S2 Series Diffusion Sensor / Transmitter - Non Explosion Proof

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Item #: 65-23
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S2 Series Diffusion Sensor / Transmitter - 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 I, Groups B, C, D). An optional non-explosion proof version is available for oxygen, H2S, CO, and CO2 in non-hazardous atmospheres. LEL sensors are available using catalytic bead and infrared technologies. 

The J-Box (junction box)  is needed for remote runs away from the controller.

The S2 transmitters can be used either indoors or outdoors. The flame arrestors for the explosion-proof versions utilized 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.

Features:

  • Available gases include: LEL, H2S, CO, PPM, H2 and CO2
  • Infrared sensor for combustibles and CO2
  • Patented water repellent sensor coating
  • 4-20 mA output
  • Optional stainless steel junction box
Applications:
  • Petrochemical plants
  • Refineries
  • Gas Plants
  • Offshore Drilling Platforms
  • Water and wastewater treatment plants
  • Pulp & paper mills
  • Gas, telephone & electric utilities
  • Parking garages
  • Manufacturing facilities
  • Steel 
  • Automotive
  • Chemical storage buildings 

Download Product Datasheet (PDF) click here

S2 Series Diffusion Sensor / Transmitter - Non Explosion Proof

Non-Explosion Proof

O2 Oxygen

H2S Hydrogen Sulfide

CO Carbon Monoxide

Toxics See chart below

CO2 Carbon Dioxide

Part #65-2321RK65-2330RK65-2335RKSee chart
below
65-2397RK-02 
65-2397RK-03 
65-2397RK-05 
65-2397RK-10
SensorGalvanic cellElectrochemicalInfrared
Measuring Range0-25% Vol.0-100 ppm0-300 ppmSee 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+/- 5% of full scale (0.5% volume for oxygen)
Life Expectancy2 years normal
service
2 to 3 years with normal service5 years plus with
normal service
Response Time (T-90)20 Seconds45 Seconds30 Seconds60 Seconds30 Seconds

Operating Environment

LocationIndoor Class I, Div. 2
Temperature-4°F to 122°F -20°C to 50°C14°F to 104°F -10°C to 40°C-4°F to 122°F -20°C to 50°C
Humidity0 - 99% RH non condensing5-95% RH0 - 99% RH
non condensing

Housing

Housing J-BoxCast aluminum, explosion-proof
SensorPlastic or aluminum
Controls
ZeroSets transmitter output to 4 mA with zero output from sensor
SpanSets transmitter output to 20 mA with full scale output from sensor
Operating Voltage19 VDC to 30 VDC
Output4-20 mA signal
ControllersCompatible with the following controllers: Beacon 110, Beacon 200, Beacon 410, and 800, also PLC and DCS systems
WarrantyOne year materials and workmanship

S2 Series Diffusion Sensor / Transmitter - Non Explosion Proof

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