Fluke 3563 Guide D'introduction page 43

Getting started with Analysis Vibration Sensor System
NOTE: All six batteries must be replaced within 5 minutes.
How to replace batteries
1. Screw open the housing to access the battery compartments.
2. Use a soft plastic tool to remove the batteries as shown below.
DO NOT pry the batteries sideways as contacts can be damaged.
3. Insert new batteries carefully. Observe polarity.
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