• PHM33 Industrial Differential Pressure Transmitter
  • PHM33 Industrial Differential Pressure Transmitter

PHM33 Industrial Differential Pressure Transmitter

Range:0 ... 250 pa
Input:Thermal differential pressure module​
Output:0 ... 20 mA / 4 ... 20 mA / 0 ... 1 V / 0 ... 5 V /1 ... 5 V / 2 ... 10 V / 0 ... 10 V​
Accuracy:± 0.5 % of F.S.
Display:Optional
Model : PHM33

● Option RS-485 communication interface, Modbus RTU protocol
Physical switch:mbar / Pa / hPa / kPa / mmH2O / mmWS / inH2O / mmHg
● Square root function

The eYc PHM33 differential pressure transmitter is designed on the MEMS hot wire anemometer architecture, which has very good zero point stability and small differential pressure detection capability, high pressure resistance. The transmitter uses the pressure difference to pass a very small amount of gas through the air flow channel of the sensor body. Combined with the integrated circuit to convert into a differential pressure signal.


Input

Input type
Thermal differential pressure module
Measuring range
0 ... 250 pa
Output
0 ... 20 mA / 4 ... 20 mA / 0 ... 1 V
0 ... 5 V /1 ... 5 V / 2 ... 10 V / 0 ... 10 V

Output

Signal connection
3-wire
ModBus
RS-485
Load resistance(Current output)
4 ... 20 mA<500 Ω / 0 ... 10 V≧10 KΩ
Response time(t 63)
≦2 ms
Display type
LCD Module with back light,
double line character
Display range(As unit is Pa)
V=Air velocity(at 25°C)
Q=Air quantity(with eYc AFMT)
Height of character
5.56 mm

Environment

Medium
Air
Environment temperature
-20 ... +80°C(Non-display)
0 ... +50°C(Display)
Environment humidity
97%RH(Non-condensing)
Storage temperature
-40 ... +80°C

Accuracy

Accuracy
±0.5% F.S.
Temperature influence
±1.75%(-20°C ... 80°C)
Temperature compensation
0 ... +70°C

Electrical

Power supply
DC 8 ... 35 V / AC 12 ... 30 V
Current consumption
DC 8 V: ≦120 mA(Display)
≦100 mA(Non-display)
DC 24 V: ≦45 mA(Display)
≦40 mA(Non-display)
AC 12 V: ≦140 mA(Display)
≦120 mA(Non-display)
AC 24 V: ≦90 mA(Display)
≦80 mA(Non-display)
Overvoltage protection
≦DC 40 V
Electrical connection
M12 connector

Installation

Installation
Wall

Protection

IP rating
IP65(Cable);IP67(M12)
Electrical protection
■ Polarity protection
■ Over-voltage
■ Short circuit
Pressure resistance
2 bar
Burst pressure
5 bar

Certification

Certification
CE

Material

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

*Please make sure the product and the device which connect with RS-485 are on common ground, avoid damaged product.

The specifications contained herein are subject to change without notice and any user of said specifications should verify from the manufacturer that the specifications are currently in effect. Otherwise, the manufacturer assumes no responsibility for the use of specifications which may have been changed and are no longer in effect.
Exhaust emission / Environmental engineering / Air duct / Filter / Monitor differential pressure and environment air flow