Intelect TranSport®/Vectra Genisys® Ultrasound Therapy Systems
18
5 TROUBLESHOOTING
5.10 ULTRASOUND APPLICATOR OUTPUT TEST
Perform this test using all available Ultrasound
Applicators used with the system being tested.
NOTE:
See
page 17
for a list of equipment required for
Output
Tests.
A. Ultrasound Applicator Output Test
Procedures
1. Set up Ohmic Instruments UPM DT 10 or
UPM DT 100 ultrasound power meter per
operator’s instructions and fill test reservoir with
degassed
water.
2 Place an Applicator into the power meter
holder. Make certain the Applicator’s Sound
Head is completely submerged in the
degassed water and centered directly over
the stainless steel cone.
Refer to Figure 5.7.
3. Zero or Tare the power meter.
4. Turn the unit on.
5. Press the Intensity Display button until “Watts”
appears in the intensity area of the Display.
6. Increase Intensity to maximum.
7.
Press
“Start”.
8. Press the Frequency button until "1 MHz” is
displayed in the frequency area of Display.
9. Compare power meter readings to
Figure
5.8
for each of the power settings listed in
the
chart.
10. Press the Frequency button until “3.3 MHz” is
displayed in the frequency area of Display.
Repeat test and compare readings to
Figure 5.8
.
B. Ultrasound Applicator Output Test Results
1. Output ranges fall within the specified
ranges as listed in
Figure 5.8.
Unit passed test.
2. Readings fall outside specified ranges of
Figure 5.8.
a) Possible bad degassed water in power
meter.
b) Possible use of power meter other than
Ohmic Instruments UPM DT 10 or
UPM DT 100 ultrasound power meter.
c) Possible bad or out of calibration Applicator.
d) Check Ultrasound Board.
e) Check Control Board.
APPLICATOR OUTPUT SPECIFICATIONS
APPLICATOR SIZE
APPLICATOR SIZE
POWER SETTING
POWER SETTING
WATTS
WATTS
OUTPUT RANGE
OUTPUT RANGE
1 cm2
1*
2*
0.8 - 1.2
1.6 - 2.4
2 cm2
1
2
4
0.8 - 1.2
1.6 - 2.4
3.2 - 4.8
5 cm2
1
2
5
10
0.8 - 1.2
1.6 - 2.4
4.0 - 6.0
8.0 - 12.0
10 cm2
1
5
10
15**
20**
0.8 - 1.2
4.0 - 6.0
8.0 - 12.0
12.0 - 18.0
16.0 - 24.0
* 3.3 MHz Only
**1.0 MHz Only
FIGURE 5.8
FIGURE 5.7
NOTE:
The position of the Applicator over the
stainless steel cone is critical to the test results.
The Applicator must be level and centered.
