Honeywell Sensepoint XCD RFD Technical Manual page 33

Sensepoint XCD RFD Technical Manual SPXCDHMRFENU Issue 1
WARNING
Ensure that the same Gas Type and Range of Sensor is fitted in place of the old Sensor.
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 analog 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.
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