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Maintenance: Electrical Safety Tests
Revision A
DASH 2000 Patient Monitor
3-33
2000 412-001
Hi-Pot (Dielectric
Withstand) Test
The high potential (Hi-Pot) tests provide a method of checking patient
isolation circuits and protect patients connected to the device under test
from potential electrical health hazards. These tests are recommended
for direct patient-connected medical devices to check the integrity of the
patient isolation circuitry after any isolated component in the device has
been repaired.
Recommendations
The manufacturer recommends that hi-pot tests be performed whenever
a circuit board in the patient-isolated portion of the device under test is
removed, repaired, or replaced. Examples of patient-isolated components
include, but are not limited to, the front panel patient cable connectors,
the isolated power supply, or any patient data acquisition assemblies.
WARNING
Failure to perform hi-pot tests may cause undue
equipment failure and possible health hazards. The
manufacturer does not in any manner, unless an
Equipment Maintenance Agreement exists, assume the
responsibility for performing these recommended hi-pot
tests. The sole responsibility rests with the individuals,
hospitals or institutions utilizing this equipment.
Manufacturer service representatives may, at their
discretion, use this procedure as a helpful guide during
visits to the equipment site.
Test Conditions
These tests may be performed under normal ambient conditions of
temperature, humidity, and pressure.
Test Equipment
Equipment required to perform these tests is listed below. Equivalent
equipment may be substituted as necessary.
Preparation
Follow these steps in the same order in which they are listed.
1.
Set up the AC/DC Hi-Pot Generator in the following manner:
¥
Power switch Ð ON,
¥
VOLTAGE RANGE selector Ð MEDIUM (10 kVA),
¥
RAISE VOLTAGE selector Ð 0 volts,
¥
OUTPUT & CURRENT selector Ð 2 mA range, and
¥
Allow the tester to warm up for 15 minutes before continuing
with this test.
2.
Connect the ground pin on the power cord connector of the device
under test to the ground of the AC/DC Hi-Pot Generator.
Name
Manufacturer
Part Number
AC/DC Hi-Pot Generator
Hipotronics
AD125
ECG Test Body
MEI
MT-3387
Содержание marquette Dash 2000
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Страница 82: ...Maintenance Repair Log 3 36 DASH 2000 Patient Monitor Revision A 2000 412 001 ...
Страница 156: ...UPPER LEVEL ASSEMBLY Spare Parts List 7 10 DASH 2000 Patient Monitor Revision A 2000 412 001 ...
Страница 157: ...Revision A DASH 2000 Patient Monitor 8 1 2000 412 001 8 ASSEMBLY DRAWINGS Contents ...
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