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Available for LEL, H2S, CO, PPM H2, and CO2
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Toxic gas sensors include NH3, AsH3, Cl2, ClO2, HCN, and SO2
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Infrared sensor for combustibles and CO2
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Hydrogen-Specific sensor available
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Patented water repellent sensor coating
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4-20 mA output
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Explosion proof construction for Class I, Div. 1, Groups B, C, and D
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Optional non-explosion proof version for Class I, Div. 2
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Optional stainless steel junction box for corrosive environments
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Plug-in electrochemical toxic sensors with quick field replacement
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Flame arrestors with patented water-repellent coating
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Compatible with RKI controllers and PLC/DCS systems
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Suitable for indoor or outdoor use
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Splash guards available for wet environments
S2 Series Sensor/Detector Head
$0.00
RKI Instruments S2 Series Sensor/Detector Head is a reliable, cost-effective gas detection transmitter for Beacon fixed systems monitoring common workplace hazards.
In stock
The RKI S2 series gas sensor/transmitters are highly reliable and cost-effective for detecting common gas hazards. Available for LEL (catalytic and infrared), H2 Specific, Oxygen, H2S, CO, CO2, and toxic gases. Explosion-proof designs (Class I, Div 1, Groups B, C, D) with flame arrestors and patented water-repellent sensor coating. Optional non-explosion-proof versions for Class I, Div 2. Electrochemical toxic sensors available for NH3, AsH3, Cl2, ClO2, HCN, PH3, SO2 with quick plug-in field replacement. 4-20 mA output compatible with RKI controllers and PLC/DCS systems. Stainless steel junction box available for corrosive environments. Operating temperature -40°F to 167°F. One-year warranty.
Description
S2 Series Sensor/Detector Head
The RKI S2 series gas sensor/transmitters are highly reliable and cost-effective for detecting common gas hazards. Available for LEL (catalytic and infrared), H2 Specific, Oxygen, H2S, CO, CO2, and toxic gases. Explosion-proof designs (Class I, Div 1, Groups B, C, D) with flame arrestors and patented water-repellent sensor coating. Optional non-explosion-proof versions for Class I, Div 2. Electrochemical toxic sensors available for NH3, AsH3, Cl2, ClO2, HCN, PH3, SO2 with quick plug-in field replacement. 4-20 mA output compatible with RKI controllers and PLC/DCS systems. Stainless steel junction box available for corrosive environments. Operating temperature -40°F to 167°F. One-year warranty.
Features
Specifications
- Explosion_Proof_LEL_General_Purpose_Part
- 65-2405RK / 65-2405RK-05
- Explosion_Proof_LEL_H2_Specific_Part
- 65-2451RK / 65-2451RK-05
- Explosion_Proof_H2_PPM_Parts
- 65-2445-100 / 65-2445-500 / 65-2445-1000 / 65-2445-2000
- Explosion_Proof_O2_Part
- 65-2322RK
- Explosion_Proof_H2S_Part
- 65-2331RK
- Explosion_Proof_CO_Part
- 65-2336RK
- Explosion_Proof_CH4_IR_Part
- 65-2394RK-CH4
- Explosion_Proof_HC_IR_Part
- 65-2394RK-HC
- Explosion_Proof_CO2_IR_Parts
- 65-2396RK-02 / 65-2396RK-03 / 65-2396RK-05 / 65-2396RK-10
- Non_Explosion_Proof_O2_Parts
- 65-2320RK / 65-2321RK
- Non_Explosion_Proof_H2S_Part
- 65-2330RK
- Non_Explosion_Proof_CO_Part
- 65-2335RK
- Non_Explosion_Proof_CO2_IR_Parts
- 65-2397RK-02 / 65-2397RK-03 / 65-2397RK-05 / 65-2397RK-10
- LEL_Measuring_Range
- 0-100% LEL
- LEL_Response_Time_T90
- 30 Seconds
- LEL_Accuracy
- ± 5% of reading or ± 2% LEL
- H2_Specific_Measuring_Range
- 0-100% LEL (H2 Specific)
- H2_Specific_Response_Time_T90
- 20 Seconds
- H2_Specific_Accuracy
- ± 10% of full scale
- H2_PPM_Measuring_Ranges
- 0-100 ppm / 0-500 ppm / 0-1000 ppm / 0-2000 ppm
- H2_PPM_Response_Time_T90
- 45 Seconds
- O2_Measuring_Range
- 0-25% Vol.
- O2_Response_Time_T90
- 90 Seconds
- O2_Accuracy
- ±0.5% O2
- H2S_Measuring_Range
- 0-100 ppm
- H2S_Response_Time_T90
- 60 Seconds
- H2S_Accuracy
- ± 5% of reading ± 2 ppm H2S
- CO_Measuring_Range
- 0-300 ppm
- CO_Response_Time_T90
- 90 Seconds
- CO_Accuracy
- ± 5% of reading ± 5 ppm CO
- CH4_IR_Measuring_Range
- 0-100% LEL
- CH4_IR_Response_Time_T90
- 30 Seconds
- HC_IR_Measuring_Ranges
- 0 – 5000 ppm / 0 – 5% Vol. / 0 – 50% Vol. / 0 – 100% Vol.
- CO2_IR_Measuring_Ranges
- 0 – 5000 ppm / 0 – 5% Vol. / 0 – 50% Vol. / 0 – 100% Vol.
- CO2_IR_Response_Time_T90
- 30 Seconds
- CO2_IR_Accuracy
- ± 5% of reading or ± 2% of full scale
- Operating_Temperature_LEL_Catalytic
- -40°F to 167°F / -40°C to 75°C
- Operating_Temperature_H2_Specific
- -4°F to 104°F / -20°C to 40°C
- Operating_Temperature_H2_PPM
- -4°F to 113°F / -20°C to 45°C
- Operating_Temperature_O2
- -40°F to 104°F / -40°C to 40°C
- Operating_Temperature_H2S
- 23°F to 104°F / -5°C to 40°C
- Operating_Temperature_CO
- -40°F to 122°F / -40°C to 50°C
- Operating_Humidity
- 0 – 99% RH, non condensing
- Housing_J_Box
- Cast aluminum explosion proof, optional stainless steel J-box available
- Sensor_Housing
- Stainless steel explosion proof
- Output
- 4 – 20 mA signal
- Operating_Voltage_LEL_Catalytic
- 11 VDC to 30 VDC
- Operating_Voltage_H2_Specific
- 19 VDC to 30 VDC
- Operating_Voltage_H2_PPM
- 19-30VDC (250 OHMS impedance max)
- Operating_Voltage_O2
- 11 VDC to 30 VDC
- Operating_Voltage_Non_Explosion_Proof
- 19 VDC to 30 VDC
- Approvals
- UL / CSA / C UL US
- Warranty
- One year materials and workmanship
- Life_Expectancy_LEL
- 2 to 3 years with normal exposure to flammable gas
- Life_Expectancy_H2_Specific
- 3-5 years with normal service
- Life_Expectancy_O2
- 5 years plus with normal service
- Life_Expectancy_H2S
- 2-3 years with normal service
- Life_Expectancy_CO
- 5 years plus with normal service
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