Note:
(1)
In
DC
600mV and
AC
6V
range, even
if
there' s no input
or
test pen connected, the instrument will have several
displays, in this
case,
short circuit the "V -
n"
and
"COM" ,
to
make the instrument display zeroing.
(2)
Under
AC
voltage function,
press
HZ/%
key
to
measure the
frequency
of
AC
voltage source (0HZ~lOKHZ).
(3)
AC
voltage measured with this instrument
is
a true
RMS
(root mean square).
For
sine wave and other waveforms
(without
DC
offset),
such
as
square wave, triangle wave and
staircase wave, such measurements are accurate.
3.2.2 Measuring resistance
&.
In order to avoid any damage to instrument or
measured equipment, before measuring resistance, cut
off
all power supplies
of
the circuit being measured and fully
discharge all high-voltage capacitors.
The
unit
of
resistance
is
ohm (n).
The resistance ranges
of
the instrument
are
namely 600.00,
6.000kn, 60.00kn, 600.0kn, 6.000Mn, and 60.00Mn.
Measure resistance:
1.
Turn
the rotary switch
ton
gear.
2.
Connect the black test pen and the red test pen
to
COM
l
i
\
input socket and V
/n
input socket.
3.
Use·
the test pen
to
measure the resistance
of
the circuit
to
be
tested.
4.
Read
the measured resistance from the
LCD
display.
Note:
(1)
Resistance measured on .the circuit
is
usually different
from the rated value
of
resistance.
(2)
During measurement
of
low resistance, in order
to
guarantee accuracy, first short circuit
two
pens and read
the resistance
for
pen short circuit, and
it
is
required
to
reduce
such
resistance after measuring the resistance.
(3)
In 60Mn, reading could
be
stable only after several
seconds. This
is
normal
to
high resistance measurement.
(4) When the instrument
is
of
open circuit, the display will
indicator 'OL", indicating the measured value exceeds the
range.
3.2.3
Measuring
diode
&, In order to avoid any damage to instrument or
measured equipment, before measuring diode, cut
off
all power supplies of the circuit being measured and
fully discharge all high-voltage capacitors.
I
I
.
..,
.
,.
t
.:
.•t
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