Mindray uMEC12 - Enclosure Leakage Current Test

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 pre
ssure).
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 PRO
XL
safety
analyzer
to a
264 VAC
60 Hz
power
supply.
2.
Use powe
r cord
to connect
the equipm
ent under
test (EU
T) to
the auxilia
ry pow
er output
connector of 601 PROXL safety analyzer.
3.
Connect one
end of
the r
ed lead
to the
"Red in
put 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 enc
losure leaka
ge curre
nt is
not greate
r than
100 µA
in normal
condition and
is not
greater than 300 µA in single fault condition.