How To Use Multimeter Safely

Here are a few safety precautions you should take when making live measurements with a multimeter.

How to use multimeter safely. 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. Read the value on the display. Feel for any signs of damaged insulation. In this quick multimeter tutorial i take you thr. Learn how to use a multimeter so you can start diagnosing some of those electrical system gremlins yourself.

First of all volts don t run through anything current runs through cables etc. When inserted into the jacks the connection should feel firm and secure. Unplug test probes from the multimeter s input jacks. Use the correct voltage rated equipment each multimeter has a category rating which specifies the voltage limit which it can handle. Connect the com probe to the other side of your component.

The black test lead always plugs into the black socket on the multimeter. 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. Motors capacitors and power con version equipment such as variable speed drives can be. If track power is 8v then the multimeter will read either 8v or 8v depending on which way round the leads are. Inspect the test leads for damaged insulation or exposed metal.

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. Run test probes between your fingers as you visually inspect them. Connect the red probe to the positive side of your component which is where the current is coming from. Wear insulated gloves when using a multimeter. 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.

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. A good fuse will indicate very little resistance while a blown fuse will always show o l or whatever indication that model of multimeter uses to indicate no continuity. When measuring a live circuit use insulated tools like safety glasses insulated mats and insulated gloves.