Non Explosion Proof

S2 Series Oxygen (O2) 0-25% sensor (partial pressure) / transmitter, non explosion proof with j-box

$560.00

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S2 Series Oxygen (O2) 0-25% sensor (capillary type) / transmitter, non explosion proof with j-box

$560.00

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S2 Series Hydrogen Sulfide (H2S) 0-100 ppm sensor / transmitter, non explosion proof with j-box

$690.00

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S2 Series Non Explosion Proof

The RKI S2 series gas sensor/transmitters are highly reliable and very cost effective for the detection of common gas hazards. The S2 series are available for LEL, H2 Specific (LEL, and ppm), Oxygen, H2S, CO, and for a variety of toxic gases. The transmitters for LEL, H2 Specific, Oxygen, H2S, CO2, and Carbon Monoxide are explosion-proof with flame arrestors, and approved for use in hazardous areas (Class l, Groups B, C, D). An optional non-explosion proof version is available for oxygen, H2S, CO, and CO2 in Class 1 Div 2. LEL sensors are available using catalytic bead and infrared technologies.

The toxic sensors are electrochemical type plug-in sensors, which provide high specificity, fast response, and long life. The plug-in design allows quick replacement in the field with no tools required. Toxic sensors are designed for use in Class I, Div. 2 hazardous locations. Sensors available for NH3, SO2, PH3, AsH3, and HCN.

The S2 transmitters can be used either indoors or outdoors. The flame arrestors for the explosion-proof versions utilize a patented coating which make them water repellent. Splash guards are also available for use in very wet environments. An optional stainless steel junction box is available for corrosive environments.

All of the S2 transmitters are designed to interface with RKI controllers, or with PLC/DCS systems.

Available gases include LEL, H2S, CO, PPM H2, and CO2 Toxic gases include NH3, SO2, HCN, and more
Infrared sensor for combustibles and CO2
Hydrogen-Specific now available
Patented water repellent sensor coating
4-20 mA output
Explosion proof construction
Optional stainless steel junction box

Petrochemical Plants
Refineries
Gas Plants
Offshore Drilling Platforms
Water & wastewater treatment plants
Pulp & paper mills
Gas, telephone, & electric utilities
Parking garages
Manufacturing facilities
Steel
Automotive
Chemical storage buildings

	O2 (Oxygen)	H2S (Hydrogen Sulfide)	CO (Carbon Monoxide)	Toxics (See chart below)	CO2 (Carbon Dioxide)
Part #	65-2320RK	65-2330RK	65-2335RK	See chart below	65-2397RK-02
					65-2397RK-03
					65-2397RK-05
					65-2397RK-10
Sensor	Galvanic cell	Electrochemical			Infrared
Measuring Range	0-25% Vol.	0-100 ppm	0-300 ppm	See chart below	0 - 5000 ppm
					0 - 5% Vol.
					0 - 50% Vol.
					0 - 100% Vol.
Lower Detectable Limit (LDL)	0.1% Vol.	2% of full scale
Accuracy (whichever is greater)	± 0.5% O2	± 5% of reading ± 2 ppm H2S	± 5% of reading ± 5 ppm CO	± 10% of reading or ± 5% of full scale	± 5% of reading or ± 2% of full scale
Response Time (T-90)	20 Seconds	45 Seconds	30 Seconds	60 Seconds	30 Seconds
Max Current Draw (24VDC)	25 mA max, 2 wires				60 mA (power wires)
Max Current Draw (24VDC)	25 mA max, 2 wires				25 mA (signal wires), 3 wires
Life Expectancy	2 years normal service	2 to 3 years with normal service			5 years plus with normal service
Operating Environment
Location	Indoor Class I, Div. 2
Temperature	-4°F to 122°F			14°F to 104°F	-40°F to 122°F
Temperature	-20°C to 50°C			-10°C to 40°C	-40°C to 50°C
Humidity	0 - 99% RH non condensing			5-95% RH	0 - 99% RH non condensing
Housing
Housing J-Box	Cast aluminum, explosion-proof
Sensor	Plastic or aluminum
Controls
Zero	Sets transmitter output to 4 mA with zero output from sensor
Span	Sets transmitter output to 20 mA with full scale output from sensor
Operating Voltage	19 VDC to 30 VDC
Output	4-20 mA signal
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

Non Explosion Proof Toxic Assemblies

Part Number With J-Box	Gas	Range	Resolution	Sensor Type
65-2340RK-NH3	Ammonia (NH3)	0 - 75.0 ppm	0.1 ppm	ESM-01
65-2341-NH3-75	Ammonia (NH3)	0 - 75.0 ppm	0.1 ppm	CT-7
65-2341-NH3-1	Ammonia (NH3)	0 - 100 ppm	1 ppm	CT-7
65-2341-NH3-2	Ammonia (NH3)	0 - 200 ppm	1 ppm	CT-7
65-2341-NH3-5	Ammonia (NH3)	0 - 500 ppm	1 ppm	CT-7
65-2340RK-AsH3	Arsine (AsH3)	0 - 1.50 ppm	0.01 ppm	ESM-01
65-2341-CL2-3	Chlorine (Cl2)	0 - 3.00 ppm	0.01 ppm	CT-7
65-2341-CL2-5	Chlorine (Cl2)	0 - 5.00 ppm	0.02 ppm	CT-7
65-2341-CL2-10	Chlorine (Cl2)	0 - 10.0 ppm	0.1 ppm	CT-7
65-2341-CLO2-1	Chlorine Dioxide (ClO2)	0 - 1.00 ppm	0.01 ppm	CT-7
65-2340RK-HCN	Hydrogen Cyanide (HCN)	0 - 15.0 ppm	0.1 ppm	ESM-01
65-2340RK-PH3	Phosphine (PH3)	0 - 1.00 ppm	0.01 ppm	ESM-01
65-2340RK-SO2	Sulfur Dioxide (SO2)	0 - 6.00 ppm	0.01 ppm	ESM-01

S2 Wiring Matrix
S2 Transmitter	Number of Wires to Controller	Maximum Distance to Controller
S2 Transmitter	Number of Wires to Controller	18 AWG wire	16 AWG wire	14 AWG wire
LEL / IR / CO2	3	2500 ft.	5000 ft.	8000 ft.
Oxygen	2	2500 ft.	5000 ft.	8000 ft.
H2S	2	2500 ft.	5000 ft.	8000 ft.
CO	2	2500 ft.	5000 ft.	8000 ft.
Toxics	2	2500 ft.	5000 ft.	8000 ft.

S2 Datasheet

S2 65-2321RK Operator's Manual

S2 65-2320RK Operator's Manual

S2 65-2330RK Operator's Manual

S2 65-2397RK Operator's Manual

S2 65-2335RK Operator's Manual

S2 65-2320RK-100 Operator's Manual

S2 65-2341 Operator's Manual

S2 65-2340RK Operator's Manual

S2 65-2394-CH4-4 Operator's Manual

S2 65-2405RK-04 Operator's Manual

S2 65-2451RK-04 Operator's Manual

Cal cup for ESM-01 diffusion ammonia sensors, fixed systems

Cal cup for ESM-01 diffusion chlorine sensors, fixed systems

Cal cup for ESM-01 diffusion sensors, fixed systems (not for Cl2 or NH3)

Cal cup/splash guard assembly, for CT7 sensor housing

Calibration cup / splash guard, for IR 3/4” NPT sensor, with diffuser holes

Calibration kit tubing, polyurethane, 3/16” ID x 5/16” OD, 3 feet

Cylinder, Cl2 2 ppm in N2, 34AL

Cylinder, Cl2 2 ppm in N2, 58AL

Cylinder, Cl2 5 ppm in N2, 34AL

Cylinder, Cl2 5 ppm in N2, 58AL

Cylinder, CO2 5000 ppm in N2, 103L steel

Cylinder, CO2 5000 ppm in N2, 34L steel

Cylinder, CO2, 15% in N2, 34L

Cylinder, CO2, 2.5% in N2, 34L

Cylinder, CO2, 2000 ppm in N2, 34L

Cylinder, H2 250 ppm in air, 103L

Cylinder, H2 250 ppm in air, 34L steel

Cylinder, H2 4% vol in N2, 34L steel

Cylinder, H2 500 ppm in air, 34L steel

Cylinder, H2, 1000 ppm in air, 103L steel

Cylinder, H2, 1000 ppm in air, 34L steel

Cylinder, H2, 2000 ppm in air, 103L steel

Cylinder, H2, 2000 ppm in air, 34L steel

Cylinder, H2, 500 ppm in air, 103L steel

Cylinder, HCN 10 ppm in N2, 34AL

Cylinder, HCN 10 ppm in N2, 58AL

Cylinder, NH3 100 ppm in N2, 58AL

Cylinder, NH3 25 ppm in N2, 34AL

Cylinder, NH3 25 ppm in N2, 58AL

Cylinder, PH3 0.5 ppm in N2, 34AL

Cylinder, PH3 0.5 ppm in N2, 58AL

Cylinder, SO2 5 ppm in N2, 34AL

Cylinder, SO2 5 ppm in N2, 58AL

Cylinder, Zero air, 103L steel

Cylinder, Zero air, 17L steel

Gasket, CT-7 Sensor Housing, Non-XP

Gasket, ESM-01 Sensor Housing

Humidifier, 6” tube assembly for cal kits with 3/16” tubing on ends

Junction box, with spacers (Aluminum)

Regulator, with gauge and knob, 34AL/58AL/103L steel, 0.25 LPM

Transmitter, S2, LEL, 4-20 mA, standard version, 4 wire (low current) detector

Transmitter, S2, Oxygen, 0-25%, 4-20 mA, with gasket

Transmitter, S2, potted, 4-20 mA, 0-100% Oxy, with gasket

Transmitter, S2, potted, MOS, linearizing, ppm H2, 0-2000 ppm, 4-20 mA, with gasket

Transmitter, S2, potted, MOS, linearizing, ppm H2, 4-20 mA, with orienting gasket

Transmitter, S2, toxics, 4-20 mA, with gasket

Tubing, teflon/polyurethane, 1/4” OD x 1/8” ID, 3’, for toxic gas cal kits

Waterproof cover for sensors, with adhesive back, for diffusion EAGLE

Boot, filter, for ES-1531-CO filter

Cal cup, standard, fixed systems, for conduit mounting, LEL/O2/H2S/CO, (NPT type)

Cylinder, N2 100%, 17L steel

Cylinder, Propane 50% LEL in air, 34L steel

Cylinder, Zero air, 34L steel

Gasket, CT-7 Sensor Housing

J-box lid, standard blank, for Killark HKB

J-box w/o lid, machined for xmtrs

Reducer, 3/4 NPT male x 1/2 NPT female, xplprf

Screwdriver, pot adjust, no logo

Cylinder, CO 50 ppm in air, 34L steel

Cylinder, H2, 50% LEL in air, 34L steel

Cylinder, H2S 25 ppm in N2, 34AL

Cylinder, Hexane 15% LEL/air, 34L steel

Cylinder, N2 100%, 103L steel

Tubing, polyurethane, 3/16 OD x 5/16 ID, per foot

Gasket, buzzer for EAGLE 2

Charcoal Filter for CO sensor (GX-82A/-86A), fixed system CO sensors

Cylinder, CH4 50% LEL in air, 34L steel

Cylinder, CH4 50% volume in N2, 34L steel

Cylinder, N2 100%, 34L steel

Regulator, with gauge & knob, 17/34L, 0.5 LPM

Regulator, with gauge & knob, 34AL/58AL/103L, 0.5 LPM

Sensor, Carbon Monoxide (CO) 0-300 ppm, plug-in type, CT-7 style, cCSAus version

Sensor, Hydrogen Sulfide (H2S) 0-100 ppm, plug-in type, CT-7 style, cCSAus version

Sensor, IR Carbon Dioxide (CO2) 0-5000 ppm, plug-in type, non-explosion proof

Sensor, IR Carbon Dioxide (CO2) 0-5%, plug-in type, non-explosion proof

Sensor, IR Carbon Dioxide (CO2) 0-50%, plug-in type, non-explosion proof

Sensor, Ammonia (NH3) 0-500 ppm, Sensoric CT-7 style with added membrane

Sensor, Ammonia (NH3) 0-75 ppm, Sensoric CT-7 style with added membrane

Sensor, Ammonia (NH3), 0 – 75 ppm, ESM-01 plug-in type, for diffusion instruments

Sensor, Arsine (AsH3), 0 – 1.50 ppm, ESM-01 plug-in type