Alnor EBT721 EBT 721 Air Balancing Balometer Flow Capture Hood |
The Alnor Model EBT721 Air Balancing Balometer Flow Hood is an electronic multipurpose air balancing instrument for measuring the volume of air flow at diffusers and grills.
The Alnor EBT721 Balometer Electronic Balancing Tool includes a detachable multi purpose digital manometer that can be utilized with a wide range of common balance and test tools such as air foil, pitot, relative humidity, and temperature probes, or a 16 point velocity matrix. It is the professional’s choice for facilities personnel and contractors due to its light weight and ergonomic design.
The EBT720 is one of the most versatile, advanced, and user friendly manometers available on the market today. The auto zeroing feature enables you to take measurements all through the day. The velocity matrix accessory is perfect for measuring face velocity through coils, filters, as well as other specialized spaces.
Applications include HVAC testing, thermal comfort studies, balancing, adjusting, as well as air volume measurements.
EBT721 Features:
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Data logging
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Pre assembled hood frames save time on site
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Multiple hood sizes available
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Measurement range: 25 to 2500 cfm (42–4250 m3/h)
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Automatic density correction
Standard Equipment
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2 x 2 foot capture hood frame base
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Detachable digital manometer
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Wheeled luggage style carrying case
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18 inch Pitot probe
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2 Static pressure probes
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Two 8 foot Norprene tubes
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LogDat1 software for generating reports
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Serial interface cable
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Neck strap
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4 AA rechargeable NiMH batteries
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NIST calibration and manual |
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EBT721 Specifications |
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Velocity Range |
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Pitot probes |
25 to 8,000 ft/min (0.125 to 40 m/s) |
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Air flow probe |
25 to 5,000 ft/min (0.125 to 25 m/s) |
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Velocity matrix |
25 to 2,500 ft/min (0.125 to 12.5 m/s) |
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Accuracy |
±3 percent of reading ±7 ft/min (±0.04 m/s) at
velocities >50 ft/min (>0.25 m/s) |
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Units |
ft/min, m/s |
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Resolution |
1 ft/min (0.01 m/s) |
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Pressure |
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Differential pressure |
±15 in. H2O (±3735 Pa);
150 in. H2O (37.5 kPa),
maximum safe operating pressure |
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Absolute pressure |
15 to 40 in. Hg (356 to 1016 mm Hg) |
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Accuracy |
±2 percent of reading ±0.001 in. H2O (±0.25 Pa)
static and differential; ±2 percent of reading absolute |
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Units |
in. H2O, in. Hg, Pa, hPa, kPa, mm Hg,
cm Hg, mm H2O, cm H2O |
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Resolution |
0.00001 in. H2O (0.001 Pa) static and
differential; 0.01 in. Hg (1 mm Hg) absolute |
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Volume |
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Range |
25 to 2,500 ft 3/min (42 to 4250 m3/h) capture hood |
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Accuracy |
±3 percent of reading ±7 ft3/min (±12 m3/h) at
flows >50 ft3/min (>85 m3/h) |
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Units |
ft3 /min, m3/h, m3/min, l/s |
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Resolution |
1 ft 3/min (1 m3/h) |
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RH |
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Range |
0 to 95 percent RH temperature/RH probe |
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Accuracy |
±3 percent RH |
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Resolution |
0.1 percent RH |
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Temperature |
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Sensor in base |
40 to 140 degrees F (4.4 to 60 degrees C) |
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Temperature probe |
-40 to 250 degrees F (-40 to 121 degrees C) |
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Temperature/RH probe |
14 to 140 degrees F (-10 to 60 degrees C) |
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Accuracy |
±0.5 degrees F (±0.3 degrees C)
from 32 to 160 degrees F (0 to 71 degrees C) |
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Units |
degrees F, degrees C |
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Resolution |
0.1 degrees F (0.1 degrees C) |
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Instrument Temperature Range |
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Operating |
40 to 140 degrees F (4.4 to 60 degrees C) |
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Storage |
-4 to 160 degrees F (-20 to 71 degrees C) |
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Statistics |
min, max, average up to 1000 readings |
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Data Storage |
1,000 readings, time and date stamped | |
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