PMM330 Differential Pressure Transmitter (Indoor)
Feature : Suitable for HVAC and light industry
Measuring element : Hot-wire type diff. pressure sensor, flow-through
Measuring range : ±50 ... ±1500 Pa
Output : 4 ... 20 mA / 0 ... 10 V / RS-485
Accuracy : ±1.0% F.S. ±4% M.V
IP rating : IP65
PMM330 Differential Pressure Transmitter (Indoor)
Feature : Suitable for HVAC and light industry
Measuring element : Hot-wire type diff. pressure sensor, flow-through
Measuring range : ±50 ... ±1500 Pa
Output : 4 ... 20 mA / 0 ... 10 V / RS-485
Accuracy : ±1.0% F.S. ±4% M.V
IP rating : IP65
Features
● 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.
Specification
Measurement | |
Measuring element | Hot-wire type diff. pressure sensor, flow-through |
Measuring range | ±50 ... ±1500 Pa |
Output | |
Output | 4 ... 20 mA / 0 ... 10 V / RS-485 |
Signal connection | 3-wire |
Load resistance | Current output : ≦ 500 Ω |
Response time | t63 ≦ 2 ms |
Display type | LCD Module with back light, double line character |
Display range | Upon request, 2 decimal place (as unit is Pa : 1 decimal place) |
Digit height | 5.56 mm |
Accuracy (at 25°C) | |
Accuracy | ±1.0% F.S. ±4% M.V. |
Temperature influence | 1% m.v. per 10°C |
Environment | |
Measuring medium | Air |
Operating temperature | 0 ... 50°C |
Operating humidity | 0 ... 95%RH (Non-condensing) |
Storage temperature | -20 ... +60°C |
Electrical | |
Power supply | DC 24 V ±10% & AC 24 V ±10% |
Current consumption | DC 24 V : ≦45 mA (Display) / ≦40 mA(Non-display) |
Overvoltage protection | ≦DC 40 V |
Electrical connection | M type ( M12 - 4 PIN connector ) / ( M12 - 5 PIN connector ) |
| *M type with 2 m cable | |
Installation | |
Installation | Indoor wall type |
Protection | |
IP rating | IP65 |
Electrical protection | ■ Over-voltage |
Pressure resistance | 1 bar |
Burst pressure | 3 bar |
Certification | |
Certification | CE |
Material | |
Housing | PC fire-proof class(PC-110)(UL94V-2) |
Weight | Display : 152 g |
Applications
Environmental monitoring (Clean rooms, HVAC) / Differential pressure monitoring (Air ducts, filters) / Airflow monitoring