PMD330 Differential Pressure Transmitter (Indoor)
Model :
PMD330
Features : Suitable for hospital and clean room; Wide measuring range
Measuring element : Piezoresistive diff. pressure sensor, no flow-through
Measuring range：±50 ... ±10000 pa
Output : 4 ... 20 mA / 0 ... 10 V / RS-485
Accuracy : ±2.0% F.S.
IP rating : IP65
Measuring element : Piezoresistive diff. pressure sensor, no flow-through
Measuring range：±50 ... ±10000 pa
Output : 4 ... 20 mA / 0 ... 10 V / RS-485
Accuracy : ±2.0% F.S.
IP rating : IP65
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Features● Uses piezoresistive differential pressure sensor
● No flow-through structure, pressure ports are not interconnected
● Differential pressure measurement range of ±50 ... ±10,000 Pa
● Compact and easy to install
● Includes square root function for converting into air velocity
● Provides analog output, optional RS-485 communication function
● DIP switch to adjust range and square root function
The eyc-tech PMD330 differential pressure transmitter (Indoor) is designed for indoor environmental monitoring. It uses a piezoresistive differential pressure sensor with a no flow through structure. The built-in square root function is used for converting into air velocity, and it provides flexible output options to meet the needs of different scenarios. Users can easily configure it using the DIP switch, making it an ideal choice for various differential pressure measurement applications.
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ApplicationsEnvironmental monitoring (HVAC, clean rooms, hospitals) / Differential pressure monitoring (air ducts, filters) / Airflow monitoring
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Specification
Measurement
Measuring element
Piezoresistive diff. pressure sensor, no flow-through
Measuring range
±50 ... ±10000 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
Accuracy
±2.0% of F.S.
Temperature influence
±1.75%
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
±50 ... ±500 pa : 0.25 bar
±1000 ... ±10000 pa : 0.5 barBurst pressure
±50 ... ±2500 pa : 0.75 bar
±5000 ... ±10000 pa : 1.25 barCertification
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.