IR thermometer system

Ircon has introduced an enhanced version of its Modline 5R infrared thermometer with advanced signal detection and attenuation alarming capabilities. The Modline 5 Series 5R ratio sensors are designed for non-contact, infrared temperature measurement applications involving harsh industrial environments.

The Ircon Modline 5 Series 5R ratio sensors utilise a dual detector assembly that measures temperature by comparing infrared radiation levels in two wavelength bands (0.85 to 1.05 microns and 1.0 to 1.1 microns). Because the sensors measure the ratio of radiation intensities at two wavelengths rather than the absolute intensity of radiation at a single wavelength, they are almost immune to error caused by loss of signal. Small targets that do not fill the field of view and partial obstructions from bursts of steam, dust and solid objects in their sight path can be tolerated.

The Modline 5 Series also provides an attenuation alarming capability that operates independently from the optional dirty window detector and is based on the Raytek signal attenuation measurement algorithm, allowing users to adjust the alarm sensitivity level. By measuring the attenuation, the sensor can provide a notification alarm when attenuation levels exceed a user-defined setpoint limit.

Attenuation alarm settings are configurable from 5 to 95%, from either the back panel of the sensing head or from the Ircon Modview program. When an alarm condition is detected, relay outputs provide notification to external process control instrumentation.