Mindray uMEC10, Service Manual

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Electrical safety tests are used to timely detect potential electrical safety risks that might
cause damage to patients, operators or maintenance personnel. Electrical safety tests must be
carried out under normal environmental conditions (that is, normal temperature, humidity and
barometric pressure).
The electrical safety tests described in this chapter take 601 safety analyzer as an example.
The safety analyzer used in different regions may vary. Make sure that the electrical safety
test scheme you adopted is applicable.
Device connection is shown in the following figure.
EUT
A:ACpower(programmablepower
supply,frequencycontrol)
B:Isolationtransformerin
leakagecurrenttesttooling
C:Securitytester
Tools required:

Safety analyzer (601 PROXL)

Isolation transformer
5.7.1 Enclosure Leakage Current Test
1. Connect 601 PROXL safety analyzer to a 264 VAC 60 Hz power supply.
2. Use power cord to connect the equipment under test (EUT) to the auxiliary power output
connector of 601 PROXL safety analyzer.
3. Connect one end of the red lead to the "Red input terminal" of the safety analyzer, and
clip the other end on the metal foil attached on the surface of the outer housing of the
EUT.
4. Power on 601 PROXL safety analyzer. Press "5-Enclosure leakage" on the panel to
access the test interface for enclosure leakage current test.
5. The enclosure leakage current is not greater than 100 µA in normal condition and is not
greater than 300 µA in single fault condition.