Kaiweets KM100 User manual

KM100
DIGITAL MULTIMETER
DIGITAL MULTIMETER
Contact us: [email protected]
KM100

Contents
Introduction.................................................. 1
Safety Operation......................................... 1
Meter Diagram............................................. 3
Production Information............................. 4
Symbol Meaning....................................................4
Button Functions....................................................5
Auto Power Off.......................................................6
Measurement Operation........................... 6
DC/AC voltage measurement..............................6
DC current measurement.....................................7
Resistance measurement.................................... 8
Continuity measurement...................................... 9
Diode measurement........................................... 10
Technical Specifications.........................12
Accuracy Specifications.........................13
DC Voltage........................................................... 13
AC Voltage........................................................... 14
DC Current........................................................... 14
Resistance............................................................15

Continuity&Diode.................................................15
Replace Battery and Fuse...................... 16
Replace Battery................................................... 16
Replace Fuse.......................................................17
Maintenance...............................................17
Clean.....................................................................17

1
Introduction
Thank you for purchasing the KAIWEETS KM100
2000 Counts Digital Multimeter. The Digital Multimeter
is designed to be safely and accurately used by
professionals in a commercial setting or weekend
DIYer’s that need a little more utility from their
standard digital multimeter. This manual provides all
sa f e t y in f o r m a t i o n , op e r a t io n in s t r u c t i o n ,
specifications and maintenance for the meter. The
instrument performs AC/DC Voltage, DC Current,
Resistance, Continuity, Diode Measurement.
NOTE: Fully read and understand this manual
before using this Digital Multimeter.
Safety Operation
WARNING:
To avoid possible electric shock or personal injury and
to avoid possible damage to the meter or to the
equipment being tested, adhere to the following rules:
Please read this manual carefully before using the
instrument, and pay special attention to the safety
warning information.
Before using the meter, inspect the exterior meter.
Look for cracks or missing plastic. Do not use the
meter if it is damaged.
Before using the instrument, please check whether

2
the probe is cracked or damaged. If so, please
replace the same type and the same electrical
specifications.
The instrument shall be used in accordance with
the specified measurement category, voltage or
current rating.
Please comply with local and national safety code.
Wear personal protection equipment (such as
approved rubber gloves, masks and flame
retardant clothes, etc.) to prevent being damaged
by electric shock and electric arc due to exposed
hazardous live conductor.
When the Meter is working at an effective voltage
over 60V in DC or 30V rms in AC, special care
should be taken because there is a danger of
electric shock.
Do not apply more than the rated voltage, as
marked on the meter, between the terminals or
between any terminal and grounding.
By measuring the known voltage to check whether
the meter work is normal, if it is not normal or
damaged, do not use it again.
Use the proper terminals, function, and range for
your measurements.

3
Meter Diagram

4
Production Information
Symbol Meaning
AC (Alternating Current)
DC (Direct Current)
Continuity
Diode Test
Earth Ground
Fuse
Double Insulated
Warning: Important Information
CAT. III
Class III measurement is suitable for
testing and measuring circuits
connected to the distribution part of low
voltage power supply devices in
buildings.

5
Button Functions
Use this switch to select the desired
function and range for measurement.
Press this button to lock the
measurement results, press again to
cancel it.
Long press to turn on the backlight,
long press again to turn off it.
Plug the black test lead into this
terminal.
When the current is less than 200mA,
plug the red test lead in this terminal.
When the current is between 200mA
and 10A, plug the red test lead into this
terminal.

6
Auto Power Off
After turn on the meter, “ ” icon shows on display,
it means the meter will auto power off after 15
minutes without operation, press any key to restore
the working state of the instrument.
Long press “ ” button and turn on the meter,
the automatic shutdown function will be canceled.
“ ” will not display on the screen.
Measurement Operation
DC/AC voltage measurement
1. Turn the knob to “V~” or “V⎓” and select the
appropriate range;
Note: If measuring an unknown voltage, set the
maximum range and reduce it until a satisfactory
reading is obtained.
2. Insert the red probe in “ ” socket, insert the
black probe in “ ”;
3. Connect to the measured power supply or circuit in
parallel, measure the voltage;
4. Read the measurement result on display.
WARNING
Do not measure power supply or circuit greater
than 600V.
Pay attention to safety when measuring high

7
voltage to avoid electric shock or personal
injury.
Measure the known voltage or current before
use to ensure that the instrument functions
well.
DC current measurement
1. Disconnect the circuit to be tested;
2. Turn the knob to “A⎓” and select the appropriate
range;
Note: If the value of current is unknown, use the
maximum measurement position (10A) and reduce
the range until proper readings are obtained.
3. If the current to be measured is less than 200mA,
insert the red test lead into the “ ” socket. If the
current is between 200mA and 10A, insert the red test
lead into the “10A’’ socket, insert the black probe in
“COM” socket;
4. Connect the red and black test leads in series to
the circuit, then turn on the circuit power supply;
Note: For 10A measurements, only take readings for
up to 10 seconds and allow 15 minutes between tests.
This prevents the device from overloading and
overheating.
When testing the current, there must be a load in the
circuit. Do not connect the multimeter in series with