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Dwyer 477AV Digital Manometer with ±0.5% Accuracy

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Dwyer 477AV Digital Manometer with ±0.5% Accuracy

Material : Consult Factory.

Gauge : Differential Pressure Gauges

Pressure Range : See Chart

Accuracy : ±0.5% FS, 60 To 78°F (15.6 To 25.6°C)

Product Name : Dwyer 477AV-000 Digital Manometer

Brand Name : Dwyer

Model Number : 477AV-000

Certification : CE

MOQ : 1PCS

Payment Terms : L/C,D/A,D/P,T/T,Western Union,MoneyGram

Supply Ability : 1000 Piece/Pieces per Week negotiable

Delivery Time : 5-8 work days

Packaging Details : each unit has individual box and all boxes are packed in standard packages or customers requests available

Size : 80MM

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Dwyer 477AV Digital Manometer with ±0.5% Accuracy
Attribute Value
Accuracy ±0.5% FS, 60 To 78°F (15.6 To 25.6°C)
Material Consult Factory
Pressure Range See Chart
Size 80MM
Product Name Dwyer 477AV-000 Digital Manometer
Gauge Differential Pressure Gauges
Series 477AV Handheld Digital Manometer
Dwyer 477AV Digital Manometer with ±0.5% Accuracy Dwyer 477AV Digital Manometer with ±0.5% Accuracy

The Series 477AV Handheld Digital Manometer is a versatile measuring instrument designed to accurately measure pressure, air velocity, and flow in various applications. With ±0.5% full-scale accuracy (at 60-78°F/15.6-25.6°C), it eliminates manual calculation errors by integrating built-in velocity and flow algorithms. The device features field-calibratable zero/span adjustments and a damping function to stabilize fluctuating readings, making it ideal for HVAC diagnostics, ductwork testing, and industrial airflow management.

Product Features
Multi-Parameter Measurement
  • Measures pressure (in w.c., psi, kPa, etc.), air velocity (fpm, m/s), and flow (cfm, m³/h)
  • Auto-calculates velocity/flow from pressure inputs, reducing field errors
Accuracy & Stability
  • ±0.5% FS accuracy in optimal temperatures (60-78°F), ±1.5% in extended ranges (32-104°F)
  • ±0.1% FS hysteresis for consistent readings across pressure cycles
Field Calibration
  • Adjustable zero/span values for on-site calibration without external tools
  • Damping feature to smooth out transient pressure fluctuations
Display & Units
  • 0.42" 4-digit LCD with selectable units for pressure, velocity, and flow
  • Supports 12+ pressure units (e.g., in Hg, mbar), 6 velocity units, and 3 flow units
Portability & Power
  • Lightweight design (10.2 oz/289 g) with 9V alkaline battery (user-replaceable)
  • Low-power mode for extended field use
Technical Specifications
Parameter Details
Model Range Examples 477AV-0: 0-10.00" w.c. / 477AV-4: 0-10.00 psi / 477AV-7: 0-100.00 psi
Accuracy ±0.5% FS (15.6-25.6°C), ±1.5% FS (0-40°C)
Pressure Limits Varies by model (e.g., 477AV-0: ~2 psi burst pressure)
Temperature Range Operating: 0-140°F (-17.8-60°C); Storage: -4-176°F (-20-80°C)
Display 0.42" 4-digit LCD, auto-brightness
Process Connections 1/8" or 3/16" ID tubing (barbed fittings); 1/8" compression fittings (477AV-7/8)
Power Supply 9V alkaline battery (150+ hours typical life)
Approvals CE certified

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