Knowledge
Welcome to the SJ Gauge Knowledge Center, featuring technical articles and application insights on pressure gauges, thermometers, diaphragm seals, smart transmitters, and industrial measurement instruments.
From selection guides and installation tips to real-world application experiences, we help improve measurement stability, equipment reliability, and overall process efficiency.
Why Is Your Industrial Thermometer Slow to Respond? 5 Causes and Solutions
When equipment heats up, the thermometer pointer may take time to follow. During cooling, the reading may also remain high for a while.
Industrial Thermometer Reading Inaccurate? Check Insertion Depth and Installation Position
Industrial thermometer readings can vary because of insertion depth, installation position, response time, thermowell effects, or calibration drift.
Types of Industrial Thermometers and How to Choose the Right One
There are many different types of thermometers for industrial applications, with different working principles and uses.
What is a glass thermometer? How should you choose one? Learn 5 key facts about glass thermometers
Thinking about buying a glass thermometer but not sure how to choose?With the following 5 quick tips, SJ Gauge helps you gain a deeper understanding of glass thermometers in just five minutes.
What is a temperature probe? What are the differences in wiring between thermocouples and RTDs? How should you choose among K, N, S, E, and J types?
It is common practice to refer to both thermocouples and resistance temperature detectors (RTDs) as temperature sensors, but in fact they are two different things.
Dial Thermometer Selection Principles: Six Key Points for Purchasing Dial Thermometers!
How do you choose a thermometer?If your application requires accurate and stable temperature measurement while ensuring the safety of both equipment and operators, selecting the right dial thermometer is essential.
Why are thermometers often inaccurate? What causes errors in temperature measurement?
Temperature measurement is critical in many processes, such as determining whether a reaction is complete and ensuring product quality.
The Difference Between Bimetal and Gas Expansion Thermometers?
There are many types of industrial thermometers. Among them, the common types are bimetallic and gas expansion thermometers.
The Accuracy Class and Limits of Error of Dial Thermometers
The accuracy of dial thermometers is crucial in industrial processes and decision-making.