Sensepoint XCD SPECIFICATIONS Flammable, toxic and oxygen gas
detector for industrial applications Use Electrical Input Voltage
Range Max Power Consumption Current Output Relays Communication
Construction Material Weight (approx) Mounting Cable Entries
Environmental IP Rating 3 wire, 4-20mA and RS485 MODBUS output
fixed point detector with in-built alarm and fault relays for the
protection of personnel and plant from flammable, toxic and Oxygen
hazards. Incorporates a transmitter with local display and fully
configurable via non-intrusive magnetic switch interface. 12 to
32VDC (24VDC nominal) Maximum power consumption is dependent on the
type of gas sensor being used. Electrochemical cells = 3.7W, IR =
3.7W and catalytic = 4.9W. Maximum inrush current = 800mA at 24VDC
Sink or source 3 x 5A@250VAC. Selectable normally open or normally
closed (switch) and energized/de-energised (programmable) Alarm
relays default normally open/de-energized. Fault relay default
normally open/energized RS485, MODBUS RTU Housing: Epoxy painted
aluminium alloy ADC12 or 316 stainless steel Sensor: 316 stainless
steel Aluminium Alloy LM25: 4.4lbs 316 Stainless Steel: 11lbs
Integral mounting plate with 4 x mounting holes suitable for M8
bolts. Optional pipe mounting kit for horizontal or vertical pipe
Ø1.5 to 3" (2" nominal) ULcUL versions: 2 x ¾”NPT conduit entries.
Suitable blanking plug supplied for use if only 1 entry used. Seal
to maintain IP rating; ATEX/IECEx versions: 2 x M20 cable entries
IP66 in accordance with EN60529:1992 Certified Temperature Range
-40ºF to +149ºF (-40ºC to +65ºC) Detectable Gases and XCD Sensor
Performance Gas Electrochemical Sensors Oxygen Hydrogen Sulfide*
Carbon Monoxide** Hydrogen Nitrogen Dioxide*** User Selectable Full
Scale Range 25.0%Vol. only 10.0 to 100.0ppm 100 to 1,000ppm
1,000ppm only 10.0 to 50.0ppm Default Range 25.0%Vol. 50.0ppm
300ppm 1,000ppm 10.0ppm * Lowest Alarm Limit = 1ppm; Lowest
Detection Limit = .5ppm ** Lowest Alarm Limit = 15 ppm; Lowest
Detection Limit = 10ppm *** Lowest Alarm Limit = 0.6 ppm; Lowest
Detection Limit = 0.3ppm Catalytic Bead Sensors Flammable 1 to 8
Infrared Sensors Methane Propane Carbon Dioxide 20.0 to 100.0%LEL
20.0 to 100.0%LEL 20 to 100%LEL 2%Vol. only Certification US, Latin
America, Canada European International EMC 100%LEL Steps n/a 0.1ppm
100ppm n/a 5.0ppm User Selectable Cal Gas Range 20.9%Vol. (Fixed)
Default Cal Point 20.9%Vol. 25ppm 100ppm 500ppm 5.0ppm Response
Time (T90) Secs <30 <50 <30 Accuracy <±0.5%Vol.
<±1ppm Operating Temperature Min Max-20°C / -4°F Default Alarm
Points A1 A2 55°C / 131°F-20°C / -4°F <±6ppm <65 <40 30 to
70% of selected full scale range 10%LEL 100%LEL 100%LEL 2%Vol.
10%LEL 10%LEL n/a NOTE: For Cat Bead and Infrared sensors, Lowest
Detectable Limit is 5% LEL and Lowest Alarm Level is 10% LEL.
50%LEL 50%LEL 50%LEL 1%Vol. <25 <30 <30 <30 <±25ppm
<±3ppm <±1.5%LEL <±1.5%LEL <±1%LEL <±0.04%Vol.-20°C
/ -4°F-20°C / -4°F-20°C / -4°F-20°C / -4°F-20°C / -4°F-20°C /
-4°F-20°C / -4°F 55°C / 131°F 55°C / 131°F 55°C / 131°F 55°C /
131°F 55°C / 131°F 50°C / 122°F 50°C / 122°F 50°C / 122°F 19.5%Vol.
q 10ppm p 30ppm p 200ppm p 5.0ppm p 20%LEL p 20%LEL p 20%LEL p
0.4%Vol. p 23.5%Vol. p 20ppm p 100ppm p 400ppm p 10.0ppm p 40%LEL p
40%LEL p 40%LEL p 0.8%Vol. p
