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RKI Instruments S-Series Diffusion Sensor/Transmitter (IR), Lower Explosive Limit (LEL) - Isobutane, Junction Box (UL Version)

RKI Instruments - S-Series Diffusion Sensor/Transmitter (IR), Lower Explosive Limit (LEL) - Isobutane, Junction Box (UL Version)

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DESCRIPTION
SPECIFICATIONS
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The RKI S-Series gas sensor/transmitters are highly reliable and cost effective basic 4-20 mA transmitters for the detection of common gas hazards. This S-Series transmitter detects lower explosive limit (LEL) infrared (IR) for hydrocarbons (HC). The electronics are encased inside a potted package to avoid damage from mechanical abuse or corrosion, and this assembly is installed inside an explosion-proof enclosure. All sensors are explosion-proof with flame arrestors and approved for use in hazardous atmospheres. The only tools required to calibrate the S-Series are a voltmeter, screwdriver, and calibration gas. The zero and calibration functions are performed by adjusting potentiometers on the amplifiers. The amplifier has test jacks for connecting to a voltmeter for calibration purposes, and the sensor response is viewed on the voltmeter as a 100 mV to 500 mV signal. Field calibration can be performed easily and quickly by one person. The S-Series transmitters can be used either indoors or outdoors. The flame arrestors utilize a patented coating which make them water repellent, and splash guards are also available for use in very wet environments. The transmitter operates from 24 Volt DC (11 Volt DC to 30 Volt DC) and provides a 4-20mA signal which can be connected to a wide variety of controllers.

Part No. 65-2390RK-HC

Specifications

Hydrocarbon Range: 0 to 100% LEL
Maximum Current Draw: 60mA (Power Wires) and 25mA (Signal Wires)
Signal Output: 4-20mA
Response Time: 30 Seconds to 90% of Reading
Sensor Type: Infrared
Operating Temperature: -4 F to 122 F
Relative Humidity: 0 to 99% RH
Enclosure: Aluminum Explosion Proof
Power: 11 Volt DC to 30 Volt DC
Controls: Span or Zero

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