1
Chapter 1. Introduction
The Electronic Balancing Tools EBT720/EBT721 and ProHood™ PH720/PH721 capture hoods are
lightweight and easy-to-use instruments packaged with a variety of accessories for measuring pressure,
temperature, humidity, air velocity, and air volume. Features of the micromanometer include:
Single-function keys for ease of use
Auto-zero for pressure measurements, auto-density correction, and back-pressure compensation when
used with a capture hood
User-selectable English and metric units
Conversions between actual and standard flow
Discrete or continuous display and data logging capabilities
Output port for downloading to a printer or a PC
Powered by AC adapter or batteries (rechargeable NiMH or alkaline)
Full field calibration
Designed for:
Test and balance professionals
Mechanical contractors
Industrial hygienists
Plant engineers and facilities maintenance personnel
Applications include:
Test, balance, or commission HVAC systems
Test clean rooms and biological safety cabinets
Measure fume hood or filter face velocity
Measure pressure, temperature, relative humidity, air velocity, or air flow
WHILE USING THE BALOMETER
AIR BALANCING INSTRUMENT TO TEST AIR
FLOW IN DUCTS
, YOU MAY COME INTO CONTACT WITH OR BE EXPOSED TO
DUST
, POLLEN, MOLD, FUNGUS, OR OTHER AIRBORNE CONTAMINANTS. IF YOU
ARE OR MAY BE SENSITIVE TO DUST
, POLLEN, MOLD, FUNGUS, OR OTHER
AIRBORNE CONTAMINANTS
, ALWAYS USE AN APPROPRIATE MASK OR
RESPIRATOR WHILE EMPLOYING THE
BALOMETER
®
AIR BALANCING
INSTRUMENT
.
Instrument Description
The basic EBT720/PH720 includes a micromanometer, carrying case, 18 in. (46 cm) pitot tube, (2) static
pressure probes, (2) 8 ft (2.4 m) Norprene
®
tubing, user manual, LogDat1™ for Windows
®
data
downloading software and RS232 interface cable, neck strap, internal NiMH battery charger, (4) AA
NiMH batteries, AC adapter, and NIST traceable certificate.
®
Norprene is a registered trademark of Norton Performance Plastics, Akron, Ohio, USA.
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