Multimeters vary depending on manufacturer and price.
The most common elements are.
Voltage Ac and DC
Current in Amps
and Resistance in Ohms.
For voltage, select the maximum range you are likely to see.
Put the red lead on positive and black lead on negative part of the circuit or power supply you are testing.
For current, Disconnect one lead of the power supply. Select the Current range you are likely to see (sometimes involves changing one of the test probe sockets) Put one lead on the supply and the other on the wire you have disconnected, so the meter is in series with the supply.
For resistance, you can check the absolute value of a resistor, or check for continuity or insulation of a conductor. Put the leads at either end of the device or circuit you are testing. 0 Ohms = little or no resistance, cable conducts.
No reading = open circuit, or insulation OK.
Select minimum range for conductivity and max range to check insulation.
The parts of a multi tester are:
A multi tester is an electronic measuring instrument that measures things like voltage, current, and resistance.
Ø The dial. This has the arc shaped scales visible through the window. The pointer indicates values read from the scale.
Ø The pointer or needle, this is the thin black line at the left-most position in the dial face window in the image. The needle moves to the value measured.
Ø Arc shaped lines or scales on the meter dial face. May be different colors for each scale but will have different values. These determine the ranges of magnitude.
Ø A wider mirror like surface shaped like the scales mentioned previously might also be present. The mirror is used to help reduce parallax viewing error by lining up the pointer with its reflection before reading the value the pointer is indicating. In the image, it appears as a wide gray strip between the red and black scales.
Ø A selector switch or knob. This allows changing the function (volts, ohms, amps) and scale (x1, x10, etc.) of the meter. Many functions have multiple ranges. It is important to have both set correctly, otherwise serious damage to the meter or harm to the operator may result. Most meters employ the knob type like the one shown in the image, but there are others. Regardless of the type, they work similarly. Some meters (like the one in the image above) have an "Off" position on this selector switch while others have a separate switch to turn the meter off. The meter should be set to off when stored.
Ø Jacks or openings in the case to insert test leads. Most multimeters have several jacks. The one pictured has just two. One is usually labeled "COM" or (-) for common and negative. This is where the black test lead is connected. It will be used for nearly every measurement taken. The other jack(s) is labeled "V (+) and the Omega symbol" (an upside down horseshoe) for Volts and Ohms respectively and positive. The + and - symbols represent the polarity of probes when set for and testing DC volts. If the test leads were installed as suggested, the red lead would be positive as compared to the black test lead. This is nice to know when the circuit under test isn't labeled + or -, as is usually the case. Many meters have additional jacks that are required for current or high voltage tests. It is equally important to have the test leads connected to the proper jacks as it is to have the selector switch range and test type (volts, amps, ohms) set. All must be correct. Consult the meter manual if unsure which jacks should be used.
Ø Test leads. There should be (2) test leads or probes. Generally, one is black and the other red.
Ø Battery and fuse compartment. Usually found on the reverse, but sometimes on the side. This holds the fuse (and possibly a spare) and the battery that supplies power to the meter for resistance tests. The meter may have more than one battery and they may be of different sizes. A fuse is provided to help protect the meter movement. Sometimes there is more than one fuse. A good fuse is required for the meter to function. Fully charged batteries will be required for resistance / continuity tests.
Ø Zero Adjustment. This is a small knob usually located near the dial that is labeled "Ohms Adjust", "0 Adj", or similar. This is used only in the ohms or resistance range while the probes are shorted together (touching each other). Rotate the knob slowly to move the needle as close to the 0 position on the Ohms scale as possible. If new batteries are installed, this should be easy to do - a needle that will not go to zero indicates weak batteries that should be replaced.
A multi tester is three test instruments in one. It has the ability to measure the voltage produced by a power source. Secondly it can be used to check the resistance of components, this scale can also be used for checking continuity of a circuit. Lastly it has the ability to check small current flows usually in DC circuits.
A multi-tester can test:Voltage, Amperage, Resistance, Continuitysome can test temperature, phase rotation, frequency. It all depends on how much you spend, what kind of features they have.
A thermal diamond tester is a tool used by anyone interested in verifying that a gem is indeed a diamond. The tool uses electronics connected to a probe with a fine tip that reads the stone's level of thermal conductivity to positively or negatively test for the mineral diamond.
fluke
Multi-timbral
US multi platinum Record producer
ohms voltage Ac Dc power i think thats all i know sorry guys
TARUB
There are several advantages of digital over analogue multi-tester. The digital multi tester has improved accuracy and is very simple to use unlike the analogue type. .
analog is a D'arsonal movement (an indicator needle over a scaled background) and a digital meter is a LCD display that has no movement
through the used of multi-tester
athe typeof multi tester are theHAND HELD PARTS TESTER - 815Description: Order HAND HELD PARTS TESTER-815 online from Digi-Key. Manufactured by B&K Precision. Digi-Key part number BK815-ND.TESTER CABLE MULTI-NETWORK - 231ADescription: Order TESTER CABLE MULTI-NETWORK-231A online from Digi-Key. Manufactured by B&K Precision. Digi-Key part number BK231A-ND.IC 8-IN GATE EXPND MULTI 16-DIP - CD4048BEDescription: Order IC 8-IN GATE EXPND MULTI16-DIP-CD4048BE online from Digi-Key. Manufactured by Texas Instruments. Digi-Key part number 296-2054-5-ND.CABLE/HARNESS TESTER - 205Description: Order CABLE/HARNESS TESTER-205 online from Digi-Key. Manufactured by B&K Precision. Digi-Key part number BK205-ND.HDD VIDEO MONITOR TESTER - 1275Description: Order HDD VIDEO MONITOR TESTER-1275 online from Digi-Key. Manufactured by B&K Precision. Digi-Key part number BK1275-ND.TRANSISTOR TESTER PORTABLE - 510ADescription: Order TRANSISTOR TESTER PORTABLE-510A online from Digi-Key. Manufactured by B&K Precision. Digi-Key part number BK510A-ND.POWER SUPPLY LEAKAGE TESTER - 1655ADescription: Order POWER SUPPLY LEAKAGE TESTER-1655A online from Digi-Key. Manufactured by B&K Precision. Digi-Key part number BK1655A-ND.TESTER PREMIUM NETWORK CABLE - ACT-LANDescription: Order TESTER PREMIUM NETWORK CABLE-ACT-LAN online from Digi-Key. Manufactured by Assmann Electronics Inc. Digi-Key part number AE1205-ND.TESTER SCSI CABLE - ACT-SCSIDescription: Order TESTER SCSI CABLE-ACT
You will need a small electrical multi-tester to test the switch. Set the tester to "ohms". Disconnect the wiring from the switch. Touch one of the tester leads to one side of the switch and the other lead to the other side. Your reading should be zero. Have a friend depress the brake pedal, and the needle on the meter should swing left to right. If the needle does not swing then the switch is bad. If it swings then the problem is elsewhere in the wiring. The multi-tester can be found at hardware stores, auto parts stores and department stores.
A multi-tester can test:Voltage, Amperage, Resistance, Continuitysome can test temperature, phase rotation, frequency. It all depends on how much you spend, what kind of features they have.
A multi-tester can test:Voltage, Amperage, Resistance, Continuitysome can test temperature, phase rotation, frequency. It all depends on how much you spend, what kind of features they have.
To my own understanding, you will use multi-meter to test for the polarity
Depending of what measures you want to test, oscilloscope can have multi task in electronics. Other test equipment is embedded with several applications that can perform different task.
athe typeof multi tester are theHAND HELD PARTS TESTER - 815Description: Order HAND HELD PARTS TESTER-815 online from Digi-Key. Manufactured by B&K Precision. Digi-Key part number BK815-ND.TESTER CABLE MULTI-NETWORK - 231ADescription: Order TESTER CABLE MULTI-NETWORK-231A online from Digi-Key. Manufactured by B&K Precision. Digi-Key part number BK231A-ND.IC 8-IN GATE EXPND MULTI 16-DIP - CD4048BEDescription: Order IC 8-IN GATE EXPND MULTI16-DIP-CD4048BE online from Digi-Key. Manufactured by Texas Instruments. Digi-Key part number 296-2054-5-ND.CABLE/HARNESS TESTER - 205Description: Order CABLE/HARNESS TESTER-205 online from Digi-Key. Manufactured by B&K Precision. Digi-Key part number BK205-ND.HDD VIDEO MONITOR TESTER - 1275Description: Order HDD VIDEO MONITOR TESTER-1275 online from Digi-Key. Manufactured by B&K Precision. Digi-Key part number BK1275-ND.TRANSISTOR TESTER PORTABLE - 510ADescription: Order TRANSISTOR TESTER PORTABLE-510A online from Digi-Key. Manufactured by B&K Precision. Digi-Key part number BK510A-ND.POWER SUPPLY LEAKAGE TESTER - 1655ADescription: Order POWER SUPPLY LEAKAGE TESTER-1655A online from Digi-Key. Manufactured by B&K Precision. Digi-Key part number BK1655A-ND.TESTER PREMIUM NETWORK CABLE - ACT-LANDescription: Order TESTER PREMIUM NETWORK CABLE-ACT-LAN online from Digi-Key. Manufactured by Assmann Electronics Inc. Digi-Key part number AE1205-ND.TESTER SCSI CABLE - ACT-SCSIDescription: Order TESTER SCSI CABLE-ACT