Instruction Manual

Operator’s Manual
Functional Test
This procedure should be performed to confirm the basic operation of the
probe, or to aid in determining the source of a problem, rather than to verify the
accuracy of the probe. You can perform the Functional Test without removing
the probe covers.
Test Equipment Required
Other than a Teledyne LeCroy oscilloscope, no special test equipment is required
for the functional test.
Test procedure
1. Connect the ADP300 or ADP305 to any vertical channel on the oscilloscope.
2. Select the channel to which the probe is connected.
3. Press the A
UTO ZERO button in the user interface menu.
4. If necessary, adjust the O
FFSET to 0.000 V.
5. Using accessory clips, attach the Red clip to the + CAL out and the Blue clip
to the ground post of the CAL out signal. For oscilloscopes with the CAL
signal on a BNC connector, a BNC-to-Banana adapter (e.g., Pomona model
1296) may be used.
6. Press A
UTOSETUP.
7. Set the sensitivity of the probe to 1 V/div.
8. Set the CAL output to 1 V
p-p
square wave.
9. Verify that the displayed square wave is 1 V
p-p
centered at +0.5 V.
10. Reverse the accessory leads on CAL out and verify that the displayed square
wave is still 1 V, but is now centered at –0.5 V.
11. Change the COUPLING on the user interface menu to Grounded to verify
that the signal disappears and that the trace is still centered on the screen.
12. Verify that the probe attenuation shows X100.
13. Set the V
OLTS/DIV to 100 V.
14. Verify that the probe attenuation now shows X1K.
923079-00 Rev A 21