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Miniature Solid State LED NDIR Carbon dioxide sensor
An innovative High Speed, Real Time, Low Cost, Precision gas sensor using Al-In-Sb (Aluminium Indium Antimonde) NDIR LED technology. The base Mid IR solid state technology, developed by QinetiQ and licensed on a sole basis has been incorporated into an advanced CO2 sensor that is suitable for high volume manufacture and is targeted at a number of Carbon Dioxide Sensor applications.
The LED Carbon Dioxide sensor is a fast, low power NDIR sensor.
The sensor is easy to use. The standard model provides a TTL level serial output, with a temperature compensated linearised reading.
With 4 readings per second, and a T90 time <5s, the sensor is fast and can be used to measure rapid changes in gas concentrations.
Leading edge LED technology allows the sensor to run at low power – less than 100mW running at full speed.
No signal processing is required – just plug it in, power it up and read the data. (Other output options are available on request). |
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The Alphasense patented carbon dioxide sensor is a world first in CO2 monitoring:
Requires no power
Operates at room temperature
One sensor measures from 500ppm to 95% CO2
Small size
Low cost
Simple interfacing
Using the potentiometric measuring principle with our patented silver halide solid state electrolyte, this sensor does not have the high power requirement or high price tag of NDIR technology. This sensor is ideal where low cost and low power are critical for CO2 measurement.
This sensor is the result of seven years of research and development, and this work continues. While not as accurate as NDIR, and not suitable for IAQ measurements, this sensor is ideal for safety alarms, combustion gas monitoring and high CO2 process monitoring.
Contact us with your application. Evaluation boards are available. |
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NDIR Carbon Dioxide - Infared Sensors
Alphasense contemporary designed miniature CO2 infra-red sensors are self-contained, plug in sensors with integrated optics contained within standard sized miniature (20.0 mm) gas transducer housings. There are no moving parts within the sensors. An internal temperature sensor manufacturer is included to enable the temperature to be monitored at the detectors, thereby providing the best means of compensating for temperature effects, including ideal gas law corrections.
CO2 Gas Ranges
IR-CO2-A1 Carbon Dioxide 0 to 5,000-ppm
IR-CO2-AH Carbon Dioxide 0 to 5% Volume
IR-CO2-AE Carbon Dioxide 0 to 20% Volume
IR-CO2-AS Carbon Dioxide 0 to 100% Volume |
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Figaro Pre-calibrated Carbon dioxide sensor modules combine Figaro's CO2 sensor TGS4160/ 4161 with a microcomputer and Figaro's proprietary signal processing technique.
With simple user-defined settings, this module generates a control signal for ventilation and/or air conditioning systems. The result is economic, long-lived, and maintenance free air quality control. When compared with traditional CO2 sensor modules using infrared sensors, Figaro's CO2 module is much more cost effective.
CDM4160 - Pre-calibrated CO2 modules
Suitable for indoor ventilation control and CO2 monitoring in factories, agriculture, and automobiles where conditions are more severe than in residential applications. Based on the specific needs of each user, models are available in three sensitivity ranges: 400-4000ppm, 400-8000ppm, and 400-40000ppm.
CDM4161 - Pre-calibrated CO2 module
Suitable for indoor ventilation control in residences and high occupancy buildings. Models with detection ranges of 400-4000ppm or 400-8000ppm are available to meet the specific requirements of your application.
* pre-calibrated
* maintenance-free
* linear voltage output corresponding to CO2 concentration
* control signal
* malfunction signal |
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Novel infrared measuring system for CO2
With an ir sensor (IR sensor) specifically for carbon dioxide.
The infrared measuring system detects the carbon dioxide content of the ambient air fast and precisely. It contains a novel infrared measuring system functioning basically like a conventional two-beam photometer.
However, since material and construction of the sample cell are novel, and the measured signals are evaluated and processed according to a new digital algorithm, the infrared measuring system is light-weight, compact, in normal applications maintenance-free and long-term stable but nevertheless affordable.
The infrared measuring system detects the absolute carbon dioxide content of the ambient air (partial pressure), industrial monitors itself constantly and signals malfunctions of its hard and professional software. The whole measuring range is linear. |
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For over 40 years GfG has been specializing in the development and manufacturing of systems for the measurement of explosive and toxic gases, oxygen as well as further parameters in air and water used in communities, chemical industry, fire and civil protection, mining, power supply manufacturers, food processing industry, shipping, steel industry, agriculture and also research institutes and universities.Our range extends from sensors, to the smallest gas measuring device in the world, microprocessor driven professional multimeter with data storage to computer supported systems.
At GfG measuring instruments and sensors are developed by a highly-qualified team of engineers and scientists. A special focus is the development of sensors with the measuring system of IR-absorption, catalytic combustion and thermal conduction.
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The GasAlertMicro 5 IR, is a portable gas monitor that simultaneously professional monitors atmospheric levels of up to five gases including carbon dioxide (CO2), oxygen (O2), hydrogen sulphide (H2S), combustibles (%LEL) and a range of toxic gases. Compact and lightweight, the GasAlertMicro 5 IR activates audible, visual and vibrating alarms in the event of a low, high, TWA or STEL alarm condition.
Utilizing a non-dispersive infrared (NDIR) Co2 sensor, the GasAlertMicro 5 IR offers premium accuracy and reliability. Suitable for personal protection in a wide range of applications, the GasAlertMicro 5 IR can dependably detect CO2 hazards in wineries and breweries, agriculture, food processing or any confined space entry application.
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Series 200ACE Acetaldehyde Professional analyzer
Meets ISBT Method 11 criteria for selective measurement of acetaldehyde in CO2
- Rugged, low cost, low maintenance, turn-key system
- Capable of PC-based control and data logging
- Batch or continuous stream monitoring
- Detector: Flame Ionization Detector (FID)
- Automatic, hands-free calibration, flow setting and analysis
- Detection limits for acetaldehyde of < 30 part-per-billion (ppb)
- Instrument operating temperature: ambient
- Detector temperature: factory set; adjustable
- Professional oven temperature regulation: factory set with professional software controlled conditioning
- Tested against virtually all of the potential alcohol and oxygenate impurities that could be present and determined to be interference-free
- Acetaldehyde is captured by the software system, with results displayed digitally on the instrument's front panel
- On-board software package contained in the Series 200ACE allows complete unattended operation
- Installation: bench or 19" rack
- Power: 115-230 V, 50-60 Hz |
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Series 200AHC Aromatic Hydrocarbon Professional analyzer
Specific detection of benzene within beverage-grade carbon dioxide.
Trace aromatic impurity monitoring is of critical importance to carbon dioxide manufacturers and the carbonated beverage industry. The Series 200 AHC meets all ISBT Method 12.0 criteria for selective measurement of benzene in carbon dioxide. Continuous stream or batch sampling operations are readily performed.
The Series 200 AHC is specifically designed as a rugged, low cost, low maintenance, simple to operate, turn-key system. No professional cylinder support gases are needed. Calibration and sample introduction are totally automated. A newly designed photo-ionization detector (PID) and proprietary technology are used for the specific measurement of benzene without interference from other potential impurities in beverage-grade carbon dioxide. Detector response is linear over three orders of magnitude. The detectable limit for benzene is 3 ppb, which is far below the ISBT guideline limit of 20 ppb. GOW-MAC’s Series 200 AHC system is also capable of PC-based control and data logging. Full documentation is provided, along with optional customer training and support services.
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Series 200BTEX Industrial gas analyzer
Meets all ISBT Method 12 criteria for selective measurement of BTEX (benzene, toluene, ethyl benzene, o-xylene, m-xylene, and p-xylene) in CO2
- Rugged, low cost, low maintenance, turn-key system
- Features: Auto-Calibration, Auto-Calibration Validation, Process/Manual mode, As Found/As Left function, Sample stream selection, and six 4-20 mA outputs
- Capable of PC-based control and data logging
- Batch or continuous stream monitoring
- Detector: Photo Ionization Detector (PID)
- Automatic, hands-free calibration, flow setting and analysis
- Detection limits for benzene of < 5 ppb
- Instrument operating temperature: ambient
- Detector temperature: factory set; adjustable
- Professional oven temperature: factory set with professional software controlled conditioning
- Tested against virtually all of the potential alcohol and oxygenate impurities that could be present and determined to be interference-free
- Benzene is captured by the software system, with results displayed digitally on the instrument's front panel
- On-board software package contained in the Series 200AHC allows complete unattended operation
- Installation: bench or 19" rack
- Power: 115-230 V, 50-60 Hz |
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Mating GrayWolf's advanced hotwire air velocity sensor technology with the incredible capability of mobile professional computers, gives you access to the most versatile portable air velocity meter ever available.
- Measures Air Velocity and Temperature.
- Calculates basic Volume Flow Rate in real-time.
- Optional professional software modules for Equal Area and Log-Tchebycheff volumetric flow calculation, or for fumehood face velocity measurement.
- Extremely easy to use.
- Simple desktop data analysis and reporting with included WolfSense PC software.
- Accurate for thermal comfort applications (measuring "drafts"), washing room apps (Hepa filters) and Laboratory Fumehood measurements.
- Wide air velocity range for duct air flow and diffuser volumetric flow measurement.
- Optional Differential Pressure, Particle Counts, Relative Humidity and more... |
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Centralized monitoring and traceability of the temperatures
New LABGUARD 2 version 3.7 with alarms in real time and function back up!
AES CHEMUNEX presents version 3.7 of system LABGUARD 2. Already adopted by many laboratories in France and abroad, LABGUARD 2 is an acquisition machine and of monitoring of the temperatures (and other parameters like: relative humidity, differential pressure, CO2, O2, contacts dry...). The transmission of the data in real time by radio of the emitters towards the receiver and the computer avoids any wiring and allows a very simple and fast installation as well as a very great flexibility.
The software, conforms CFR21 leaves 11, presents a total traceability: the data base is made safe and the software delivered with file of validation (service IQ, OQ available). The new version of the software integrates the function "back up": the data are recorded in each module and can thus be recovered in the event of stop or of computer breakdown. The data security is maximum. The emitters can be supplied with industrial battery cell and/or sector.
The software is conceived in a modular way, various optional modules make it possible to meet the needs for each user (mapping, reference of alarms, localization of the apparatuses at fault, remote consultation, interfacing software quality...)
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