Honeywell Sensepoint XCD RFD, Technical Handbook

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Sensepoint XCD RFD Technical Manual SPXCDHMRFEN Issue 4_08-2016
35
To replace remote sensor of a Sensepoint XCD Flammable Sensor Socket use the
following procedure:
1. Important: Remove the Power from the Sensepoint XCD RFD Transmitter
2. Remove other accessories from the sensor socket thread.
3. Remove the Sensor Retainer with locking screw.
4. Remove the old Sensor Cartridge and replace with a fresh Sensor Cartridge.
5. Screw the accessory firmly onto the sensor until it seats against the sensor body
hexagon.
6. After fitting the new sensor, reapply power to the XCD RFD transmitter.
Note: It is possible that an F04 fault message may show on the XCD RFD display
if the new replacement sensor type does not exactly match with the original sensor
it is replacing. In this case, select sensor type from the Configuration menu. Please
refer to section 13.3.1 Sensor Selection. Remove the F04 fault message by entering
review mode. Refer to section 13.4. Review mode.
7. Select sensor type at configuration menu after remote sensor mounting. Refer to
the chapter 13.3.1 Sensor Selection.
8. And then remove fault massage by entering review mode. Refer to the chapter
13.4. Review mode.
WARNING
Ensure that the same Gas Type and Range of Sensor is fitted in place of the old Sensor.
Care should be taken when removing and refitting the Sensepoint XCD plug-in Sensor
Cartridge to the Sensor Socket so that damage to the connection pins can be avoided.
The sensor head must be fitted with the supplied weather protection, and mounted so that
the sinter is pointing downward to provide ingress protection IPX6.
The weather protection is a potential electrostatic charging hazard. The manufacturer’s
instructions should be observed.
CAUTION
The 4-20mA analogue output signal will remain INHIBITED at 2mA (default setting) while the
XCD RFD remains in Configuration Mode. However, the ALARM and FAULT RELAYS remain
Active.
Changing the configuration of the Sensor Type or the Gas Star Rating for catalytic sensors
may result in temporary activation of the ALARM or FAULT RELAYS.
Should this occur, then recalibrating the sensor will return the XCD RFD to normal condition
and reset the relays.
As a precaution, please take necessary action to manually inhibit any external actuator
or alarm devices that are connected to the XCD RFD Alarm/Fault Relays to prevent
unnecessary activation during commissioning or reconfiguration of the XCD RFD gas
detector.
To replace the Sensepoint LEL sensor please refer to the Sensepoint Technical Handbook
Part No. 2106M0502