B&K Precision 310 - Manual - Manual (Page 18)

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CLEANING & STORAGE
Periodically wipe the case with a damp cloth and detergent do not
use abrasives or solvents.
If the meter is not to be used for periods of longer than 60 days,
remove the batteries and store them separately.
BATTERY & FUSE REPLACEMENT
l Battery Replacement
• The tester continuously monitors the battery voltage and
indicates when the batteries need to be replaced.
• The tester's battery is situated under the tester.
• Disconnect the test leads from the instrument and remove the
battery cover and the batteries.
• Replace with eight 1.5V AA pen light batteries, taking care to
observe correct polarity.
• Alkaline batteries are recommended.
• Replace battery holder and the battery cover.
l Fuse Replacement
• The fuse is located under the battery holder.
• To replace fuse, open the battery cover. Then remove and
replace the fuse located under the battery holder.
• Only replace with same fuse specification. (250mA)