Revision A
Dash 3000/4000 Patient Monitor
4-29
2000966-339
Maintenance:
Electrical Safety Tests
Enclosure Leakage Current Test
Perform this test to measure current leakage through exposed conductive
surfaces on the device under test during normal operation.
1. Configure the leakage tester like the circuit shown below with GND
switch OPEN and polarity switch NORM.
2. Connect probe to an unpainted, non-anodized chassis ground on the
unit under test (Equipotential lug).
3. Set the power switch of the device to ON.
4. Read the current leakage indicated on DMM.
NOTE
Center-tapped and non-center-tapped supply circuits produce
different leakage currents and the UL and IEC limits are
different.
5. Set the polarity switch to RVS.
6. Read the current leakage indicated on DMM.
NOTE
If either reading is greater than the appropriate specification
below, the device under test fails. Contact GE Medical Systems
Information Technologies
Technical Support.
•
300 µA (0.3 volts on the DMM), and the device under test is powered from
100-120 V/50-60 Hz
•
300 µA (0.3 volts on the DMM), and the device under test is powered from
a centered-tapped 200-240 V/50-60 Hz, single phase circuit
•
500 µA (0.5 volts on the DMM), and the device under test is powered from
a non-center-tapped, 200-240 V/50-60 Hz, single-phase circuit
7. Set the GND switch on the leakage tester to CLOSED.
8. Read the current leakage indicated on DMM.
9. Set the polarity switch to RVS.
Power Cord
Leakage Tester
NORM
RVS
HIGH
LOW
GND
1K
0.15µF
10
Power Cord
Device
Under
Test
DMM set to measure AC voltage
GND
DMM
Closed
Open
Probe to exposed conductive chassis
Summary of Contents for Dash 3000
Page 1: ...Dash 3000 4000 Patient Monitor Service Manual 2023896 023 Revision A ...
Page 11: ...Revision A Dash 3000 4000 Patient Monitor 1 1 2000966 339 1 Introduction ...
Page 12: ...1 2 Dash 3000 4000 Patient Monitor Revision A 2000966 339 For your notes ...
Page 19: ...Revision A Dash 3000 4000 Patient Monitor 2 1 2000966 339 2 Equipment Overview ...
Page 20: ...2 2 Dash 3000 4000 Patient Monitor Revision A 2000966 339 For your notes ...
Page 45: ...Revision A Dash 3000 4000 Patient Monitor 3 1 2000966 339 3 Installation ...
Page 46: ...3 2 Dash 3000 4000 Patient Monitor Revision A 2000966 339 For your notes ...
Page 55: ...Revision A Dash 3000 4000 Patient Monitor 4 1 2000966 339 4 Maintenance ...
Page 56: ...4 2 Dash 3000 4000 Patient Monitor Revision A 2000966 339 For your notes ...
Page 117: ...Revision A Dash 3000 4000 Patient Monitor 5 1 2000966 339 5 Troubleshooting ...
Page 118: ...5 2 Dash 3000 4000 Patient Monitor Revision A 2000966 339 For your notes ...
Page 149: ...Revision A Dash 3000 4000 Patient Monitor 6 1 2000966 339 6 Configuration ...
Page 150: ...6 2 Dash 3000 4000 Patient Monitor Revision A 2000966 339 For your notes ...
Page 173: ...Revision A Dash 3000 4000 Patient Monitor 7 1 2000966 339 7 Calibration ...
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