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Maxwell Digital Multimeters 25210 User Manual page 3

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Resistance Measurements
Turn the rotary switch to Ω position.
Connect the black test lead to the „COM" terminal, and the
red test lead to the "V" terminal.
Connect the probes to the desired resistance end points of
the circuit.
Read the measured resistance on the display.
Note: If the resistance is lower than about 20MΩ, some se-
conds will be needed for the Meter to measure the resistance
correctly.
If the resistance is more than the maximum measurement
range, the "OL" sign will appear on the display.
Warning: If you do not know the range what you want to
measure, set up the switch to the highest measuring value.
To avoid possible damage to the Meter or electric shock, dis-
connect circuit power and discharge all high-voltage capaci-
tors before measuring resistance.
Continuity Tests
Turn the rotary switch to
Connect the black test lead to the „COM" terminal, and the
red test lead to the "V" terminal.
Connect the probes to the desired test points of the circuit. If
the resistance is under 70Ω, the beeper will sound.
Note: The Continuity Test can be used to test an open or
closed circuit.
Warning: To avoid possible damage to the Meter or electric
shock, disconnect circuit power and discharge all high-volta-
ge capacitors before measuring resistance.
Diode Tests
Turn the rotary switch to
Connect the black test lead to the „COM" terminal, and the
red test lead to the "V" terminal.
Connect the red probe to the anode side and the black test
lead to the cathode side of the diode being tested.
The approx. forward voltage drop of the diode will be disp-
layed. If the connection is reversed, the „OL" sign will appear
on the screen.
Warning: To avoid possible damage to the Meter or electric
shock, disconnect circuit power and discharge all high-volta-
ge capacitors before measuring resistance!
AC or DC Current Measurements
Turn the rotary switch to A position.
Connect the black test lead to the „COM" terminal, and the
red test lead to the "mA" terminal until max. 200mA range, or
to the A terminal to a max. 10A range.
Connect the Meter in series to the circuit.
Read the measured current on the display.. If you measure
DC current continuously, the polarity of the red cable will
also be displayed on the screen (only the negative).
If the „OL" sign appears on the display, and the beeper sounds
continuously, turn the rotary switch to a higher volume.
Warning: If you do not know the range what you want to
measure, set up the switch to the highest measuring value.
Before you use the meter, inspect the test leads. Do not apply
more than the rated voltage, as marked on the Meter, bet-
ween terminals or between any terminal and earth ground
to avoid any damage.
NCV (Non-Contact-Voltage) Detector
Turn the rotary switch to NCV position. Hold the top of the
meter close to the voltage source. If voltage is present, an
audible warning will sound and the LED light will flash.
Presence of Phase Detector Function: connect the red test
lead to the "V" terminal then touch the naked end of the cab-
le. If phase is present, an audible warning will sound and the
LED light will flash.
Warning: without direct connection, the detector cannot
measure the correct range because the measurements al-
position.
position.
ways depend on the thickness of the insulation. This function
can be used only AC voltage measurements.
d
s
:
etailed
pecifications
dc Voltage (v
)
Range
Resolution
200mV
100µV
2V
20V
10mV
200V
100mV
500V
Overload protection: 200mV measurement range 250V DC
or 250V AC RMS
Measurement Range: 500V DC or 500V AC RMS
AC Voltage (V~)
Range
Resolution
2V
20V
10mV
200V
500V
Overload protection: 500V DC vagy 500V AC RMS érték. Fre-
quency: 40~400Hz
DC Current (A
)
Range
Resolution
200µA
0.1µA
2mA
20mA
10µA
200mA
100µA
2A
10A
10mA
Overload protection: F200mA/250V fused (6,35mmx32mm)
F10A/250V (6,35mmx32mm)
Resistance
Range
Resolution
200Ω
2kΩ
0.001kΩ
20kΩ
0.01kΩ
200kΩ
0.1kΩ
2MΩ
0.001MΩ
Overvoltage protection: 250V DC or 250V AC RMS
Max. open circuit voltage: <3.2V
Accuracy
±(0.5% + 2 digit)
1mV
±(0.5% + 3 digit)
±(0.8% + 3 digit)
1V
±(0.8% + 5 digit)
Accuracy
1mV
±(1.8% + 10 digit)
0.1V
1V
Accuracy
1µA
±(1.0% + 5 digit)
±(2.0% + 5 digit)
1mA
±(3.0% + 5 digit)
Accuracy
0.1Ω
±(1.0% + 2 digit)

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