If the multimeter beeps or show any sign of continuity the coil is electrically closed good. In this post i am going to teach you how to test a relay with a multimeter.
How To Test A Four Terminal Relay 7 Steps With Pictures
How to test a 4 pin relay with multimeter. You will find the resistance of the relay coil. The voltage applied should be that of the. Find and remove the relay. Use a digital multimeter dmm or analog ohmmeter to measure the resistance across the load connections of the relay. Apply power from a test power supply to the control circuit. Use the blue and yellow adapters.
Testing relays with multimeter shaun mercado. Use these tips to learn how to test a 4 terminal relay. Use the orange adapters with the blue and yellow. Pin tip to banana plug male 69210 1 at blue. Httpsamznto2kplxwf testing a relay is not as complicated as people think. And one of the best ways to do this is to use a multimeter with an ohmmeter setting and then measuring the resistance values.
The reading should be open infinite ohms on an no relay and short 0 ohms on an nc relay. In the datasheet you will also get the tolerance value of the coil. Refer to the datasheet to get the coils resistance. The procedure of checking the coils resistance of a relay with a multimeter. To check the relay coils resistance take the multimeter you have and place it in the ohmmeter ω setting and place the probe leads of the multimeter on the 2 terminals of the relays coil. How to test a 3 4 or 5 pin relay with or without a diagram duration.
Ratchets and wrenches. Place the probes of the multimeter on the coil terminals. Unsubscribe from shaun mercado. You will need a 12v power supply or car battery and multimeter voltmeter. Use this lisle test lead kit with lisle relay test jumper kits 56180 or 60610 to easily and securely connect relay test jumper to your multimeters test leads. Banana plug test leads.
If your meter does not have a continuity function or for some reason does not show any sign of continuity then use the second method. This video shows you how an automotive relay works and how you can test it using an digital multimeter. The first step is to test the coil of relay. The purpose of testing a relay is to find whether it is good or bad. This is the easiest way to do it out of the car and the only way it should be done. If the multimeter does not beep the coil is open damagedthe relay needs to be replaced.
How to test relay any relay voltmeter. Set the multimeter in continuity test mode. To check the coils resistance with a multimeter take a multimeter and put it on the ohmmeter setting then connect the multimeter probes on any two terminals of relays coil. The lisle relay test jumper kit includes adapters for the most popular types of test leads included with most multimeters. Pin tip probe test leads. It doesnt matter which probe is placed on which terminals.
Dmms and analog ohmmeters are available in electronic parts and hobby stores. Contents 2 at orange. For example if the resistance is 320ω and the.
Gallery of How To Test A 4 Pin Relay With Multimeter
