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HVD3000 / HVD3000A High-Voltage Differential Probes
Functional Test Procedure
This procedure should be performed to confirm the basic operation of an HVD3000 or
HVD3000A 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.
Other than a Teledyne LeCroy oscilloscope, no special test equipment is required for the
functional test.
1. Connect the probe to any oscilloscope vertical channel and open the Cn dialog.
2. Touch AUTO ZERO on the probe dialog (behind the Cn dialog).
3. If necessary, adjust the OFFSET to 0.000 V.
4. Using accessory clips, attach the red clip to the + CAL out and the black 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.
5. Press AUTOSETUP.
6. Set the sensitivity of the probe to 1 V/Div.
7. Set the CAL output to 1 Vp-p square wave.
8. Verify that the displayed square wave is 1 Vp-p centered at +0.5 V.
9. 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.
10. Change the COUPLING on the channel setup dialog to Grounded to verify that the
signal disappears and that the trace is still centered on the screen.
11. Verify that the probe attenuation shows the following:
• x100 for HVD3102 and HVD3102A
• x50 for HVD3106, HVD3106A, HVD3206, and HVD3206A
• x200 for HVD3605 and HVD3605A
12. Set the VOLTS/DIV to 100 V.
13. Verify that the probe attenuation now shows:
• x1K for HVD3102 and HVD3102A
• x500 for HVD3106, HVD3106A, HVD3206, and HVD3206A
• x2K for HVD3605 and HVD3605A
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