2 .Define the transistor is NPN or PNP type, insert the emitter, base and collector
separately to the correct hole, the approx. value will be displayed on LCD.
4-10. Diode and continuity Test
1. Insert the black leads to “COM” socket and the red one to “VΩHz” socket( the
polarity of the red one is “+”).
2. Set the FUNCTION switch to “ ” position. Press
“ DC/AC ”key to select diode measuring.
3. Forward measurement: connect the red test leads to the “+” polarity of the diode
under tested and the black one to “-“, the approx. forward voltage of this diode will
be displayed on LCD.
4 Backward measurement: connect the red test lead to the “-“ of the diode and the
black one to “+”, and LCD will displayed OL. The completely measurement
includes forward and backward measurement, if the result can not meet with the
above, it means the diode is workless.
5.Diode test include forward measurement and backward measurement, if the result
is different with above, the diode is bad.
6.press “DC/AC” key to select continuity test.
7.Continuity test: the buzzer sounds when the resistance under measured is less
than (70+10)Ω.
Note:
1. Do not input voltage at this range.
2. Turn off the power and release all capacitors when testing in line.
4-11. Temperature measurement
1. Set the function switch to “℃” range.
2.Insert the cold point of thermocouple too “Temp” socket and the working point to
the place wanted to take temperature, the value will be displayed on LCD.
NOTE:
1. When the input terminal is in open circuit, will display the “ normal temp.”
2. Do not change the thermocouple, or, the accuracy can not be secured.
3. Do not input voltage at this range.
4-12.DATA HOLD
Press “ HOLD” key once, the current data will be hold on LCD, press it again, data
is canceled.
4-13 Auto power off
1.When operating after 15 minutes, the meter will be auto power off and into sleep mode;
Press “POWER AUTO OFF” key twice can turn the power on
2.press “DC/AC” key before turn on, it can cancel auto power off function.
MAINTENANCE
Do not try to modify the inner circuit.
NOTE:
1. Do not input a voltage over 1000V DC/AC peak value.
2. Do not measure voltage at current range, resistance range, diode and buzzer range.
3. Do not use the meter if the battery is not replaced well or the battery case is not fixed.
4. Before replacing battery or fuse, release the test leads from the test point and turn power
off.
5.Keep the multimember dry. Keep the multi-meter away from dust and dirt
6.Use and store the multi-meter only in normal temperature environments. Temperature
extremes can shorten the life of electronic devices, damage batteries, and distort or melt
plastic part.
7.Handle the multiyear gently and carefully. Dropping it can damage the circuit boards and
case and can cause the multi-meter to work improperly although the holster can provide
enough protection.
8.Wipe the multi-meter with a damp cloth occasionally to keep it looking new. Do not use
harsh chemicals, cleaning solvents, or strong detergents to clean the multi-meter.
9. Take out off the battery if do not use for a long time. When LCD displays “ ”, the
battery should be replaced.
9.1 ref.pic.2 to take
out the holster.
9.2 Remove the
screw on the bottom
case and lift the
bottom case.
9.3 Remove the spent
battery and replace it
with a battery of the
same type.
10. Replace the fuse with same type and rating as the replacements.
六. If the meter does not work properly, check the meter as following:
Power is off
HOLD key
Replace battery
The specifications are subject to change without notice.
The content of this manual is regarded as correct, error
or omits Pls. contact with factory.
We hereby will not be responsible for the accident and
damage caused by improper operation.
The function stated for this User Manual cannot be the
reason of special usage.