Instruction manual

16
Preparations
This section describes the steps which are necessary before starting a measurement.
Be sure to set the power switch to OFF before inserting or removing batteries and
connecting or disconnecting any cables.
Backup Battery
The backup battery (CR-1/3N, lithium) serves to maintain settings and data stored in
memory also while the unit is turned off. In normal use, a backup battery should always be
inserted. Proceed as described below.
1. Remove the cover of the battery compartment on the rear of the unit by pressing the
latch in the arrow direction and lifting the cover up.
2. Insert the backup battery (CR-1/3N, lithium), with polarity as indicated in the com-
partment.
3. Replace the cover.