Use	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.

Electrical
Input Voltage Range	12 to 32VDC (24VDC nominal)
Max Power Consumption	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
Current Output Relays	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
Communication	RS485, MODBUS RTU

Construction
Material	Housing: Epoxy painted aluminium alloy ADC12 or 316 stainless steel Sensor: 316 stainless steel
Weight (approx)	Aluminium Alloy LM25: 4.4lbs 316 Stainless Steel: 11lbs
Mounting	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)
Cable Entries	UL\cUL 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

Environmental
IP Rating	IP66 in accordance with EN60529:1992
Certified Temperature Range	-40ºF to +149ºF (-40ºC to +65ºC)

Detectable Gases and XCD Sensor Performance
Gas	Default Range	Steps	Default Cal Point	Response Time (T90) Secs	Accuracy
Electrochemical Sensors
Oxygen	25.0%Vol.	n/a	20.9%Vol.	<30	<±0.5%Vol.
Hydrogen Sulfide*	50.0ppm	0.1ppm	25ppm	<50	<±1ppm
Carbon Monoxide**	300ppm	100ppm	100ppm	<30	<±6ppm
Hydrogen	1,000ppm	n/a	500ppm	<65	<±25ppm
Nitrogen Dioxide***	10.0ppm	5.0ppm	5.0ppm	<40	<±3ppm
* 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	100%LEL	10%LEL	50%LEL	<25	<±1.5%LEL

Infrared Sensors
Methane	100%LEL	10%LEL	50%LEL	<30	<±1.5%LEL
Propane	100%LEL	10%LEL	50%LEL	<30	<±1%LEL
Carbon Dioxide	2%Vol.	n/a	1%Vol.	<30	<±0.04%Vol

Certification
US, Latin America, Canada	UL/c-UL - Class I, Division 1, Groups B, C and D, Class I, Division 2, Groups B, C & D, Class II, Division 1, Groups E, F & G, Class II, Division 2, Groups F & G. -40°C to +65°C
European	ATEX Ex II 2 GD Ex d IIC Gb T6 (Ta -40ºC to +65ºC) Ex tb IIIC T85°C Db IP66
International	IEC Ex d IIC Gb T6 (Ta -40ºC to +65ºC) Ex tb IIIC T85°C Db IP66
EMC	CE: EN50270:2006 EN6100-6-4:2007
Performance	UL508; CSA 22.2 No. 152 (flammable gasses, excludes infrared sensors); ATEX, IEC/EN60079-29-1:2007, EN45544, EN50104, EN50271; China: PA Pattern Measurement (for transmitter and toxic gas sensors) “CCCF” Shenyang for Flammable (fire dept approval)