Amprobe AC71B Clamp-On-Multimeter - Manual (Page 6)

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Turn ON Options
Press ON/OFF button.
During the start up sequence, the AC7B will go thru a brief self-
testing mode and check the battery capacity.
• Replace the battery when display reads 0%.
• If ‘FAIL’ is displayed, do not use the meter. See
“Troubleshooting”.
• Do not make measurements during the start up and self-test
sequence. This will cause the self-test to fail.
• Disable Auto Power Off (APO) – Press and hold the ON/OFF
button for more than 3 seconds.
• Enable ACA Auto Hold and disable Auto Power Off (APO)
– Press and hold the ON/OFF button for more than 5 seconds.
• The AC7B will automatically turn OFF in 0 min.
Power Off
Press ON/OFF button for > 3 seconds. The display will indicate OFF
before it shuts down.