Hanna Instruments hi 9811 사용자 설명서
11
These meters are powered by a 9V battery that is located on the rear
of the instrument.
When the battery level is so low that it may cause unreliable
measurements, the meter turns off.
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 while
paying attention to its polarity.
of the instrument.
When the battery level is so low that it may cause unreliable
measurements, the meter turns off.
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 while
paying attention to its polarity.
Make sure the battery contacts are tight and secure before replacing
the cover.
the cover.
BATTERY REPLACEMENT