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6-7 Frequency
Range
Accuracy
5.12Hz
51.2Hz
512Hz
5.12kHz
± (0.1% of rdg + 5 digits)
51.2kHz
512kHz
5.12MHz
-- Sensitivity: sine wave 0.6V rms (5.12MHz: 1.5V rms)
-- Overload protection: 500V DC or AC rms
6-8 Duty cycle
0.1%～99.9%: ± ( 2.0% of rdg + 2 digits ), Frequency lower than 10kHz
-- Sensitivity: sine wave 0.6V rms
-- Overload protection: 500V DC or AC rms
6-9 Diode and Audible continuity test
Range
Description
Display read approximately
forward voltage of diode
Built-in buzzer sounds if
resistance is less than 100Ω
Overload protection: 500V DC or AC rms
6-10 Non Contact AC Voltage (NCV) detection
Test voltage range: 90V～1000V AC rms
The NCV red light and green light will light up alternately together with sound.
7. OPERATING INSTRUCTIONS
7-1 Attention before operation
7-1-1 Check battery. When the battery voltage drop below proper operation
range, the "
" symbol will appear on the LCD display and the battery need to
changed.
7-1-2 Pay attention to the " " besides the input jack which shows that the input
voltage or current should be within the specified value.
7-1-3 The range switch should be positioned to desired range for measurement
before operation.
7-2 Measuring DC Voltage
7-2-1 Connect the black test lead to COM jack and the red to VΩmA jack.
7-2-2 Set the rotary switch at the desired V
7-2-3 Connect test leads across the source or load under measurement.
7-2-4 You can get reading from LCD. The polarity of the red lead connection will
be indicated along with the voltage value.
NOTE:
1." " means you can't input the voltage more than 600V, it's possible to show
higher voltage, but it may destroy the inner circuit or pose a shock.
2. Be cautious against shock when measuring high Voltage.
7-3 Measuring AC Voltage
7-3-1 Connect the black test lead to COM jack and the red to VΩmA jack.
7-3-2 Set the rotary switch at the desired V
7-3-3 Connect test leads across the source or load under measurement.
7-3-4 You can get reading from LCD.
NOTE:
1." " means you can't input the voltage more than 600V, it's possible to show
higher voltage, but it may destroy the inner circuit or pose a shock.
2. Be cautious against shock when measuring high Voltage.
7-4 Measuring DC & AC Current
7-4-1 Connect the black test lead to COM jack and the red to the VΩmA jack for
a maximum 400mA current , for a maximum 6A or 10A current, move the red
lead to the 10A jack.
7-4-2 Set the rotary switch at the desired "uA
position, it shows symbol for testing DC current, if you want to test AC current,
push "SELECT" button switch.
7-4-3 Connect test leads in series with the load under measurement.
7-4-4 You can get reading from LCD. The polarity of the red lead connection will
be indicated along with the DC current value.
NOTE:
1. When the value scale to be measured is unknown beforehand, set the range
selector at the highest position.
2. When only "OL" is displayed, it indicates over-range situation and the higher
range has to be selected.
3. " " means the socket mA's maximum current is 500mA and 10A's maximum
current is 10A, over 500mA or 10A current can be protected by the fast fuse.
4. On the 10A range, the measuring time should be less than 10 seconds to
prevent precision from affecting by circuit heating.
7-5 Measuring Resistance
7-5-1 Connect the black test lead to COM jack and the red to VΩmA jack.
7-5-2 Set the rotary switch at the desired "Ω" range position.
7-5-3 Connect test leads across the resistance under measurement.
7-5-4 You can get reading from LCD.
NOTE: Max. input overload: 500V rms＜10sec
1. For measuring resistance above 1MΩ, the mete may take a few
seconds to get stable reading.
Resolution
0.001Hz
0.01Hz
0.1Hz
1Hz
10Hz
100Hz
1kHz
Test Condition
Forward DC current
approx. 0.4mA
Reversed DC voltage
approx. 1.5V
Open circuit voltage
approx. 0.5V
range position.
range position.
" & "mA
" & "A
" range
2. When the input is not connected, i.e. at open circuit, the figure 'OL' will be
displayed for the over-range condition.
3. When checking in-circuit resistance, be sure the circuit under test has all
power removed and that all capacitors have been discharged fully.
7-6 Measuring Capacitance
7-6-1 Connect the black test lead to COM jack and the red to VΩmA jack.
7-6-2 Set the rotary switch at the desired "
7-6-3 Connect test leads across the capacitance under measurement.
7-6-4 You can get reading from LCD.
NOTE: Max. input overload: 500V rms＜10sec
1. Capacitors should be discharged before being tested.
2. When testing large capacitance, it will take longer time before the final
indication ( For 200uF range, it will take about 15 seconds ).
3. When testing small capacitance (≤1uF), to assure the measurement
accuracy, first press "REL", then go on measuring.
7-7 Measuring Frequency & Duty cycle
7-7-1 Connect the black test lead to COM jack and the red to VΩmA jack.
7-7-2 Set the rotary switch at the desired "Hz" range position.
7-7-3 Push "Hz/%" key to choose Frequency or Duty cycle test.
7-7-4 Connect the probe across the source or load under measurement.
7-7-5 You can get reading from LCD.
7-8 Diode & Audible continuity Testing
7-8-1 Connect the black test lead to COM jack and the red to VΩmA jack.
7-8-2 Set the rotary switch at the "
choose Diode or Audible continuity measurement.
7-8-3 On diode range, connect the test leads across the diode under
measurement, display shows the approx. forward voltage of this diode.
7-8-4 On Audible continuity range, connect the test leads to two point of circuit,
if the resistance is lower than approx. 100Ω, the buzzer sounds.
NOTE: Make sure the power is cut off and all capacitors need to be discharged
under this measurement.
7-9 Non Contact AC Voltage detection
7-9-1 Power on the meter, on any range, press and hold the "NCV" key, the
meter enters Non Contact AC Voltage (NCV) detection, the NCV green
LED light will light up.
7-9-2 Hold the Meter so that the mater's top is vertically and horizontally
centered and contacting the conductor, when the live voltage ≥ 90V AC
rms, the NCV red LED light and green LED light will light up alternately
together with sound.
NOTE:
1. Even without LED indication, the voltage may still exist. Do not rely on
non-contact voltage detector to determine the presence of voltage wire.
Detection operation may be subject to socket design, insulation thickness and
different type and other factors.
2. When the meter input terminals presence voltage, due to the influence of
presence voltage, voltage sensing indicator may also be bright.
3. Keep the meter away from electrical noise sources during the tests, i.e.,
florescent lights, dimmable lights, motors, etc.. These sources can trigger
Non-Contact AC Voltage detection function and invalidate the test.
8. Battery replacement
8-1 When the battery voltage drop below proper operation range the "
symbol will appear on the LCD display and the battery need to changed.
8-2 Before changing the battery, set the selector switch to "OFF" position and
remove the test leads from the terminals. Open the cover of the battery
cabinet by a screwdriver.
8-3 Replace the old battery with the same type battery (AA R6P 1.5V×2).
8-4 Close the cover of the battery cabinet and fasten the screw.
9. Fuse replacement
9-1 This meter is provided with a 500mA/500V fast fuse to protect the current
measuring circuits which measure up to 400mA, with a 10A/500V fuse to
protect the 10A range.
9-2 Ensure the meter is not connected to any external circuit, set the selector
switch to "OFF" position and remove the test leads from the terminals. Open
the cover of the battery cabinet by a screwdriver.
9-3 Replace the old fuse with the same type and rating: 6×30mm 500mA/500V
fast fuse or 6×30mm 10A/500V fast fuse.
9-4 Close the cover of the battery cabinet and fasten the screw.
10. Maintenance
10-1 You must replace the test leads if the lead is exposed, and should adopt the
leads with the same specifications as origin.
10-2 Use only moist fabric or small amount of detergent but not chemical
solution for cleaning.
10-3 Do not use the meter before the back cover is properly closed and screw
secured. Upon any abnormality, stop operation immediately and send the
meter for maintenance.
10-4 Please take out the battery when not using for a long time.
11. Accessories
[1] Test Leads: electric rating 1000V 10A
[2] Operator's Manual
" range position.
" range position, push "SELECT" to
"
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