Prodigio service manual Version 1.0 en
86
FUNCTION TESTS
8.6 Protective earth (PE) continuity test
8.6.1 What is the protective earth continuity test about?
This test is only necessary
- for class 1 equipment (three-wire power cord with protective earth)
- after a repair whenever a general disassembly was performed.
Therefore all Prodigio models have to be tested after general disassembly, except
country-specific models (USA, Canada, Mexico and Japan) without a protective earth
connection (refer to "Wiring diagrams - Prodigio coffee machine" on page 70 and
following).
8.6.2 General
Legal regulation
In case of a repair/modification of the coffee machine, the repair centre is bound by law
to protect the user/consumer by
- restoring the regular condition of the appliance and
- performing the mandatory tests according to applicable national regulations (e.g.
DIN VDE 0701) or international regulations (e.g. EN/IEC 60335-1 “Safety of house-
hold and similar electrical appliances”)
Description
Protective earth continuity measurements are made between the protective earth terminal
of the power plug and the casing of the thermoblock and milk frother (Prodigio&milk only).
This test assures that
- the ground (earth) connection does not have an interruption between the power plug
and the thermoblock
- the permissible ground resistance is less than 0.3 Ohms (with a test current of
200 mA DC).
Test equipment
Special test equipment is needed that complies with the regulations to perform protec-
tive earth continuity measurements. Detailed requirements and tolerances must be veri-
fied by your local authorities or measurement supplier in any case.
Test report
For legal reasons a repair or test report should be prepared and filed with following infor-
mation
- customer (name, address)
- type and serial number of coffee machine
- date of repair/test(s)
- performed test(s)/measuring value(s)
- used test equipment
-signature
Ask Nespresso for
recommendations
about test equipment.
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