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F U N C T I O N T E S T S
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 Pixie models have to be tested after general disassembly, except country-
specific models (USA, Canada, Japan) without a protective earth connection (refer to
"Wiring diagrams" on page 59 and following).
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 respective tests according to EN/IEC 60335-1 "Safety of household
and similar electrical appliances" and national regulations (e.g. DIN VDE 0701).
Protective earth continuity measurements are made between the protective earth
terminal of the power plug and the thermoblock casing.
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).
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.
For legal reasons a repair or test report should be prepared and filed with following infor-
customer (name, address)
type and serial number of coffee machine
date of repair/test(s)
performed test(s)/measuring value(s)
used test equipment
Pixie service manual