● 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.
Measurement
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Measuring element
|
Piezoresistive diff. pressure sensor, no flow-through
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Measuring range
|
±50 ... ±10000 pa
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Output
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Output
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4 ... 20 mA / 0 ... 10 V / RS-485
|
Signal connection
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3-wire
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Load resistance
|
Current output : ≦ 500 Ω
Voltage output : ≧10 KΩ
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Response time
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t63 ≦ 2 ms
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Display type
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LCD Module with back light,
double line character
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Display range
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Upon request, 2 decimal place
(as unit is Pa : 1 decimal place)
|
Digit height
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5.56 mm
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Accuracy
|
Accuracy
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±2.0% of F.S.
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Temperature influence
|
±1.75%
|
Environment
|
Measuring medium
|
Air
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Operating temperature
|
0 ... 50°C
|
Operating humidity
|
0 ... 95%RH (Non-condensing)
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Storage temperature
|
-20 ... +60°C
|
Electrical
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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
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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 circuit
|
Pressure resistance
|
±50 ... ±500 pa : 0.25 bar
±1000 ... ±10000 pa : 0.5 bar
|
Burst pressure
|
±50 ... ±2500 pa : 0.75 bar
±5000 ... ±10000 pa : 1.25 bar
|
Certification
|
Certification
|
CE
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Material
|
Housing
|
PC fire-proof class(PC-110)(UL94V-2)
|
Weight
|
Display : 152 g
Non-display : 127 g
|
Environmental monitoring (HVAC, clean rooms, hospitals) / Differential pressure monitoring (air ducts, filters) / Airflow monitoring
Taiwan
