Amprobe VPC-30 VPC-31 Voltage-Continuity - Manual (Page 13)

7
Audible Continuity Function Refer to Fig.4
Short the two test probes together for continuity function check as described
in Indicator Self-Test section. The continuity LED turns on together with a
continuous beep tone indicates a complete circuit is being detected via the test
probes. Audible-Continuity is convenient for checking wiring connections and
operation of switches.
Auto Power On & Auto Power off (APO)
The tester turns on automatically and is ready for measurement within
1 second (> 7 seconds on ACV “wake-up” measurement) when making
significant measurement or push button activity. Allow this delay on the
“wake-up” measurement. Wake up the tester by shorting the two test probes
together before making ACV measurements can improve the “wake-up”
delay. The meter turns off automatically (APO) to extend battery life after
approximately 25 seconds of no significant measurement or push button
activity.
MAINTENANCE
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WARNING!
To avoid electrical shock, disconnect the tester from any circuit and
remove the test probes from the input jacks before opening the case
and/or the battery access door. Do not use the tester with open case and/
or the battery access door. Do not attempt to repair this unit. It contains
no user-serviceable parts. Unauthorized persons shall not disassemble
the tester.