Fluke Biomedical medTester 5000C - Manual (Page 50)

medTester 5000C
Operators Manual
4-4
•
POLARITY—normal or reversed,
•
NEUTRAL—open or closed.
The respective condition LEDs light, and the display reads the
current leakage in
µA.
This is a test of leakage current for double insulated devices
equipped with a three-conductor power plug. The ground
connection is held open. Internal leakage current flows from the
equipment under test through its ground wire in the power cord
to earth ground.
External Leakage Current
See Figure 4-4, External Leakage Current.
1. Connect the dual banana-plug end of one Kelvin cable to the two
red external meter posts.
2. Connect the dual banana-plug end of the other Kelvin cable to the
two black external meter posts.
3. Connect the alligator-clip end of one Kelvin cable to one of the
points to be measured.
4. Connect the alligator-clip end of the other Kelvin cable to the
other point to be measured.
5. Enter menu commands:
EXT
F3
µA mV
F2
MANUAL
F2
The display reads the current (in µA) flow between the two
points.
ECG Lead Leakage
On the front panel of the medTester 5000C, you see ten ECG binding posts.
These posts let you measure ECG lead leakage current in the following
configurations:
•
All leads to ground,
•
A single lead to ground,
•
Lead to lead,