DMT2004 - Multimeter Monacor - Free user manual and instructions

Product type	Digital multimeter
Brand	Monacor
Model	DMT2004
Display	LCD 3 ½ digits, 21 mm height
DC voltage measurement	200 mV to 600 V, 5 ranges
AC voltage measurement	200 V and 600 V, 2 ranges
DC current measurement	2000 μA to 10 A, 4 ranges
Resistance measurement	200 Ω to 2 MΩ, 5 ranges
Continuity test	Yes, with buzzer (threshold < 20 Ω)
Diode test	Yes, displays forward voltage up to 1.999 V
Battery test	1.5 V and 9 V
HOLD function	Yes, holds displayed value
Display backlight	Yes, press button to activate
Measurement category	CAT III 250 V
Fuses	F 200 mAL/250 V (up to 200 mA) and F 10 AL/250 V (200 mA to 10 A)
Power supply	1 9V battery (not included)
Dimensions	68 × 138 × 37 mm
Weight	200 g
Operating temperature	0 °C to 50 °C
Relative humidity	< 70%
Maintenance and cleaning	Dry soft cloth, no chemicals or water
Safety	Do not use if damaged, replace fuses with same type, caution voltages > 42 V
Spare parts and repairability	Fuses and battery replaceable; other repairs by qualified technician

Frequently Asked Questions - DMT2004 Monacor

How to turn on the DMT2004 multimeter?

Turn the rotary selector from OFF to the desired function. The display turns on. If nothing appears, replace the battery.

How to connect the test leads?

Plug the black lead into the COM (common) jack and the red lead into the V Ω mA jack for most measurements. For currents >200 mA up to 10 A, plug the red lead into the 10A jack.

Why does the display show '1'?

Display 1 indicates an overload of the measurement range. Select a higher range or check that the probes are making good contact.

How to measure DC voltage?

Turn the selector to a V_DC range (200 mV to 600 V). Place the probes in parallel across the circuit. If the red probe is on the negative side, a minus sign appears.

How to test continuity of a circuit?

Turn the selector to the ➤ (diode/continuity) position. Place the probes at the ends of the circuit. If the resistance is < 20 Ω, a buzzer sounds.

How to test a diode?

Select the ➤ position. Place the black probe on the cathode and the red probe on the anode. The display shows the forward voltage (up to 1.999 V). A '1' display indicates an open circuit or reversed polarity.

What to do if the low battery symbol appears?

Replace the 9V battery. Open the back cover after removing the leads. Replace the used battery with a new one, observing polarity.

How to replace a fuse?

Disconnect the leads, open the back cover. Replace the defective fuse with a fuse of the same type: F 200 mAL/250 V or F 10 AL/250 V depending on the range.

Can I measure voltages above 250 V?

No, the maximum voltage is 250 V AC or DC. Never exceed this limit, danger of death.

How to clean the multimeter?

Use a dry soft cloth. Do not use chemicals, solvents, or water. Never clean the inside.

USER MANUAL DMT2004 Monacor

Digitalmultimeter Digital Multimeter

MONACOR WWW.MONACOR.COM

12.00 HOLD MONACOR VCC 200 600 400 V 200 200 200 200 200 200 200 200 200 Ω 75k 3.5V DMT2004 200 200 100 RATT 1mA COM VQ mA

DMT-2004

English ...... Page 12

Français....Page 20

Italiano ...... Pagina 28

These instructions are intended for persons with basic electrical knowledge. Please read the instructions carefully prior to operation and keep them for later reference.

Contents

1 Operating Elements and Connections ..... 12
2 Safety Notes 13
3 Applications 14
4 Operation 14
4.1 Connecting the test leads. 14
5 Measuring 15
5.1 Measuring voltages ..... 15
5.2 Measuring DC currents 16
5.3 Measuring resistances. 16
5.4 Testing the continuity. 16
5.5 Testing diodes ..... 17
5.6 Testing batteries 17
5.7 Data hold function 17
5.8 Activating the display illumination ..... 17
6 Replacing the Battery or the Fuses ..... 18
7 Specifications 18

All operating elements and connections described can be found on page 2.

1 Operating Elements and Connections

1 LC display
2 Button "HOLD" to hold a measured value
3 Button 📷 to activate /deactivate the display illumination
4 Selector switch for the measuring functions
5 Jack "10A" for the red test lead for measuring DC currents exceeding 200 mA to 10 A max.
6 Jack "V Ω mA" for the red test lead for all measurements, except for measuring DC currents exceeding 200 mA to 10 A max.
7 Jack "COM" for the black test lead

2 Safety Notes

The meter corresponds to all required directives of the EU and is therefore marked with €€

The meter corresponds to the relevant UK legislation and is therefore marked with UKCA.

WARNING: With this meter, dangerous voltages can be measured. Particular attention should be paid when measuring voltages equal to or higher than 42 V!

1. Wear protective gloves to protect yourself against electric shock.
2. When applying the test tips, make sure that your fingers will be protected behind the collars of the tips.
3. Never perform any measurements when the meter or the test leads are damaged. Always replace damaged test leads by original test leads.

Please observe the following items in any case:

• The device is suitable for indoor use only. Protect it against dripping water and splash water, high air humidity and heat (admissible ambient temperature range 0–50°C).
• For cleaning only use a dry, soft cloth; never use water or chemicals.
• No guarantee claims for the device and no liability for any resulting personal damage or material damage will be accepted if the relevant safety regulations for handling voltages equal to or higher than 42 V are not observed, if the meter is used for other purposes than originally intended, if it is not correctly connected or operated, if it is overloaded or not repaired in an expert way.

If the device is to be put out of operation definitively, dispose of the device in accordance with local regulations.

3 Applications

This digital multimeter DMT-2004 is suited for measuring voltages up to =\~/\~ 250 V, currents up to= 10 A and resistances up to 2 MΩ. Furthermore, it will test diodes and batteries. A buzzer is provided for testing the continuity.

4 Operation

1) Caution labels in eight languages are supplied with the meter. Attach the corresponding label in your language (see figure on the right) to the field provided on the housing cover on the rear side of the meter!
2) To switch on the meter, set the selector switch (4) from the position "OFF" to the desired function. An indication will appear on the display (1). If the display remains dark or if the symbol 📄 appears, insert a new battery ➕ chapter 6.

3) To provide a more comfortable reading position, unfold the tilt stand on the rear side of the meter.

4) Always switch off the meter after operation (set the selector switch to "OFF") to prevent unnecessary battery consumption. If the meter is not used for a longer period, it is recommended to remove the battery to prevent any damage due to battery leakage.

4.1 Connecting the test leads

The meter is provided with three test jacks:

1. The jack "COM" (7) in the middle is the common (−) jack for all measurements. Connect the black test lead to this jack.
2. The jack "V Ω mA" (6) on the right is the common (+) jack for all measurements, except for measuring currents exceeding 200 mA. Connect the red test lead to this jack.
3. For measuring currents exceeding 200 mA, connect the red test lead to the jack "10A" (5) on the left.

For measuring, remove the protective caps from the test tips and replace them after use.

ATTENTION!

To prevent the danger of an electric shock, the probe tips must be removed from the connecting jacks and the measuring spots prior to opening the housing.

Fuses are inserted to protect against overvoltage and fire hazard. Faulty fuses must only be replaced by fuses of the same type!

F 10 Al/250 V F 200 mAl/250 V

Power supply: 1 x 9 V battery

5 Measuring

WARNING: Measurements in circuits carrying more than 42 V must only be made by persons able to recognize a hazard of contact and to take the required safety precautions. In case of measurements with a hazard of contact, avoid working on your own. Ask a second person to assist.

Caution: Before switching over to another measuring function, always remove the test tips from the object to be measured to prevent damage to the meter!

With unknown voltage values or current values, start with the highest measuring range to prevent overload of the meter. Then select the smallest possible measuring range (e.g. to measure = 15 V, use the range "20 VDC" instead of the range "200 VDC") to obtain a high accuracy. If a measuring range is exceeded, "1" will be displayed. In this case, select the next higher range.

5.1 Measuring voltages

WARNING: Take into account unexpected voltages on objects to be measured. Capacitors, for example, may be dangerously charged even if the voltage source has been switched off.

• Never use this meter for measuring circuits with corona discharges (high voltage). Danger to life!
• The maximum voltage to be measured must not exceed ==/\~ 250V, otherwise you will risk your life!

Caution: When measuring voltages, do not connect the red test lead to the jack "10A" (5), otherwise the meter and the object to be measured may be damaged!

For measuring AC voltages, set the switch (4) to one of the two ranges "VAC"; for measuring DC voltages, set it to one of the five ranges "VDC". Apply the test tips to the object to be measured and read the value on the display. If the red test tip is applied to the negative pole and the black tip to the positive pole when measuring DC voltages, there will be a minus sign in front of the value displayed.

5.2 Measuring DC currents

• The current to be measured must not exceed 10 A!
• Currents between 200 mA and 10 A must not be measured for more than 30 seconds. There must be an interval of 15 minutes between the individual measurements, otherwise the meter and the test leads may be damaged!

For measurements up to 200 mA, set the switch (4) to one of the three ranges “ADC”. For measurements exceeding 200 mA to 10 A, connect the red test lead to the jack “10A” (5) and set the switch to the position “10A”. Insert the meter via the test leads into the circuit to be measured and read the measured value on the display. If the red test tip is applied to the negative pole and the black tip to the positive pole, there will be a minus sign in front of the value displayed.

5.3 Measuring resistances

- Never measure a resistor when voltage is applied; always measure it separately, otherwise the measurement will be inaccurate. For this purpose, it may be necessary to solder the resistor out of the circuit.

Set the selector switch (4) to one of the ranges “Ω”. Apply the test tips to the resistor and read the value on the display.

If there is no resistor between the test tips or if the resistor value is ≥ 2 M , “1” will be displayed.

5.4 Testing the continuity

- Never test the continuity when voltage is applied, otherwise the measurement will be inaccurate.

The continuity test will check the current flow for interruption. Set the selector switch (4) to the position ▶ Apply the test tips to the measuring points. The resistance value (up to 1999 Ω) will be displayed. If it is smaller than 20 Ω approx., the internal buzzer will sound.

If the circuit is open, "1" will be displayed.

5.5 Testing diodes

- Never measure a diode when voltage is applied; always measure it separately, otherwise the measurement will be inaccurate. For this purpose, it may be necessary to solder the diode out of the circuit.

Set the selector switch (4) to the position Apply the black test tip to the cathode of the diode and the red test tip to the anode. With a measurement current of 1 mA max., the forward voltage up to 1.999 V will be displayed.

If a value around 0 V is displayed, the diode has a short circuit.

If “1” is displayed, the diode is interrupted, connected in reverse direction (reverse the polarity of the diode) or has no contact to the test tips.

5.6 Testing batteries

It will be possible to test 1.5 V and 9 V batteries. According to the battery type, set the switch (4) to the position “1.5V” or “9V”. Apply the black test tip to the negative pole and the red test tip to the positive pole of the battery. The battery voltage will be displayed.

Battery type	Charge status
	high weak low
9 V battery	>8.2 V	7.2 V to 8.2 V	<7.2 V
1.5 V battery	>1.35 V	1.22 V to 1.35 V	<1.22 V

5.7 Data hold function

It will be possible to hold a measured value on the display, e. g. to be able to read the value more easily when the test tips have been removed from the object to be measured. For this purpose, press the button "HOLD" (2). "HOLD" will appear on the display. To return to the present value, deactivate the function with the button "HOLD" ("HOLD" will disappear).

5.8 Activating the display illumination

To activate the display illumination, press the button ⚙ (3). To deactivate it, press the button once again.

6 Replacing the Battery or the Fuses

A If nothing is displayed or if the symbol = low battery is displayed, insert a new 9 V battery.
B If it is not possible to measure currents, check the internal fuses and have them replaced by skilled personnel.

You will find the battery compartment and the fuse holders under the housing cover on the rear side of the meter.

WARNING: Before opening the housing, remove the test tips from the measuring points and the test leads from the jacks on the meter, otherwise you will risk an electric shock. Never operate the meter when it is open.

1) Fold up the tilt stand, release the two screws of the housing cover, then remove the cover.
2) To replace the battery, remove the old battery, connect the battery contacts to the new battery and insert it into the compartment.

Never put batteries in the household waste. Always dispose of the batteries in accordance with local regulations.

Always replace a defective fuse by one of the same type (see Specifications).

3) Fasten the screws of the cover again before setting the meter into operation.

7 Specifications

Display: 3 12 digits, 21 mm LCD

Measuring rate: ..... 2 measurements per second

Measuring category: ... CAT III 250 V

Voltage measurement:. . ==/\~ 250 V max.,

200 mV range: overload protection == /\~ 200V

Fuses

up to 200 mA: ..... F 200mAL/250V

200mA to 10A:..... F 10AL/250V

Resistance measurement/

continuity test ..... Overload protection== /\~ 250 V for 15 s max.

Input resistance:....>1 MΩ

Frequency range VAC: . . . 45–450 Hz

Diode test: ..... display of the forward voltage up to 1.999 V, measurement current 1 mA max., max. measurement voltage 2.8 V approx.

Continuity buzzer: ..... response threshold < 20 Ω approx.

Battery test: .... test current 6 mA (9 V battery) or 100 mA (1.5 V battery)

Operating conditions: .. 0–50°C, relative humidity < 70%

Power supply: ..... 9 V battery (not supplied)

Dimensions, weight: ... 68 × 138 × 37 mm, 200 g

Measuring ranges

Range		Resolution	Accuracy Range			Resolution	Accuracy
V_DC	200 mV	0.1 mV	0±(0.5% + 2 digits)	Ω	200Ω	0.1 Ω	±(0.8% + 2 digits)
	2000 mV	1 mV 200			Ω	1 Ω
	20V0.01 V	20 k			Ω	0.01 kΩ
	200V0.1 V		±(0.8% + 2 digits)		200 kΩ	0.1 kΩ
	600 V 1 V	2000 k			Ω	1 kΩ	±(1.0% + 2 digits)
V_AC	200V0.1 V		±(1.2% + 10 digits)50μA 60Hz	A_DC	2000 μA	1 μA	±(1.0% + 2 digits)
	600 V 1 V	20 mA
BAT T.	9V	10 mV	±(1.0% + 2 digits)		200 mA	100 μA	±(1.2% + 2 digits)
	1.5V	1 mV		10A		10 mA	±(2.0% + 2 digits)

Subject to technical modification.

All rights reserved by MONACOR® INTERNATIONAL GmbH & Co. KG. No part of this instruction manual may be reproduced in any form or by any means for any commercial use.

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