Differential Pressure Sensor - A2G-45

Brand: WIKA Alexander Wiegand SE & Co. KG

The WIKA model A2G-45 differential pressure transducer combines a local differential pressure display, measured value transmission and differential pressure switching in a single instrument and is therefore mainly used in the ventilation and air-conditioning industry.
Features
  • Electrical output signal 0 to 10 V (3-wire)
  • Simple and quick mounting
  • Maintenance-free
  • Maximum operating pressure 20 kPa

Specifications

Accuracy

  • 1.5 % of Full Span

Measuring Range

  • Option 1: -2 to +2 inWC (Factory set) (-0.4 to +0.4 inWC, -1 to +1 inWC, -1.2 to +1.2 inWC Selectable via Jumpers)
  • Option 2: 0 to 10 inWC (Factory set) (0 to 0.4 inWC, 0 to 1 inWC, 0 to 4 inWC Selectable via Jumpers)

Maximum Pressure

  • 100 inWC

Permissible Temperature

  • Ambient: -4° to 158° F
  • Media: 14° to 122° F (23° to 122° F with Automatic Zero Adjustment)

Ingress Protection

  • IP54

Process Connection

  • Copper Alloy, for 1/8” or 1/4” Hose I.D.

Measuring Element

  • Piezo Measuring Cell

Zero Point Adjustment

  • By Pressing the ”Up” and ”Down” Arrow Keys Simultaneously

Case / Cover

  • Plastic (ABS) / Plastic (PC)

Electrical Connection

  • Screw Terminals, Max. 1.5 mm²
  • Cable Gland M16 and M20

Output Signal

  • 0-10 V, 2-Wire, Load Resistance min. 1 kOhm

Supply Voltage

  • AC 24 V ± 10 % or DC 21-35 V

Current Supply

  • 35 mA + Switch (7 mA Each) + Instrument with Automatic Zero Adjustment (20 mA) + 0-10 V Output (10 mA), Max. 80 mA

Long-term Stability

  • ≤ ± 0.03 inWC
  • ≤ ± 0.004 inWC with Automatic Zero Adjustment (Option)

  • For monitoring the differential pressure of air and other non-inflammable and non-aggressive gases
  • Differential pressure monitoring in filters and clean rooms

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