21
22
23
24
5.
Turn off power to the circuit, discharge all high-voltage capacitors.
6.
Break the circuit path to be tested. Touch the black test lead to more negative side of the break. Touch
the red test lead to the more positive side of the break.
7.
Turn on power to the circuit, then read the display.
8.
Primary and secondary display as Table 9.
Table 9. Primary and secondary display.
Press
Secondary
SELECT
Primary
[ press 2nd VIEW ]
DCA
DCA
ACA
ACA
DCA+ACA
DCA+ACA
ACA
ACA+Hz
ACA
Hz
9.
Turn off power to the circuit and discharge all high-voltage capacitors. Remove the meter and restore
thc circuit to normal operation. Pull out the red test lead from “10A” terminal.
l
Resistance Measurement
Caution
To avoid damage to meter or to the equipment under test,disconneet circuit power and discharge
all high-voltage capacitors before measuring resistance.
The measurement of resistance has three modes : normal, continuity and Hi resistance. Use SELECT
button to select these mode.
l
Normal mode
1,
Set the rotary switch to “
V
” position.
2.
Connect the black test lead to “COM” terminal and the red test lead to “V
V
Hz” terminal.
3.
Touch the probes to the test points and reading display.
Note : The test leads can add 0.1
V
~ 0.5
V
of error to resistance measurement, please short test leads
and press REL
r
4. According to your need can press REL
r
MAX / MIN buttons obtain relevant measurement.
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Continuity mode
At normal mode press SELECT until “
” sign appear on the display screen. If checking point resistance
fall below 50
V
the beeper will sound.
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Hi resistance mode
At normal mode press SELECT until “Hi” sign appear on display
screen. Using this function can measure above 80M
V
resistance.
Figure 10.
resistance measurement
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Capacitance Measurement
Caution
To avoid damage to the meter or to the equipment under test disconnect circuit power and
discharge all high-voltage capacitors before messuring capacitance. Use the DC voltage function
to confirm that the capacitor is discharged.
1.
Set the rotary switch to “
” position.
2.
Connect the black test lead to “COM” terminal and the red test lead to “V
V
Hz” terminal.
3.
Touch the robes to capacitor’s legs, if the capacitor is a polarity.
The red test lead to the positive leg.
4.
Press RANGE option your range, with this method can speedup
measurements of similar values.
5.
According to your need can press REL
r
MAX / MIN buttons
obtain relevant measurement.
Figure 11. capacitance
measurement
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Frequency and rotational speed (RPM) measurement
1.
Set the rotary switch to “Hz” position.
2.
Press SELECT to select normal, Hi Hz and RPM three Measuring Mode.
3.
Connect the probes to signal source and reading display.
4.
In normal mode the meter auto ranges to one af six frequencies : 999.99Hz / 9.9999kHz /
99.999kHz / 999.99kHz / 8.0000MHz.
5.
Press 2nd VIEW can change
%/
%/
ms/
ms.
6.
In Hi Hz mode, using Hi frequency accessory to measure
more than10MHz Frequency. The reading is 10-Digit counter
primary d second display .
7.
In RPM mode using rotational speed accessory to measure
rotational speed and reading is RPM.
Figure 12. freq. and rotational
speed measurement
