Teledyne LeCroy CP500 - Manual (Page 21)

Instruction Manual
922176-00 Rev A 15
Adjust LF Accuracy
Figure 4. LF accuracy adjustment set up.
1. Set the Function Generator to 50 Hz, sinewave output at 1.7 Vrms with 50 Ω output.
2. Connect BNC male of ProBus extension to DMM #1 using BNC Female to Dual Banana adapter.
3. Using banana patch cords, connect the 'V Source' and 'V Return' terminals of the 500 Turn
Calibration Loop, to the output of the Function Generator using the BNC to Dual Banana Plug
Adapter output. (Refer to Figure 4.)
4. Connect the Current Sense terminals of the 100 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 lever returned to the LOCKED position,
degauss the probe by touching DEGAUSS (on the CP500 dialog), then OK.
7. Open the CP500 jaws and position the probe input around the 500 Turn loop. Close and LOCK
the lever.
8. Adjust the Function Generator voltage until the voltage measured at the 'Current Sense'
terminals (DMM #2) is 500 mV ± 0.05 mV. (This corresponds to 500 A at the probe head).