BC Biomedical USP-100A User Manual
DIGITAL
ULTRASOUND
WATTMETER
USP-100A
USER MANUAL
ULTRASOUND WATTMETER
Model USP-100A
TABLE OF CONTENTS
Introduction .............................................................................................................. 3
Unpacking the USP-100A ........................................................................................ 3
Replacement Parts .................................................................................................. 3
Selecting a Location for Operation .......................................................................... 4
Panel Controls and Display Indicator....................................................................... 4
Operating Procedure................................................................................................ 5
Transporting the USP-100A.....................................................................................6
General Operating Notes ......................................................................................... 6
Line/Battery Power...................................................................................... 6
Battery Installation....................................................................................... 6
Set Up ......................................................................................................... 7
Calibration ................................................................................................................ 7
Serial Computer/Printer Interface ............................................................................ 7
Programming Print Control ...................................................................................... 8
RS-232 ..................................................................................................................... 9
Output Formats ........................................................................................................ 10
Shipping Instructions for the USP-100A .................................................................. 11
Specifications ........................................................................................................... 12
Maintenance............................................................................................................. 13
Water, Tank Size, Transducer Placement & Temperature Considerations ............ 13
Ultrasound Radiation Levels .................................................................................... 14
Theory of Measuring Ultrasound Power With the Radiation Force Method ............ 15
Warranty................................................................................................................... 16
Sample Inspection Record (2 pages) .................................................................... 17
1
NOTICE
BC GROUP INTERNATIONAL, INC. RESERVES THE RIGHT TO MAKE
CHANGES TO ITS PRODUCTS OR SPECIFICATIONS AT ANY TIME,
WITHOUT NOTICE, IN ORDER TO IMPROVE THE DESIGN OR
PERFORMANCE AND TO SUPPLY THE BEST POSSIBLE PRODUCT. THE
INFORMATION IN THIS MANUAL HAS BEEN CAREFULLY CHECKED
AND IS BELIEVED TO BE ACCURATE. HOWEVER, NO RESPONSIBILITY
IS ASSUMED FOR INACCURACIES.
CONTACT INFORMATION
BC BIOMEDICAL
BC GROUP INTERNATIONAL, INC.
PO BOX 25125
9415 GENTRY AVE
ST. LOUIS, MO 63125
USA
1-800-242-8428
314-638-3800
www.bcgroupintl.com
sales@bcgroupintl.com
Manual USP-100A Copyright © 2006
www.bcgroupintl.com
Made in the USA
10/06 Rev 02
2
INTRODUCTION
Measurement of power output levels of diagnostic and therapeutic ultrasound equipment has become
increasingly important to determine exact patient exposure levels in case a potential risk exists to the
patient. Since the Radiation Control for Health & Safety Act of 1968 and the 1976 Medical Device
Amendments to the FDA Act became effective, all manufacturers of diagnostic Doppler ultrasound
equipment are required to submit information regarding their maximum peak and average exposure level,
beam patterns, and other pertinent information. Hospitals are responsible for regularly scheduled testing
(every six months) of output power and safety to maintain their accreditation.
The Ultrasound Wattmeter, Model USP-100A, is designed to measure the ultrasound power output of
diagnostic or therapeutic transducers up to 30 watts. The principle of measurement is the radiant force
method. The USP-100A uses a positioning clamp to hold the transducer in de-gassed water above a
conical target. The ultrasonic energy passes through the water to reflect off the target and is then
absorbed by the rubber lining. The radiant power is directly proportional to the total downward force
(weight) on the target. This weight is then transferred through the target support assembly to the electromechanical load cell inside the scale. The cell is in a computer-controlled feedback loop and produces a
digital readout in watts of power (custom units) or grams of force. The choice of units (grams or watts) is
selected by front panel pushbuttons. The USP-100A is supplied with a plug-in 120 VAC to 12VDC 400
mA adapter (using another adapter not rated the same may damage unit). The USP-100A has a display
resolution of ±200 milliwatts.
UNPACKING THE USP-100A
The power meter comes complete with all accessories in a sturdy carrying case. To make ultrasonic
measurements, the water tank requires only one pint of de-gassed distilled water. If de-gassed water is
not available, use distilled water, NOT tap water.
The following replacement parts can be ordered if necessary from BC Group :
REPLACEMENT PARTS
• Test Tank with Rubber
• Positioning Clamp Assembly
• Calibration Weight Standards
• 120 VAC to 12 VDC 500 mA power adapter
• PDF of User Manual available online at
www.bcgroupintl.com
• Carrying Case
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SELECTING A LOCATION FOR OPERATION
The USP-100A should always be used in an environment free from excessive air currents, corrosives,
vibration and temperature or humidity extremes. These factors will affect the displayed readings.
DO NOT operate the USP-100A:
• Next to open windows or doors causing drafts or rapid temperature changes
• Near air conditioning or heat ducts
• Near vibrating, rotating or reciprocating equipment
• Near magnetic fields or equipment that generate magnetic fields
• On an non level work surface
Allow sufficient space around the instrument for ease of operation and keep away from radiant heat
sources.
Never set any material on the USP-100A or place your hands or fingers on it while taking readings.
PANEL CONTROLS & DISPLAY INDICATOR
1. On/Zero/Off - Yes button; Press to turn unit on or zero, press and hold until OFF is displayed then
release to turn off.
2. Print/Unit - No button; Press to print, press and hold then release when unit desired is displayed.
3. Function/Mode - Back button
4. Tare/Menu-Cal - Exit button; Press to tare
5. 7 - segment display; Shows readings. A “g” after the reading indicates grams.
6. Stability Indicator
7. Net Indicator
8. 14 - segment display; Shows units, Custom is watts.
9. Symbols for weighing units are:
Grams Mode
Custom Mode
x.xx x.x
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