ADJUSTABLE ELECTRON THERMOMETER

摘要

FIELD: measurement technology. SUBSTANCE: adjustable electron thermometer relates to technology of measurement and control of temperature of various technological processes in industry and agriculture where measurement and/or maintenance of temperature within specified limits with high accuracy is required. Thermometer operates both with copper and platinum temperature-sensitive resistors and does not require precision adjustment of resistances of leads coupling temperature-sensitive resistors to thermometer. Digital indication of value and polarity of measured temperature and opto-triac adjustment of current of load increased measurement accuracy. In addition digital indication of value and polarity of measured temperature, contactless adjustment of value load current, full isolation of control circuit of thermometer and network voltage of load make thermometer convenient in handling and reliable in operation. EFFECT: improved handling convenience and operational reliability.