Ohmic UPM-DT-50SP, User Manual

Page: 15 / 24

9
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.
Position the DUT’s transducer
3. Allow the UPM-DT-50SP and tank water to stabilize. With no ultrasonic power
applied, press the Tare button to
“Net” zero the meter.
4. Place the included 1 gram Standard Weight on the arm of the conical target
assembly (the flat part above the water). The UPM-DT-50SP should read 1.00 ±
0.10 grams.
5. Remove the 1 gram Standard Weight.
6. Select the desired test measurement unit. Allow the UPM-DT-50SP and tank
water to stabilize. With no ultrasonic power applied, press the Tare
button to “Net”
zero the meter.
7. Test the DUT, averaging three measurements for the final recording.
a. Once
the display’s stability indicators are shown, activate the DUT for
several seconds, allowing the measurement to stabilize, and record the
measurement.
b. Deactivate the DUT and allow all components to stabilize.
c. Tare the meter.
d. Repeat steps 7a, 7b, and 7c two times.
e. Average the three measurements for the final recording.
8. Refer to the DUT manufacturer for acceptable test limits.
9. After testing, unplug the UPM-DT-50SP, empty the tank, and place the dry conical
target assembly in the carry case for protection.
TESTING