Bimetallic thermometer use will be affected by what way?

Bimetallic thermometer is also called mechanical thermometer, is a kind of special measure - 50 - 500 cf field temperature instrument. Widely used in petroleum, chemical, hvac, industrial equipment, Marine and other fields. Today we speak of meter bimetallic thermometer when used may be affected by what way. 1. The influence of the installation position. When the normal installation position forward, backward, left, and 90 ℃, change the value of the thermometer should not be greater than the absolute value of a fundamental error. 2. The influence of environment temperature. Thermometer in the specified range of environment temperature, the temperature is 10 ℃ per change, change the value of the thermometer should not be greater than the absolute value of the basic error limits 1/2. 3. The influence of environmental relative humidity. Thermometer should be able to withstand the temperature of 40 ℃ & plusmn; 2 ℃, relative humidity of 91% to 95% ( Electric contact thermometer is 80% to 85%) The humidity test, after 48 h. After test, the value of the thermometer changes should not be greater than the absolute value of the basic error limits 1/2. After understanding the situation, we can better choose and use the bimetallic thermometer.