Gymna PULSON 200, User Manual

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Pulson 200
46
8.2.2 Test 2: Ultrasound
The maximum power transfer takes place at the operating frequencies. If the
equipment does not function at the correct frequency, this results in a too low
output power. It is therefore not necesary to check the operating frequencies.
8.2.3 Test 3: Electrical safety test (VDE 0751)
Notes:
Yes No
1. Connect the treatment head and place it in an ultrasound
measurement device. Press to select the
ultrasoundtherapy.
2. Select 1 MHz, continuous (duty cycle 100%), 2 W/cm²
The measured value is within ±20% of the Ppk value in the
channel window.
3. Select 1 MHz, duty cycle 50%, 3 W/cm²
The measured value is within ±20% of half the Ppk value
in the channel window.
4. Select 3 MHz, continuous (duty cycle 100%), 2 W/cm²
The measured value is within ±20% of the Ppk value in the
channel window.
5. Select 3 MHz, duty cycle 50%, 3 W/cm²
The measured value is ±20% of half the Ppk value in the
channel window.
6. Select 3 MHz, duty cycle 50%, 0.5 W/cm²
With a dry treatment surface, the Ppk value becomes 0.
7. Select 1 MHz, duty cycle 50%, 0.5 W/cm²
With a dry treatment surface, the Ppk value becomes 0.
Yes No
1. The resistance of the safety earth is less than 0.2
:
2. The housing leakage current is less than 1000 µA
3. The patient leakage current is less than 5000 µA