Differential Pressure Transmitter Uses hot-wire type differential pressure sensor High sensitivity at low differential pressure, low zero-point drift, minimum measurable value as low as 1 Pa Pressure resistance up to 1 bar, differential pressure measurement range of ±50 ... ±1500 Pa Aluminum alloy housing, IP65 protection rating Includes square root function for converting into air velocity and airflow, and simultaneous display on the screen Provides analog output with RS-485 communication function DIP switch to adjust range and square root function The eyc-tech PHM330 differential pressure transmitter, equipped with an aluminum alloy housing, is less affected by the external environment, ensuring stable and reliable airflow measurement. Its sensing element is a hot-wire type sensor, providing excellent zero-point stability and the ability to detect low differential pressures, allowing for precise measurements at low air velocities. Exhaust air treatment / Differential pressure monitoring / Airflow monitoring / Water treatment / A

Measuring element Measuring range Hot-wire type diff. pressure sensor, flow-through Load resistance Signal connection Response time Display type Display range Digit height Accuracy Accuracy Temperature influence Measuring medium Operating temperature Operating humidity Storage temperature LCD Module with back light, M12 connector *with 2 m cable Wall type Electrical protection Electrical connection Q=Air quantity (with eyc-tech AFMT) Overvoltage protection Current consumption double line character Power supply ■ Reverse polarity ■ Short circuit 1 bar Pressure resistance Burst pressure Aluminum...

| with the eyc-tech Pitot Tube Principle | eyc-tech PHM330 Differential Pressure Transmitter is built on the structure of thermal mass flow measurement, with eyc-tech AFMT Average Flow Measuring Tube(Pitot tube), based on the flow continuity formula (the law of conservation of mass) and the Bernoulli formula (the law of conservation of energy), the wind speed calculation formula is deduced to achieve an effective and accurate measurement. Flow rate formula V = K Flow formula Δ P = Difference between total pressure and static pressure ρ (Dynamic pressure)(Pa) = Flow density(kg/m3) = Flow coefficient...

P1 25 mm M12x1 Screw thread (Connector) 104 mm 134 mm ※P1 / P2 : Connected to Ø6 PVC / PTFE compressed air pipe Brown Black Gray White Blue *Please make sure the product and the device which connect with RS-485 are on common ground, avoid damaged product. | Ordering Guide | Installation Electrical connection M : M12x1 connector *with 2m cable | Additional Option Test Report | For more detailed information please contact us. ■ ISO 9001 Project Measurand level or range