Join Us!! |
Action-Electronics.com Since 1972 - Santa Ana CA. | Tel 800-563-9405 or (714) 547-5169 |
||
|
NO Minimum Orders |
Payment, Shipping & Order Options - General Help - FAQ - RETURNS |
SURPLUS
-
International |
||
|
|
 
 |
|||
|
Using a Multimeter
A multimeter is used to make various electrical measurements, such as AC and DC
voltage, AC and DC current, and resistance. It is called a multimeter because it
combines the functions of a voltmeter, ammeter, and ohmmeter. Multimeters may
also have other functions, such as diode and continuity tests. The descriptions
and pictures that follow are specific to the Fluke 73 Series III Multimeter, but
other multimeters are similar.
Important note: The most common mistake when using a multimeter is not switching
the test leads when switching between current sensing and any other type of
sensing (voltage, resistance). It is critical that the test leads be in the
proper jacks for the measurement you are making.
Safety Information
● Be sure the test leads and rotary switch are in the correct position for the
desired measurement.
● Never use the meter if the meter or the test leads look damaged.
● Never measure resistance in a circuit when power is applied.
● Never touch the probes to a voltage source when a test lead is plugged into
the 10 A or 300 mA input jack.
● To avoid damage or injury, never use the meter on circuits that exceed 4800
watts.
● Never apply more than the rated voltage between any input jack and earth
ground (600 V for the Fluke 73).
● Be careful when working with voltages above 60 V DC or 30 V AC rms. Such
voltages pose a shock hazard.
● Keep your fingers behind the finger guards on the test probes when making
measurements.
● To avoid false readings, which could lead to possible electric shock or
personal injury, replace the battery as soon as the battery indicator appears.
The black lead is always plugged into the common terminal. The red lead is
plugged into the 10 A jack when measuring currents greater than 300 mA, the 300
mA jack when measuring currents less than 300 mA, and the remaining jack
(V-ohms-diode) for all other measurements.
The meter defaults to autorange when first turned on. You can choose a manual
range in V AC, V DC, A AC, and A DC by pressing the button in the middle of the
rotary dial. To return to autorange, press the button for one second.
The Touch Hold mode automatically captures and displays stable readings. Press the button in the center of the dial for 2 seconds while turning the meter on. When the meter captures a new input, it beeps and a new reading is displayed. To manually force a new measurement to be held, press the center button. To exit the Touch Hold mode, turn the meter off.
Note: stray voltages can produce a new reading.
Warning: To avoid electric shock, do not use the Touch Hold to determine if a circuit with high voltage is dead. The Touch Hold mode will not capture unstable or noisy readings.
To avoid blowing an input fuse, use the 10 A jack until you are sure that the current is less than 300 mA.
Turn off power to the circuit. Break the circuit. (For circuits
of more than 10 amps, use a current clamp.) Put the meter in series
with the circuit as shown and turn power on.
|
EXPAND YOUR SEARCH BY USING "MATCH ANY SEARCH WORDS" *123* will show everything with 123 within it. xxx123 xxx123xxx 123xxx ETC. USE "*". TO SEARCH FOR (*=everything) EVERYTHI* or *RYTHING or *EVERY* USE "?". TO SEARCH FOR (?=Single Digits) EVERYTHI??? or ????RYTHING or EVERY????? LOOKING FOR 12-1234, ALSO TRY *121234*, *12-1234* ETC... Leave off the part number prefix. Instead of XX-12345 search for *12345 or *12345* |
|
|
|
|
|
|
In
stock quantity is not [tracked]
on the website therefore not reflected at time of order. |
