TRJ-(B/Z) calibration device for heat meters is new generation calibration device developed and manufactured by HanChang, for which an application for national practical innovation patent was submitted with pertaining technology reaching globally advanced technology forefront of similar devices. This device meets the requirements set forth in the People's Republic of China National Metrological Verification Regulation's JJG225-2001 Thermal Energy Table and the People's Republic of China Urban Construction Industry Standard's CJ128-2007 Thermal Energy Table.

This device is applicable to design appraisement, sample testing, shop calibration, initial calibration, periodic calibration and in-service calibration by metering calibration agency, heat meter manufacturer, heat supply enterprise.

With leading-edge design, rational structure, excellent workmanship, new material and superior imported parts, this device realizes simultaneous calibration of 10 heat meters in the true sense. Integrating Standard Meter Method and Metering Method, this device is featured of advanced function, high automation degree, high reliability, consistency and self-calibration.