We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
The Dwyer AFH2 Air Flow Capture Hood allows you to measure volumetric air flow from grilles, diffusers and registers. Capable of recording measurements manually with the manometer over a period of time, the AFH2 sustains a running average of measurements in the selected volume mettric flow units. Users can define a desired interval at which the digital manometer will auto zero. The AFH2 ensures the most accurate measurements with its low battery alert feature.
The manometer is effortlessly mounted to the flow hood with its magnet back-plate, and the flow hood itself can be easily stored and transported with the included travel case. Now, providing even more adaptability, the low flow adapter kit provides for simple conversion of any AFH2 into a low flood, making the AFH2 efficient and versatile all at once.
INCLUDED:
• 1 Wheeled carrying case with two foam cutouts
• 1 pressure micromanometer
• 1 2 'X 2' Nylon hood
• 4 Metal bars for frame assembly
• 2 Black plastic tubing adapters
• 2 3 meter lengths of tubing
• 1 nylon neck sling
• 2 factory test report, one for micromanometer and one for hood
• 1 Instruction Manual
• 1 A-189 110 V battery charger
• 1 8.4 V 120 NiMH rechargeable battery installed
- Service:
- Air.
- Volume Flow Rate Units:
- CFM, l/s, m3/hr.
- Volume Flow Ranges:
- > Supply: CFM: 41 to 1176; l/s: 19 to 555; m3/hr: 69 to 2000;
Exhaust: CFM: 45 to 1176; l/s: 21 to 555; m3/hr: 76 to 2000. - Volume Flow Ranges with low Flow Kit:
- >Supply: CFM: 25 to 1176; l/s: 12 to 555; m3/hr: 43 to 2000;
Exhaust: CFM: 29 to 1176; l/s: 14 to 555; m3/hr: 49 to 2000. - Accuracy @ 20°C (68°F):
- >Supply: ±3% of reading ±9 CFM (±4 l/s, 14 m3/hr);
Exhaust: ±3% of reading ±9 CFM (±4 l/s, 14 m3/hr). - Span Stability v. Temperature:
- Better than 0.1% of range in use per 2°F (1°C).
- Zero System Accuracy:
- ±1 count (±0.05 Pascal typical; ±0.0002 in w.c.).
- Temperature Limits:
- >Operating: 32 to 122°F (0 to 50°C);
Storage: 23 to 122°F (-5 to 50°C). - Thermal Effect:
- ±0.1% of range in use per 2°F (1°C).
- Zero Drift:
- Negligible due to auto zero system. When auto zero set at 30 second intervals (2 minute warm up).
- Orientation Effect:
- Any 45 degree change 0.0004 in w.c. (0.1 pascal) typical.
- System Air Leak:
- 0.366 in3/hr (0.1 ml/min) @ 20 in w.c. (5 kPa) typical.
- Maximum Differential Pressure:
- 60 in w.c. (15 kPa).
- Auto Ranging Display:
- 0.375" high digits.
- Resolution:
- 1 CFM, 1 l/s, 1 m3/hr.
- Output:
- RS-232 serial interface (baud rate 9600).
- Memory Capability:
- 2500 readings in any engineering unit.
- Power Requirements:
- 8.4 V NiMH battery, installed functional, user replaceable (optional 9 V alkaline battery may be used in place of rechargeable).
- Dimensions:
- 30" x 24" x 24" (965 x 610 x 610 mm). Hood only: 2' x 2' (600 mm x 600 mm).
- Weight:
- 8.8 lb (4 kg).
- Agency Approval:
- CE.
Write Your Own Review