How To Use Multimeter Safely

A multimeter can be used to check its own current fuse by setting the selector switch to the resistance position and creating a connection between the two red sockets like this.

How to use multimeter safely. First of all volts don t run through anything current runs through cables etc. Connect the com probe to the other side of your component. Use the correct voltage rated equipment each multimeter has a category rating which specifies the voltage limit which it can handle. To measure voltage you have to connect your multimeter in parallel with the component you want to measure the voltage. Run test probes between your fingers as you visually inspect them.

It s important that you are aware of your equipment s rating and that you never use a multimeter or probe that is rated less than the voltage of the equipment you are testing. If you wanted to test the track voltage you turn on the track power and place one of the multimeter probes on each rail of the track. When inserted into the jacks the connection should feel firm and secure. In this quick multimeter tutorial i take you thr. If track power is 8v then the multimeter will read either 8v or 8v depending on which way round the leads are.

The one marked com for common the red test leads plugs into either the red socket marked for voltage and resistance or the red socket marked for current depending on which quantity you intend to measure with the multimeter. Mags how to videos how to use a multimeter for beginners in this video i will help teach you how use a multimeter to test volts ac dc amps and ohms. Read the value on the display. Unplug test probes from the multimeter s input jacks. Feel for any signs of damaged insulation.

Here are a few safety precautions you should take when making live measurements with a multimeter. When measuring a live circuit use insulated tools like safety glasses insulated mats and insulated gloves. Learn how to use a multimeter so you can start diagnosing some of those electrical system gremlins yourself. Connect the red probe to the positive side of your component which is where the current is coming from. Motors capacitors and power con version equipment such as variable speed drives can be.

Inspect the test leads for damaged insulation or exposed metal. Verify they are shrouded and show no physical damage. Multimeter safety multimeter safety and you voltage spikes an unavoidable hazard as distribution systems and loads become more complex the possibilities of transient overvoltages increase.