62 14 972 D 3507
56
D 3507
.
031.01.07
.
02 11.2010
Starting up
Sirona Dental Systems GmbH
Functional test
Installation Instructions HELIODENT
PLUS
7.1.3
Leakage current test
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Auxiliary devices required
● Line-frequency, high-resistance measurement voltage source
(isolation transformer)
● A measuring circuit (MD) that meets the requirements of
IEC 60 601-1.
● Voltmeter
Alternative
Complete test units, e.g. the "Bender tester", fulfill these requirements as
well.
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Equivalent device leakage current measurement
Test assembly
1. Connect the measurement voltage source to the measuring circuit
(MD).
2. Connect the voltmeter to the measuring circuit (MD).
3. Connect the measuring circuit (MD to the metallic part (B) of the wall
module housing.
4. Short-circuit the power connection (N and L) with a suitable cable.
5. Connect the measurement voltage source to the shorted power
connection (A).
6. Switch on the power supply of the unit.
