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3 Using the Probe
3.1 Replacing the Batteries
Before using the differential probe for the first time, the batteries
supplied with the device must be inserted in the battery compartment
(unless you are using the power adapter or USB power lead).
WARNING
At the time of inserting or replacing the batteries, the input leads must
not be connected to an item to be tested. Never operate the probe with
the case open.
Slide back the battery cover. If necessary, the old AA batteries can then
be removed and the new ones inserted into the compartment. Always
ensure the batteries are positioned for proper polarity. After inserting
the batteries, close the case. When the batteries are low, the power
indicator will start to flicker and dim.
3.2 Inspection Procedure
1.
Connect the BNC output connector to the vertical input of a
general purposed oscilloscope.
2.
Power on the probe.
3.
Set the oscilloscope input to DC coupling and 1V/div. Center
the trace on the display.
4.
Set the range of the probe to 1/100.
5.
Connect the hook probes to the leads.
6.
Connect the black hook probe to the ground connection on
the oscilloscope and the red hook probe to the test signal on
the oscilloscope (1 kHz for example).
7.
A wave matching the test signal should display on the
screen of the oscilloscope and this means this probe is
working properly.
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7
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