EZ Digital OS-5060A, Operation Manual

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3. USER MAINTENANCE ROUTINES
Maintenance routines performable by the OS-5060A operator are listed in this section.
More advanced routines (i.e., procedures involving repairs of adjustments within the
instrument) should be referred to EZ service personnel.
3-1. CLEANING
If the outside of the case becomes dirty or stained, carefully wipe the soiled surface
with a rag moistened with detergent, then wipe the cleaned surface with a dry cloth. In
case of severe stain, try a rag moistened with alcohol. Do not use powerful
hydrocarbons such as benezine or paint thinner.
Dust and/or smudges can be removed from the CRT screen, First remove the front
Case and filter (see Figure 3-1). Clean the filter (and the CRT face, if necessary) by
Wiping carefully with a soft cloth or commercial wiping tissue moistened with a mild
cleaning agent. Take care not to scratch them. Do not use abrasive cleanser or strong
solvents. Let the cleaned parts air dry thoroughly before reinstalling the filter and front
case . If installed wet, water rings may form and blur the waveforms. Be particularly
careful not to get fingerprints on the filter or CRT face.
3-2. CALIBRATION INTERVAL
To maintain the accuracy specifications of the OS-5060A, calibration checks and
procedures should be preformed after every 1000 hours of service. However, if the
instrument is used infrequently, the calibration checks should be performed every six
months.
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