Amprobe LH41A Clamp-On-Ammeter - Manual (Page 10)

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Do not use the instrument if any part of it appears to
be damaged or if a malfunction of the instrument is
suspected.
When using the instrument ensure that your fingers are
behind the protective barrier see Fig. 
Clean the case periodically by wiping it with a damp cloth
and detergent. Do not use abrasive cleaners or solvents.
Do not immerse the instrument in liquids.
BATTERY REPLACEMENT
SAFETY WARNING
Before removing the battery cover,
make sure that the instrument is
removed from any live electrical circuit.
When the Low Battery symbol is illuminated in the
display the minimum operating battery voltage has been
reached. Refer to Fig.. and use the following procedure
to replace the battery.
Unclamp the meter from the conductor, turn it off using
the OFF / Hold power switch. Loosen the captive screw
which secures the battery cover. Lift the cover through
30° and pull it clear of the instrument body as shown in
Fig. The battery is then accessible. Replace the battery
and re-fit the battery cover and fasten the screw.
Replacement with other than the specified type of
battery will invalidate the warranty. Fit only Type 9 V PP3,
Alkaline (MN60 ).