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OPERATION
4F
0.001F
±(4%+5)
40F
0.01F
100F
0.1F
±(8%+5)
Overload Protection:
600V DC/AC rms
NOTE:
Accuracy does not include error caused by the
capacitance of test lead and the meter. To reduce the
error, use Relative mode. For range 100F, wait about 30
seconds for reading to settle.
DIODE TEST
Range
Introduction Remark
2V
The approximate forward
voltage drop of the diode
will be displayed.
If the voltage drop is more
than 2.0V, the display
shows the over-
range indicator "OL".
Open Circuit
Voltage: about
2.4V
Short Circuit
Current: <
0.6mA
Overload Protection:
600V DC/AC rms
CONTINUITY TEST
Range
Introduction Remark
The built-in buzzer will
sound if the resistance
is less than about 20.
The buzzer will not sound
if the resistance is more
than 150.
Open Circuit
Voltage:
about 0.45V
Overload Protection:
600V DC/AC rms
WARNING
Do not take readings unless the battery door is
securely closed.
USING RELATIVE MODE
(
See Figure 4.)
Selecting Relative Mode stores the present reading as
a reference for subsequent measurements and sets the
dis play to zero (0).
Q
To enter Relative Mode, press the
REL
button. The
symbol "
" will appear on the LCD display.
Q
When you perform a new measurement, the display
shows the difference between the first (reference)
and the new measurement.
Q
Press
REL
again to exit Relative mode and clear
the symbol.
NOTE:
For capacitance measurements, the meter
remains in Autorange mode when you select Relative
mode. The actual capacitance to be measured must
not exceed 100F even if you use Relative mode.
For other measurements which have both Autorange
mode and Manual Range mode, the meter changes to
Manual Range mode when you select Relative mode.
The actual value of the object under test must not exceed
the full-range reading of the selected range when you
use Relative mode. Use a higher measurement range if
necessary.
MANUAL RANGING AND AUTORANGING
See Figure 4.
The meter defaults to Autorange mode in measurement
functions which have both Autorange mode and Manual
range mode. When the meter is in Autorange mode,
AUTO
is displayed.
Q
Press the
RANGE
button to enter the manual range
mode. The
AUTO
symbol will disappear.
Q
Each press of the
RANGE
button increases the
range. When the highest range is reached, the meter
wraps to the lowest range.
Q
To exit the manual range mode, press and hold down
the
RANGE
button for about 2 seconds. The meter
will return to Autorange mode and the symbol
AUTO
will appear.
NOTE:
The
RANGE
button is disabled in diode,
continuity and capacitance measurement functions.
DATA HOLD MODE
(
See Figure 4.)
Q
Press the
HOLD
button to hold the present reading
on the display. The symbol
HOLD
will appear on the
display as an indicator.
Q
Press the button again to exit Data Hold mode. The
symbol
HOLD
will disappear.
BUILT-IN BUZZER
Q
When you press a button, the built-in buzzer will
sound a beep if the press is effective.
Q
The buzzer will beep several times about 1 minute
before the meter turns off automatically, and give 1
long beep before the meter turns off automatically.
ALLIGATOR CLIPS
(
See Figure 5.)
A set of alligator clips is included with the multimeter, one
for the black lead, and another for the red lead. When
you want the meter to remain connected to a circuit, but
want to keep your hands free for other operations, the
alligator clips will hold the leads in place.
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Содержание RP4020
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