Multimeter (Multimeter) Multimeter is considered the necessary measuring instruments for electronic measuring instrument used as the basis to electricity is electricity voltage and electrical resistance, regardless of whether it is a test or inspection, maintenance and repair of the circuit, it is necessary to measure them all. Multimeter Voltmeter Ammeter Ohmmeter and include them in the same body and movement (Movement), so a single called "VOM" (Volt-Ohm-Milliammeter)The stage using DC volt meter. 1. plug DC AC voltage measurement across time in parallel with load. 2. set the meter's neighborhood in DCV 3. adjust the switch is set to correct measurement districts. If you do not know the voltage measurement, the measuring area where Max (1, 000V), then downgrade to a lower district by district, until the meter needle will point up that reads easily and correctly. 4. position the gauge with a DC volt meter is not measuring up to touch the anode or positive pole measuring while pulling out. The meter needle will always point to that little wag measure it as a switch voltage (ACV) 5. direct voltage measurement circuitry will need to plug the correct gauge cable negative polarity is measured by (-COM) black negative pole of the power. Measuring lead anode (+) Red meter to measure the voltage on the point. The procedure uses the ohm meter. 1. set the meter's neighborhood districts ohms 2. using gauge red plug into the positive pole connector. (+) And the black measuring cable plug into the negative pole connector (a-COM) 3. adjust the z-a small switch on the measuring area. 4. before applying ohm meter to measure every time and in every district will have to adjust the 0 ohms. 5. If the ohm meter leads to measure resistance in the circuit, be sure to turn off (OFF) power switch every time. Caution in using a multimeter 1. don't let multimeter has a strong affect, for example, dropped from that height it will cause faulty measuring tools. Damaged. 2. turn multimeter in place smooth (horizontal) position and retire. 3. before making any confusion ครั้ gauge must be sure to select the correct measurement districts. 4. set the maximum scale of the Temple district as measured where the exact value is unknown. 5. do not use measuring ohms measure direct voltage or voltage switch. 6. to measure direct voltage measuring must be used, is always +-pole. 7. when measuring ohms should not, at the end of the measuring tap for too long. 8. When should disable disconnect switch adjustment and measurement select the district OFF. 9. do not Overload occurs the multimeter (beyond the scale.) Often, when a measure to show the position of the measuring set-up appropriately. With the circuit to be measured 10. the multimeter is not used for a long time before you can use the Function and Range switch should be rotated to reduce stiffness and. Better electronics touch screen 11. should store the multimeter in a case (Case).
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