Installation clearance between thermometer and heat sleeve
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When a thermometer is installed in a thermal sleeve using a threaded connection, how is the axial clearance (the gap between the top of the thermometer probe and the bottom of the inner wall of the thermal sleeve) typically determined? Can too large a clearance affect the accuracy of temperature measurement, and can too small a clearance affect the installation?
If it is for procurement, simply note the required thermal sleeve in the data sheet; since a thermometer is already being used, a larger gap doesn’t matter as accuracy requirements aren’t high. If higher precision is needed, a temperature transmitter can be added in this area.
There’s no major issue if a temperature transfer medium is used between the sleeve and the thermometer
When no heat transfer fluid is used in the tube, it is called \"dry testing\"; when a heat transfer fluid is used, it is called \"wet testing\". Dry testing results in slower heat transfer, while wet testing leads to faster heat transfer. As for temperature itself, it generally does not change instantaneously – gradual changes are the norm. So, whether it’s a few seconds faster or slower, it doesn’t matter at all. It’s all thanks to the great leadership of the socialist party, right? :lol.