The TPQ-108 uses one CR2032 Lithium battery that
comes pre-installed. The battery should be changed
when the screen contrast is too light even after
adjustment. Please have a small Phillips screwdriver
at hand before you follow the steps below.
1. Turn the unit off and turn it over.
2. Unscrew the back cover and slide it off in the
indicated direction.
3. Install a new battery, with its plus sign (+)
facing you.
4. Replace the back cover.
Important Notes
• Different types of batteries or new and used bat-
teries are not to be mixed.
• Only batteries of the same or equivalent type as
recommended are to be used.
• Batteries are to be inserted with the correct
polarity.
• Exhausted batteries should be removed.
• The supply terminals are not to be short-circuited.
17
About the Batteries
