The most comprehensive avometer knowledge is shared

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Avometer is the measurement with electronic the most commonly used lover one of instruments, be a kind compositive the instrument that a variety of commonly used electricity measure a function. Many avometer change direction to develop to intelligence nowadays, the avometer sort on market, function is more, how to choose an avometer that suits oneself? How is avometer used? The avometer knowledge that you care, introduce in detail below. 1, what is avometer avometer is called again answer with watch, multi-purpose watch, 3 with watch, numerous wait with the watch, it is the measuring instrument watch with the indispensable branch such as electric power electron, it is main purpose in order to measure voltage, electric current and resistance commonly. Avometer is avometer of pressing with a finger and digital avometer by indication means cent. The measuring instrument that is a kind of muti_function, much span is expressed, general avometer is measurable dc electric current, volts d.c. , alternating current, alternating voltage, resistor is symphonious frequency n, some still can measure a few parameter of quantity of alternating current, capacitance, inductance and semiconductor. 2, the: of action foundation function of avometer? ? of Zhang of Qi of ┏ of Ke of Piao of charm of dainty of 〔 of  of gourd ladle of  of fir of Qian of ⒌ of a huge legendary turtle of Si of Miao Geng ⒌ is measured capacitance, inductance, frequency, occupy multiple of enlarge of sky comparing, temperature, dynatron 3, the avometer with the common classification of the classification of avometer and principle avometer has avometer of type of pressing with a finger. Type of pressing with a finger is multi-purpose the watch is one watch head those who be core component is muti_function measuring instrument watch, measured value is read by directive of the finger that express a head take. The measured value of digital type avometer is shown by liquid crystal screen shows with digital form directly, read take convenient, some still contain speech clew function. Avometer is public head of a watch, collect volmeter, ammeter and ohmmeter the appearance at an organic whole. The fundamental of avometer principle avometer is the magneto-electric dc ammeter that uses a delicacy (microamper is expressed) the head that make a list. Carry watch head when small electric current, can have voltaic directive. But watch head cannot carry big electricity, so, must in the paralell connection on watch head and series connection a few resistor undertake billabong or step-down, measure the electric current in giving circuit, voltage and resistance thereby. 4, skill of avometer choose and buy 1.

Indication digit of the indication digit of avometer and precision and precision are avometer the basiccest the mainest also index. Will tell avometer to show digit jumps over high accuracy commonly taller also, conversely contrary. 2.

The measurement technique of avometer and the measurement technique that communicate frequency noisy avometer basically are measured to communicating signal and character, accompany the change that communicates signal frequency, appear all sorts of frequency are answered, affect the measurement of avometer. The avometer measurement to communicating signal, have: of 2 kinds of methods commonly? е of travel of Shan of camel of arrogant  island is blocked put in order handsome? .

Function and the avometer that measure limits to differ, its produce manufacturer to will design different function to measure range. Common avometer can check meet volts d.c. , electric current, resistance, connect etc, but some avometer do not install voltaic function to reduce cost. 4.

The avometer ego protection with measure stability and protection good is very good, when inserting the alternate route that express a pen like some avometer, bee of can automatic generation cries call the police... the choose and buy of avometer, not blind covet is cheap, it is practical, good to want with. 5, the use method of avometer 1, avometer should be familiar with before using each function, according to the object that is measured, choose archives correctly, span and watch pen insert aperture. 2, it is when size of pair of the data that be measured are unidentified, should first span switch, park maximum, go place of grain Cheng archives by a large number of Cheng after that switch, make appearance finger indicates the 1/2 above in full scale to be in can. 3, when measuring resistance, after choosing proper fold archives, two watches pen photograph is touched make pressing with a finger points to in null, be like null of deviate of pressing with a finger, should adjust " zero " knob, make index clears, measure an outcome in order to assure accurate. Be like cannot zero or number show a watch to give out low voltage to call the police, answer to be checked in time. 4, when measuring some circuit resistance, must cut off the power source of the circuit that be measured, do not measure electrifiedly. 5, when use avometer undertakes metrical, want to notice the safety of person and appearance equipment, the metallic part that expresses a pen must not be felt with the hand in the test, do not allow electrified switch archives switch, measure in order to ensure accurate, avoid to happen get an electric shock and the accident such as burn down appearance. 6, avometer maintains with maintenance avometer maintains 1.

Do not receive volts d.c. of prep above 1000V or prep above 700V to communicate virtual value voltage. 2.

When wanting to be in Ω and position in functional switch, receive voltage source. 3.

Was not installed good in batteries or rear cover is done not have on when tightening, do not use this list please. Avometer is maintained 1.

If if break,visual examination discovers line, sealing off, make contact silk of short circuit, frit is in charge of, burned-out component, can feel the temperature rise case with a batteries, resistor, transistor, agglomerate collect, can consult circuit graph finds out the reason with unusual temperature rise. 2.

The working voltage that measures voltage law to measure each key to nod is normal, can locate trouble spot more quickly. If measure the working voltage of A/D converter, fiducial voltage,wait. 3.

Examination of short circuit law uses short circuit method commonly in A/D converter method, this kind of method is used morer when repairing instrument of weak report and small report. 4.

Open circuit law disconnects doubtful part from inside overall or unit circuit, if breakdown disappears, state breakdown is in disconnecting circuit. This law basically agrees with the circumstance of circuit existence short circuit. 5.

Measure component law to already narrowed when breakdown when somewhither or a few component, can undertake to its online or measure from the line. When necessary, undertake replacing with nice element, if breakdown disappears, explain component is bad already. CNC Milling CNC Machining