Cảm Biến Áp Suất WIKA A2G-50 - Differential Pressure Transducer For Ventilation And Air-conditioning

  • Measuring element
    • Variant 1, Variant 2, Variant 3: Piezo measuring cell
  • Measuring range
    • Variant 1
      • 0 … 2,500 Pa
      • 0 … 2,000 Pa
      • 0 … 1,500 Pa
      • 0 … 1,000 Pa
      • 0 … 500 Pa
      • 0 … 250 Pa
      • 0 … 100 Pa
      • -100 … +100 Pa
    • Variant 2
      • 0 … 7,000 Pa
      • 0 … 5,000 Pa
      • 0 … 4,000 Pa
      • 0 … 3,000 Pa
      • 0 … 2,500 Pa
      • 0 … 2,000 Pa
      • 0 … 1,500 Pa
      • 0 … 1,000 Pa
    • Variant 3
      • -250 ... +250 Pa
      • -100 ... +100 Pa
      • -50 ... +50 Pa
      • -25 ... +25 Pa
      • 0 ... 250 Pa
      • 0 ... 100 Pa
      • 0 ... 50 Pa
      • 0 ... 25 Pa
  • Accuracy ±1.5 % +1 Pa (of measured pressure)
  • Units (adjustable in the menu)
    • Air flow: m3/h, m3/s, l/s, cfm
    • Differential pressure: Pa, kPa, mbar, inWC, mmWC
  • Process connection Connecting nozzle (ABS), lower mount, for hoses with inner diameter 4 or 6 mm
  • Case Plastic (ABS)
  • Output signal DC 0 … 10 V (3-wire) or 4 … 20 mA (3-wire)
  • Power supply Ub AC 24 V or DC 24 V ±10 %
  • Electrical connection
    • Cable gland M16
    • Screw terminals max. 1.5 mm2
  • Current consumption < 1.0 W (DC 0 … 10 V), < 1.2 W (4 … 20 mA), < 1.3 W (Modbus®)
  • Permissible temperatures
    • Ambient temperature: -20 … +70 °C
    • Storage temperature: -50 … +70 °C
    • Medium temperature: -10 … +50 °C
  • Ingress protection IP54
  • Weight 150 g

Modbus® version (option)

  • Protocol Modbus® via serial interface
  • Transfer mode RTU
  • Interface RS-485
  • Byte format
    • (11 bits) in RTU mode Coding system: 8 bits binary
    • Bits per byte:
    • - 1 Start bit
    • - 8 data bits, lowest-order bit is sent first
    • - 1 bit for parity
    • - 1 stop bit
  • Baud rate 9,600, 19,200, 38,400 - adjustable in the configuration
  • Modbus® addresses 1 … 247 addresses - adjustable in the configuration

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