Multimeter

The multimeter is used to measure information across the circuit. The main three that get measured are:

Current (across circuit or component)
Voltage (across circuit or component)
Resistance of component

If you would like a manual, it can be found here

Multimeter

Only one red and one black input will be used. Depending on what you are measuring will determine what two inputs you will use

Handheld multimeter

Smaller multimeter, however, has the same functionality and usage

With these, however, the process is the same. Setting the multimeter to read voltage, current, or resistance is different. Use the dial in the center of the multimeter to set the multimeter to V(voltage measured in "volts," A(current measured in "amps"), and Ω(resistance measured in "ohms")

HOW TO USE

Measuring Resistance

The circuit used is The circuit in the photo is a simple circuit with a resistor(1kΩ) and an LED connected through a breadboard, the leads on the ends is how we will supply the votage

You could use a 9V battery for this, or you could use the DC Power Supply

Step 1: Turn on the multimeter with the white on button on the botttom left of the machine

Step 2: The leads used are shown in the photo (on the left). To measure resistance place the positive (red) lead into the "Ω" input and the negative (black) lead into the black input. This step is shown in the bottom photo.

Step 3: Select the "Ω2W" button on the top right of the soft-keys, this will tell the multimeter to measure resistance in Ohms (Ω)

Step 4: Make sure your circuit is NOT being powered first. Then place the leads across the resister, it should read around 1kΩ. If the value is negative flip the red and black connection points

And that's it!

Measuring Voltage

The circuit used is The circuit in the photo is a simple circuit with a resistor(1kΩ) and an LED connected through a breadboard, the leads on the ends is how we will supply the votage

You could use a 9V battery for this, or you could use the DC Power Supply

Step 1: Turn on the multimeter with the white on button on the botttom left of the machine

Step 2: The leads used are shown in the top photo (on the right). To measure resistance place the positive (red) lead into the "V" input and the negative (black) lead into the black input. This step is shown in the bottom photo

Step 3: Select the voltage button "DCV" for the multimeter to read for voltage

Step 4: Make sure your circuit is being powered first. Then place the leads across the resister, it should read around 6.9V. If the value is negative then flip the red and black connection points

And that's it, measuring voltages across any component follows the same process

Measuring Current

The circuit used is The circuit in the photo is a simple circuit with a resistor(1kΩ) and an LED connected through a breadboard, the leads on the ends is how we will supply the votage

You could use a 9V battery for this, or you could use the DC Power Supply

Step 1: Turn on the multimeter with the white on button on the botttom left of the machine

Step 2: The leads used are shown in the top photo (on the left). To measure resistance place the positive (red) lead into the "A" input and the negative (black) lead into the black input. This step is shown in the bottom photo to the left.

Step 3: Select the current button by selecting "Shift"->"DCV" which will select the DCI button and read the current

Step 4: Make sure your circuit is being powered first. Then place the leads across the LED (The LED will turn off, and the current going to it is now going through the multimeter, if you place the leads across the resistor the LED might pop), the multimeter should read around 9mA. If the value is negative then flip the red and black connection points

Clean Up: Process follows the same as others, turn off all machines, unplug and put away all leads, and clean up circuit

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