Common bimetallic thermometer tail long how to choose?

Bimetallic thermometer is a common measuring instrument, ordinary bimetallic thermometer is as follows: model: A300C - 1 ( WSS3B825150) Type: hot shell bimetallic thermometer structure: universal type cover circle: flange type, tray type panel material: stainless steel SS304 tooth head: 1/2 & quot; NPT other optional surface diameter: 80 mm heat pipe diameter: 6. 35 mm heat pipe length: 150 mm ( 50 - Optional) around 2000 mm. Temperature range: 0 - 150 c F ( Can be customized) Accuracy: & plusmn; 1. Table: 5% glass as we know, double metal thermometer temperature measuring method is to heat tubes inserted into the measured medium, then the bimetallic thermometer tail long how should choose? This depends on the situation of the actual installation environment specific analysis. In line with the bimetallic thermometer, usually in order to use convenient, we will install a base of temperature measurement in the pipeline, used to fixed bimetallic thermometer, and usually the center of the pipe temperature close to the real value. So the length of the heat pipe is not even the teeth ( The tail length) Should be the height of the base and the radius of pipeline.