5
Range
Displaying value
Test condition
Positive voltage
drop of diode
The positive DC
current is approx.
1mA
，
negative voltage
is approx. 3V
Buzzer sounds ,
the resistance is
less than(50±20)
Ω
open voltage is approx.
3V
Overload protection: 250V DC or AC peak value
Warning: DO NOT input any voltage at this range for safety!
3 OPERATION
3.1 Front panel description
3.1.1 LCD: display the measured value.
3.1.2 Power/auto power off key:
turn on/off
the power and auto power off.
3.1.3 Hold/backlight/function selecting key:
turn on/off hold and backlight key.
3.1.4 Range knob: selecting measuring
function and range .
3.1.5 GND.
3.1.6 10A current test jack.
3.1.7
“+” pole jack of voltage
、
resistance
、
diode
、
capacitance and resistance.
3.2 VOLTAGE MEASUREMENT
3.2.1
Insert the black test lead to “COM” jack, the red one to V/Ω/Hz jack.
3.2.2 Set the range knob to a proper DCV/ACV range, If the measured
voltage is unsure beforehand, set the range knob to the highest
range,
then reduce it gradually until get the highest resolution
readings.
3.2.3 Apply the test leads to the test point ,the LCD displays the
measured voltage value.
NOTE:
a.
If LCD displays “OL”, it means over range, set the range knob to a
higher range.
b.
Do not input a voltage over 600V DCA or 600V ACV, the test leads
should be off the test point when switching the function and range.
c.
Do not touch a high voltage circuit when measuring high voltage .
