PHM330 Differential Pressure Transmitter

Features : Suitable for industrial application. High pressure resistance.
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

PHM330 Differential Pressure Transmitter PHM330
PHM330 Differential Pressure Transmitter PHM330

PHM330 Differential Pressure Transmitter

Features : Suitable for industrial application. High pressure resistance.
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
● 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.

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 KΩ
Response time
t63 ≦ 2 ms
Display type
LCD Module with back light, double line character
Display range
V=Air velocity (at 25°C)
Q=Air quantity (with eyc-tech AFMT)
Digit height
5.56 mm

Accuracy

Accuracy
±1.0% F.S. ±4% M.V.
Temperature influence
1% m.v. per 10°C

Environment

Measuring medium
Air
Operating temperature
-20 ... +80°C (Non-display)
0 ... +50°C (Display)
Operating humidity
0 ... 95%RH (Non-condensing)
Storage temperature
-20 ... +80°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
M12 connector

Installation

Installation
Wall

Protection

IP rating
IP65
Electrical protection
■ Over-voltage
■ Reverse polarity
■ Short circuit
Pressure resistance
1 bar
Burst pressure
3 bar

Certification

Certification
CE

Material

Housing
Aluminum alloy
Weight
Display : 497 g
Non-display : 478 g

Applications

Exhaust air treatment / Differential pressure monitoring / Airflow monitoring / Water treatment / Air handling unit flow

Note : Design and specifications are subject to change without notice.
Note : Please make sure the product and the device which connect with RS-485 are on common ground, avoid damaged product.