Major tech MT777 - LoZ AC Voltage Measurement; Resistance Measurement

OFF
V
Hz%
CAP
Ω
Temp
°C°F
600A
AC/DC TRMS
CLAMP METER
WITH DATALOGGER
1000A
CAT III 1000V
CAT IV 600V
CAP
V Hz%
Ω
Temp
COM
AUTO POWER OFF
V
LoZ
ESC
Bluetooth
INRUSH
REL
RANGE
MENU
MODE
2sec.
10:18
m
60.00
Mode Max Menu
0 3 6
Ω
11
4.7. LoZ AC Voltage Measurements
WARNING: Risk of Electrocution. The probe tips may not be long enough
to contact the live parts inside some 240V outlets for appliances because
the contacts are recessed deep in the outlets. As a result, the reading may
show 0 volts when the outlet actually has voltage on it. Make sure the
probe tips are touching the metal contacts inside the outlet before
assuming that no voltage is present.
CAUTION: Do not measure AC voltages if a motor on the circuit is being
switched ON or OFF. Large voltage surges may occur that can damage the
meter.
1. Set the function switch to the VAC LoZ position.
2. Insert the black test lead banana plug into the negative COM jack.
Insert red test lead banana plug into the positive V jack.
3. Read the voltage in the main display.
4.8. Resistance
Measurements
To avoid electric shock,
disconnect power to the unit
under test and discharge all
capacitors before taking any
resistance measurements.
Remove the batteries and
unplug the line cords.
1. Set the function switch to
the Ω CAP position.
2. Insert the black test lead
banana plug into the
negative COM jack. Insert
the red test lead banana
plug into the positive Ω
Jack.
3. Read the resistance in the
display. If the circuit is
open, the display will
indicate “OL”.