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2202016000_31-M3691_00_01 105 × 148 mm
www.emos.eu
M3691 | MD-410
GB Digital Multimeter
CZ Digitální multimetr
SK Digitálny multimeter
PL Multimetr cyfrowy
HU Digitális multiméter
SI Digitalni multimeter
RS|HR|BA|ME Digitalni multimetar
DE Digitales Multimeter
UA Цифровий мультиметр
RO Multimetru digital
LT Skaitmeninis multimetras
LV Digitālais multimetrs
EE Digitaalne multimeeter
BG Цифров мултиметър
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GB | Digital Multimeter
Carefully read through this instruction manual before you begin using the MD-410. It contains particularly
important passages concerning occupational safety principles when using the device. Such passages
are highlighted. Reading the manual will prevent potential injury by electric current or damage to the
device. The multimeter was designed in accordance with the IEC-61010 standard regarding electronic
measuring devices in the category (CAT III 300 V), 2nd degree of pollution. The CAT III category is used to
measure circuits powered by a xed output power supply, such as a relay, socket, switchboards, power
supplies and short branching circuits and lighting systems in large buildings.
Warning
Use the MD-410 multimeter only in the manner specied below. Other uses may cause damage to the
device or injury to your health.
Comply with the following instructions:
• Before measuring resistance, diodes or current, disconnect the circuits from the power supply and
discharge high-voltage capacitors. Use the corresponding function for the given measurement.
Before changing the range (of a function) disconnect the conductor from the circuit being measured.
• Make sure the device is not damaged before you begin using the multimeter. If you nd obvious
signs of damage on the body of the device, do not perform any measurements! Check that the
surface of the multimeter does not have scratches and that the side joints are not coming apart.
• Also check the insulation on the measuring probes. Damaged insulation may result in injury by
electric current. Do not use damaged measuring probes!
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• Do not measure voltages above 300 V! If you will be measuring the current, check the multime-
ter's fuse and turn o the power supply to the circuit before you connect the multimeter. Before
measuring make sure the circular switch for the measuring range is in the correct position. Under
no circumstances should you make any changes in the measuring range (by moving the circular
switch for measuring programs) when measuring! It could lead to device damage. When you are
measuring, connect the black conductor (probe) rst and then the red conductor (probe). When
disconnecting the testing conductors, disconnect the red one rst.
• If you nd that the meter is registering abnormal measurements, stop using it. The fuse may be
damaged. If you are unsure of the cause of the defect, contact a service centre.
• Do not measure voltages higher than the one indicated on the front panel of the multimeter. Risk
of injury by electric current or damage to the multimeter!
• Check that the multimeter is working properly before use. Test on a circuit with electrical values you know.
• Before you connect the multimeter to a circuit you intend to measure, turn o the power to the circuit.
• Do not use or store the multimeter in environments with high temperature, dust or humidity. It is
also not recommended to use the device in environments with potentially strong magnetic elds
or risk of explosion or re.
• When changing parts of the multimeter (e.g. the battery or fuse) use spare parts of the same type
and specications. Change parts only when the multimeter is disconnected and turned o. Do
not change the 10 A/300 V fuse by yourself, please contact a service centre. Disconnect the testing
conductors from the tested circuit before opening the rear casing of the device.
• Do not alter or otherwise interfere with the internal circuitry of the multimeter!
• Please be careful when measuring voltages higher than 30 V AC rms, 42 V peak or 60 V DC. There
is a risk of injury resulting from electric shock!
• When using measuring tips, make sure you are holding them behind the nger barriers.
• Do not perform measurements if the multimeter's casing is removed or loose.
• Change the batteries when an icon of a discharged battery appears “ ”. In case you do not do so,
the following measurements may not be precise. Incorrect measurements may then result in injuries
by electric current! Use only alkaline batteries, do not use re-chargeable batteries.
Maintenance Instructions
Warning
Do not attempt to repair or modify the multimeter in any way if you are not qualied to do so or do
not have access to the necessary calibration equipment. Make sure that water does not get into the
multimeter – you could prevent injury by electric current!
• Disconnect the measuring tips from the tested circuit before opening the casing of the multimeter.
• Regularly clean the body of the multimeter with a moist cloth and a mild detergent. Perform cleaning
only when the multimeter is disconnected and turned o.
• Do not use solvents or abrasive agents for cleaning!
• If you haven't been using the multimeter for a longer period of time, turn it o and remove the batteries.
• Do not store the multimeter in places with high humidity and temperature or in environments
with strong magnetic elds!
Changing batteries
When the " " symbol appears on the display, this means the battery is low and must be immediately
changed.
To replace the batteries, unfasten the screw at the rear of the casing and remove the casing. Change
the discharged battery for a new one of the same type (9 V, 6F22 type or equivalent) and adhere to the
correct polarity of the placed battery. Replace the rear casing.
Electrical Symbols
Alternating current (AC)
Direct current (DC)
Alternating current and direct current (AC/DC)
Warning symbol, hazard. Pay particular attention to sections of the manual marked with this symbol.
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Risk of injury by electric current
Fuse
Earthing
Double insulation
The product complies with the applicable EU standards
Device description
MD-410 is a compact 3 ½ numerical digital multimeter with a manual measuring range of DC and AC
voltage, DC and AC current, contactless detection of AC voltage, resistance, continuity and diode testing.
(see Fig. 1)
1 – Screen
2 – Button for changing between measuring alternating or direct voltage/current
3 – Button for contactless alternating voltage detection
4 – Button " " for display backlight
5 – Circular switch for measuring range/choosing the required function
6 – "10 A" socket – for the end of the red (positive) measuring conductor with the tip for measuring
currents in a range of 10 A AC/DC
7 – "COM" socket – for the end of the red (positive) measuring conductor with a tip
8 – "VΩmA °C" socket – for the end of the red (positive) measuring conductor with a tip for measuring
voltage, resistance, diodes, continuity, temperature and current up to 200 mA.
9 – Button for activating the ashlight
10 – LED diode signalizing the AC voltage in the contactless detection mode
11 – button – DATA HOLD function
12 – protective case
13 – ashlight's LED diode
Technical Information
Screen: 3 ½ digit LCD with a maximum displayable value of 1999
Negative polarity indication: " - " will automatically appear on the display
Overload indication: " OL " or will appear on the display
Reading frequency: approximately 2× to 3× per second
Temperature measurement range: 0 °C up to 1 000 °C (0 °C to 250 °C with the temperature probe attached)
Power supply: 1× 9 V battery, 6F22 type or equivalent
Operating temperature: 0 °C to 40 °C, relative humidity < 75 %
Storage temperature: -10 °C to 50 °C, relative humidity < 85 %
Dimensions: 170 × 86 × 40 mm
Weight: 290 g including battery
Measurement Accuracy
Accuracy is specied for the duration of one year after calibration and only at temperatures between
18 °C and 28 °C and air humidity up to 75 %.
Accuracy specications are:
± [(% of reading) + (lowest valid digits)]
DC Voltage
Range Resolution Accuracy
200 mV 100 µV ± (0.5 % + 5)
2 V 1 mV
± (0.8 % + 5)20 V 10 mV
200 V 100 mV
300 V 1 V ± (1 % + 5)
Input impedance: 10 MΩ
Maximum input voltage: 300 V DC
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AC Voltage
Range Resolution Accuracy
200 mV 100 µV ± (1 % + 5)
2 V 1 mV
± (1.2 % + 5)
20 V 10 mV
200 V 100 mV
300 V 1 V
Frequency range: 40 Hz to 400 Hz
Maximum input voltage: 300 V AC
Response: average value, corresponding to a calibrated eective value of a sine wave.
Direct current (DC)
Range Resolution Accuracy
20 mA 10 µA ± (1 % + 5)
200 mA 100 µA ± (1.5 % + 5)
10 A 10 mA ± (2 % + 5)
Protection against overload:
range μA a mA: fuse 250 mA/300 V, type F, Ø 5 × 20 mm.
range 10 A: fuse 10 A/300 V, type F, Ø 5 × 20 mm.
Maximum input voltage: "VΩmA" socket max 200 mA; "10 A" socket max 10 A (when measuring
currents larger than 2 A; the measuring duration can be max. 10 seconds and measuring may be repeated
again only after 15 minutes)
Alternating current (AC)
Range Resolution Accuracy
20 mA 10 µA ± (1.3 % + 5)
200 mA 100 µA ± (1.8 % + 5)
10 A 10 mA ± (3 % + 5)
Protection against overload:
μA and mA range: fuse 250 mA/300 V, type F, Ø 5 × 20 mm.
10 A range: fuse 10 A/300 V, type F, Ø 5 × 20 mm.
Maximum input current: "VΩmA" socket max. 200 mA; "10 A" socket max. 10 A (when measuring
currents larger than 2 A; the measuring duration must be max. 10 seconds and measuring may be
repeated again only after 15 minutes)
Frequency range: 40 Hz to 400 Hz
Response: average value, corresponding to a calibrated eective value of a sine wave.
Resistance
Range Resolution Accuracy
200 Ω 0.1 Ω
± (1.2 % + 5)
2 kΩ 1 Ω
20 kΩ 10 Ω
200 kΩ 100 Ω
2M Ω 1 kΩ
20 MΩ 10 kΩ ± (1.5 % + 7)
Voltage of an open circuit: 2.8 V