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Conducting tests in accordance with VDE 0751-1/EN 62353, Example 5 - Devices without protective conductor (PC II) and with applied part of type CF (or BF)
17.3 Leakage current from the applied part
Limit values – see Table 1 on Page 49
Here the current flowing from the power supplies and touchable conductive
parts to the applied parts is measured (Fig. 122).
With the „altern." setting the leakage current is determined using the
alternative measuring method (previously designated as substitute patient
leakage current).
With the „mains" setting the leakage current is determined by applying an
auxiliary voltage between the mains protective conductor (and housing
parts) and the applied part (previously designated as patient leakage current
- mains voltage at the applied part).
The star sign on the left side of the display blinks when the
measuring process is running (the values are being measured).
The [OK] button appears when the measured value is determined.
The symbol & blinks to indicate the connection to the mains voltage.
With the [help] button, you can also go to a help display from here.
Pressing the [OK] button automatically reverses the polarity of the mains
plug of the test object.
Fig. 122
Operating manual for the TG uni 1, TG euro 1 and TG euro 1 med appliance tester
Thereafter, you are again warned about the connection to the mains
voltage. After confirmation by pressing the large button, the mains voltage is
switched on again and the leakage current of the applied part is measured
again.
17.4 Function test
Press the [OK] button to go to the „Function test" menu.
Caution! The test object is supplied with mains voltage
during the test.
Before the mains voltage is connected a warning message may appear in
the display. The automatic test procedure is stopped; it only proceeds when
a button is pressed (Fig. 123).
After you have confirmed execution of the function test by pressing the
button, the appliance tester changes over to the function test display (Fig.
124).
The display shows the instantaneous mains voltage, the load current, the
active power, apparent power and reactive power, the power factor and
mains frequency.
17.5 Inspecting the inscriptions
At this point the values displayed in the function test should be compared
with the data on the type plate of the test object.
Fig. 123
65
Fig. 124
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