Nespresso Citiz & Co EF 488 - Manual (Page 145)

Citiz service manual 145
F U N C T I O N T E S T S
9.9.3 Test sequence
Danger of electrical shock/short circuit!
Do not plug in the coffee machine during insulation test.
Danger of electrical shock!
Do not touch tip of test probes.
Do not touch metallic parts of coffee machine during test.
Read and observe safety instructions in user manual of test equipment.
A Swiss power plug is
shown here as an
example.
Use a short circuit
plug or special alliga­
tor clips etc. as sub­
stitute for this test adapter.
1) Connect the phase and neutral pin of
the power plug together with a test
adapter (procured by the repair
centre).
2) Connect the black measuring cable to
the test adapter (see image).
3) Turn the ON­OFF machine's main
switch on position I (ON).
Symbolic illustration
of test equipment.
4) Switch on test equipment and select
an insulation test voltage of 500 V DC.
Some test equipment
displays test passed
or failed instead of
the insulation resistance.
5) Touch closing handle with red test
probe.
6) Press "measure" button.
7) Read off displayed insulation resist­
ance or test result.
The insulation resistance must be
higher than 300 kOhm
(300,000 Ohm).