Temperature Switch Calibration (Step by Step By Procedure )
Following Precautions needs to be taken-
Use appropriate PPE.
Isolate Temperature Switch from process.
Equipment required for Temperature
2.Switch Contact Monitoring Device
Temperature Switch Calibration Procedure
1.Remove temperature sensor from process.
2.Connect test equipment
3.For high Temperature Switch (TSH ),place sensor in a calibrated bath/block test standard at a temperature below the specified trip point and allow to stabilize.
4.For low Temperature Switch (TSL ),place sensor in a calibrated bath/block test standard at a temperature above the specified trip point and allow to stabilize.
5.Slowly increase or decrease temperature to obtain trip point.
6. Slowly decrease or increase temperature to obtain reset point.
7.Repeat "X" times for repeatably