Honeywell Sensepoint XCD RFD Technical Handbook page 45

Sensepoint XCD RFD Technical Manual
Ir-5*
Ir-7
Ir-8*
*Contact Honeywell Analytics for availability
Gas selection is dependent on the type of sensor attached to the XCD RFD. If Ir-7 sensor
is attached, then a user can only select 'mEt' gas respectively. But when Cb-3/Cb-4 sensor
is attached to the XCD RFD, a user can select the gas from Str1 (1*) to Str8 (8*). For more
information on star rating, please refer to section 19.2.
The current configuration of the XCD RFD is displayed and by using the '' switch to enter
"SEL gAS" menu. To select a flammable gas, use '' to move through the list, and then
use '' to make the selection or abort function to discard the selection and return to menu
mode.
If type of gas is changed, calibration prompt will appear to ask if you want to perform
calibration.
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
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
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.
For CSA Certified applications, use CB-6 calibrated only to Methane.
CO2
Methane
Propane
Diagram 16: Gas Selection
CAUTION
Active.
and reset the relays.
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SPXCDHMRFEN Issue 4_08-2016
CO2
mEt
ProP