Temperature Measurement


Teachable infrared temperature sensors

October 2005 Temperature Measurement

Banner Engineering is offering its new T-GAGE temperature sensors. These passive, non-contact temperature-based devices detect objects that are either hotter or colder than the ambient condition and then trigger an output. They are easy to set up because they use Banner's Teach-mode pushbutton programming that requires no potentiometer adjustments.

Joe Dolinsky, Banner's magnetic and temperature sensor product manager says: "Thanks to advances in manufacturing and reduced costs of thermopile components, Banner temperature sensors offer a low-cost, robust solution to what once was an expensive sensing challenge. Banner T-GAGE sensors cost half that of the nearest comparable product.

Applications

T-GAGE sensors are especially useful for monitoring production lines. They operate even if the product is not moving and can sense temperature changes as small as 3° C. The devices are suitable for a wide variety of applications in the process, food production, assembly, packaging, materials handling, and general manufacturing industries.

Applications could include the detection of hot products such as baked goods, metals and bottles - and cold products, including frozen foods, ice and dairy; monitoring process equipment and fixture temperature, packaging, binding and gluing thermal processes; detecting hot parts and verifying ejection; monitoring heated or chilled rollers.

Numerous features make the devices particularly easy to install and use:

* Fast, 25 millisecond response time accommodates production line speeds.

* Small, self-contained package does not require an external controller.

* Set-up is quick and easy using an on-board TEACH pushbutton or remote cable.

* Dynamic TEACH mode allows the sensor to learn two sensing conditions on-the-fly and automatically set the switch point.

* Manual TEACH mode allows the user to program the sensor for two distinct temperature switch points.

* Stainless steel barrel construction and fully encapsulated electronics is rated IP67 for harsh sensing environments.

* Provides a wide temperature sensing range from 0° to 300°C.

* Advanced Monitor software allows for threshold adjustment and realtime information display through a PC.

Specifications

The T-GAGE sensor operates from 10 to 30 V d.c. It features solid-state bipolar outputs: one current sourcing (PNP) and one current sinking (NPN). Output timing options include ON-delay, OFF-delay, retriggerable, one-shot, pulse stretches and more. It is available with a 2 m or 9 m unterminated cable, or 5-pin Euro-Style quick-disconnect option. Lens options include integrated lens for general purpose use, enclosed plastic face for food applications and germanium lens for narrow field of view.



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