Low-cost IR thermometers oust thermocouples

A Land Instruments International product story
Edited by the Engineeringtalk editorial team May 27, 2004

A novel range of noncontact thermometers can be permanently substituted for disposable thermocouples without undue cost and technical complexity.

A novel range of noncontact thermometers can be permanently substituted for disposable thermocouples without undue cost and technical complexity.

An extension to Land's MF3 series of infra-red thermometers, the new models have outputs that match the voltage/temperature correlations of Type J and Type K thermocouples so that they can be used without changing the calibration of downstream processing.

They are intended for industrial applications where thermocouples and their attendant disadvantages are still commonplace, including the manufacture of products as diverse as plastics, rubber, timber, paper, textiles, paint, lacquer, liquids and food.

Overall measurement range is 0 to 500C, with an accuracy of +/-1.5% at an ambient 23C, a response time of 300ms and repeatability of +/-1%.

With dimensions of only 18.6mm diameter and 118mm long, the MF3 range is compact in both size and price, offering a good all-round performance with fixed emissivity compensation and a 5:1 field of view suitable for targets with a typical diameter of 60mm at a 300mm sighting distance.

Each MF3 thermometer is housed in a rugged stainless-steel body and supplied complete with a 1m prewired cable for simple connection into existing systems without configuration or technical input from the manufacturer.

Dedicated mountings and accessories include a water-cooled jacket for environments up to 80C and situations where the sides of the thermometer are subject to significant radiated energy.

Find out more about this article. Request a brochure, download technical specifications and request samples here.

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