Push this button over 2 seconds to turn
on or turn off the product.
The product automatically powers off
after 15 minutes of inactivity and the
built-in beeper beeps 5 times 1 minute
before auto power off.
To cancel auto power off, push NCV
before turning on the product, after 5
beeps to cancel the auto power off
successfully.
Push once to hold the current reading
on the display;
Push for more than 2 seconds to turn on
the flashlight backlight. And long-push
again to turn off.
Keep pushing this button to enter the
NCV testing mode. In this mode, you
have to continually push the NVC
button. The NCV function cannot be
used when test leads are in the current
terminal.
INSTRUCTION MANUAL
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All rights reserved.
Specifications are subject to change without notice.
Introduction
This product is a battery-powered, auto-ranging,
true RMS digital multimeter with a 4000 counts
LCD display.
Safety Information
To avoid possible electrical shock, fire, or
personal injury, please read all safety information
before you use the product. Please use the
product only as specified, or the protection
supplied by the product can be compromised.
• Examine the condition of the test leads and the
casing before you use the product. Look for
cracks or missing plastic. Carefully look at
the insulation around the terminals & test leads.
• The measurement must be made
within the
allowable measuring range
.
• Do not use the product around explosive gas,
vapor, or in damp or wet environments.
• When the voltage to be measured exceeds 36V
DC or 25V AC, the operator must be careful
to avoid electric shock.
• Misuse of mode or range can lead to hazards,
be cautious. “OL” will be shown on the display
when the input is out of range.
• Low level of a battery will result in incorrect
readings. Change the batteries when battery
level is low. Do not make measurements when
the battery door is not properly closed.
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2 -
Instruction
Buttons
Measurements
Measure DC/AC Voltage (
＞0
.8mV)
1. Only when the voltage is higher than 0.8mV,
this product will show the display.
2. Put the red lead into the terminal, put
the black lead to the COM terminal
.
3. The DC or AC voltage will be auto matched.
4. Touch the probes to the correct test points of
the circuit to measure the voltage.
5. Read the measured voltage on the display.
Measure Resistance
1. Put the red lead into the
terminal, put
the black lead to the COM terminal
.
2. The resistance measure will be auto matched.
3. Touch the probes to the desired test points of
the circuit to measure the resistance.
4. Read the measured resistance on the display.
Test for Continuity
1. Put the red lead into the
terminal, put
the black lead to the COM terminal
2. The continuity measure will be auto matched.
3. Touch the probes to the desired test points of
the circuit.
4. The built-in beeper will beep when the
resistance is lower than 50Ω, which indicates a
short circuit while the central LED light will light .
MTD80
