Teledyne LeCroy HFP2500 - Manual (Page 41)

Operator’s Manual
922253-00 Rev A 35
6. Using the DMM to monitor the voltage, adjust the power supply to an output of 10.00 V ±10
mV. Record the reading.
7. Remove the banana plug adapter from the DMM connect the precision 50 Ω terminator into
the DMM Input. Make sure the side of the banana plug corresponding to the BNC shield
(marked ’GROUND’) is connected to the LO or COMMON input of the DMM.
8. Verify that the display for channel 1 is turned on. Set the oscilloscope OFFSET knob to –
10.00 V. as read on the oscilloscope screen.
9. Set the DMM to read DC Volt on the most sensitive range.
10. Subtract 10.0 V from the power supply output voltage recorded in step B-7. Be sure to keep
track of the sign of the result.
11. Adjust OFFSET RANGE until the DMM reads the same voltage ±1 mV as calculated in step B-
11. Be sure the sign agrees.
12. Repeat steps A-3 through A-7 of the Adjust Offset Zero procedure.
13. Disconnect the probe from the ProBus extender and re-install the circuit board into the
probe case, being careful to align the ProBus interface connector with the opening on the
other end of the case.
Verify Calibration
Repeat the Performance Verification procedure to ensure compliance with the warranted
specifications.
Apply a calibration sticker, if required, in accordance with your quality control procedures.