Measuring Ac Voltage - Facom 712A Manual Del Usuario

3. To exit the Relative mode, press the "
" " disappears.
Note:
1. The meter will exit autorange mode and stay in the present range when you select
Relative mode.
2. When you use Relative mode, the actual value of the object under test must not exceed
the full-range reading of the present range.
measuring Dc Voltage
1. Connect the black test lead to the "com" terminal and the red test lead to the "
terminal.
2. Set the rotary switch to "
3. Connect the test leads across the source or circuit to be tested.
4. Read the reading on the display. The polarity of the red test lead connection will be
indicated as well.
Note: To avoid electric shock to you or damages to the meter, do not apply a voltage higher
than 600V between terminals.

measuring Ac Voltage

1. Connect the black test lead to the "com" terminal and the red test lead to the "
terminal.
2. Set the rotary switch to "
3. Connect the test leads across the source or circuit to be tested.
4. Read the reading on the display.
Note:
To avoid electric shock to you or damages to the meter, do not apply a voltage higher than
600V between terminals.
measuring Dc or Ac current
1. Set the rotary switch to "
current measurement ("
2. If the display does not read zero when the meter is in dc current measurement mode,
press the "
3. Press the trigger and clamp the jaws around the conductor to be tested. Make sure that
the jaws are perfectly closed.
Note:
a. Each time only one conductor should be clamped.
b. The conductor should be in the center of the jaws in order to get accurate reading.
c. Don't touch any conductor with hand or skin.
4. Read the reading on the display.
Note:
1. Remove all the test leads from the meter before using the meter for current
measurements.
2. After you set the rotary switch to "
you proceed. This is necessary for accurate measurements.
3. The meter's measuring capacity is AC/DC 400A. Measuring a current higher than
AC/DC 400A will cause a larger measurement error.
4. For dc current measurements, the display can indicate the current's direction.
A positive reading (negative sign "
direction is from the meter's front to its back. (tip: Current direction is the opposite of
electron flow direction.)
" position.
" position.
" position. Then press the "seLect" button to select dc
" appears) or ac current measurement ( "
" button for zeroing.
" position, wait about 5 to 10 minutes before
" doesn't appear) indicates that the current
16
" button again.
" appears ) .
+
"
+
"