It's a must-have for any toolbox—but there's a learning curve involved. Learn how to use a multimeter for all of your electrical testing needs.
Almost every multimeter uses a large dial to set the mode. It can look pretty intimidating—but we can help walk you through everything you need to know. No matter which brand you use, several key features exist on every dial. You just have to know where to look and you can easily ge...
Always set a digital multimeter to the highest range setting before using it. For example if it can measure zero to10 amps through zero to100 amps, start with the 100-amp setting. Reduce it if your reading falls into a lower range. Even low voltages can inflict a painful electrical shock...
Set the knob to "20V" in the DC range (the DC Voltage range has a V with a straight line next to it). Multimeters are generally not autoranging. You have to set the multimeter to a range that it can measure. For example,2Vmeasures voltagesup to 2 volts, and20Vmeasures voltagesup ...
Then set your digital multimeter to current mode and select the appropriate range for your application. This is a very important step. If the range isn’t set high enough, you risk blowing the fuse in your digital multimeter when you connect it to the circuit. This will not only destroy ...
How to Measure Current with a Multimeter Here’s were everything gets different. As we learn how to use a multimeter in this tutorial, take note that the you’ll need to make several changes in the way you use the multimeter to measure current. First, make sure the red probe is connect...
Heater cold resistance at room temperature, with a multimeter between grey and white cable (H+, H-), and the sensor not connected to the Precision Wideband Controller, should be 2.5 to less than 10 ohms * We dedicate the Precision Wideband Controller to the memory of Garfield Willis. Garfiel...
A volt-ohm meter (also known as a multimeter) A logic probe (optional) A regulated 5-volt power supply A collection of TTL chips to experiment with Several LEDs (light emitting diodes) to see outputs of the gates Several resistors for the LEDs Some wire (20 to 28 gauge) to hook things...
Soft soldering is a technique used to join wires, fix electronic components onto circuit boards and bond copper pipes together. This tutorial shows you how to solder step by step.
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