Pyrometer

for the production of thin glass

Raytek GmbH

Raytek adds a model for use in the production of thin glass to its Marathon pyrometer series. The MMG7 sensor measures infrared radiation at a wavelength of 7.9μm. The measurement spectrum has been precisely adjusted to the reflecting medium and to the 300 to 900°C measured temperature range. At shorter wavelengths, background radiation could distort the results, while surface reflection is too strong in the longer-wave area. The point sensor has an outstanding 100:1 resolution, and achieves a precision of ± 1% and a repeatability of ± 0.5% or ± 0.5°C. With a response time of just 120ms, the device delivers reliable data even in very fast processes.

The Marathon series covers a temperature range from -40 to 2,250°C. The series satisfies exacting requirements in terms of precision, reliability, flexibility, and ruggedness. The smallest measurement spot size is 1.1mm. The pyrometers become operational extremely quickly: the shortest response time is 20ms. The measuring devices feature simultaneous analog and digital outputs. They can be integrated into automation networks via an RS485 interface. The devices are equipped with a through-the-lens sight and optionally with video or laser sighting.

Accessories for the IP65 instruments include an air-purge unit or a ThermoJacket protective casing with integrated air-purge unit and cooling for use in ambient temperatures of up to 315°C.