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Message: <blockquote data-quote="laal" data-source="post: 8493663" data-attributes="member: 94459">MuItimeter TesterWhat is a multimeter tester?A multitester or multimeter is a device which can be used to gather data  about electronics circuits. A basic multitester can measure resistance,  voltage,current and continuity, while more advanced versions may be  able to provide additional data. Multitesters can be used with the current off or on in most cases,  although using the device with the current on can sometimes result in  damage to the device.This device is hand held, and powered by batteries.  It consists of two probes attached to a central pack which can be  digital or analog. The device has a series of buttons or switches which  can be used to set the type of measurement being performed.Analog Multitester Analog types are been able to read manually to its Reading the needle  pointing to a gauge, it requires a some computation when checking some  components or where the selector is being set.Basic Multitester has features like as follows:Resistance Set Value:      x1,                                       x10, = multiply by 10                                         x1K=  it means multiply it by 1000                                             x10K = it means multiply it by 10,000DC Set Value:  from 0.1 to 1000 DC Voltage (Direct Current)AC Set Value: from 10 to 1000 AC Voltage  (Alternating Current)DC Current Set Value: from 0.5micro ampere to 50 micro ampereContinuity, the most basic measurement provided by a multitester,  determines whether or not a circuit is complete. For a continuity test,  the device is set to “ohms” and AC or DC, depending on the current being  measured, before the probes on the device are inserted into the  circuit. If the circuit is complete, the readout will measure between 0  and .05 ohms. A measurement of infinity indicates that the circuit is  open, which means there is a problem.In addition to being used as a  basic continuity tester,<img src="http://lh6.ggpht.com/_8JZhVVmpICU/S8QmwBd1cEI/AAAAAAAAAMo/XZCzS3MVeek/analog%20tester.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Digital MultitesterA digital multimeter is a tool that can measure amps, volts, and ohms.  It is different from an analog meter, which has a needle and a gauge, in  that it has a digital light-emitting diode (LED) display. Digital  multimeters are typically more accurate than their old analog  counterparts. A digital multimeter can also have other functions;  obviously, the more expensive meters will have more features, but all of  them measure the three basic currents.<img src="http://lh3.ggpht.com/_8JZhVVmpICU/S8Qmwj30eqI/AAAAAAAAAMs/4kC2dxIIo4Q/digital%20tester.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Another specification to consider when purchasing a DMM is its range.  Regardless of what current is being tested, the proper range for that  measurement is critical to the accuracy of the measurement. If the  operator were testing a 12-volt battery, for instance, then a range  setting of 0 to 25 volts would result in a more accurate measurement  then a range setting of 0 to 500 volts. Thankfully, many DMM’s have an  automatic range feature, which will set the proper range for the circuit  being tested automatically; all the operator has to do is set the DMM  to the proper current being tested, and the meter does the rest.When using a DMM for the first time, it is essential that a person read  the instruction manual that comes with it. Many DMM’s require different  steps for taking measurements; this will entail pressing certain buttons  before hooking up the leads, and so on. Most digital multimeters  require a battery for operation. The instruction manual will most likely  specify which type of battery to use. If the battery type is not  specified, alkaline batteries are typically used.A DMM’s maximum reading capacity is extremely important as well. This is  the maximum amount of current that the meter can measure. Usually, the  current limit is printed on the face of the DMM. A common limit is 10  amps. This means that if the meter is hooked up to a current of 12 amps,  the internal fuse will pop to prevent damaging the meter. Installing a  bigger fuse will not increase the limit of the DMM; it will only burn it  out permanently.</blockquote>

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