PMM330 Differential Pressure Transmitter


● Uses a hot-wire type differential pressure sensor
● High sensitivity to low differential pressure, low zero-point drift, minimum measurable value down to 1 Pa
● Pressure resistance up to 1 bar, differential pressure measurement range of ±50 ... ±1500 Pa
● Compact and easy to install
● Includes square root function to convert measurement to air velocity
● Provides analog output, RS-485 differential communication function
● DIP switch for adjustable range and square root function
eyc-tech PMM330 differential pressure transmitter is designed for small differential pressures and low air velocity. It uses a hot-wire type differential pressure sensor with excellent zero-point stability and the ability to detect small differential pressures, allowing for precise measurements of low air velocity. The built-in square root function is used to convert the measurement to air velocity and provides flexible output options, making it an ideal choice for various differential pressure measurement applications.

Features: Suitable for HVAC and light industry Measurement Element: Hot-wire differential pressure sensor, flow-through type Measurement Range: ±50 ... ±1500 Pa Output: 4 ... 20 mA / 0 ... 10 V / RS-485 Accuracy: ±1.5% FS ±3% MV IP Rating: IP65 Request for Information


The PMM330 differential pressure transmitter is part of the line of instruments eligible for tax incentives provided by the Budget Law 2025 – 11: the new rules for Transition 5 - "Industry 5.0"

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