MPS LEL Sensor | RKI

MPS LEL Sensor

Molecular Property Spectrometer (MPS) LEL Sensor

  • Responds accurately to over 14 gases, with a calibration to methane
  • No conversion factors needed
  • Immune to poisons such as H2S, Silicone, and HCFC’s
  • Requires only annual field response checks
  • Can be used in high humidity conditions
  • Compatible with M2A, S2 & Direct Connect
  • Explosion proof approval CULUS
  • Long sensor life
  • Two year warranty on the sensor (1 year on electronics)
  • Order info:

    61-0230: LEL, MPS type sensor, 3/4 inch NPT
    61-1020: LEL, Direct Connect, MPS type detector with XP J-Box
    65-2380:
    LEL, S2, MPS type sensor/transmitter/XP J-Box
    65-2650: LEL, M2A, MPS type sensor/transmitter with J-Box

     

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Overview

Utilizing a new sensor technology, the MPS (Molecular Property Spectrometer) sensor internally identifies the gas or gases being detected, and applies the appropriate LEL conversion factor so that it will read a variety of flammable gases or vapors correctly by just utilizing a methane calibration. Other sensor technologies, such as catalytic or IR sensors, require a conversion factor to be applied during calibration or that it needs to be calibrated to the specific gas desired to be detected. This is not the case with the MPS sensor. Capable of detecting over a dozen different combustible gases simultaneously, including Hydrogen, the Molecular Property Spectrometer is unsurpassed in reliability, accuracy, and worker safety. No other sensor can match the accuracy of the MPS in reporting 0-100% LEL across multiple gases. The MPS’s robust design means it won’t drift, decay, or poison over time. Expected sensor life is over 10 years in normal applications.

Applications

  • Applications where silicone is present
  • High humidity applications where IR or catalytic may not hold up
  • Applications where a mixture of hydrocarbons could be present
  • H2 applications where poisoning of the sensor is a concern

Gases Detected

Gas Range Accuracy
Butane C4H10 0-100 %LEL ±5 %LEL
Ethane C2H6 0-100 %LEL ±5 %LEL
Hydrogen H2 0-100 %LEL ±5 %LEL
Isobutane HC(CH3)3 0-100 %LEL ±5 %LEL
Isobutylene C4H8 0-100 %LEL ±5 %LEL
Isopropanol C3H8O 0-100 %LEL ±10 %LEL
Methane CH4 0-100 %LEL ±3 %LEL
Methyl ethyl ketone C4H8O 0-100 %LEL ±5 %LEL
Octane C8H18 0-100 %LEL ±5 %LEL
Pentane C5H12 0-100 %LEL ±5 %LEL
Propane C3H8 0-100 %LEL ±6 %LEL
Propylene C3H6 0-100 %LEL ±5 %LEL
Toluene C7H8 0-100 %LEL ±12 %LEL
Xylene C8H10 0-100 %LEL ±12 %LEL

Compatible Transmitters

M2A

The M2A model is an explosion proof transmitter that can operate as a standalone system or as part of a system connected with an analog or digital signal to a controller, PLC, or DCS. The M2A-XL utilizes a magnetic wand technique for performing non-intrusive calibration. The housing does not need to be opened for zeroing or calibration.

  • Direct digital readout
  • Explosion proof housing
  • Operates independently or with any controller, PLC or DCS
  • 4-20 mA transmitter
  • igital Modbus output
  • Operates from 10-30 VDC
  • 2 programmable alarm relays, plus fail relay
  • Auto zero drift correction
  • Non intrusive calibration via magnetic wand

Ordering info:

65-2650RK: LEL, M2A, MPS type sensor/transmitter with J-Box

81-FMPS-CH4: Cal kit, fixed, MPStm sensor, CH4 50% LEL in 18% O2 with a balance of N2, 103 liter steel, regulator, screwdriver, case & tubing


S2 Series

The Direct Connect sensors can be used in two different ways. The sensors can be mounted directly to the controllers as a complete stand alone system, or they can be mounted to explosion proof junction boxes for remote detection. The plug-in design allows quick replacement in the field with no tools required. The Direct Connect sensors can be used either indoors or outdoors. The flame arrestors utilizes a patented coating, which makes it water repellent.

  • Connect directly to a Beacon controller
  • Explosion proof housing
  • Stainless steel enclosures available
  • Patented water repellent sensor coating

Ordering info:

61-1020: LEL, Direct Connect, MPS type detector with XP J-Box

81-FMPS-CH4Cal kit, fixed, MPStm sensor, CH4 50% LEL in 18% O2 with a balance of N2, 103 liter steel, regulator, screwdriver, case & tubing


Direct Connect

The Direct Connect sensors can be used in two different ways. The sensors can be mounted directly to the controllers as a complete stand alone system, or they can be mounted to explosion proof junction boxes for remote detection. The plug-in design allows quick replacement in the field with no tools required. The Direct Connect sensors can be used either indoors or outdoors. The flame arrestors utilizes a patented coating, which makes it water repellent.

  • Connect directly to a Beacon controller
  • Explosion proof housing
  • Stainless steel enclosures available
  • Patented water repellent sensor coating

Ordering info:

61-1020: LEL, Direct Connect, MPS type detector with XP J-Box

81-FMPS-CH4Cal kit, fixed, MPStm sensor, CH4 50% LEL in 18% O2 with a balance of N2, 103 liter steel, regulator, screwdriver, case & tubing

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