Major tech TRUERMS MTD80 User manual

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
-"3"-" -"4"-"
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.
-"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

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LIMITED WARRANTY
AND LIMITATION OF LIABILITY
Customers enjoy one-year warranty from
the date of purchase. This warranty
does not cover fuses, disposable
batteries, damage from misuse, neglect,
alteration, contamination, or abnormal
conditions of operation or handling, including
failures caused by use outside of the
product's specifications, or normal wear and
tear of mechanical components.
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Test for NCV
1. Keep pushing the NCV button to enter the
NCV mode.
2. Hold the product and move it around, the
built-in beeper will beep when the inner
sensor detects AC voltage nearby. The
stronger the voltage is, the quicker the beeper
beeps while the central LED light will twinkle.
Test for Current
1.
2.
Put the red lead to terminal and put
the black lead to COM terminal. The DC or
AC current will be auto matched.
Touch the probes to the correct test points of
the circuit to measure the current.
3.
4.
5.
Read the measured current on the display
When you input the current over 2 AMP, the
testing time should be less than 3 seconds.
When the probes are in the current terminal
but you have no operations, the meter will
beep each 4 seconds to remind that you are
in the current mode.
Specifications
General Specifications
Display
4000 count
True RMS
√
Ranging Auto/Manual Data Hold √
Material ABS Backlight ×
Update Rate 3 / s Flashlight √
Low Battery
Indication √Auto Power Off √
Environmental Specifications
Operating Temperature 0~40℃
Humidity ＜75%
Storage Temperature -20~60℃
Humidity ＜80%
AC
VOLTAGE
（V）
4.000V 0.001V
±(1.0%+3) 600V
40.00V 0.01V
400.0V 0.1V
600V 1V
AC mA 999.9mA 0.1mA ±(1.0%+3) 9.999A
AC A 9.999A 0.001A
DC mA 999.9mA 0.1mA ±(2.0%+4) 9.999A
DC A 9.999A 0.001A
Resistance
4.000kΩ 0.001kΩ ±(1.5%+3)
40MΩ ±(0.5%+3)
40.00kΩ 0.01kΩ
400.0kΩ 0.1kΩ
4.000MΩ 0.001MΩ
40.00MΩ 0.01MΩ ±(1.5%+3)
Electrical Specifications
Function Range Resolutio
n Accuracy Max
DC
VOLTAGE
（V）
4.000V 0.001V
±(0.5%+3) 600V
40.00V 0.01V
400.0V 0.1V
600V
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Continuity √
NCV √
Frequency response at AC modes： 40Hz ~ 1kHz