Cosas Básicas

There are 2 styles of multimeters.

Switched

Manually switch

between ranges to get

most accurate reading. 

Auto Range

Switches between

ranges automatically

for best Red

METER LEADS.

RED meter lead

Is connected to Voltage/Resistance or amperage port

Is considered the positive connection.

Probes

Are the handles used to hold

tip on the tested connection

Tips

Are at the end of the probe

and provides a connection

poinT

Black meter lead

Is always connected to the common port

Is considered the negative connection

Review

•

A meter capable of checking for voltage, current, and

resistance is called a

multimeter

,

•

When measuring

Voltage

the multimeter must be connected to

two points in a circuit in order to obtain a good reading. Be

careful not to touch the bare probe tips together while

measuring voltage, as this will create a short

-

circuit!

•

Never read

Resistance

or test for

Continuity

with a multimeter

on a circuit that is energized.

•

When measuring

Current

the multimeter must be connected in

a circuit so the electrons have to flow

through

the meter

•

Multimeters have practically no resistance between their leads.

This is intended to allow electrons to flow through the meter

with the least possible difficulty. If this were not the case, the

meter would add extra resistance in the circuit, thereby

affecting the current