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SDG2000X Service Manual.doc
44
Chapter 3 Calibration
This calibration procedure contains performance verification procedures and
adjustment procedures. After receiving a generator, it is recommended to first
confirm that the performance is related to the specifications. If so, then perform
the appropriate adjustments.
Calibration Interval
The instrument should be calibrated on a regular interval determined by the
measurement accuracy requirements of your application. A 1-year interval is
adequate for most applications. Accuracy specifications will remain valid only if
adjustment is made at regular calibration intervals. Accuracy specifications are
not valid beyond the1-year calibration interval. SIGLENT does not recommend
extending calibration intervals beyond 2 years for any application.
Adjustment is Recommended
Specifications are valid only within the period from the last adjustment.
Whatever calibration interval you select, SIGLENT recommends that
re-adjustment should always be performed within the calibration interval. This
is necessary to ensure the accuracy of the performance data measured during
the calibration interval.
Automating Calibration Procedures
The complete verification and adjust procedures can be automated with the
use of appropriate automated test instrumentation. The complete instrument
configurations specified for each test may be programmed via the remote
interface. Verification data can then be read-back from the instrument into a
test program and compared to the appropriate test limit values.
The instrument can also be adjusted from the remote interface. Remote
adjustment is similar to the local front-panel procedure. A PC can be used to
perform the adjustment by first selecting the required function and range. The
adjustment command is sent to the instrument and then the adjustment is
initiated over the remote interface.
Recommended Test Equipment
The test equipment instrumentation recommended for the performance
verification and adjustment procedures is listed below. If the exact instrument
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