Meter Multimeter

Meter Multimeter

compared with an analog meter, which of these would not be considered an advantage DMM (digital multimeter)?

1 - the readability of light Sun 2 - less chance of error reading 3 - better accuracy 4 - less load circuit

As an electronics technician I would choose a Multimeter Digital (DMM) in an analog multimeter first because the DMM's ability to provide highly accurate readings in my work I have to adjust the circuit voltages in millivolts and sometimes microvolts, secondly because there is no possibility of error Paralax since most protocols have a mirror behind the pointer to adjust, but most do not have this advantage, it is sometimes difficult to align the pointer to a particular reading due to limitations of space thus making the counter more difficult to read words from a distance, so this error may be induced in the DMM reading while not have this problem. All DMM has an input impedance very large ie, the meter itself is not loaded by the circuit of induction whereas an incorrect reading analog meter have different input impedances and if you Metro chooses to use an analog with a low input impedance, less than half of Meg Ohm then you induce unwanted loading on the circuit and will be very inaccurate readings. Finally, I would choose a digital multimeter in a analog meter because of the options 2, 3 and 4. Therefore, the answer to your question is choice 1 as option 1 does not considered an asset of a DMM, but one of its drawbacks. This, said a digital multimeter is a very poor choice if you are measuring the voltage drop across of switches or switching performance measure, for example, change of velocity with respect to signal strength. In this circuit based aircraft is vital to ensure relay action on the aircraft is positive with no bounce ". This is important in a situation of aircraft, since they do not want the pilot, the selection switch systems that are intermittent. The best and really the only way to do this properly is with an analog meter as you can really see the action the switch happens in real time and measure the resistance of the switch contacts at the same time very useful for this function. I hope I have not confused and that this information be useful .... good luck and a good question ....

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