In this appendix:
Introduction .............................................................................. A-1
Line fuse replacement .............................................................. A-1
Upgrading the firmware ............................................................ A-2
Perform DIN VDE 701 test ....................................................... A-4
Cleaning the front-panel display ............................................... A-4
Introduction
The information in this section describes routine maintenance of the instrument that can be performed
by the operator.
Line fuse replacement
A fuse on the Series 2280 rear panel protects the power line input of the instrument. Follow the below
instructions to replace the fuse. You do not need to return your instrument for service if the fuse is
damaged.
Disconnect the line cord at the rear panel and remove all test leads connected to the
instrument before replacing a line fuse. Failure to do so could expose the operator to
hazardous voltages that could result in personal injury or death.
Use only the correct fuse type. Failure to do so could result in injury, death, or instrument
damage.
Choose the right fuse with mechanical characteristics described in the following table.
To replace the fuses, you will need a small flat-bladed screwdriver.
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