Honeywell Sensepoint XCD, Technical Manual

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Sensepoint XCD Technical Manual SPXCDHMANEN Issue 2
20
7 Default configuration
The Sensepoint XCD transmitter is supplied with the following default configuration.
Function Value/Setting Meaning
Sensor Type
Automatic according to Sensor type
connected
XCD recognizes the XCD sensor cartridge according
to the gas type within its own sensor family i.e. mV,
EC or O
2
.
Signal output
≥0.0<1.0 mA
Fault (refer to table 5 section 12.3 for details)
2.0 mA or 4.0 mA (17.4mA)
Inhibit (during configuration/user settings)
For Oxygen, 2.0 mA or 17.4 mA
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) or 4.0 mA for Toxic
and Flammable
2.0 mA (default) or 17.4 mA
For Oxygen
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
* 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
Oxygen 25.0%VOL 19.5%Vol Falling 23.5%Vol Rising
Hydrogen Sulfide
50.0ppm 10.0ppm Rising 20.0ppm Rising
Carbon Monoxide 300ppm 100ppm Rising 200ppm Rising
Hydrogen 1,000ppm 200ppm Rising 400ppm Rising
Flammable IR 100%LEL 20%LEL Rising 40%LEL Rising
Flammable CAT 100%LEL 20%LEL Rising 40%LEL Rising
Carbon Dioxide IR 2.00%Vol 0.40%Vol Rising 0.80%Vol Rising
For details of how to change the configuration of the Sensepoint XCD please refer
to section 13.