Dwyer AFH2 Air Flow Hood Measures the volumetric flow rate of air with highly accurate digital manometer

The Dwyer AFH2 air flow hood is designed to measure volumetric air flow from diffusers, grilles and registers. The AFH2 Air Flow Hood maintains a running average of measurements in the desired units, and provides the ability to manually record measurements with the manometer over a given time period. The highly accurate digital manometer has an auto-zero feature and will autozero at user-defined intervals. The digital manometer easily mounts to the flow hood with its magnet back-plate. Break down is very quick and easy as tools are not required. In addition to these features, the unit will alert you when its battery is running low in order to avoid recording inaccurate measurements. This lightweight flow hood is durable and easily stores into an included travel case. New low flow adapter kit allows easy conversion of any AFH2 into a low flow hood. All kits fit easily into the AFH2' s travel case. The AFH2 comes with a calibration certificate for both hood and manometer. Features Part number AFH2 Manufactured by Dwyer Instruments 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) : ± 3% of reading ± 9 CFM Thermal Effect: ± 0.1% of range in use per 2° F ( 1° C) Span Stability v. Temperature: Better than 0.1% of range in use per 2° F ( 1° C) Negligible zero drift due to auto zero system 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 RS-232 serial interface ( baud rate 9600) Memory captures 2500 readings in any engineering unit CE approved What' s in the Box Wheeled carrying case with two foam cutouts Micromanometer 2 X 2 Nylon hood 4 Metal bars for frame assembly 2 Black plastic tubing adapters Two 3 meter lengths of tubing Nylon neck sling Calibration certificates for micromanometer and hood Instruction Manual A-189 110 V battery charger 8.4 V 120 NiMH rechargeable battery ( installed)