket so that damage to the connection pins can be
At the end of their working life, replacement electrochemical sensors for oxygen
and toxic gas must be disposed of in an environmentally safe manner. Disposal
should be according to local waste management requirements and environmental
Alternatively, old replaceable sensors may be securely packaged and returned to
Hoenywell Analytics clearly marked for environmental disposal.
Electrochemical sensors should NOT be incinerated as this action may cause the
Note:
The following procedure should be followed carefully and only performed by
suitably trained personnel.
For Flammable and NIDR sensors, it is forbidden to carry out hot plugging, which
may damage the sensor or cause danger.

10.1 Sensor replacement

The Flammable Catalytic and Toxic ECC sensor that are used with the
RAEGuard 3 Sensor Socket have no serviceable parts. When they have
reached the end of their operational life, simply replace the cells.
To replace the plug-in sensor of a RAEGuard 3 Sensor Socket for Flammable
and NDIR use the following procedure:
Important: Remove the Power from the RAEGuard 3 transmitter.
1.
Remove the Waterproof Cap or other accessories from the sensor
2.
socket thread.
Loosen the two Locking Grub Screw with Z-tool and unscrew the
3.
Sensor Cartridge Retainer.
Carefully pull the old Sensor from the sensor socket without twisting.
4.
Fit the new sensor in its place.
5.
Calibrate sensor.
6.
WARNINGS
flammable liquids.
avoided.
legislation.
cell to emit toxic fumes.
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RAEGuard 3 User Manual