DIFFERENTIAL PRESSURE (DP) MEASUREMENT – AN ESSENTIAL INSTRUMENTATION CONCEPT Differential Pressure measurement is one of the most widely used techniques in process industries for measuring flow, level, filter condition, and pressure differences. What is Differential Pressure? It is the difference between two pressure points (High Pressure and Low Pressure) measured by a DP Transmitter. Common Applications: Flow Measurement using Orifice Plates Tank Level Measurement Filter Monitoring Pump & Compressor Performance Monitoring Furnace Draft Measurement Understanding the 5-Valve Manifold is equally important: • Isolation Valves – Isolate the transmitter from the process • Equalizing Valve – Equalizes HP and LP sides during maintenance • Vent Valves – Used for venting and calibration activities A proper understanding of DP transmitters and manifold operation is essential for every Instrumentation & Control Engineer. Save this infographic for future reference and share it with fellow engineers and students. Post navigation Why does a 4–20 mA signal start from 4 mA instead of 0 mA?
