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 ” range position.
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. When the value scale to be measured is unknown
beforehand, set the range selector at the highest position.
2. When only the figure’1’ or ‘-1’ is displayed, it indicates
over-range situation and the higher range has to be
selected.
3. “ ” 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.
4. 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~” range position.
7-3-3 Connect test leads across the source or load under
measurement.
7-3-4 You can get reading from LCD.
NOTE:
1. When the value scale to be measured is unknown
beforehand, set the range selector at the highest position.
2. When only the figure ’1’ is displayed, it indicates over-range
situation and the higher range has to be selected.
3. “ ” 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.
4. Be cautious against shock when measuring high Voltage.
7-4 Measuring DC Current
7-4-1 Connect the black test lead to “COM ”jack and the red to
the “VΩmA” jack for a maximum 200mA current , for a
maximum 10A current, move the red lead to the 10A jack.
7-4-2 Set the rotary switch at the desired “A ” range position.
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 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 the figure’1’ or ‘-1’ is displayed, it indicates
over-range situation and the higher range has to be
selected.
3. “ ” means the socket mA’s maximum current is 200mA
and 10A’s maximum current is 10A, over current will
destroy the fuse. Since 10A is not fused, the measuring
time should be less than 1 second 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:
1. When only the figure’1’ or ‘-1’ is displayed, it indicates
over-range situation and the higher range has to be
selected.
2. For measuring resistance above 1MΩ, the mete may take a
few seconds to get stable reading.
3. When the input is not connected, i.e. at open circuit, the
figure ‘1’ will be displayed for the over-range condition.
4. When checking in-circuit resistance, be sure the circuit
under test has all power removed and that all capacitors
have been discharged fully.
5. the value scale to be measured is unknown beforehand,
set the range selector at the highest position.
6. Under the Low Resistance Range, the Users are reques
ted to short the meter probes to get the resistance of test l
eads, which is needed to deduct from this measurement.
7-6 Transistor Testing
7-6-1 Set the rotary switch at “hFE” position.
7-6-2 Determine whether the transistor under testing is NPN or
PNP and locate the emitter, base and collector leads. Insert
the leads into proper holes of hFE socket on the front
panel.
7-6-3 Read the approximate hFE value at the testing condition
of base current Ib10uA and Vce 3V.
7-7 Diode Testing
7-7-1 Connect the black test lead to “COM” jack and the red to
“VΩmA ”jack. (the polarity of red lead is ‘+’)
7-7-2 Set the rotary switch at the “ ” range position.
7-7-3 Connect the red lead to the anode and the black lead to
the cathode of the diode under testing.
7-7-4 You can get a reading from LCD.
NOTE:
1. The meter will show approximate forward voltage drop of the
diode.
2. If the lead connections is reversed, only ‘1’ will be displayed.
7-8 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 “ ” range position.
7-8-3 Connect test leads across two points of the circuit
under testing.
7-8-4 If continuity exists (i.e. resistance less than about
120Ω±30Ω), built-in buzzer will sound.
NOTE:
If the input open circuit, the figure “1” will be displayed.
7-9 Measuring Temperature
7-9-1 Set the rotary switch at the “℃” range position.
7-9-2 When measuring temperature ,Insert ‘K’ type
thermocouple probe (red one into “VΩmA” jack and black
one into “COM”jack)
7-9-3 Then put the ‘K’ type into the testing environment.
7-9-4 You can get a reading from LCD the testing temperature
after 10 seconds when the temperature become steady.
NOTE:
Don’t insert ‘K’ type,The LCD will sow the current
temperature of the environment.
8. Maintenance
8-1 Before attempting to remove the battery door or open the
case, be sure that test leads have been disconnected from
measurement circuit top avoid electric shock hazard.
8-2 To avoid electrical shock, remove test leads from
measurement circuits before replacing the fuse. For
protection against fire, replace fuses only with specified
ratings: F-200mA/250V fuse.
8-3 Your must replace the test leads if the lead is exposed, and
should adopt the leads with the same specifications as origin.
8-4 Use only moist fabric or small amount of detergent but not
chemical solution for cleaning.
8-5 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.
9. Accessories
[1] Test Leads: electric rating 1000V 10A
[2] Battery: 9V, 6F22 or NEDA 1604
[3] Fuse: F-200mA/250V
[5] Operator’s Manual
[6] Holster
[7]K type
