LeCroy Waverunner2 LT262 Series, Руководство по обслуживанию

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Rev. D Performance Verification 5-1
5. Performance Verification
5.1 Introduction
This chapter contains procedures suitable for determining if the LT584, LT374/372,
LT264/262 and LT354 Digital Storage Oscilloscope performs correctly and as
warranted. They check all the characteristics listed in subsection 5.1.1.
Because they require time and suitable test equipment, you may not need to
perform all of these procedures, depending on what you want to accomplish.
This manual performance verification procedure can be followed to establish a
traceable calibration. It is the calibrating entities’ responsibility to ensure that all
laboratory standards used to perform this procedure are operating within their
specifications and traceable to required standards if a traceable calibration
certificate is to be issued for the Digital Storage Oscilloscope.
5.1.1 List of Tested Characteristics
This subsection lists the characteristics that are tested in terms of quantifiable
performance limits.
•
Input Impedance
•
Leakage Current
•
Noise
•
DC Gain Accuracy
•
Offset Accuracy
•
Bandwidth
•
Trigger Level
•
Smart Trigger
•
Time Base Accuracy
5.1.2 Calibration Cycle
The LT584, LT374/372, LT264/262 and LT354 Digital Storage Oscilloscope
requires periodic verification of performance. Under normal use (2,000 hours of
use per year) and environmental conditions, this instrument should be calibrated
once a year.