Fluke Biomedical 180 - Point-To-Point Measurements; Leakage Current

180
Users Guide
2-14
VV
AA
µAµA
L
E
A
K
A
G
E
- CURRENT- CURRENT
- RESISTANCE- RESISTANCE
- GROUND- GROUND
- CHASSIS- CHASSIS
- LEAD -GND- LEAD -GND
- LEAD -LEAD- LEAD -LEAD
- LEAD ISO- LEAD ISO
- DUAL- DUAL
- LINE VOLTS- LINE VOLTS
- CURRENT- CURRENT
- RESISTANCE- RESISTANCE
- GROUND- GROUND
- CHASSIS- CHASSIS
- LEAD -GND- LEAD -GND
- LEAD -LEAD- LEAD -LEAD
- LEAD ISO- LEAD ISO
- DUAL- DUAL
fat10.eps
3. Test individual leads, selecting by the LEAD switch.
4. To apply the high voltage to the lead safely, press the LIFT
GROUND/ISO TEST switch to ISO TEST. The current is limited with a
120 kΩ resistor for user protection.
5. While ISO TEST is energized, read the isolation current in
microamperes.
6. Perform the test using the OUTLET switch in both NORMAL and
REVERSE, the NEUTRAL switch CLOSED, and with the DUT ON
and OFF.
Point-to-Point Measurements
The Analyzer provides the capability of making point-to-point leakage current,
isolation current, and resistance measurements between selected points,
otherwise known as a dual lead measurement.
Note
Additional optional accessory cables must be purchased to perform
these tests.
Leakage Current
Leakage Current between two points is also measured for permanently
installed equipment as additional verification of the integrity of the installation.
These measurements are equivalent, as the relationship between volts and
current across 1,000 Ω is one mV per μA.
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