PMD330 Differential Pressure Transmitter

Features:

• Silicon chips on differential pressure module of MEMS integration technology
• Offset function / UI software
• Low-pressure monitoring, high pressure resistance
• RS-485 communication interface(Optional), Modbus RTU protocol
• Physical unit switch(User Interface)：mbar / Pa / hPa / kPa / mmH₂O / mmWS / inH₂O / mmHgSquare root function

Application:

• Monitor differential pressure of cleanroom
• Hospital
• Air duct
• Filter environment and monitor air flow

Technical Properties:

• Input type: Piezoelectric differential pressure module
• Measuring range: ±50 ... ±10000 pa
• Output: 4 ... 20 mA / 0 ... 10 V / RS-485
• Signal connection: 3-wire
• Load resistance (Current output): 4 ... 20 mA ＜ 500 Ω；0 ... 10 V≧1 KΩ
• Response 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
• Measuring medium: Air
• Operating temperature: 0 ... 50°C
• Operating humidity: 0 ... 95%(Non-condensing)
• Storage temperature: -20 ... +60°C
• Accuracy (at 25°C)
• Accuracy: ±2.0% of F.S
• Temperature influence: ±1.75%(5 ... 55°C)
• Power supply: AC 24 V ±10% / DC 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 )
• Installation: Indoor
• IP rating: IP65
• Electrical protection: ■ Reverse polarity ■ Over-voltage ■ 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: CE
• Housing: PC fire-proof class(PC-110)(UL94V-2)
• Weight: Display：152g；Non-display：127g