Ohmic UPM-DT-50SP User Manual

Digital ultrasound wattmeter

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DIGITAL

ULTRASOUND

WATTMETER

UPM-DT-50SP

USER MANUAL

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Page 1 DIGITAL ULTRASOUND WATTMETER UPM-DT-50SP USER MANUAL...
Page 3: Table Of Contents
SPECIFICATIONS ..............................NOTES ..................................CALIBRATION INTERVAL To ensure the accuracy of the UPM-DT-50SP, Ohmic Instruments recommends that it be calibrated at least once every 12 months. Calibration must be done by qualified personnel. Contact Ohmic Instruments for calibration. WARNING - USERS The UPM-DT-50SP is for use by skilled technical personnel only.
Page 4 CAUTION - MODIFICATIONS The UPM-DT-50SP is intended for use within the published specifications. Any application beyond these specifications or any unauthorized user modifications may result in hazards or improper operation.
Page 5 CAUTION - LIQUIDS Do not submerge or spill liquids on the UPM-DT-50SP. Do not operate the UPM-DT-50SP if internal components not intended for use with fluids may have been exposed to fluid, as the internal leakage may have caused corrosion and be a potential hazard.
Page 6 NOTICE – DISCLAIMER OHMIC INSTRUMENTS WILL NOT BE RESPONSIBLE FOR ANY INJURIES SUSTAINED DUE TO UNAUTHORIZED EQUIPMENT MODIFICATIONS OR APPLICATION OF EQUIPMENT OUTSIDE OF THE PUBLISHED INTENDED USE AND SPECIFICATIONS. NOTICE – DISCLAIMER OHMIC INSTRUMENTS RESERVES THE RIGHT TO MAKE...
Page 7: Introduction
INTRODUCTION The Model UPM-DT-50SP Ultrasound Power Meter is designed to measure the ultrasonic power output of diagnostic or therapeutic transducers up to 30 Watts. The principle of measurement is the radiant force method. The UPM-DT-50SP uses a positioning clamp to hold the transducer in degassed 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.
Page 8: Test Setup
TEST SETUP Water as a Measurement Medium* Ultrasound propagation in water closely approximates ultrasound propagation in tissue. Large areas in the body can consist of low attenuating material such as urine and amniotic fluid. Other areas of the body, such as the liver, contain higher attenuating materials. Water is used as a lower limit of the attenuation encountered in the body.
Page 9 Fill the tank 1/4” from the top with fresh degassed water. Power on the UPM-DT-50SP and allow the meter to zero (Note: A white LED light will illuminate near the top right of the faceplate while the meter stabilizes). Submerge the conical target into the degassed water at an angle to minimize disruption of the degassed water;...
Page 10 Target Support Stem of Conical Target Assembly Target Support Tube UPM-DT-50SP Test Tank Figure 2. Conical Target Installation...
Page 11 Transducer Placement To place the transducer, tighten the positioning clamp jaws onto the transducer handle; See Figure 3 for Positioning Clamp details. Loosen the two positioning clamp knuckles and insert the transducer head into the degassed water at an angle to minimize disruption of the degassed water.
Page 12 Conical Target Assembly Installed Transducer Handle Transducer Head Submerged and Positioned Directly Over Firmly Clamped in the Conical Target. Position. Figure 4. Transducer Placement Details...
Page 13: Meter Layout
METER LAYOUT Front White LED illuminates in background after power on, during stabilization. 1. On/Zero - Off Button: - Press to turn unit on or zero - Press and hold until OFF is displayed then release to turn off. 2. Print - Unit Button: - Press to print data via the RS232 port (see the Printing and Communications section).
Page 14 Back Communications / Print Power Input Receptacle Port (5VDC, 1 A) Bottom Battery Compartment (4 AA Batteries)
Page 15: Testing
TESTING 1. Place the UPM-DT-50SP on a stable and level surface. Avoid air currents and vibrations. 2. Review and complete all steps outlined in the Test Setup section. a. Degas Water b. Fill the UPM-DT-50SP tank c. Install the Conical Target d.
Page 16 PRINTING Print Details The print port option must be setup and installed by Ohmic Instruments. Contact Ohmic Instruments for print option pricing. Print Output Format: “0.000 g” (grams mode) or “0.00 custm” (custom Watts mode). An unstable reading is indicated by a “?” at the end of the print line (i.e., 0.000 g...
Page 17: Troubleshooting
Remove any excess force on the meter. Place the meter on a level surface and Err 8.4 Under load cycle power. Err 8.5 Tare out of range Remove any excess force on the meter. If any error persists, contact Ohmic Instruments Sales or Service for repair...
Page 18: Manual Revisions
Miscellaneous Updates LIMITED WARRANTY WARRANTY: OHMIC INSTRUMENTS WARRANTS ITS NEW PRODUCTS TO BE FREE FROM DEFECTS IN MATERIALS AND WORKMANSHIP UNDER THE SERVICE FOR WHICH THEY ARE INTENDED. THIS WARRANTY IS EFFECTIVE FOR TWELVE MONTHS FROM THE DATE OF SHIPMENT.
Page 19: Specifications
SPECIFICATIONS ULTRASONIC POWER MEASUREMENT POWER RANGE 0 to 30 W RESOLUTION ±50 mW MINIMUM DETECTABLE 50 mW POWER LEVEL ACCURACY ±3% + One Count Reading DUT OPERATING 0.5 to 10 MHz FREQUENCY DUT MAXIMUM 4.00 Inches (101.6 mm) TRANSDUCER SIZE TEST MEDIUM Degassed Water @ 24.0 ±3.0 °C (75.2 ±5.4 °F) ELECTRICAL...
Page 20: Notes
NOTES...
Page 21 NOTES...
Page 22 NOTES...
Page 24 OHMIC INSTRUMENTS 3081 ELM POINT INDUSTRIAL DRIVE ST. CHARLES, MO 63301 410-820-5111 www.ohmicinstruments.com sales@ohmicinstruments.com UPM-DT-50SP User Manual 08/17 – Rev 01 Copyright © 2017 Made in the USA...