Inline infrared temperature sensors measure up to 1450°C

14 November 2011

A new range of non-contact, infrared temperature sensors are said to be able to accurately measure the temperature of flame-heated workpieces inside industrial furnaces and ovens, as well as CO2 and CO flame gases in different types of combustion processes.

The new thermoMETER CTLaserCOMBUSTION, from Micro-Epsilon, is a range of non-contact, inline infrared sensors that can measure target temperatures through flames and temperatures of combustible gases from +200°C up to +1,450°C. There are three models in the thermoMETER CTLaserCOMBUSTION series – the C2, C4 and C6.

The C2, with detector wavelength of 4.24µm, is designed to measure the temperature of flame gases that contain CO2. Typical applications include flame gases in the burning of waste products or garbage, combustion chambers and processes inside chemical reactors.

The C4 is for measuring the temperature of workpieces or objects through flames. The detector wavelength of 3.9µm allows the sensor to ‘see through’ the flame, as at this wavelength the combustion gases are transmissive to the detector. In this way, users can safely monitor the temperature of the workpiece inside a chemical reactor, industrial oven or furnace, or to observe the brick temperature in combustion chambers.

The C6 model, with detector wavelength of 4.64µm, is for measuring the temperature of flame gases that contain carbon monoxide (CO). Application examples include chemical reactors, burning of waste and combustion chambers.

For all temperature measurements between 200°C and 1,450°C, the sensors measure at short wavelengths (3.9µm-4.64µm) minimising temperature measurement errors on surfaces with either low or unknown emissivity. They have a precision double laser sighting system, combined with an optical resolution of 45:1 and with selectable close focus optics, a minimum spot size of 1.6mm.

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