Fluke RF303 Operators, Руководство оператора, Страница: 49 / 70

Operation
Testing the ESU
3
3-13
HF Leakage Current Test 2
The HF leakage test number two is an IEC earth-referenced, BF-type leakage
current test. You perform the test by connecting a 200-ohm resistive test load
from the ESU’s active electrode to earth/ground on the Analyzer. High
frequency leakage current is then measured through a second 200-ohm
resistive load. You can view the resulting measurement on the Analyzer’s
display. See Figure 3-4 for a diagram of this test at the end of this section.
Test Procedures
The procedures involved with this test include:
•
connecting the ESU you want to test to the Analyzer
•
selecting a 200-ohm test load resistance
•
measuring the ESU’s HF leakage current
•
ending the test
To connect the ESU to the Analyzer:
1. Connect the ESU Active electrode to the right gray jack aux HF leakage,
using one of the test leads from the set, Part # 1903307.
2. Connect the ESU Neutral/Dispersive electrode to the left blue jack
dispersive, using test lead Part # 2772171.
3. Connect a jumper between the yellow jack active and the left green jack
ground earth reference, using test lead Part # 2772209.
4. Connect a jumper between the right blue jack dispersive and the left gray
jack aux HF leakage, using test lead Part # 2772209.
5. If operating under battery power, attach a test lead from the set (Part #
1903307) from the battery ground on the side panel to the ground earth
reference.
To select a 200-ohm test load resistance setting:
1. Press the
OHMS SELECT
increase ( + ) or decrease ( - ) buttons repeatedly
until the test load value 200 appears in the display. After approximately
one second, the display returns to a blank screen. Below is an example of
a test load value as it appears in the display.