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Check lf accuracy – Teledyne LeCroy CP500 User Manual

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CP500 Current Probe

12

922176-00 Rev A

7. Degauss the probe by touching DEGAUSS (on the CP500 dialog), then OK.

8. Verify that “Degaussing CP500 probe...” is displayed at the top of the screen and no error

message remains displayed.

Check LF Accuracy

Figure 3. LF Accuracy Test set up.

1. Set the Function generator to 50 Hz sine wave. Output voltage at 3 Vrms with 50Ω output.

2. Remove the CP500 from the oscilloscope and reconnect using the ProBus extension cable.

Connect the BNC male connector of the ProBus extension to DMM #1 using a BNC Female to
Dual Banana adapter (Figure 3).

3. Using Banana Patch cords and the BNC to Dual Banana Plug adapter, connect the ’V Source’ and

’V Return’ terminals of the 500 Turn Calibration Loop to the output of the Function Generator.

4. Connect the Current Sense terminals of the 500 Turn Calibration Loop to the voltage inputs of

DMM #2.

5. Set both DMMs to measure AC Volt.

6. With the CP500 removed from any signal and the locking lever returned to the LOCKED position,

degauss the probe by touching DEGAUSS (located on the CP500 dialog), then OK.