Check the conditions of the bimetallic thermometer is what?

All stainless steel thermometer, bimetallic thermometer, also called pointer thermometer, piping, hvac, industrial thermometer thermometer thermometer. Mainly used in industry, petroleum, chemical industry, heating system, hvac system, pipelines, power plants, Marine, etc. When using bimetallic should pay attention to clean up and check, regularly test the measured values. So what is the check the conditions of the bimetallic thermometer? 1. Test equipment. Including standard and form a complete set of equipment. 1) Standard according to the measurement range can be respectively choose second-class standard mercury thermometer, mercury thermometer, copper - standard Copper nickel thermocouple and second-class standard platinum resistance thermometer; 2) Form A complete set of equipment A. Constant temperature trough, technical performance shown in the following table. B。 Elected to use standard copper - Copper nickel thermocouple or choose a second-class standard platinum resistance thermometer for standard, should choose 0. 02 level low voltage dc potentiometer and form a complete set of equipment, or similar accuracy of other electrical testing equipment. C。 Freezing tank D. Reading glass ( 5 to 10 times) E. F reading telescope. 100 v or 500 v megohmmeter 2. Verification environment temperature verification: 15 to 35 ℃, relative humidity & le; 85% used standard and electrical measuring equipment working environment should meet the requirements of its corresponding conditions.