LEL (General Purpose)	LEL (H2 Specific)	H2 PPM (Hydrogen)
Part Number	65-2405RK / 65-2405RK-05	65-2451RK / 65-2451RK-05	65-2442RK-1000 / 65-2442RK-2000
Sesors	Catalytic	Catalytic	Metal oxide semiconductor
Measuring Range	0-100% LEL	0-100% LEL (H2 Specific)	0-1000 ppm / 0-2000 ppm
Lower Detectable Limit (LDL)	2% of full scale	2% of full scale	2% of full scale
Accuracy (whichever is greater)	± 5% of reading or ± 2% LEL	± 5% of reading or ± 2% LEL	± 10% of reading or ± 5% of full scale
Response Time (T-90)	30 Seconds	20 Seconds	45 Seconds
Max Current Draw (24VDC)	70 mA (power wires) 25 mA (signal wires) 3 wires	70 mA (power wires) 25 mA (signal wires) 3 wires	70 mA (power wires) 25 mA (signal wires) 3 wires
Life Expectancy	2 to 3 years with normal exposure to flammable gas	3-5 years with normal service	5 years plus with normal service

General Specifications cont.
	O2 Oxygen	H2S Hydrogen Sulfide	CO Carbon Monoxide	CH4 Methane	HC Hydrocarbons	CO2 Carbon Dioxide
Part Number	65-2322RK	65-2331RK	65-2336RK	65-2394RK-CH4	65-2394RK-HC	65-2396RK-02 65-2396RK-03 65-2396RK-05 65-2396RK-10
Sensors	Galvanic cell	Electrochemical	Electrochemical	Infrared	Infrared	Infrared
Measuring Range	0-25% Vol.	0-100 ppm	0-300 ppm	0-100% LEL	0-100% LEL	0 - 5000 ppm 0 - 5% Vol. 0 - 50% Vol. 0 - 100% Vol.
Lower Detectable Limit (LDL)	0.1% Vol.	2% of full scale	2% of full scale	2% of full scale	2% of full scale	2% of full scale
Accuracy (whichever is greater)	± 0.5% O2	± 5% of reading ± 2 ppm H2S	± 5% of reading ± 5 ppm CO	± 5% of reading or ± 2% of full scale	± 5% of reading or ± 2% of full scale	± 5% of reading or ± 2% of full scale
Response Time (T-90)	90 Seconds	60 Seconds	90 Seconds	30 Seconds	30 Seconds	30 Seconds
Max Current Draw (24VDC)	25 mA max, 2 wires	25 mA max, 2 wires	25 mA max, 2 wires	60 mA (power wires) 25 mA (signal wires) 3 wires	60 mA (power wires) 25 mA (signal wires) 3 wires	60 mA (power wires) 25 mA (signal wires) 3 wires
Life Expectancy	2-3 years with normal service	2-3 years with normal service	2-3 years with normal service	5 years plus with normal service	5 years plus with normal service	5 years plus with normal service

Operating Environment
	LEL General Purpose	LEL H2 Specific	H2 PPM Hydrogen
Location	Indoor or outdoor. Explosion proof for Class I, Div. 1, Groups B, C, and D.	Indoor or outdoor. Explosion proof for Class I, Div. 1, Groups B, C, and D.	Indoor or outdoor. Explosion proof for Class I, Div. 1, Groups B, C, and D.
Temperature	-40°F to 167°F -40°C to 75°C	-40°F to 167°F -40°C to 75°C	-40°F to 167°F -40°C to 75°C
Humidity	0 - 99% RH, non condensing	0 - 99% RH, non condensing	0 - 99% RH, non condensing

Operating Environment cont.
	O2 Oxygen	H2S Hydrogen Sulfide	CO Carbon Monoxide	CH4 Methane	HC Hydrocarbons	CO2 Carbon Dioxide
Location	Indoor or outdoor. Explosion proof for Class I, Div. 1, Groups B, C, and D.	Indoor or outdoor. Explosion proof for Class I, Div. 1, Groups B, C, and D.	Indoor or outdoor. Explosion proof for Class I, Div. 1, Groups B, C, and D.	Indoor or outdoor. Explosion proof for Class I, Div. 1, Groups B, C, and D.	Indoor or outdoor. Explosion proof for Class I, Div. 1, Groups B, C, and D.	Indoor or outdoor. Explosion proof for Class I, Div. 1, Groups B, C, and D.
Temperature	4°F to 113°F -20°C to 45°C	-40°F to 104°F -40°C to 40°C	23°F to 104°F -5°C to 40°C	-40°F to 122°F -40°C to 50°C	-40°F to 122°F -40°C to 50°C	-40°F to 122°F -40°C to 50°C
Humidity	0 - 99% RH, non condensing	0 - 99% RH, non condensing	0 - 99% RH, non condensing	0 - 99% RH, non condensing	0 - 99% RH, non condensing	0 - 99% RH, non condensing

Housing
Housing J Box	Cast aluminum explosion proof, optional stainless steel J-box available
Sensor	Stainless steel explosion proof

Controls
Zero	Sets transmitter output to 4 mA with zero output from sensor
Span	Sets transmitter output to proper level when span gas is applied

Output
Output	4 - 20 mA signal

Voltage and Approvals
	LEL General Purpose	LEL H2 Specific	H2 PPM Hydrogen
Operating Voltage	11 VDC to 30 VDC	11 VDC to 30 VDC	19 VDC to 30 VDC
Approvals	65-2405RK UL / 65-2405RK-05 CSA	65-2451RK UL / 65-2451RK-05 CSA	UL

Voltage and Approvals Cont.
	O2 Oxygen	H2S Hydrogen Sulfide	CO Carbon Monoxide	CH4 Methane	HC Hydrocarbons	CO2 Carbon Dioxide
Operating Voltage	19-30VDC (250 OHMS impedance max)	19-30VDC (250 OHMS impedance max)	19-30VDC (250 OHMS impedance max)	11 VDC to 30 VDC	11 VDC to 30 VDC	11 VDC to 30 VDC
Approvals	CSA NRTL	CSA NRTL	CSA NRTL	C UL US	C UL US	C UL US

Controllers and Warranty
Controllers	Compatible with the following controllers: Beacon 110, Beacon 200, Beacon 410A, and 800, also PLC and DCS systems
Warranty	One year materials and workmanship