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
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 32mm | Part Number | Gas | Range | Certs |
|---|---|---|---|---|
 | DS3706 | Methane (CH4) | 0 - 100% 0 - 5% | ATEX SIL2 (TÜV approved) |
| DS3707 | Propane (C3H8) | 0 - 100% 0 - 2.1% |
||
| DS3708 | Carbon Dioxide (CO2) | 0 - 5000ppm 0 - 1%, 5% |
IRNET-P 20mm
ATEX certified and SIL2 approved NDIR sensor for CO2 or HC detection
IRNET-P 20mm Part Number Gas Range Certs
DS3689 Methane (CH4) High Range 0 - 100% ATEX
SIL2
(TÜV approved)
DS3685 Methane (CH4) Low Range 0 - 5%
DS3708 Carbon Dioxide (CO2) High Range 0 - 20%
0 - 100%
DS3708 Carbon Dioxide (CO2) Low Range 0 - 5000ppm
0 - 1% - 5%
DS3707 Propane (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 PowerPart Number Gas Range Certs
DS3700 Methane (CH4) High Range 0 - 100% ATEX
SIL2
(TÜV approved)
DS3696 Methane (CH4) Low Range 0 - 5%
DS3699 Carbon Dioxide (CO2) High Range 0 - 20%
0 - 100%
DS3698 Carbon Dioxide (CO2) Low Range 0 - 5000ppm
0 - 1% - 5%
DS3697 Propane (C3H8) 0 - 100%
0 - 2.1%
IRNEX-P 20mm
ATEX & IECEx certified and SIL2 approved NDIR sensor for CO2 or HC detection
IRNEX-P 20mm Part Number Gas Range Certs
DS3695 Methane (CH4) High Range 0 - 100% ATEX
IECEx
SIL2
(TÜV approved)
DS3691 Methane (CH4) Low Range 0 - 5%
DS3694 Carbon Dioxide (CO2) High Range 0 - 20%
0 - 100%
DS3693 Carbon Dioxide (CO2) Low Range 0 - 5000ppm
0 - 1% - 5%
DS3692 Propane (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 PowerPart Number Gas Range Certs
DS3705 Methane (CH4) High Range 0 - 100% ATEX
IECEx
SIL2
(TÜV approved)
DS3701 Methane (CH4) Low Range 0 - 5%
DS3704 Carbon Dioxide (CO2) High Range 0 - 20%
0 - 100%
DS3703 Carbon Dioxide (CO2) Low Range 0 - 5000ppm
0 - 1% - 5%
DS3702 Propane (C3H8) Low Power 0 - 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 32mm Part Number Range Part Number Range
SF6 0 - 1000ppm
0 - 2000ppmR-407a 0 - 2000ppm
Ethylene (C2H4) 0 - 100% LEL R-407F
R-1234yf 0 - 1000ppm
0 - 2000ppmR-410A
R-1234ze 0 - 2000ppm R-417A
R-125 R-448A
R-134a R-449A
R-32 R-452A
R-404a R-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 Number Range
SF6 0-1000ppm
0-2000ppm
NDIR Sensor Accessories
IRNET EVALUATION KIT
IR 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
Useful 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
NET2X
NETC2
NET3X
NETC3
NETC3/PL
CYBER HEADS
HEAD Accessories