Bullet Sensors & Transducers e-Digest, Vol. 174-175, Issue 7, July 2014: Products News

    (ISSN 1726-5479)

 

 

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CO2 Transmitters with Insensitive Infrared Measurement Principle

 

 

Engerwitzdorf, 14.07.2014 - The new CO2 transmitter series EE850 and EE820 from E+E Elektronik allow highly accurate and reliable measurements of CO2 concentrations up to 10,000 ppm. The applied infrared measurement principle (dual wavelength NDIR* procedure) is particularly insensitive to pollution. The transmitter’s autocalibration function automatically compensates for aging effects.

 

The multi-point CO2 and temperature factory adjustment procedure leads to excellent CO2 measurement accuracy over the entire working temperature range. The measured values are available as either analog current or voltage outputs. An optional kit facilitates easy configuration and adjustment of the transmitters.

 

The EE850 CO2 and temperature transmitter for duct mounting is ideal for applications in building management or process control. A mounting flange enables easy installation of the sensing probe directly into the ventilation duct. The CO2 sensing cell is well protected inside the transmitter. For CO2 measurement, a small amount of air flows through the divided probe, into the transmitter housing, and back into the duct. The temperature sensor is located inside the probe. The EE850 offers an additional option for a passive temperature sensor output with a 2-wire connection.

 

The EE820 CO2 transmitter is designed for particularly demanding applications. The robust, functional housing with a special integrated filter allows for use of the EE820 in polluted environments such as agriculture, stables, incubators, or greenhouses. Excellent temperature compensation even allows for use of the EE820 outdoors.

 

* non-dispersive infrared technology

 

 

About E+E Elektronik

 

E+E Elektronik GmbH, with headquaters in Engerwitzdorf/Austria, belongs to the Dr. Johannes Heidenhain GmbH group. With around 250 employees, E+E develops and manufactures sensors and transmitters for relative humidity, CO2, air velocity and flow as well as humidity calibration systems. The main E+E markets are HVAC, process control and automotive. With an export share of around 97 % E+E has branch offices in China, Germany, France, Italy, Korea and the USA as well as an international dealer network. Aside from operating its own accredited calibration laboratories, E+E Elektronik has been appointed by the Austrian Federal Office for Calibration and Measurement (Bundesamt für Eich- und Vermessungswesen; BEV) as a designated laboratory to supply the national standards for humidity and air velocity.

 

 

 

 

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Contact:

 

Mr. Johannes Fraundorfer,

E+E Elektronik GmbH

Langwiesen 7 A-4209

Engerwitzdorf Austria,

Tel.: +43 (0) 7235 605-0

Fax: +43 (0) 7235 605-8

E-mail: johannes.fraundorfer@epluse.at

Http://www.epluse.com

 

CO2 transmitter series EE850 and EE820

 

 

Digital Sensors and Sensor Sysstems

 

 

 

Handbook of Laboratory Measurements

 

 

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