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.
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.
The Accuracy Grade and Tolerance Error of Dial Pressure Gauges
The accuracy of dial pressure gauges is crucial in industrial processes and decision-making!
Simple Steps to Distinguish Gauge Pressure and Absolute Pressure
Do you know the difference between absolute pressure and gauge pressure? What do positive and negative pressures mean?