This means that your multimeter is reading the signal in thousands and your connection is dangerously high. If there is, it means that it’s actually reading megaohms, which means that there are zeroes that won’t fit on the screen. Check to see if there is an X or M in front of the ohm symbol on the reading.Do not use the device until the problematic connection has been resolved. The resistance is higher than it should be and you need to replace the wire, fuse, outlet, battery, or device. If you have a reading higher than 10 ohms, you have poor continuity. Seek a replacement fuse or wire if the reading is higher than 10 ohms. If you’re testing an appliance and wire connection for safety reasons, press the red terminal against the wire or fuse that you’re testing.If you’re testing soldering, put the red terminal on the other end of the material that you’re testing.It’s not dangerous, but it will mess with your reading. If you’re testing a fuse, put the red terminal anywhere on the body of the fuse but don’t let your 2 terminals touch.If you’re testing a switch, there should be no continuity reading when you flip the switch to the off position.The current will automatically be sent to the other terminal to render a reading. This will connect the 2 terminals using the wire, outlet, or fuse as a conduit. If you’re testing an open current, put it anywhere on the plate of an outlet or the frame of an appliance. X Expert Source Ricardo MitchellĮlectrician & Construction Professional, CN Coterie Expert Interview. With the black terminal still on the first end of the current, press the exposed, red terminal on the other end of a linear current, like a second end of the wire or second fuse terminal. Place the red terminal on a separate part of the fuse, wire, or other end of the device. Take any removable fuse out and test any hooked up wire by turning the appliance, car, or device off first. Don’t worry about turning these off if they’re not already installed in something.
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