Replacing Batteries
1. Loosen and remove the 4 screws of the cover plate with a 2.5mm hex key.
Figure 1. Unscrewing the cover.
2. Remove the battery pack from the handle.
Figure 2. Removing the battery pack from the handle.
Installing a Battery Pack
Installing a Battery Pack
1. Remove any dirt or moisture from the instrument and the battery compartment cover.
2. Insert the battery pack into the handle. (Figure 3)
 Observe the orientation notch to find the correct orientation.
Figure 3. Inserting the pack into the handle.
3. Ensure the O-ring is clean, intact, and in the correct position. Replace if necessary (size: 35 mm x 2.5 mm, NBR70 (nitrile rubbery), part number: 900295)4
4. Align the cover plate with the orientation notch facing the lanyard connector.
5. Fasten the screws.