Isolation lead leakage – Fluke Biomedical medTester 5000C User Manual
Page 49
Biomedical Test System
Manual Tests
4
4-3
External Case Leakage
See Figure 4-2, Case External Leakage.
1.
Plug the EUT (equipment under test) into the test receptacle.
2.
Connect the dual banana-plug end of a Kelvin cable to the two
red external meter posts.
3.
Connect the alligator-clip end of the Kelvin cable to a grounded
point on the case of the equipment under test.
4.
Enter menu commands:
CASEX
F1
µA mV
F2
MANUAL
F2
5.
Select the desired condition:
•
GROUND—closed or open,
•
POLARITY—normal or reversed,
•
NEUTRAL—open or closed.
The respective condition
LEDs
light, and the display reads the
current leakage in
µA.
External leakage current is the current that flows from the case of
the equipment under test to earth ground. The current flowing
from the case directly to ground through an external path is
measured.
Internal Case Leakage
See Figure 4-3, Case Internal Leakage.
1.
Plug the EUT (equipment under test) into the test receptacle.
2.
Enter menu commands:
CASEIN
F2
µA mV
F2
MANUAL
F2
3.
Select the desired condition: