Bimetal thermometers can be divided into axial type (the shell and the protective tube are in the same axial direction), radial type (the shell and the protective tube are connected vertically) and universal type (soft connection) according to the connection mode between the instrument shell and the protective tube.

Accuracy grade: 1.0 grade, 1.5 grade

The nominal diameter of the shell, the measuring range, the division value, the diameter of the protective tube, the insertion length and the installation thread are as specified in the table

The time constant of the bimetallic thermometer is not more than 30 seconds for the diameter of the protective tube of Φ6; it is not more than 60 seconds for the diameter of Φ8 and Φ10

The material of the protective tube of the bimetallic thermometer is stainless steel, and the nominal pressure it can withstand is 6.4MPa

Electric contact bimetallic thermometer, contact maximum voltage 380V, working current 100mA (non-inductive load), working voltage recommended 36V or 24V