Using a DVOM (Digital Volt Ohm Meter) - ppt video online download

DVOM Get to know your Multimeter. What setting?? Where do the leads go?? On the meter and the circuit you are checking?.
Using a DVOM (Digital Volt Ohm Meter).
Some times called a. DMM - Digital Multimeter. Or Multimeter..
Where do the leads go On the meter and the circuit you are checking.
DVOM Lead Hook up This is how the leads go for Volts, Ohms & diode check..
Hook across (parallel) device or circuit being tested. Test for Voltage drop(loss of voltage in a circuit) Adjust to most accurate range..
DVOM VOLTAGE TESTS Test for available voltage.
DVOM VOLTAGE TESTS Measure Voltage drop.
Used to measure household voltage. 110, 220 and up. Some automotive applications..
DVOM DC Volts Direct Current Used to measure most Automotive circuits..
On many ohm law charts Volts is represented by the letter (E).
Must disconnect the item from the Battery. Use the Battery from the meter. Look for the M or k in the display. (Ω).
Ohms Disconnect the battery It uses the battery in the meter.
Use to check Diodes. Or measure the continuity of the circuit. Listen to the meter. Definition of CONTINUITY. 1a : uninterrupted connection, succession, or union ~ merriam-webster ~.
Make sure you switch it back when done..
Use to measure house hold amps. Look at the leads we have changed them..
Notice the straight line over the A. This is DC Amps what we use on the car..
Function selector adjust to most accurate range. Maximum amperage of meter. NOTE: DOUBLE CHECK YOUR CONNECTIONS BEFORE YOU DO TEST. CHECK YOUR SETUP!!.
DVOM AMPERAGE TESTS Hooked in SERIES with meter.
In line fuse I use a in line fuse to prevent the DVOM from being destroyed if you hook it up wrong..
Starts in the lowest range and adjusts up to find the best reading..
Depending were you have the meter it will round it off. For example reading the voltage on a battery. 1000V = 13V. 200V = 12.6V. 20V = 12.65V. 2V = OL. See the difference on the Ranges. This can make your readings somewhat. inaccurate if on the wrong range..
Volts Volts Volts Volts. Learn where the decimal point goes some meters do not have volt scale on the screen..
OL. OUCH. Blinking 3 or 1.

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