Instrumentation

8 Critical Ways to Prevent Water Ingress and Equipment Failure In many industrial environments—especially in chemical plants, offshore platforms, and high-humidity areas—explosion-proof equipment failure is often not caused by electrical faults, but by something much simpler: 👉 Water ingress Once moisture enters the enclosure, it can lead to: Internal corrosion Short circuits Signal instability Loss […]

In industrial environments with acid-base corrosion, instrumentation gas supply lines (such as compressed air pipelines) are highly susceptible to damage from acid mist, splashes, or volatile gases. This can result in gas leakage, contamination, and disruptions to the normal operation of instruments. Therefore, it is crucial to implement protective measures across various aspects of materials

In the world of instrumentation, thread connections are a fundamental part of installation, maintenance, and repair. From installing pressure gauges to connecting valves and fixing instruments to pipelines, the correct choice and installation of threads directly impact the seal integrity, safety, and longevity of the system. As an instrumentation engineer, mastering commonly used thread specifications

As a vital part of the automation industry, PLC engineers face various challenges during commissioning and troubleshooting in the field. However, due to a lack of experience or simple oversight, engineers often make some reckless decisions that can significantly impact system performance or even cause safety hazards. These “fatal” mistakes can not only prevent smooth

15 Practical Rules Every Instrumentation Engineer Learns on Site In the field of industrial instrumentation, there is a saying many technicians know well: “Three parts theory, seven parts field experience.” You may memorize formulas and understand every detail of instrument principles, but once you arrive at the plant, the real challenge may come from something

In discussions about plant safety, you might hear terms like “alarms, interlocks, and safety valves.” However, true safety assessment goes beyond simply asking, “Do we have these systems?” It involves answering three crucial questions: What potential issues could occur? (Scenario Identification) Is the risk low enough? (Risk Assessment) If not, how reliable do the protection

Key Factors for Thermocouple Selection (Prioritized) Temperature Range (Primary Consideration) The temperature range determines the selection of the thermocouple type. The type should cover 1.2 times the maximum temperature (JB/T 5582-2015): Ultra-Low Temperature (-270 to -40°C): Type T (Copper-Copper Nickel), high precision for low temperatures. Low Temperature (-40 to 400°C): Type T (stable) and Type

An actuator’s dead zone refers to the range of input signals where the actuator does not respond. Only when the input signal reaches a certain threshold does the actuator begin to operate. When the dead zone becomes too significant, it may lead to oscillations in the control system, degrading the system’s performance. In industrial automation

Properly setting alarm values can prevent safety accidents. So, how should we set these alarm values? For example, consider a tank with a level control limit of 80%. What would be the appropriate alarm value? 70%? 75%? Or 78%? To correctly set alarm values, we first need to understand one key concept: response time. The

In a Distributed Control System (DCS), deadband (also known as hysteresis) refers to a specific range configured around an alarm setpoint. Within this range, minor fluctuations of a process variable will not trigger an alarm, even as they approach the alarm limit. The deadband acts as a “no-alarm zone,” effectively preventing the frequent generation of