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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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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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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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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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A 1180 - CO2 probe
CO2 probe is used for carbon dioxide measuring in crowded places, such as schools, hospitals, hotels, universities and industry. It should be plugged to Multinorm instrument
MI 6201.
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The Vaisala CARBOCAP® Carbon Dioxide Probe GMP343 is a compact field instrument designed for soil respiration measurements, other ecological measurements and various custom applications.
The metal-cased GMP343 operates in harsh conditions: in temperatures -40...+60 °C (-40...+140 °F) and humidity 0...100 %RH. The GMP343 weighs less than 0.4 kg and consumes under 1 W of power. The probe uses the unique Vaisala CARBOCAP® silicon-based infrared sensor.
The diffusion-aspirated design eliminates the need for sampling systems and pumps. In soil respiration box measurements this design also eliminates errors caused by pressure differences often present in pump-aspirated measurement systems. The GMP343 is very stable, with 6 hour drift less than 1 ppm outdoors, and has as a short warm-up time.
The GMP343 can output numerically filtered or raw measurement data. Additional features include heated optics, compensation possibilities for temperature, relative humidity and pressure, and built-in self-diagnostics. In addition to the diffusion-aspirated version, the GMP343 is available as a flow-through version. The GMP343 can be powered and used with the portable MI70 indicator for convenient field measurement.
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The GMT220 transmitter series is designed for a wide range of industrial carbon dioxide applications including greenhouses, fruit storages, safety alerts and demand-controlled ventilation in mushroom farms, livestock husbandry and parking garages.
The GMT220 industrial transmitters measure carbon dioxide in harsh and humid environments. The housing is dust and waterproof to IP65/NEMA4. The materials have been chosen for extended corrosion resistance.
The GMT220 transmitters are easy to use and install. The transmitters have a modular structure which includes a separate mounting plate for easy installation.
Interchangeable probes facilitate field maintenance. The probes can simply be replaced with newly calibrated ones, or with separate probes that are only used as a reference for calibration checking. This minimizes downtime and eliminates the need for expensive calibration equipment.
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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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Co2 incubators with hot air sterilization
BINDER CB series:
Precision equipment for cell cultivation of the future. It has a drift-free infrared CO2 measuring system to ensure stable pH values, condensation-free Permadry™ interior chamber with integrated shelf supports, easy to clean, where the surface area is kept to a minimum in order to reduce potential sites for germs to establish; an effective sterilization program that operates at 180 °C in compliance with standards, for cultivation without any contamination. All of these features along with the absolutely precise temperature accuracy, which you have come to expect from us.
Find out more: www.hot-air-sterilization.com |
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The Memmert Carbon dioxide incubators create absolutely reliable environmental conditions for organic loads. Your decision criteria: 3 model sizes (108l, 153l and 246l); State-of-the-art control technology based on the P performance class for all models; Humidity limit control integrated as standard for all models (active humidity control system at extra charge); Double doors standard for all models: Prevention of contamination and drops in temperature, with at the same time an optimal view of the sensitive load through wide-area interior glass doors; For all models, the working chamber, including the ventilation system, the water trays and all sensors, can be sterilised in a 4-hr programme at 160 °C using the standard STERICard.
For the INCO 2, the tried and tested Memmert heating concept was again perfected: heating the working chamber from all six sides, along with the electronic humidity limit control, is decisive in preventing condensation from forming in the working chamber. An aluminium thermal conduction layer supports the optimal temperature uniformity, and serves as a heat accumulator if there is a temporary power failure. The turbulence-free interior ventilation ensures a constant and uniform atmosphere.
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