Instruction manual
Page 16
Initializing the recorder
Replacing the Batteries
Caution
When "B" is displayed before a measurement, the recorder cannot make a
measurement. Please replace with new batteries before using.
If "B" is displayed during the measurement, stop the measurement and replace
with new batteries immediately.
Use alkaline batteries or the specified rechargeable batteries for the recorder.
Do not use new and used batteries at the same time.
Steps for replacing the batteries
Step 1 Open the battery cover.
Step 2 Turn off the power switch.
Step 3 Replace with new batteries. (Note the direction, "+" and "-".)
Step 4 Turn on the power switch.
Step 5 Close the battery cover.