PMM330 Differential Pressure Transmitter (Indoor)
Model :
PMM330
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 : ±1.5% F.S. ±3% M.V.
IP rating : IP65
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 : ±1.5% F.S. ±3% 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.
-
ApplicationsEnvironmental monitoring (Clean rooms, HVAC) / Differential pressure monitoring (Air ducts, filters) / Airflow monitoring
-
Download
-
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
Voltage output : ≧10 KΩResponse 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
±1.5% F.S. ±3% 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)
AC 24 V : ≦95 mA (Display) / ≦90 mA(Non-display)Overvoltage protection
≦DC 40 V
Electrical connection
M type ( M12 - 4 PIN connector ) / ( M12 - 5 PIN connector )
N type ( M16 plastic cable gland )*M type with 2 m cable
Installation
Installation
Indoor wall type
Protection
IP rating
IP65
Electrical protection
■ Over-voltage
■ Reverse polarity
■ Short circuitPressure resistance
1 bar
Burst pressure
3 bar
Certification
Certification
CE
Material
Housing
PC fire-proof class(PC-110)(UL94V-2)
Weight
Display : 152 g
Non-display : 127 g
Note : Design and specifications are subject to change without notice.
Note : If the product has RS-485 function, to avoid damaging product, please make sure the product and the device which connect with RS-485 are on common ground.