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2.3 Power Preparation
2.3.1 Installing and Replacing the Batteries
Important Notes:
• To avoid electric shock when replacing the batteries, turn the power switch off and disconnect the
all cables before beginning. Also, after replacing the batteries, always replace the cover before
using the unit.
• When replacing the batteries, do not install old batteries with new ones, and do not mix different
types of batteries. Check the battery polarity carefully when inserting the batteries.
• Do not short-circuit used batteries, disassemble them, or throw them in a fire. Doing so may cause
the batteries to explode.
• Keep used batteries out of the reach of children. Dispose of used batteries according to their type
in the prescribed manner and in the proper location.
• Remove the batteries before storage to prevent possible corrosion caused by battery leakage if the
Shoes and Wrist Strap Tester 747 will not be used for a long period of time.
• When using the AC adapter, remove the batteries from the Shoes and Wrist Strap Tester 747 to
prevent corrosion due to possible electrolyte leakage.
This 3M
™
Shoes and Wrist Strap Tester 747
can be operated from six “AA” alkaline
batteries or the supplied AC adapter. The AC
adapter has priority, so when the batteries are
installed and the adapter is connected, battery
power is not drained.
1. Confirm that the power switch is turned off.
2. Disconnect all cables from the Shoes and
Wrist Strap Tester 747.
3. Remove the battery cover from the rear
panel, and insert six fresh type “AA”
batteries, with careful attention to the
indicated polarity.
4. Replace the battery cover securely.
To reduce the risks associated with hazardous voltage, which, if not avoided, may result in minor or
moderate injury and/or property damage:
• When placing batteries, turn the power switch off an disconnect all the cables before beginning.
• Always replace battery cover before using the 3M
™
Shoes and Wrist Strap Tester 747.
CAUTION