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Electro Optical Components offers a wide range of N.E.T. sensors based on the Non Dispersive InfraRed principle (NDIR), designed for a reliable detection of the following gases:

  • CO2 from ppm levels up to 100% volume
  • Hydrocarbons in explosive range (%LEL)
  • SF6 in ppm range
  • Refrigerant gases in ppm range

Different from other sensors on the market, IRNET-P sensors have a microprocessor for internal signal processing, offering an engineered output, already linearized and temperature compensated. For this, IR sensors are suited for instrument manufacturers without any specialist knowledge in IR technology.

Main features of NDIR sensors:

  • 20 or 32 mm industrial standard size
  • Extended temperature range
  • Fast 90 response time
  • Internal microprocessor for concentration calculation
  • ModBus or P2P communication
  • Solid, rugged construction with stainless steel enclosure
  • Voltage output and optional bridge or pellistor output
  • Low power consumption version for portable applications
  • Patented optical path
  • Water filter
  • Standard industrial accepted negative or positive pinout
  • Individual calibration and testing

IR Part Number Specs

NDIR sensors for CO2 or HC detection

The IR series of infrared gas detection sensors uses the technique of NDIR (Non Dispersive Infrared) to monitor the presence of hydrocarbons or carbon dioxide. This technique is based on the fact that the gas has a unique and well defined light absorption curve in the infrared spectrum that can be used to identify the specific gas. The gas concentration can be determined by using a suitable infrared source and analyzing the quantity of energy absorbed from the gas inside the optical path.

IRNET-P 32mm
ATEX certified and SIL2 approved NDIR sensor for CO2 or HC detection

IRNET-P 32mmPart NumberGasRangeCerts
DS3706Methane (CH4)0 - 100%
0 - 5%
ATEX
SIL2
(TÜV approved)
DS3707Propane (C3H8)0 - 100%
0 - 2.1%
DS3708Carbon Dioxide (CO2)0 - 5000ppm
0 - 1%, 5%

IRNET-P 20mm
ATEX certified and SIL2 approved NDIR sensor for CO2 or HC detection

IRNET-P 20mmPart NumberGasRangeCerts
DS3689Methane (CH4) High Range0 - 100%ATEX
SIL2
(TÜV approved)
DS3685Methane (CH4) Low Range0 - 5%
DS3708Carbon Dioxide (CO2) High Range0 - 20%
0 - 100%
DS3708Carbon Dioxide (CO2) Low Range0 - 5000ppm
0 - 1% - 5%
DS3707Propane (C3H8)0 - 100%
0 - 2.1%

IRNET-P 20mm Low Power
ATEX certified and SIL2 approved NDIR sensor for CO2 or HC detection

IRNET-P 20mm
Low Power
Part NumberGasRangeCerts
DS3700Methane (CH4) High Range0 - 100% ATEX
SIL2
(TÜV approved)
DS3696Methane (CH4) Low Range0 - 5%
DS3699Carbon Dioxide (CO2) High Range0 - 20%
0 - 100%
DS3698Carbon Dioxide (CO2) Low Range0 - 5000ppm
0 - 1% - 5%
DS3697Propane (C3H8)0 - 100%
0 - 2.1%

IRNEX-P 20mm
ATEX & IECEx certified and SIL2 approved NDIR sensor for CO2 or HC detection

IRNEX-P 20mmPart NumberGasRangeCerts
DS3695Methane (CH4) High Range0 - 100%ATEX
IECEx
SIL2
(TÜV approved)
DS3691Methane (CH4) Low Range0 - 5%
DS3694Carbon Dioxide (CO2) High Range0 - 20%
0 - 100%
DS3693Carbon Dioxide (CO2) Low Range0 - 5000ppm
0 - 1% - 5%
DS3692Propane (C3H8)0 - 100%
0 - 2.1%

IRNEX-P 20mm Low Power
ATEX & IECEx certified and SIL2 approved NDIR sensor for CO2 or HC detection

IRNEX-P 20mm
Low Power
Part NumberGasRangeCerts
DS3705Methane (CH4) High Range0 - 100%ATEX
IECEx
SIL2
(TÜV approved)
DS3701Methane (CH4) Low Range0 - 5%
DS3704Carbon Dioxide (CO2) High Range0 - 20%
0 - 100%
DS3703Carbon Dioxide (CO2) Low Range0 - 5000ppm
0 - 1% - 5%
DS3702Propane (C3H8) Low Power0 - 100%
0 - 2.1%

Advanced NDIR Sensors for SF6 or Refrigerant Gas Detection

A refrigerant is a substance or mixture, usually a fluid, used in a heat pump and refrigeration cycle. Most of the gases in refrigeration plants have adverse environmental effects and could be dangerous for humans. The IR series of infrared gas detection sensors use the technique of NDIR (Non Dispersive Infrared) to monitor the presence of SF6 and refrigerants. This technique is based on the fact that the gas has an unique and well defined light absorption curve in the infrared spectrum that can be used to identify the specific gas.

The gas concentration can be determined by using a suitable infrared source and analyzing the quantity of energy absorbed from the gas inside the optical path. The IREF-P sensors are equipped with electronics and firmware in order to provide an output that is linearized and temperature compensated.
The output is analogue voltage type [0.4 V-2 V] dc (other voltages are available on request).

IREF 32mm – Advanced NDIR sensor for SF6 or refrigerants detection

IREF 32mmPart NumberRangePart NumberRange
SF60 - 1000ppm
0 - 2000ppm
R-407a0 - 2000ppm
Ethylene (C2H4)0 - 100% LELR-407F
R-1234yf0 - 1000ppm
0 - 2000ppm
R-410A
R-1234ze0 - 2000ppmR-417A
R-125R-448A
R-134aR-449A
R-32R-452A
R-404aR-507A

IREF – A (Aspiration Version)

IREF – A (Aspiration Version) has built-in gas inlets (for 4mm or 6 mm tubing)
Standard sensor size 32mm
Linearized voltage output
Micro technology based (MEMS) IR source

IREF - A
(Aspiration Version)
Part NumberRange
SF60-1000ppm
0-2000ppm

NDIR Sensor Accessories

IRNET EVALUATION KIT

IR Evaluation KitIR sensor evaluation board with USB cable and PC software.
Sensor’s parameters and gas concentration can be seen in real time and logged in a .txt file. Available for either Negative or Positive pinout sensors.

The “Irnet Parameters” PC software included in the evaluation kit is compatible with all NET NDIR sensors.

 

ASPIRATION CAP

Aspiration CapUseful for testing samples, or in any application where the gas needs to be driven through the sensor. Available for 20mm and 32mm sensors.
Gas inlets can be on top or in the side of the cap.

Heads Ready To Use for NDIR, Electrochemical Sensors

Heads ready for to use for NDIR, Electrochemical SensorsNET2X
NETC2
NET3X
NETC3
NETC3/PL
CYBER HEADS
HEAD Accessories

 

Point Open Path

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