Kusam-meco KM 6030 User manual

OPERATION
MANUAL
DIGITAL
MULTIMETER
KM 6030
An ISO 9001:2008 Company
17, Bharat Industrial Estate, T. J. Road, Sewree (W),
Mumbai-400015. INDIA
Sales Direct: 24156638 (022)2412 4540, 2418 1649 2414 9659
E-mail : [email protected], Website : www.kusamelectrical.com,
www.kusam-meco.co.in
Tel.: Fax:
Digital Multimeter
Digital AC & AC/DC Clampmeter
AC Clamp Adaptor
AC/DC Current Adaptor
Transistorised Electronic Analog & Digital
Insulation Resistance Testers(upto 10 KV)
Digital Sound Level Meter & Sound Level
Calibrator
Digital contact & Non-contact Type
Tachometer
Digital Non-contact (infrared) Thermometer
Thermo Hygrometer
Thermo Anemometer
Wood & Paper Moisture Meter
Distance Meter
Digital Hand Held Temperature Indicators
Digital Lux Meter
Network Cable Tester
Power Factor Regulator
Maximum Demand Controller/Digital Power
Meter
Earth Resistance Tester
LIST OF PRODUCTS
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OPERATION MANUAL
DIGITAL
MULTIMETER
KM 6030
Nearly every electrical engineer has a hand held
Multimeter. We sometimes take them for granted, until
we damage them or “burn them out” if you incorrectly
connect your DMM to a circuit or have the DMM on
wrong setting, you damage the meter and possibly hurt
yourself. You can also get into trouble if you try to
measure the voltage across a charged capacitor.
DMM users frequently burn their meters by trying
to measure current the same way as they measure
voltage, Remember, you measure voltage across a
circuit, and current through a circuit. When you use the
current input, your DMM becomes a lower impedance
circuit element. If you accidentally connect this low
impedance path across your circuit, you’ll effectively
short-circuit it. You can, therefore send high current
through your meter and severely damage it. Unless the
meter has a fused input, you can even get an explosion
or fire.
Even if you correctly insert your DMM into the
circuit, you can still damage your meter. Don’t try to
measure current in excess of your meter’s capacity.
Handheld DMMs usually have a maximum current
rating of 10Aor 20A.
If you are measuring current in industrial
environment, you can easily exceed those ratings. The
best way to avoid damage is to use a clamp meter or to
connect a clamp attachment to your DMM.
To prevent excess current from flowing through
your meter, always disconnect the test leads from the
circuit under test whenever you change DMM
functions, Set your meter to the correct function, say
current and its highest range for the setting, say 20A.
Next, connect the test leads before you apply power to
the circuit. To be safe, start by setting your meter to its
highest range first.
TAKE MEASUREMENT CAREFULLY AND YOU’LL
SPARE YOUR METER AND YOURSELF, SOME PAIN

Table of Contents
Title Page
Overview ....................................................1
Unpacking Inspection................................1
Features......................................................2
General Specifications..............................3
Electrical Specifications............................4
A. DC Voltage
B. AC Voltage
C. AC Current
D. DC Current
E. Resistance
F. Capacitance
G. Temperature
H. Frequency
I. Transistor hFE Test
J. Diode Test & Continuity
Rules For Safe Operation..........................7
International Electrical Symbols...............8
The Multimeter Structure...........................9
Functional Buttons....................................10
Display Symbols........................................11
Measurement Operation
A. DC Voltage ...............................12
B. AC Voltage................................13
C. AC Current................................15
D. DC Current................................16
E. Resistance................................18
F. Capacitance..............................20
G. Temperature..............................21
H. Frequency.................................22
I. Diode Test & Continuity.............23
J. Transistor hFE Test...................25
Maintenance..............................................26
A. Replacing the Battery
Test Certificate..........................................27
Warranty....................................................28
OVERVIEW
Warning
To avoid electric shock or personal injury, read
the “Safety Information” and “Rules for Safe
Operation”carefully before using the Meter.
Digital Multimeter Model - 6030 (hereafter referred to
as “the Meter”) is a 3½ digits Multimeter with steady
operations, and highly reliable hand-held measuring
instrument having different measurement positions.
The Multimeter not only can measure AC/DC
Voltage, AC/DC Current, Resistance, Capacitance,
Frequency, Temperature, Transistor hFE Test, Diode
Test, but also has Data Hold, Range & function
selection & backlight display.
Terms in this manual
Warning : Identifies conditions and actions
that could result in serious injury or
even death to the user.
Caution : Identifies conditions and actions
that could cause damage or
Malfunction in the instrument.
Unpacking Inspection
Open the package case and take out the Multimeter.
Check the following items carefully to see any missing
or damaged part :
!
!
1
Item Description Qty.
1 English Operating Manual 1 piece
2 Test Lead 1 pair
3 Temperature Probe 1 piece
In the event you find any part missing or damaged,
please contact your dealer immediately.

FEATURES :
nLow power consumption CMOS double
integration, A/D transform integrated circuit,
Auto Zero Calibration, Auto Polarity display,
Data Hold, Low Battery & Over range
indication.
nDisplay : 3½ digit (2000 Counts) with digit height
28mm and function/units sign annunciators.
nSelected Range displayed on LCD.
nTest lead jack mechanical protection function
& full Range over-load protection function.
nPolarity : Automatic (-) negative polarity
indication.
nAuto Power Off : The meter will shut off
automatically about 15 minutes after power is ON
if the meter is not in use.
nHigh Accuracy - Digital Reading.
nInstant Continuity Buzzer.
nOverload Protection in all Ranges.
nRecessed Safety Designed Input Jacks.
n“DATA - HOLD ” switch freezes reading.
nBack light display .
nRange & Function Selection.
2
GENERAL SPECIFICATIONS :
Display : 3½ digit LCD. Maximum
reading 2000 with
automatic sign and
Function annunciators.
Digital Size : 28mm(H)
Overrange indication : Highest digit of (1) or (-1)
is displayed.
Low battery : The “ ” sign is
Displayed when the battery
Voltage drops below the
operating Voltage.
Measurement rate : 2.5 measurements
per Second, nominal.
Operating temperature : 0°C to + 50°C, <70% RH.
Storage temperature : -20°C to 60°C, <80% RH
with battery removed.
Accuracy : Accuracy specifications at
23 ± 5°C less than 75% RH.
Power : Single 9 V Battery.
Dimension : 192mm (L),88mm(W),
42mm(H)
Weight : Approx (600 grams)
including battery
Accessories : Test leads, Operators
Manual, Battery,
Carrying Case,
Protective Holster,
Temp. Probe.
- +
3

ELECTRICAL SPECIFICATION :
AC VOLTAGE
Input Impedance : 10MW
Frequency range : 40Hz~ 400Hz(it is 40Hz-100Hz in 200V,
750V range position)
Overload Protection :250V(for 200mV),DC or AC
peak value,1000V on all other ranges.
Input Impedance : 10MW
Overload Protection : 250V(for 200mV),DC or AC
Peak value, 1000V( for other range)
Accuracy
±(0.5% rdg + 3dgts)
±(0.8% rdg + 3dgts)
Resolution
100 mV
1 mV
10 mV
1 V
100 mV
Range
200 mV
2 V
20 V
1000 V
200 V
DC VOLTAGE
Accuracy
±(0.8% rdg +3 dgts)
±(1.2% rdg + 5 dgts)
Resolution
1 mV
10 mV
100 mV
1 V
Range
2 V
20 V
200 V
700 V
Overload Protection: 0.2A/250 V fuse
Max input current : 20A
AC CURRENT (40Hz~400Hz)
Accuracy
±(1.8% rdg + 3 dgts)
±(1.0% rdg +3dgts)
±(3.0% rdg +7dgts)
Resolution
1 mA
100 mA
10 mA
10 mA
Range
2 mA
200 mA
20 mA
20 A
4
CAPACITANCE
Frequency Measurement: Approx.400Hz
Voltage Measurement : Approx. 40mV
Accuracy
±(3.0% rdg + 3 dgts)
±(5.0% rdg + 3 dgts)
±(0.8% rdg + 3 dgts)
Resolution
1 pF
10 pF
100 pF
100 hF
1 hF
Range
2 hF
20 hF
200 hF
200 mF
2 mF
Overload Protection: 0.2A/250 V fuse
Max input current : 20A
DC CURRENT
RESISTANCE
Overload Protection : 250V DC or AC peak value.
Open circuit voltage: <1V.
Accuracy
±(0.8% rdg +3 dgts)
±(0.8% rdg + 2 dgts)
+(1.0% rdg + 5 dgts)
Range
200 W
2 KW
20 KW
200KW
2 MW
20 MW
Resolution
0.1 W
1 W
10 W
100 W
1 KW
10 KW
Accuracy
±(1.2% rdg + 2dgts)
±(0.8% rdg +2dgts)
±(2% rdg +5dgts)
Resolution
1 mA
100 mA
10 mA
10 mA
Range
2 mA
200 mA
20 mA
20 A
5

DIODE AND CONTINUITY MEASUREMENT
Description
Indicate approx forward-way
voltage drop of diode
The buzzer inside sounds
when continuity resistance
is about <50W
Forward-way current is
approx. 1mA contray-
way voltage is approx.
2.8 V. Open circuit
voltage is approx. 2.8V.
Overload Protection : 250 V AC or DC peak value.
Accuracy
±(0.75% rdg + 4dgts)
±(1.5%rdg + 15dgts)
Resolution
1°C
Range
-40°C~400°C
400°C~1000°C
TEMPERATURE
Accuracy
±(2.0% rdg + 5dgts)
Resolution
1 Hz
Range
2 KHz
FREQUENCY
Overload Protection : 500 V DC or AC peak value.
Input Sensitivity : 150 mV rms
Range Description
hFE
TRANSISTOR hFE MEASUREMENT
It can measure NPN
or PNP type of transistor
triode hFE parameter.
Indication range : 0~1000
1b approx. 10uA,
Vec approx. 2.8 V
6
Rules For Safe Operation (1)
Warning
To avoid possible electric shock or personal
injury, and to avoid possible damage to the Meter
or to the equipment under test, adhere to the
following rules :
!Before using the Meter inspect the case. Do not
use the Meter if it is damaged or the case (or part
of the case) is removed. Look for cracks or
missing plastic. Pay attention to the insulation
around the connectors.
!Inspect the test leads for damaged insulation or
exposed metal. Check the test leads for
Continuity. Replace damaged test leads with
identical electrical Specifications before using the
Meter.
!Do not apply more than the rated voltage, as
marked on the Meter, between the terminals or
between any terminal and grounding.
!The rotary switch should be placed in the right
position and no any changeover of range shall be
made while measurement is conducted to prevent
damage of the Meter.
!When measurement is taken at an effective voltage
over 60V in DC or 30V rms in AC, special care
should be takenforthereisdanger of electric shock.
!Use the proper terminals, function, and range for
your measurements.
!Do not use or store the Meter in an environment of
high tempe r ature, humid i ty, e x plosiv e,
inflammable and strong magnetic field. The
performance of the Meter may deteriorate after
the meter is dampened.
!When using the test leads, keep your fingers
behind the finger guards.
!
7

Rules For Safe Operation (2)
!Disconnect circuit power and discharge all high
-voltage capacitors before testing resistance,
continuity, diodes, current or capacitance.
!Replace the battery as soon as the battery
indicator appears. With a low battery, the
Meter might produce false readings that can lead
to electric shock and personal injury.
!Turn the Meter power off when it is not in use and
take out the battery when not using for a long
time.
!Constantly check the battery as it may leak when
it has not been used for some time, replace the
battery as soon as leaking appears. A leaking
battery will damage the Meter.
- +
AC (Alternating Current).
DC (Direct Current).
Both DC & AC.
Grounding.
Double Insulated.
Deficiency of Built-In Battery.
Continuity Test.
Diode.
Fuse.
Warning ! Refer to the Operating Manual.
Caution ! Risk of Electric Shock.
~
~
- +
!
International Electrical Symbols
8
The Multimeter Structure (see figure 1)
( Figure 1)
1) LCD DISPLAY :
A 3½ digit display (maximum reading 1999)
indicates measured values, and features symbols
indicating function, Low Battery,Continuity, Diode.
2) FUNCTION SELECTOR :
To Select ACV, DCV, ACA, DCA, Resistance,
Capacitance, Temperature, Frequency, Diode,
Continuity & Transistor Test.
3) INPUT JACKS (VW,mA,Aand COM) :
Test leads are inserted into these jacks for
Voltage, Resistance, Current measurements,
Continuity & Diode Checks.
4) POWER SWITCH :
A push button (ON/OFF) POWER switch will `
switch ON or switch OFF the multimeter.
5) DATA HOLD SWITCH :
A push button ( ON/OFF) Data-Hold switch
will freeze reading when pressed.
6030
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 15SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
700V AC
MAX
!
!
!
1
7
2
4
6
8
5
3
9
10
11
1999
9

Display Symbols (see figure 2)
( Figure 2)
H
. . .
9
9
91
~
6) BACK LIGHT SWITCH:
To turn OFF or ON the back light so that readings
Can be taken in the dark.
7) FUNCTION SELECTOR:
To select various functions
8) INPUT SOCKET FOR TEMPERATURE
MEASUREMENT :
Temperature Probes are inserted into these jacks
and the other end is connected to the point
where the temperature is to be measured.
9) INPUT SOCKET FOR CAPACITANCE
MEASUREMENT :
Capacitors are inserted into these jacks
whose capacitance is to be measured.
10) INPUT SOCKET FOR TRANSISTOR TEST.
11) PROTECTIVE HOLSTER :
Prevents the instrument from damage.
the hand while in use.
10
H
Symbol
No.
1
2
3
4
5
6
7
8
9
10
Meaning
Dangerous Voltages.
Indicator for AC voltage or
current, The displayed value
is the mean value.
Indicates negative reading.
Test of diode.
Data Hold is active.
The continuity buzzer is on.
A : Amperes (amps). The unit
of current.
V : Volts. The unit of voltage.
Hz : The unit of frequency.
mV, V
Hz
- +
~
!
mA, A
The battery is low.
Warning : To avoid false
readings, which could lead to
possible electric shock or
personal injury, replace the
battery as soon as the battery
indicator appears.
11 W, kW,
W: Ohm. The unit of
resistance.
3
KW: kilohm. 1 x 10 or
1000 ohms.
12
13
°C
hF,mF
°C : The unit of temperature.
The unit of capacitance.
11

MEASUREMENT OPERATION
nMake sure the Low Battery display is not on,
otherwise false readings may be provided.
nPay extra attention to the symbol which is located
besides the input terminals of the Meter before carrying
out measurement.
A. DC voltage measurement (see figure 3)
Warning
To avoid harms to you or damages to the Meter from
electric shock, please do not attempt to measure
voltages higher than 1000VDC or 700V rms although
readings may be obtained.
The DC Voltage ranges are :200mV, 2V, 20V, 200V, 1000V.
To measure DC voltage, connect the Meter as follows :
1) Insert the red test lead into the VWinput terminal and
the black test lead into the COM input terminal
2) Set the rotary switch to an appropriate measurement
position in V range.
3) Connect the test leads across with the object being
measured.
The measured value is shown on the display.
- +
!
!
( Figure 3 )
12
6030
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 15SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
700V AC
MAX
!
!
!RedBlack
Caution :
nIf the value of voltage to be measured is
unknown, use the maximum measurement
position (1000V) and reduce the range step by
step until a satisfactory reading is obtained.
nThe LCD displays “1” indicating the existing
selected range is overloaded, it is required to
select a higher range in order to obtain a correct
reading.
nIn each range, the Meter has an input impedance
of approx. 10MW. This loading effect can cause
measurement errors in high impedance circuits.
If the circuit impedance is less than or equal to
10kW, the error is negligible (0.1% or less).
nWhen DC voltage measurement has been
completed, disconnect the connection between
the testing leads and the circuit under test.
B. AC Voltage Measurement (see figure 4)
( figure 4)
13
6030
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 15SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
700V AC
MAX
!
!
!RedBlack
~

Warning :
To avoid harm to you or damages to the Meter
from electric shock, please do not attempt to
measure voltages higher than 1000V or 700V rms
although readings may be obtained.
The AC Voltage measurement has 4 measurement
positions on the rotary switch : 2V, 20V, 200V and
700V
To measure AC Voltage, connect the Meter as
follows :
1) Insert the red test lead into the VWterminal
and the black test lead into the COM terminal.
2) Set the rotary switch to an appropriate
measurement position in V ~ range.
3) Connect the test leads across with the object
being measured.
The measured value is shown on the display,
which is effective value of sine wave (mean value
response).
Caution :
nIf the value of voltage to be measured is
unknown, use the maximum measurement
position (700V) and reduce the range step by
step until a satisfactory reading is obtained.
nThe LCD displays “ 1 “ indicating the existing
selected range is overloaded, it is required to
select a higher range in order to obtain a correct
reading.
nWhen AC Voltage measurement has been
completed, disconnect the connection between
the testing leads and the circuit under test.
!
14
C. AC Current Measurement (see figure 5)
Warning :
Never attempt an in - circuit current measurement
where the open circuit voltage between terminals and
ground is greater than 60V DC or 30V rms. If the fuse
burns out during measurement, the Meter may be
damaged or the operator himself may be hurt. Use
proper terminals, function, and range for the
measurement. When the testing leads are connected
to the current terminals, do not parallel them across
any circuit.
The AC current measurement has 4 measurement
positions on the rotary switch : 2mA, 20mA, 200mA,
20A.
To measure AC Current, connect the meter as
follows :
!(figure 5)
nWhen AC Voltage measurement has been
completed, disconnect the connection between
the testing leads and the circuit under test.
15
Supply
Load
6030
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 15SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
700V AC
MAX
!
!
!

1) Turn off power to the circuit. Discharge all
High - Voltage capacitors.
2) Insert the red test lead into the mA or 20A
terminal and the black test lead into the COM
terminal
3) Set the rotary switch to an appropriate
measurement position in Current range.
4) Break the current path to be tested. Connect the
red test lead to the positive side of the path and
the black test lead to the negative side of the
path.
5) Turn on power to the circuit.
The measured value is shown on the display.
Caution
nIf the value of current to be measured is
unknown, use the maximum measurement
position (20A) and 20A terminal, and reduce the
range step by step until a satisfactory reading is
obtained.
nWhen current measurement has been
completed, disconnect the connection between
the testing leads and the circuit under test.
(figure 6)
D. DC Current Measurement (see figure 6)
16
Supply
Load
6030
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 15SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
700V AC
MAX
!
!
!
Warning :
Never attempt an in - circuit current measurement
where the open circuit voltage between terminals and
ground is greater than 60V DC or 30V rms. If the fuse
burns out during measurement, the Meter may be
damaged or the operator himself may be hurt. Use
proper terminals, function, and range for the
measurement. When the testing leads are connected
to the current terminals, do not parallel them across
any circuit.
The DC current measurement has 4 measurement
positions on the rotary switch : 2mA, 20mA, 200mA,
20A.
To measure DC Current, connect the meter as
follows :
1) Turn off power to the circuit. Discharge all
High - Voltage capacitors.
2) Insert the red test lead into the mA or 20A
terminal and the black test lead into the COM
terminal
3) Set the rotary switch to an appropriate
measurement position in Current range.
4) Break the current path to be tested. Connect
the red test lead to the positive side of the
path and the black test lead to the negative
side of the path.
5) Turn on power to the circuit.
The measured value is shown on the display.
17
!

Caution
nIf the value of current to be measured is
unknown, use the maximum measurement
position (20A) and 20A terminal, and reduce
the range step by step until a satisfactory
reading is obtained.
nWhen current measurement has been
completed, disconnect the connection
between the testing leads and the circuit
under test.
E. Resistance Measurement (see figure 7)
Warning
To avoid damages to the Meter or to the devices
under test, disconnect circuit power and discharge
all the high-voltage capacitors before measuring
resistance.
The resistance range has 6 measurement positions on
the rotary switch : 200W,2KW,20KW,200KW,2MW,
20MW.
!
6030
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 15SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
700V AC
MAX
!
!
!RedBlack
(figure 7)
18
To measure resistance, connect the meter as
follows
1) Insert the red test lead into the VWterminal and
the black test lead into the COM terminal.
2) Set the rotary switch to an appropriate
measurement position in Wrange.
3) Connect the test leads across with the resistance
being measured.
The measured value is shown on the display.
Note :
nThe test leads can add 0.1Wto 0.3Wof error to
the Resistance measurement. To obtain precision
readings in low-resistance, that is the range of
200W,short-circuit the input terminals beforehand
and record the reading obtained (call this reading
as X). (X) is the additional resistance from the test
Lead. Then use the equation :
Measured resistance value (Y) - (X) = precision
Reading of resistance.
nWhen there is no input, for example in open
circuit condition, the Meter displays “ 1”
When resistance measurement has been
completed, disconnect the connection between
the testing leads and the circuit under test.
Caution :
1) Never connect high voltage to the input sockets
with the switch in Resistance range.
2) Using Resistance measurement function in a
Live circuit will produce false results and may
damage the instrument. In many cases the
suspect component must be disconnected from
the circuit to obtain an accurate reading.
19

Caution :
1) Never connect high voltage to the input
Sockets with the switch in Capacitance range.
2) Using Capacitance measurement function in a
Live circuit will produce false results and may
damage the instrument. In many cases the
suspect component must be disconnected from
the circuit to obtain an accurate reading.
6030
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 15SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
700V AC
MAX
!
!
!
G. TEMPERATURE MEASUREMENT (see figure 9)
Temperature measurement range is from - 40°C to
1000°C.
(figure 9)
To measure temperature, connect the Meter as follows:
1) Set the function switch on the “°C” measurement
position.
2) Insert the thermocouple plug into the meter’s
temperature socket.
3) The temp. probe supplied along with the instrument
o
can measure temp. Upto 250 C. To measure temp.
o
above 250 C please request for higher temp.
measurement probe.
21
K Type
Thermocouple
F. Capacitance Measurement (see figure 8)
Warning
To avoid damages to the Meter or to the equipment
under test, disconnect circuit power and discharge all
high-voltage capacitors before measuring
capacitance. Use the DC voltage function to confirm
that the capacitor is discharged. Never attempt to
input over 60V in DC or 30V rms in AC to avoid
personal injury.
Capacitance measurement has 5 measurement
positions on the rotary switch : 2nF, 20nF, 200nF, 2mF
and 200mF.
To measure capacitance, connect the Meter as follows
1) Set the function/range switch on the range
position needed.
!
6030
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 15SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
700V AC
MAX
!
!
!
(figure 8)
20
CX
Cx
Capacitor

6030
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 15SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
700V AC
MAX
!
!
!RedBlack
~
(figure 10)
!
3) Insert the plug with the positive polarity in the
positive socket and the negative polarity
in the negative socket.
4) Set the measurement end of the thermocouple
on the temperature measurement point.
The measured value is shown on the display.
H. Frequency Measurement (see figure 10)
Warning :
To avoid harm to you or damages to the Meter, do not
attempt to measure voltages higher than 60V in DC or
30V rms in AC although reading may be obtained.
When the frequency signal to be tested is higher than
30V rms, the Meter cannot guarantee accuracy of
the measurement.
.
22
The frequency measurement range is 2kHz.
To measure frequency, connect the Meter as follows :
1) Insert the red test lead into the VWterminal and
the black test lead into the COM Terminal.
2) Set the rotary switch in the 2kHz range.
3) Connect the test leads across with the object
being measured.
The measured value is shown on the display.
Caution :
nWhen Hz measurement has been completed,
disconnect the connection between the testing
leads and the circuit under test.
I. Measuring Diodes & Continuity (See figure 11)
Warning
To avoid damage to the Meter or to the equipment under
test, disconnect circuit power and discharge all high-
voltage capacitors before measuring diodes and
continuity.
Testing Diodes
Use the diode test function to check diodes, The diode
test sends a current through the Semiconductor
junction, and then measures the voltage drop across
the junction. A good silicon junction drops between
0.5V and 0.8V.
!
23

To test a diode out of a circuit, connect the
Meter as follows :
1) Insert the red test lead into the VWterminal
and the black test lead into the COM terminal.
2) Set the rotary switch to position.
3) For forward voltage drop reading on any
Semiconductor component, place the red test
lead on the component’s anode and place the
black test lead on the component’s cathode.
The measured value is shown on the display.
Caution :
nIn a circuit, a good diode will produce a
forward voltage drop reading of 0.5V to 0.8V;
However ; the reverse voltage drop reading can
vary depending on the resistance of other
pathways between the probe tips.
nConnect the test leads to the proper terminals as
said above, to avoid error display. The LCD will
display “1” indicating open-circuit for wrong
connection. The unit of diode is Volt (V),
displaying the positive connection voltage-drop
value.
6030
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 15SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
700V AC
MAX
!
!
!RedBlack
(Figure 11)
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nWhen diode testing has been completed,
disconnect the connection between the testing
Leads and the circuit under test.
Testing for Continuity
To test for continuity, connect the Meter as below :
1. Insert the red test lead into VWterminal
and the black test lead into the COM terminal.
2. Set the rotary switch to position
3. Connect the test leads across with the object
being measured.
The buzzer sounds if the resistance of a circuit
under test is less than 50W.
The LCD displays the resistance value of a circuit
under test.
Caution :
nThe LCD displays “1” indicating the circuit being
tested is open.
nWhen continuity testing has been completed,
disconnect the connection between the testing
leads and the circuit under test.
J. Transistor Testing
To test the Transistors, connect the Meter as below :
1. Insert the transistor (NPN or PNP) in the
sockets provided.
2. The measured value is shown on the LCD
Display.
25

MAINTENANCE
Warning
To avoid false reading, replace the battery as soon
as the battery indicator appears.
To replace battery :
nDisconnect the connection between the testing
leads and the circuit under test, and remove the
testing leads away from the input terminals of the
Meter.
nTurn the Meter OFF.
nRemove the screws from the battery
compartment, and separate the battery
compartment from the case bottom
nRemove the battery from the battery
compartment.
nReplace the battery with a new Standard 9V
Battery.
nRejoin the battery compartment and the case
bottom, and install the screw.
!
- +
26 27
MUMBAI
TEST CERTIFICATE
DIGITAL MULTIMETER
This Test Certificate warrantees that
the product has been inspected and
tested in accordance with the published
specifications.
The instrument has been calibrated by
using equipment which has already
been calibrated to standards traceable
to national standards.
MODEL NO. ___________
KM 6030
SERIAL NO. ___________
DATE: ___________
ISO 9001
REGISTERED
QC
PASS
KUSAM-MECO

WARRANTY
Each “KUSAM-MECO” product is warranted to be
free from defects in material and workmanship
under normal use & service. The warranty period is
one year (12 months) and begins from the date of
despatch of goods. In case any defect occurs in
functioning of the instrument, under proper use,
within the warranty period, the same will be rectified
by us free of charges, provided the to and fro freight
charges are borne by you.
This warranty extends only to the original buyer or
end-user customer of a “KUSAM-MECO” authorized
dealer.
This warranty does not apply for damaged Ic’s,
fuses, burnt PCB's, disposable batteries, carrying
case, test leads, or to any product which in “KUSAM-
MECO’s” opinion, has been misused, altered,
neglected, contaminated or damaged by accident or
abnormal conditions of operation or handling.
“KUSAM-MECO” authorized dealer shall extend this
warranty on new and unused products to end-user
customers only but have no authority to extend a
greater or different warranty on behalf of “KUSAM-
MECO”.
“KUSAM-MECO’s” warranty obligation is limited, at
option, free of charge repair, or replacement of a
defective product which is returned to a “KUSAM-
MECO” authorized service center within the
warranty period.
29
THIS WARRANTY IS BUYER’S SOLE AND
EXCLUSIVE REMEDY AND IS IN LIEU OF ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE.
“KUSAM-MECO” SHALL NOT BE LIABLE FOR
ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OR LOSSES,
INCLUDING LOSS OF DATA, ARISING FROM
ANY CAUSE WHATSOEVER.
All transaction are subject to Mumbai Jurisdiction.
G 17,Bharat Industrial Estate, T. J. Road,
Sewree (W), Mumbai - 400 015. INDIA.
Sales Direct : [phone]
Tel. : [phone].
Fax : [phone]
Email : [email protected]
Website : www.kusamelectrical.com
www.kusam-meco.co.in
28