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.
● 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.
Applications
Exhaust air treatment / Differential pressure monitoring / Airflow monitoring / Water treatment / Air handling unit flow
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 |
V=Air velocity (at 25°C) |
Digit height |
5.56 mm |
Accuracy |
|
Accuracy |
±1.5% F.S. ±3% M.V. |
Temperature influence |
1% m.v. per 10°C |
Environment |
|
Measuring medium |
Air |
Operating temperature |
-20 ... +80°C (Non-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) |
Overvoltage protection |
≦DC 40 V |
Electrical connection |
M12 connector |
Installation |
|
Installation |
Wall |
Protection |
|
IP rating |
IP65 |
Electrical protection |
■ Over-voltage |
Pressure resistance |
1 bar |
Burst pressure |
3 bar |
Certification |
|
Certification |
CE |
Material |
|
Housing |
Aluminum alloy |
Weight |
Display : 497 g |
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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.