Honeywell Sensepoint XCD RFD, Technical Handbook

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Sensepoint XCD RFD Technical Manual SPXCDHMRFEN Issue 4_08-2016
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7 Default configuration
The Sensepoint XCD RFD transmitter is supplied with the following default configuration.
Function Value/Setting Meaning
Sensor Type
Automatic for Sensepoint XCD RFD
sensors. Must be set for Sensepoint
and 705 sensors.
XCD RFD recognizes the XCD RFD sensor cartridge
according to the gas type within its own sensor family
i.e. mV. For a Sensepoint and 705 sensor the user
must set the sensor type.
Signal output
≥0.0<1.0 mA Fault (refer to table 9 section 12.3 for details)
2.0 mA or 4.0 mA Inhibit (during configuration/user settings)
4.0 mA to 20.0 mA Normal gas measurement
22.0 mA Maximum over range
Alarm Relay 1*
Value is sensor dependant Lower alarm level
De-energized Energizes on alarm
Contact Normally Open (NO) Closes on alarm
Alarm Relay 2*
Value is sensor dependant Higher alarm level
De-energized Energizes on alarm
Contact Normally Open (NO) Closes on alarm
Fault Relay
<1mA Detector Fault
Energized De-energizes on alarm
Contact Normally Open (NO) Closes on alarm
Inhibit 2.0 mA (default)
Signal output inhibited during menu use
If any relay is set to inhibit relay, then inhibit relay will
be activated.
Timeout Disabled
No inhibit timeout. The detector waits for a button
press before returning to the previous state/setting
Timeout period can be set in ‘Configure Inhibit’ menu
in Configuration Mode.
Password 0000 (Disabled)
0000 (Password disabled). If changed then password
is activated.
Location
(Tag Number)
0000
Optional feature to identify the location or User’s “Tag”
number of the XCD
Temperature
o
C Option to have
o
C or
o
F
Modbus ID, baud rates and Parity bit
ID : 1
Baud rates : 19,200
Parity bit : EVEN
* Alarm relays automatically reset when reading falls within alarm thresholds. If relay configured to LATCH, then relays must be reset using
the Magnetic Wand.
Table 3: Default configuration
Gas Name Default Range Lower Alarm Lower Alarm
Type
Higher Alarm Higher Alarm
Type
Sensepoint Flammable 100%LEL 20%LEL Rising 40%LEL Rising
Sensepoint HT Flammable 100%LEL 20%LEL Rising 40%LEL Rising
Sensepoint HT Flammable 20%LEL 10%LEL Rising 15%LEL Rising
705 Flammable 100%LEL 20%LEL Rising 40%LEL Rising
705 HT Flammable 100%LEL 20%LEL Rising 40%LEL Rising
XCD Flammable CB* 100%LEL 20%LEL Rising 40%LEL Rising
XCD Methane IR 100%LEL 20%LEL Rising 40%LEL Rising
XCD Propane IR* 100%LEL 20%LEL Rising 40%LEL Rising
Carbon Dioxide* 2.00%Vol 0.40%Vol Rising 0.80%Vol Rising
*Contact Honeywell Analytics for availability
For details of how to change the configuration of the Sensepoint XCD please refer
to section 13.