Raytek has expanded the capabilities of its MI Series of digital infrared temperature sensors. The family can achieve up to 22:1 optical resolution and withstand ambient temperatures up to 180°C without any cooling. This allows accurate measurement of very small spot sizes in confined spaces and difficult ambient conditions. The Raytek MI is a two-piece infrared temperature measurement system with a miniature sensing head and separate electronics, covering a temperature range from -40 to +600°C. The sensor is small enough (14 mm diameter, 28 mm length) to be installed just about anywhere, yet it performs as well as much larger systems. The sensor is housed in a rugged, stainless steel enclosure with IP65 rating, to ensure long-term performance, even in harsh industrial environments. The MI electronics offers many signal processing features including emissivity, sample and hold, peak hold, valley hold, and averaging function, all of which are adjustable on a 5-digit LCD user interface.
The MI can be seamlessly integrated into existing control equipment or OEM systems. Raytek MI Series sensors include an optional RS485 interface, which allows up to 32 sensors to be networked in a multidrop configuration. Raytek DataTemp software enables remote sensor control and data collection via a standard RS232 communication interface. A choice of models, optical resolutions, ambient temperature ranges, rugged industrial cables and accessories makes the MI the useful applications in thermoforming and drying processes, paper mills, printing, paint booths, food and tobacco processing, and many more.
The devices have rugged industrial head cable made from silicone and halogen free materials and resistant to oil, bases, and acids (MID/MIC). They offer a 1% accuracy across broad temperature range. Outputs are 0/4 to 20 mA, 0 to 5 V, J or K and the sensing heads are interchangeable. They are adjustable for emissivity, transmissivity, and offer peak hold, valley hold and averaging. Display is via a 5-digit backlit LCD user interface. Accessories are available for mounting and air purging and the standard interface provided is RS232, with RS485 optional.
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