UEi Test Instruments DT304 - Manual (Page 17)

Battery Replacement
Always use a fresh replacement battery of the specified size and type.
Immediately remove the old or weak battery from the meter and
dispose of it in accordance with your local disposal regulations. Old or
defective batteries can leak chemicals that corrode electronic circuits.
WARNING!
To avoid electric shock, be sure to turn off the meter’s power and
disconnect thermocouples from any equipment before you remove
or install batteries.
To install a new battery, follow these procedures:
1. Remove the screws from the battery compartment cover on the
back of the meter and lift the cover (Fig 1).
2. Remove and discard the old batteries. Always dispose of old
batteries promptly in a manner consistent with local disposal
regulations.
WARNING!
Under NO circumstance should you expose batteries to extreme heat
or fire as they may explode and cause injury.
3. Place a fresh batteries in the compartment.
NOTE: If you do not plan to use the meter for a month or more,
remove the battery and store it in an area that won’t be damaged by a
leaking battery.
4. Reattach the battery compartment cover to the meter and
reinstall the screws.
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