Performance Verification
ARGUS VCM
Safety Tests
ARGUS VCM
safety tests meet the standards of, and are performed in accordance with,
IEC60601-1, Clause 19 (Second Edition, 1988; Amendment 1, 1991-11, Amendment 2,
1995-03), for instruments classified as Class I, Type BF.
Protective Earth Continuity
This test checks the integrity of the power cord ground wire from the AC plug to the
instrument chassis ground. The current used for this test is less than or equal to 4 Volts
RMS, 50 to 60 Hz, and 25 Amperes.
1. Connect the monitor AC mains plug to the analyzer as recommended by the analyzer
operating instructions.
2. Connect the analyzer resistance input lead to the equipotential terminal (ground lug)
on the rear of the instrument. Verify that the analyzer indicates 100 milliohms or less.
Electrical Leakage
Earth Leakage Current
This test is in compliance with IEC60601-1 earth leakage current. The applied voltage for
IEC60601-1 the voltage is 264 Volts AC, 50 to 60 Hz. All measurements shall be made
with the power switch in both “On” and “Off” positions.
1. Connect the monitor AC plug to the electrical safety analyzer as recommended by the
analyzer operating instructions.
2. Perform test as recommended by analyzer operating instructions.
Table 2. Earth Leakage Current Values
Test Condition
Allowable Leakage Current (microamps)
Normal Condition (NC)
500
SFC Open Supply (SFC OS)
1000
Normal Condition RM (NCRM)
500
SFC Open Supply RM (SFC OSRM)
1000
Note: Earth leakage current is measured under various conditions of the AC mains and
protective earth conductor. For each condition, the measured leakage current must
not exceed that indicated in Table 2.
Note: NC-normal condition
/ SFC-single fault condition
/ RM-reverse mains/line voltage
Enclosure Leakage Current
This test is in compliance with IEC60601-1 enclosure leakage current. This test is for
ungrounded enclosure current, measured between enclosure parts and earth. The
applied voltage for IEC60601-1 the applied voltage is 264 Volts AC at 50 to 60 Hz.
1. Connect the monitor AC plug to the electrical safety analyzer as recommended by the
analyzer operating instructions.
2. Place a 200 cm
2
foil in contact with the instrument case making sure the foil is not in
contact with any metal parts of the enclosure that may be grounded.
ARGUS VCM
Service Manual 21
