Williamson Pro 100 and Pro 200 Series multi-wavelength infrared temperature sensors

The Williamson Pro 100 and Pro 200 Series multi-wavelength infrared temperature sensors are suitable for industrial applications where devices such as thermocouples and RTDs would be inaccurate, too slow, or difficult to use - such as dirty windows, smoke, steam, plasma coatings, dust, water spray, partially obstructed fields of view, or small or wandering targets. Example applications include metal forging, casting, milling, finishing and heat treating; thermal reactors; flares; boilers; incinerators; kilns; and glass forming.

Pro 100 and Pro 200 multi-wavelength sensors use ESP algorithms to provide ‘aim-and-read’ capabilities for non-greybody materials (annealed, galvannealed and stainless steel; aluminium; brass; copper; zinc; etc) that are not accurately measured by single- or dual-wavelength sensors because their change in emissivity varies by wavelength. The sensors measure temperatures between 95 and 2500°C. Accuracy is within 2°C or 0.25% of the reading (whichever is greater).

Pro 100 sensors use visual or integrated laser aiming alignment.  Pro 200 sensors use fibre-optic alignment, with an integrated aim light available as an option.

Every Pro 100 and Pro 200 sensor can be used as a stand-alone transmitter with a choice of inputs, outputs and alarms. For more advanced capabilities, remote interface modules, PID controllers and PC software are available. When in the stand-alone mode, the sensor’s local interface is used to display the temperature and adjust sensor settings from a text-based menu. Units are compatible with RS232 and RS485 as well as 4-20 mA and voltage-sensor outputs, which offer a choice of up to five different measured parameters.