A Guide to Temperature Sensors and Thermowells（一个温度传感器和热电偶套管的指南）.PDF

A Guide to Temperature Sensors and Thermowells for STT 3000 Smart Temperature Transmitters and SMV 3000 Smart Multivariable Transmitters 34-44-29-01 12/97 Industrial Automation and Control 16404 N. Black Canyon Hwy., Phoenix, AZ 85023 Printed in U.S.A. Copyright 1997 - Honeywell, Inc. Contents Introduction 2 How to Specify a Thermal Probe 2 Model Selection Guide: Probes 15 Rigid RTD Probes Rigid Thermocouple Probes Spring-Loaded RTD Probes Spring-Loaded Thermocouple Probes Model Selection Guide: Thermowells 24 1 Introduction This guide is intended to lead you through the proper specification of thermal probes and thermowell assemblies. Since we couldn’t include all of the possible variations, the information in the document is intended to cover the most commonly used probes and thermowells. If you need assistance with the specification of a probe or well, or you want a type of probe or thermowell not included in this document, a Honeywell representative can assist you. How to Specify a Thermal Probe NOTE: 1. Always specify a spring-loaded probe if a thermowell is required for the application. 2. Rigid probes may be inserted directly, without a thermowell. 2 How