The SBIR Infinity EXLT Series Extended Area Low-Temperature Blackbody Source is designed for applications where temperatures below the 0°C limit of standard blackbodies must be generated. This blackbody system can achieve temperatures as low as -40°C in an uncontrolled lab environment. For applications such as low-background flood mode testing of detectors, the Model EXLT can eliminate the need for expensive and cumbersome temperature chambers or other special provisions to achieve these cold backgrounds. 

A recirculating refrigerated bath cools the blackbody to approximately the desired temperature using a proprietary fluid. Then a sophisticated electronic control system and an array of thermoelectric coolers control the blackbody surface precisely at the desired setpoint. The EXLT Series includes all of the components needed for operation: blackbody, refrigerated bath, temperature controller, cables, and hoses. Operation of the system is straightforward, and maintenance is minimal. 

A key feature is the new iProbe from SBIR. This intelligent temperature sensor is calibrated independently of the blackbody system. To re-calibrate the system you need only exchange the probe with a recently calibrated one. No special equipment is required thus minimizing downtime. Additionally, an optional new ultra-black surface coating –VANTABLACK®S-IR – can be applied to the source plate providing unprecedented emissivity on a flat plate blackbody system. 

The EXLT is a low cost, easy-to-use solution for applications requiring a low temperature blackbody source. 

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