Hanna Instruments HI 8633 User Manual
Page 16
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When battery becomes weak the meter will display the battery symbol
as empty.
When the low battery indicator appears, the battery has only a few
hours left. A low battery will result in unreliable measurements.
It is recommended to replace the battery immediately.
Battery replacement must only take place in a nonhazardous area
using a 9V alkaline battery.
Unscrew the three screws on the rear of the meter, remove the battery
compartment cover and replace the 9V battery with a new one.
Make sure the battery contacts are tight and secure before replacing
the cover.
BATTERY REPLACEMENT