RKI Instruments S2 Fixed Gas Sensor/Transmitter

The RKI S2 series of gas sensor/transmitters from RKI Instruments provide reliable, cost-effective detection of common gas hazards. Available for LEL, H2 Specific (LEL and ppm), oxygen, H2S, CO, and a variety of toxic gases, the S2 series can be used either indoors or out, and are designed to be used with RKI controllers such as the Beacon 110, Beacon 200, Beacon 410, or Beacon 800, or with PLC/DCS systems. S2 sensors provide an extremely high degree of accuracy, quick response, and long service life. The plug-in design allows sensors to be easily replaced in the field without tools.

Key Features:

• Available gases include LEL, H2S, CO, PPM H2, and CO2
• Toxic gases include Cl2, NH3, SO2, HCN, and more
• Infrared sensor for combustibles and CO2
• Hydrogen-specific LEL is available
• Patented water repellent sensor coating
• 4-20 mA output
• Explosion proof construction

Description: LEL General Purpose

• Measuring Range: 0-100 percent LEL
• Accuracy: +/-5 percent of reading or 2 percent LEL
• Lower Detectable Limit (LDL): 2 percent of full scale
• Response Time: 30 seconds
• Life Expectancy: 2-3 years with normal exposure to natural gas
• Part Number: 65-2405RK

Description: LEL, H2 Specific

• Measuring Range: 0-100 percent LEL (H2 Specific)
• Accuracy: +/-5 percent of reading or 2 percent LEL
• Lower Detectable Limit (LDL): 2 percent of full scale
• Response Time: 20 seconds
• Life Expectancy: 3-5 years with normal service
• Part Number: 65-2451RK

Description: H2 PPM, Hydrogen

• Measuring Range: 0-1000 ppm, 0-2000 ppm
• Accuracy: +/-5 percent of reading or 2 percent LEL
• Lower Detectable Limit (LDL): 2 percent of full scale
• Response Time: 45 seconds
• Life Expectancy: 5+ years with normal service
• Part Numbers: 65-2442RK-1000 - 0-1000 ppm 65-2442RK-2000 - 0-2000 ppm

Description: Oxygen (O2)

• Measuring Range: 0-25 percent
• Accuracy: +/-0.5 percent O2
• Lower Detectable Limit (LDL): 0.1 percent volume
• Response Time: 20 seconds
• Life Expectancy: 2-3 years with normal service
• Part Number: 65-2322RK

Description: Hydrogen Sulfide (H2S)

• Measuring Range: 0-100 ppm
• Lower Detectable Limit (LDL): 2 percent of full scale
• Response Time: 45 seconds
• Life Expectancy: 2-3 years with normal service
• Part Number: 65-2331RK

Description: Carbon Monoxide (CO)

• Measuring Range: 0-300 ppm
• Lower Detectable Limit (LDL): 2 percent of full scale
• Response Time: 30 seconds
• Life Expectancy: 2-3 years with normal service
• Part Number: 65-2336RK

Description: Methane (CH4)

• Measuring Range: 0-100 percent LEL
• Accuracy: +/- 5 percent of reading or +/- 2 percent of full scale
• Lower Detectable Limit (LDL): 2 percent of full scale
• Response Time: 30 seconds
• Life Expectancy: 5+ years with normal service
• Part Number: 65-2394RK-CH4

Description: Hydrocarbons (HC)

• Measuring Range: 0-100 percent LEL
• Accuracy: +/- 5 percent of reading or +/- 2 percent of full scale
• Lower Detectable Limit (LDL): 2 percent of full scale
• Response Time: 30 seconds
• Life Expectancy: 5+ years with normal service
• Part Number: 65-2394RK-HC

Description: Carbon Dioxide (CO)

• Measuring Range: 0-5000 ppm, 0-5.0 percent Vol., 0-50 percent Vol., 0-100 percent Vol.
• Lower Detectable Limit (LDL): 2 percent of full scale
• Response Time: 30 seconds
• Life Expectancy: 5+ years with normal service
• Part Numbers: 65-2396RK-02 - 0-5000 ppm 65-2396RK-03 - 0-5.0 percent Vol. 65-2396RK-05 - 0-50 percent Vol. 65-2396RK-10 - 0-100 percent Vol.