Fluke 1507 User Manual page 20

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Users Manual
4. Connect the probes to the circuit to be measured. The
Tester automatically detects if the circuit is energized.
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The primary display shows ---- until you press the
 button and a valid resistance reading is
obtained.
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The high voltage symbol () along with a primary
display of >30 V warns if voltage greater that
30 V ac or dc is present. If high voltage is
present, the test is inhibited.
5. Press and release  to start the test. During
testing, the secondary display shows the test voltage
applied to the circuit under test. The high voltage
symbol () along with a primary display showing the
resistance in MΩ or GΩ. The  icon appears on the
lower portion of the display until the test is finished.
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When the test is completed, the PI or DAR value is
displayed on the primary display. The circuit under
test will automatically be discharged through the
Tester. If either value used to calculate PI or DAR
was greater than the maximum display range, or the
1-minute value was greater than 5000 MΩ, the
primary display will show .
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When resistance is higher than the maximum
display range, the Tester displays the > symbol
and the maximum resistance for the range.
To interrupt a PI or DAR test before it is
completed, momentarily press . When you
release , the circuit under test will
automatically be discharged through the Tester.
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