MAINTENANCE 
241 
MAINTENANCE 
Two types of maintenance operations are 
available: calibrate vertical accuracy, and 
compensate the probe. Run these operations 
when using the GDS-2000A in a new 
environment. 
 
 
 
How to use SPC function ................................................. 242 
Vertical Accuracy Calibration ........................................... 243 
Probe Compensation ......................................................... 244 
 
 
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