19
voltage is greater than 750V, the DC When the voltage is
higher than 1000V and the AC / DC current is greater
than 20A, the buzzer will continue to sound as over-range
warning. The buzzer will continuously emit 5 sounds
about 1 minute before the auto-off and the buzzer will
give a long sound warning; When the auto power off
function is canceled, the buzzer will be issued five
consecutive warnings every 5 minutes.
4.6
Measurement Preparation
1) Turn the switch to turn on the power. If the battery
voltage is low (about
≤
7.5V), the monitor
Show “
” symbol, then you should replace the battery.
2
）
“
” symbol indicate that the input voltage or current
should not exceed the indicated value, which is to protect
the internal circuit from damage.
3) Set the switch to the desired measurement function and
range.
4) When wiring, first to connect the public test line, then
connect the live test line. Remove the wiring should first
remove the power of the test line.
4.7 AC & DC voltage measurements
Warning
Risk of electric shock
Pay special attention to avoid electric shock
when measuring high voltage.
Do not enter voltages above 1000V DC or 750V
rms to prevent electric shock or damage to the
