Teledyne LeCroy HFP1500 - Manual (Page 36)

HFP1500 High Frequency Probe
30 922252-00 Rev A
21. Record the calculated error to two decimal places (±0.xx %) as ’Gain Error, mid range’ in the
Test record.
22. Verify that the mid range gain error is less than ±1.0%
This completes the Performance Verification of the HFP1500. Complete and file the Test Record, as
required to support your internal calibration procedure.Apply suitable calibration label to the
HFP1500 housing as required.
Adjustment Procedure
You can use this procedure to adjust the HFP1500 probe to meet the warranted specifications. This
procedure should only be performed if the probe fails to meet the Performance verification tests for
Output Zero or Offset Accuracy.
Gain which affects LF attenuation accuracy cannot be adjusted during routine calibration. Probes
which fail LF frequency accuracy during performance verification must be returned to the factory for
rework.
If the probe cannot be adjusted to meet the Performance verification limits, repair may be
necessary:

To assure probe accuracy, check the calibration of the HFP1500 every 1000 hours or once a
year if used infrequently. Before calibration, thoroughly clean and inspect the probe as
outlined in the Care and Maintenance section.

To assure the probe will meet the published specifications over the entire temperature
range, adjustment must be performed in a controlled ambient environment with
temperature of 23 °C ±5 °C.
CAUTION: The adjustment procedure will require removal of the probe control circuit cover. This
cover is part of the ESD protection system of the HFP1500. To protect the probe, you should
perform the entire procedure on a static dissipating work surface. Wear an antistatic wrist strap and
follow standard static control procedures.