5
Introduction
1. Remove the battery pack cover by unscrewing (counter-clockwise) the four screws with a flat or Phillips head
screwdriver (Figure 2). The retaining screws are captured into the battery pack cover and are not removable.
2. If replacing an existing battery pack, remove the Li-Ion battery pack and rubber battery pack cradle. With two
fingers, grasp the battery pack connector and pull the connector straight up to disconnect and remove. Properly
dispose of the old battery pack (See Battery Disposal).
3. Inspect the replacement battery pack and battery pack cradle for damage. Contact YSI technical support if there
is any damage.
4. Correctly align and seat the battery pack cradle and battery pack into the instrument.
5. Align the battery pack connector wire terminals with the three instrument pins, then connect the battery pack
to the instrument. Make sure that the three wire terminal connectors and three instrument pins are correctly
aligned before connecting the battery pack connector. Incorrect installation can damage the battery pack con-
nectors or instrument pins.
6. Install the battery pack cover, then hand tighten the cover screws with a screwdriver. DO NOT use any power
tools. Make sure that the cover sealing surface is correctly aligned and free of any contamination or damage.
NOTICE: The battery cover does NOT need to make a compressed seal. Overtightening the cover screws can
damage the battery cover and the handheld.
1.3
Battery Replacement
Figure 2 Battery replacement
*Color shown for reference
1 Battery pack cover
2 Battery pack
3 Battery pack connector*
4 Instrument pin connectors
5 Battery pack cradle
6 Battery pack cradle installed
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