Lumio service manual
84
FINAL INSPECTIONS
Insulation resistance test
This test verifies the insulation resistance
- between the protective earthing conductor of the coffee machine and the phase/
neutral conductor of the coffee machine.
- of all conductive and touchable parts of the coffee machine (with the help of a test
probe).
Test procedure
1. Remove water tank.
2. Connect power plug of coffee machine to test equipment (A).
3. Switch on test equipment (B) and select protective insulation test.
4. Read off displayed insulation resistance between earthing conductor and phase/
neutral conductors.
5. Switch test voltage to test probe (if necessary).
6. Touch 3 marked screws on ring of main frame with test probe one after the other.
7. Press start button (C) for each screw and read off displayed resistance.
The coffee machine
is assembled com-
pletely and has passed
the protective earthing
test.
The insulation resistance must be higher than 2.0 Mega Ohm with a test
voltage of 500 VDC.
B
A
TEST PASSED
C
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