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Introduction Resistance measurement is one of the most common troubleshooting methods used by instrumentation and maintenance engineers. By measuring resistance values, engineers can quickly determine whether an instrument component is working properly, such as: RTD temperature sensors (PT100/PT1000) Solenoid valve coils Vibration sensors Instrument cables Sensor insulation conditions However, many field technicians are confused about […]

Summer Instrument Maintenance: Why High Temperature Can Be Just as Dangerous as Freezing Weather When summer arrives, people feel the heat — but industrial instruments often suffer even more. Under continuous sunlight exposure, high ambient temperatures, and frequent thunderstorms, many instrumentation problems that rarely appear in winter can suddenly emerge during the hot season. Many

Do Emergency Shutdown Valves Always Need Fireproof Covers? For emergency shutdown valves (ESD valves), the installation of a fireproof cover is often a topic of debate. Some engineers believe that fireproof covers are mandatory for all ESD valves, while others believe that a spring-return actuator with a fusible plug is sufficient in many applications. So,

Anyone who works with field instrumentation has probably encountered this situation: The impulse line is almost blocked, yet the pressure trend on the DCS still looks stable and the reading appears normal. Then the process condition changes—and the problem suddenly becomes obvious. The actual process pressure has already increased, but the DCS value is still