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Model A2G-10 Differential Pressure Gauge

Brand: WIKA Alexander Wiegand SE & Co. KG

For ventilation and air-conditioning, NS 110.
Features
  • Zero adjustment in front
  • Simple mounting and dismounting
  • Two part construction (measuring element and case)
  • Scale ranges from 0.2 InWC (50 Pa) to 50 InWC (12,500 Pa)
  • Options:
    • Ingress protection, NEMA 4 (IP 65) 
    • Red mark pointer 
    • Internationally recognized traceable calibration certificate 
    • Measuring hose PVC or silicone, inner diameter 4 or 6 mm, length 25 m PVC or silicone tube ⅛” or ¼” inside diameter 
    • 2 duct connectors 
    • Output signal 4... 20 mA, 2-wire, power supply DC 14 V or output signal 0 ...10 V, 3-wire, power supply DC 15V (see datasheet A2G-15) 
    • Without mounting case

Specifications

Design

  • Per EN 837-3 and HVac regulations

Nominal Size

  • 4-1/2”

Accuracy

  • ± 3.0 % of Full Span
  • ± 5.0 % of Full Span, Ranges ≤ 0.5 InWC (125 Pa)

Ranges

  • 0 / 0.2 InWC (50 Pa) up to 0 / 50 InWC (12,500 Pa)

Pressure Units

  • InWc (Standard)
  • Other available units: kPa, Pa, mmWC, cmWC, mmHg

Compound Ranges

  • Starting from -0.1 / +0.1 InWC (-25/+25 Pa) (Other Pressure units and dual scales are available)

Pressure Limitation

  • Steady: Full Scale Value
  • Fluctuating: Full Scale Value

Overpressure Safety

  • 80 InWC (20 kPa)

Maximum Working Pressure (Static Pressure)

  • 80 InWC (20 kPa)

Temperature Limits

  • Ambient: -22° F... 176° F (-30° C... +80° C)
  • Media: 3° F...122° F (-16° C... +50° C)

Temperature Error

  • Additional error when temperature changes from reference temperature of 68° F (20° C) ± 0.5 % of Span for every 18° F (10° K) rising or falling

Ingress Protection

  • NEMA 3 (IP54 per EN 60529 / IEC 529)

  • For dry, clean, non-aggressive gases, usually air
  • Monitoring of blowers and ventilators
  • Filter monitoring via differential pressure
  • Positive overpressure in clean rooms
  • Positive and negative pressure in isolation chambers

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