How to use a digital ohmmeter

To measure resistance we can also use an analog multimeter and digital multimeter. Using the Meter 1.

Holding one lead of the resistor and one test lead of the ohmmeter between the thumb and index finger of the left hand and the other resistor lead and meter test lead between the thumb and index finger of the right hand to keep each test lead of the meter in firm contact with the respective leads of the resistor the technician obtains a resistance measurement of 15 MO.

How to use a digital ohmmeter. Setting up Your Ohmmeter 1. Make sure your meter has a battery installed or is plugged in. If you just bought an ohmmeter the battery may have.

Plug your test leads into the sockets on your meter. For multi-functional meters you will see a common or. Touch the 2 ends of the leads.

Using the Meter 1. Turn the meter on. The process by which your turn your ohmmeter on will vary depending on the model youre using.

Select the resistance function if youre using a multimeter. An ohmmeter is included in the suite of tools available. Test resistance in a circuit when it is.

So how do you accurately test your system using a digital ohmmeter. You can do so in five simple steps. As with any battery-operated device the first thing you need to do is make sure the batteries are in and working.

Then set the ohmmeter to a scale of 0-200. The ohmmeter comes with two probes. A black probe and a red probe.

Step 1 Start by turning off power to the motor verifying that the voltage is zero and disconnecting the 3 phases. Step 2 Set your meter to the ohmmeter setting. Step 3 Start by measuring the resistance from a phase of the motor to the ground.

The resistance should be very high. Set your multimeter to the highest resistance range available. The resistance function is usually denoted by the unit symbol for resistance.

The Greek letter omega O or sometimes by the word ohms Touch the two test probes of your meter together. When you do the meter should register 0 ohms of resistance. First you need to set the meter.

You need to set the meter at the lowest scale that is higher than the resistance of what you are checking. For example if I am working on a range and I want to check the sensor I know the sensor should be about 1100 ohms so I would set the meter to RX100. Disconnect the component that youre testing from all live circuitry.

Ideally your test component should be isolated and not connected to anything. Plug your multimeter probes into the jacks labeled common and DC voltage. Use the black plug for common and the red plug for DC voltage.

A digital multimeter is an indispensable tool for testing diagnosing and troubleshooting electrical circuits components and devices. The first digital multimeter was introduced in the late. Holding one lead of the resistor and one test lead of the ohmmeter between the thumb and index finger of the left hand and the other resistor lead and meter test lead between the thumb and index finger of the right hand to keep each test lead of the meter in firm contact with the respective leads of the resistor the technician obtains a resistance measurement of 15 MO.

A digital multimeter is a tool that can be used as an ohmmeter. In order to measure the resistance of a given conductor the red and black leads of an ohmmeter are connected to the positive and negative terminals of the conductor respectively. The resistance of the wire or circuit is indicated by a needle sliding on the devices scale.

In the case of an ohmmeter that value is also described in ohms. A megger will read a wire or motor windings in Megohms where 1 Megohm is equal to 1000000 ohms. In order to read such a high resistance value the meter must be capable of generating a very high voltage.

The smallest value that a megohmmeter can supply is 1000 volts. Ohmmeter works based on when an ohmmeter applies current to the circuit or component it measures the resulting voltage and calculates the resistance value using ohms law formula VIR. To measure resistance we can also use an analog multimeter and digital multimeter.

We cannot find out the resistance using ohmmeter in a working or test circuit. To check the resistance we need to disconnect the power and measure the resistance. To start lets measure voltage on a AA battery.

Plug the black probe intoCOM and the red probe into mAVO. Set the multimeter to 2V in the DC direct current range. Almost all portable electronics use direct current not alternating current.

Connect the black probe to the batterys ground or - and the red probe to power or. In youre using a digital multimeter turn it on. Select the Right Range If youre using an analogue multimeter set it to the same range as the estimated resistance to be measured.

The scale has a sharp needle for the readings. Set the multimeter to the highest resistance range by turning the dial to the highest ohm setting. Step 2 Touch the test probes of your digital multimeter together.

The digital display of the multimeter should read 0 ohms. Suitable for all kinds of household use and industrial use. Can be use at Household Outlets Fuses Batteries including Vehicles Automotive Circuit Troubleshooting Charging System Testing electronics in Cars etc.

It is a ACDC Voltmeter Ohm Volt Amp Tester Electric Ohmmeter Diode Resistance and Audible.