Multimeter
has multi functionalities like, it acts like ammeter, voltmeter and ohmmeter.
There are
two main types of multimeter .Analog multimeter and digital multimeter.
How to Measure DC VOLTAGE: (—, - - -)
To measure the DC Voltage on multimeter .First
you need to rotate the rotary switch pointer tip toward the DC Voltage section.
Normally we measure voltage up to 20 volts its better to bring pointer tip on
20v .Then Connect the probe to DMM insert Black in Black input jack and red in middle red input jack. After that connect
one probe tip to the battery terminal and the other to the next terminal .The
digital value will be show on the
display screen on DMM it will be show
you the exact voltage of your battery or any DC source you connect.
If the value
not show on the screen then rotate the rotary switch to high value.the maximum range of this DMM is
500 volts DC.
How to Measure AC VOLTAGE: (~)
Similarly like DC voltage. You can also
measure AC voltage through DMM.
Just Move rotary
switch pointer (Dial) toward the AC Voltage section .carefully Attach one prob
with the red and other with the black of AC Voltage source. On the display
screen you will be find the exact AC Voltage value. The maximum voltage range
of these multimeters are 500 Volts AC. voltages are measure in parallel.
Precaution: Do
not play with the AC High voltage .Operate it only with the help of qualified person
.remember high voltage are deadly.
How to Measure DC Current:
To measure
DC Current on multimeter.First connect the device on series .Move rotary switch
toward DC Current section and attach the device in series .Attach one probe to
the device one terminal .after that attach other end of the device to the
battery terminal and the other prob to the other terminal of the battery.the
multimeter display will be show you the exact current passing through the
device. the device could be LED,DC Motor or any other Electronic components.
Current high
then 20mA.Move the red prob to the other input jack. Which is design for current
limit upto 10Ampere .Inside the multimeter a fuse of 10 Amperes are connect .Current greater then 10A could
damage the fuse . Replace fuse after damage.Its cheap and easly available in
market.
How to Measure Resistance of a Resistor: Ω
To find the
resistance of a resistor first move dial toward the Ohm section .then connect the resistor with
the prob of the multimeter .resistor value will be show on the display screen
.if the value not show or show only 1 then move the dial to the high value
.Check all m,k and M.
Continuity Test:
For
continuity test move rotary switch(dial) to the continuity section which is a
diode sign /sound sign. Connect both the probs you will be hear a beep sound it
mean that your connection are good. After that connect one prob to the one end
of the wire and the other prob to the other end of the wire if you hear a beep
sound the wire are connected and good to use. If you don’t hear the beep sound
it mean that your wire are break in between some where.
Contiunity test
are very important in circuit designing .
Temperature:
With the help of this multimeter you can also
find temperature in both Celsius °C (Centigrade)
and Fahrenheit °F.
A sensor are
attach instead of probs . Move the pointer to the C OR F for temperature .Then
check the screen for results.
Buttons:Hold Button:
Hold button
is used to hold value on screen for some time.
Light Button:
Light Button
is used to visible screen on Dark environment.
Video
Post a Comment