User manual

WaveSurfer 3000 Oscilloscopes
Maintenance
Cleaning
Clean only the exterior of the instrument using a soft cloth moistened with water or an alcohol solution. Do
not use harsh chemicals or abrasive elements. Under no circumstances submerge the instrument or allow
moisture to penetrate it. Avoid electric shock by unplugging the power cord from the AC outlet before
cleaning.
CAUTION. Do not attempt to clean internal parts. Refer to qualified service personnel.
Fuse Replacement
Disconnect the power cord before inspecting or replacing the fuse. Open the fuse holder (located at the rear
of the instrument below the AC power inlet) using a small, flat-bladed screwdriver. Replace the old fuse with
a new 5 x 20 mm T-rated 3.15 A/250 V fuse. Close the fuse holder before powering on.
WARNING. For continued fire protection at all line voltages, replace the fuse with one of the
specified type and rating only. Always disconnect the power cord before replacing the fuse.
Calibration
The oscilloscope is calibrated at the factory prior to being shipped. This calibration is run at 23° C (± 2° C)
and is valid for temperatures ± 5° C of the original calibration temperature. Within this temperature range the
oscilloscope will meet all of the specifications.
The oscilloscope will offer you two calibration options whenever the temperature ranges outside this limit:
l Calibrate Allpossible combinations of vertical and horizontal settings at the current temperature. This
calibration is valid for the current temperature ± 5° C and takes about 120minutes.
l Calibrate Current Setting (vertical and horizontal). This calibration is valid for only these settings at the
current temperature ± 5° C and takes under 30 seconds.
CAUTION. It is required that all inputs be removed from the oscilloscope prior to performing
calibration.
Schedule an annual factory calibration as part of your regular maintenance. Contact us about extended
warranty, calibration, and upgrade plans available for purchase.
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