4-28
Dash 3000/4000 Patient Monitor
Revision A
2000966-339
Maintenance:
Electrical Safety Tests
Ground (Earth) Wire Leakage Current Tests
Perform this test to measure current leakage through the ground (earth)
wire of the equipment during normal operation.
1. Configure the leakage tester like the circuit shown below with
normal polarity and NEUTRAL closed.
2. Connect the power cord of the device under test to the power
receptacle on the leakage tester.
3. The device under test is to be tested at its normal operating voltage.
4. Set the power switch of the device under test to ON.
5. Read the current leakage indicated on DMM.
6. Set the polarity switch on the leakage tester to RVS (reverse).
7. 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
NOTE
Center-tapped and non-center-tapped supply circuits produce
different leakage currents and the UL and IEC limits are
different.
8. Repeat steps 1 through 7 with NEUTRAL open.
9. Set the power switch of the device under test to OFF.
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
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 ...
Page 174: ...7 2 Dash 3000 4000 Patient Monitor Revision A 2000966 339 For your notes ...
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