MX-25306 - Multimeter Maxwell - Free user manual and instructions

Product Type	Digital Multimeter
Brand	Maxwell
Model	MX-25306
Display	LCD, 2000 counts
AC Voltage Range	0–600V
DC Voltage Range	0–600V
AC Current Range	0–10A
DC Current Range	0–10A
Resistance Range	0–20MΩ
Capacitance Range	0–200µF
Diode Test	Yes
Continuity Buzzer	Yes
Data Hold	Yes
Backlight	Yes
Auto Ranging	Manual
Power Supply	9V battery (included)
Dimensions (L×W×H)	150 × 70 × 30 mm
Weight	200 g
Safety Rating	CAT II 600V
Accessories Included	Test leads, manual, 9V battery
Maintenance	Clean with dry cloth; avoid moisture and extreme temperatures
Spare Parts Availability	Replacement test leads available

Frequently Asked Questions - MX-25306 Maxwell

How do I measure AC voltage?

Set the rotary switch to the AC voltage range (V~). Insert the black lead into COM and red lead into VΩmA. Connect probes to the circuit. Read the value on the display.

What does the continuity buzzer do?

The continuity buzzer sounds when the resistance between the probes is less than about 30Ω, indicating a closed circuit. Useful for checking fuses, wires, and connections.

How do I replace the battery?

Turn off the meter and remove the test leads. Open the battery compartment on the back using a screwdriver. Replace the 9V battery with a new one, observing polarity. Close the compartment.

Can I measure current without breaking the circuit?

No, to measure current you must break the circuit and insert the meter in series. For safety, never connect the probes across a voltage source when in current mode.

What is the maximum input voltage?

The maximum input voltage is 600V AC or DC. Exceeding this may damage the meter and pose a safety hazard.

How do I measure resistance?

Turn off power to the circuit. Set the rotary switch to Ω. Connect the black lead to COM and red lead to VΩmA. Touch probes to the resistor or component. Read the resistance.

What does the 'Hold' button do?

The Data Hold function freezes the current reading on the display, allowing you to examine it safely after removing the probes.

Is the multimeter autoranging?

No, the MX-25306 is a manual ranging multimeter. You need to select the appropriate range for accurate measurement. If the reading shows '1.', the range is too low — switch to a higher range.

Can I test a diode?

Yes, set the rotary switch to the diode symbol (→+). Connect the black lead to COM and red lead to VΩmA. Touch the red lead to the anode and black to the cathode. A forward voltage drop around 0.5V–0.8V indicates a good diode.

How do I clean the multimeter?

Use a soft, dry cloth to wipe the casing and display. Do not use any solvents or abrasive cleaners. Keep the meter away from moisture and dust.

USER MANUAL MX-25306 Maxwell

Product code / Produkt code / Termékkód / Cod produs / Kód produkta:

25306

SAFETY INFORMATION

This device was designed according to the IEC1010 standard (safety standard by the International Electrotechnical Commission). Please read the following safety information before use:

values than 1000V DC or 750V AC.

the grounding, connection and insulation before measuring above 36V DC or 25V AC to avoid electric shock.

selecting the function or measuring range.

but you need to be cautious as well for your own safety.

current.

GENERAL CHARACTERISTICS

DisplayLCD
	1999 (3 1⁄2) digit, automatic polarity display
	dual integral A/D conversion
rate	appr. 3 /second
value	indicated by the highest number:,, OL"
environment	(0 ~ 40) °C, relative humidity: <80%
Dimensions189mm x 97mm x 35mm
Weightappr. 400g
Accuracy±(% x read data + number)
temperature	(23 ± 5) °C, relative humidity: <75%

TECHNICAL INDEX
DCV

RangeAccuracyResolution
200mV ±(0,5%+3) 100μV
2V ±(0,5%+3) 1mV
20V ±(0,5%+3) 10mV
200V	±(0,5%+3) 100mV
1000V	±(1,0%+5)	1V

protection	250V DC or AC peak value200mV1000V DC or AC peak value

ACV

RangeAccuracyResolution
200mV ±(1,2%+3) 100μV
2V ±(0,8%+5) 1mV
20V ±(0,8%+5) 10mV
200V	±(0,8%+5) 100mV
750V	±(1,2%+5)	1V

protection	250V DC or AC peak value200mV1000V DC or AC peak value
range	40~400Hz under the 200V range, 40~100Hz in the 750V range

DCA

RangeAccuracy	Resolution
2mA	±(0,8%+3)	1μA
20mA ±(0,8%+3)	10μA
200mA ±(1,2%+4)	100μA
20A	±(2,0%+5)	10A

	20A (for no longer than 10 seconds)
protection	0.2A / 250V fuse for under 200mA range 12A / 250V fuse for the 20A range
range	40~200 Hz

Resistance

RangeAccuracyResolution
200 Ω ±(0,8%+5) 0.1 Ω
2k Ω ±(0,8%+3) 1 Ω
20k Ω ±(0,8%+3) 10 Ω
200k Ω ±(0,8%+3) 100 Ω
2M Ω ±(0,8%+3) 1k Ω
20M Ω ±(1,0%+15) 10k Ω
200M Ω	±[1,0%(reading-10)+20]	1M Ω

	value

Note:

Capacity

RangeAccuracyResolution
20nF	±(2,5%+20) 10pF
200nF	±(2,5%+20) 100pF
2μF	±(2,5%+20) 1nF
20μF	±(2,5%+20) 10nF
200μF	±(5,0%+5) 100nF

	3kV DC or AC peak value

RangeAccuracyResolution
2mH ±(2,5%+20)	1uH
20mH ±(2,5%+20)	10uH
200mH	±(2,5%+20)	100uH
2H ±(2,5%+20) 1mH
20H ±(2,5%+20) 10mH

	3kV DC or AC peak value

Range	AccuracyResolution
(-40 ~ 1000) °C	±(1,0%+4)<400 °C±(1,5%+15)>=400 °C	1 °C

Frequency

sensitivity	>3,5 V
protection	250V DC or AC peak value (for less than 10 seconds)

RangeDisplay
hFE NPN or PNP 0 ~ 1000

CONTROLS

measuring the measured value gets held on the screen after the measuring. To return to normal mode press the button again and the PK HOLD sign disappears.

turns on which turns off automatically after 5 seconds.

Note:

and the red one to the V/Hz connector.

the measured voltage is unknown, select the highest available range and move backwards from that until you get the most accurate result.

for DCV and ACV measuring.

touch the wires to the measured spots.

and the red one to the „mA” or „20A” connector.

the range of the current is unknown, select the highest available range and move backwards from that until you get the most accurate result.

position for measuring DC or AC in A mode.

LCD will show the measured result.

Note:

and the red one to the V/Hz/Ω connector.

position and touch the wires to the two end points of the resistor.

Note:

connector of the probe to the „mA” connector on the device, and the red one to the „COM” connector. Touch the probe to the surface of the object you want to measure. The measured value is displayed on the screen, the unit is degrees celsius.

Note:

connect the measuring wires to the „mA” and „COM” connectors.

capacitor. Pay attention to the polarity: „COM“: negative (black), and „mA“: positive (red)

Note:

connectors.

position and connect the wires to the signal source.

Note:

connect the wires to the „mA“ and „COM“ connectors.

the coil.

Note:

and „COM“ connectors. Note the polarity: „COM“ is negative, „mA“ is positive.

PNP) and connect the base, emitter, collector pins to the proper connector.

and the red one to the V/Ω/Hz connector (the red will be the anode).

→ position. Connect

the wires parallelly to the diode, the red to the anode and the black to the cathode. The displayed value is the approximate opening voltage of the diode.

of the circuit, if you hear a beep, the the resistance between the two points is lower than 70 ( ±20 )

measuring temperature and connect the black

appear on the screen, press it again to turn this function off.

it will power off automatically and go into standby mode. Press the „POWER” button twice to turn the device on again.

Backlight

After 5 seconds it will turn off automatically. Note:

MAINTENANCE

resistance of the device.

extreme temperatures, flammability or strong magnetic fields.

detergent, it is forbidden to use strong solvents like alcohol.

period please remove the battery to avoid leakage.

icon

appears on the screen, replace the battery.

container lid and take out the battery holder.

new one. It is recommended to use alkaline batteries for long-term use, but all kinds of 9V batteries can be used.

on.

necessary.

TROUBLESHOOTING

If the device is not working properly you can attempt to solve the problems using the below information. If these are not sufficient, contact a certified service station.

Statelnstructions
Nothing appears on the screen	to the proper state
No power or temperature measurement

SICHERHEITSHINWEISE