• 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 • Compact and easy to install • Includes square root function for converting measurement into air velocity • Provides analog output, optional RS-485 communication function • DIP switch to adjust range and square root function The eyc-tech PMM330 differential pressure transmitter is designed for small differential pressures and low air velocities. 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 at low air velocities. The built-in square root function is used for converting measurement in to air velocity, and it provides flexible output options, making it an ideal choice for various differential pressure measurement applications. Environmental monitoring (Clean rooms, HVAC) / Differential pressure monitoring (Air ducts, filters) / Airflow monitoring

Measuring element Hot-wire type diff. pressure sensor, flow-through Power supply DC 24 V ± 10 % & AC 24 V ± 10 % Measuring range ±50 ... ±1500 Pa Current consumption DC 24 V : =45 mA (Display) / =40 mA (Non-display) AC 24 V : =95 mA (Display) / =90 mA (Non-display) Overvoltage protection =DC 40 V 4 ... 20 mA / 0 ... 10 V / RS-485 Electrical connection M type (M12 - 4 pin connector ) / (M12 - 5 pin connector ) Signal connection 3-wire N type ( M16 plastic cable gland) *M type with 2 m cable Installation Indoor wall type Display type LCD module with back light, double line character Display range...

| Pressure Unit Conversion Table | Unit Power supply Power supply M12x1Thread outer thread (M12 Connector) M16 plastic cable gland - 3P Terminal Power supply M16 plastic cable gland - 5P Terminal *Please make sure the product and the device which connect with RS-485 are on common gr

1.DIP switch active / Deactivate 1.DIP switch active / Deactivate : Set the DIP switch as On / Off STATUS 3~4.Switch measuring range : Upon ordering code(Unit : Pa)(Note:1) DIP switch 3 6.Linear / Square root, output switching 6.Linear / Square root, output switching STATUS (Other unit : Please reference pressure unit conversion table) ※Note 1 : If the user switches the measuring range by dip switch, the accuracy only for reference. | Ordering Guide | Installation Electrical connection N : Plastic cable gland M : M12 connector ( 4 PIN or 5 PIN ) *M type with 2 m cable | Additional Option Test...