Kusam-meco KM 6030 User manual

THIS WARRANTY IS BUYER’S SOLE AND
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OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE.
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ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OR LOSSES,
INCLUDING LOSS OF DATA, ARISING FROM
ANY CAUSE WHATSOEVER.
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G 17,Bharat Industrial Estate, T. J. Road,
Sewree (W), Mumbai - 400 015. INDIA.
Sales Direct : [phone]
Tel. : [phone].
Fax : [phone]
Email : [email protected]
[email protected]
Website : www.kusamelectrical.com
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 10A or 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
Display Symbols.........................................10
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.
2
˜
˜ Low power consumption CMOS double
integration, A/D transform integrated circuit.
˜ Back light display.
˜ Auto Zero Calibration.
˜ Auto Polarity display.
˜ Low Battery & Over range indication.
˜ Selected range displayed on LCD.
˜ Instant continuity Buzzer.
˜ Recessed safety designed Input jacks.
˜ “ DATA HOLD” switch freezes reading.
Test lead jack mechanical protection function
& full Range over-load protection function.
FEATURES :

GENERAL SPECIFICATIONS :
Sensing : Average Sensing
Display : 3½ digit 1999 counts
LCD display. with
automatic sign and
Function annunciators.
Digital Size : 28mm(H)
Over range indication : Highest digit of (1) or (-1)
is displayed.
Polarity : Automatic (-) negative
polarity indication.
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 40°C; (32 )
Storage temperature : -10°C to 50°C;
(14°F to 122°F)
Auto Power Off : The meter will shut off
automatically about 15
Minutes after power is ON
if the meter is not in use.
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.
°F to 104°F
- +
3
ELECTRICAL SPECIFICATION :
AC VOLTAGE
DC VOLTAGE
Accuracy
±(1.0% rdg + 5 dgts)
±(1.2% rdg + 5 dgts)
Resolution
1 mV
10 mV
100 mV
1 V
Range
2 V
20 V
200 V
750 V
AC CURRENT
Accuracy
±(2.0% rdg + 5 dgts)
±(1.2% rdg +5dgts)
±(3.0% rdg +10dgts)
Resolution
1 mA
100 mA
10 mA
10 mA
Range
2 mA
200 mA
20 mA
20 A
4
200 mV
2 V
20 V
200 V
1000 V
±(0.5%rdg + 3dgts)
±(1.0%rdg + 5dgts)
100 mV
1 mV
10 mV
100 mV
1 V
Accuracy
Resolution
Range
Input Impedance : 10MW
Overload Protection :
1000VDC or AC rms.
200mV is 250V DC or AC RMS.
All other ranges
Input Impedance : 200mV : 1MW, Other ranges : 10M
Frequency : 40Hz-400Hz.
Overload protection : 200mV is 250VDC or AC RMS.
All other ranges is 1000V DC or AC RMS.
Display : Average Value (RMS of Sine Wave).
W
Overload Protection : 0.2A/250V Fuse
(No fuse on 20A range).
Max Input Current : 20A (above 10A for 15 sec.
maximum).
Frequency : 40Hz - 400Hz.
Display : Average value (RMS of Sine Wave).

CAPACITANCE
Accuracy
±(4.0% rdg + 3 dgts)
±(5.0% rdg + 3 dgts)
Resolution
1 pF
10 pF
100 pF
100 hF
1 hF
Range
2 nF
20 nF
200 nF
200 mF
2 mF
DC CURRENT
RESISTANCE
Accuracy
±(1.0% rdg + 5 dgts)
±(1.0% rdg + 2 dgts)
+(1.0% rdg + 15 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
±(1.5% rdg + 5dgts)
±(1.0% rdg +3dgts)
±(2.0% rdg +10dgts)
Resolution
1 mA
100 mA
10 mA
10 mA
Range
2 mA
200 mA
20 mA
20 A
5
Voltage at Open Circuit : < 700mV (200M range, open
circuit voltage around 3V).
Voltage at Open Circuit : All ranges 250VDC or AC RMS.
W
At 200 range, the resistance value caused by short
circuit of test load should be deducted from the
measured reading during measuring.
W
Testing frequency and voltage : around 400Hz
40mVrms.
Overload Protection : Maximum 36V DC or AC RMS.
Overload Protection : 0.2A/250V Fuse (No fuse on
20A range).
Max Input Current : 20A (above 10A for 15 sec.
maximum).
Measuring Voltage Drop : Full range is 200mV.
DIODE AND CONTINUITY MEASUREMENT
Accuracy
Resolution
Range
TEMPERATURE
Accuracy
±(2.0% rdg + 5dgts)
Resolution
1 Hz
Range
2 KHz
FREQUENCY
Range Description
hFE
TRANSISTOR hFE PARAMETER
MEASUREMENT
Can measure NPN or
PNP transistor hFE.
Range : 0~1000 b
6
±(1.0%rdg + 3dgts)
400°C~1000°C
-40°C~0°C
0°C~400°C 1°C
±(5.0%rdg + 5dgts)
±(3.0%rdg + 4dgts)
Overload Protection : 250V DC or AC rms.
Input Sensitivity : >200mV rms
Basic polarity
current abt 10m A,
Vce abt 2.8V.
Measuring condition
Display diode
forward voltage
Beeper sounds if
Continuity
Resistance
< 70W ± 20W.
Forward DC Current
about 1mA
Backward DC Voltage
about 2.8V
Open circuit Voltage
about 2.8V
Measuring Condition
-
1mV
Comment
Overload Protection : 250V DC or AC RMS.

Rules For Safe Operation
!The meter comply with IEC 1010-1 CAT I 1000V,
CAT II 600V and CAT III 300V over voltage
standards. Use the Meter only as specified in this
manual, otherwise the protection provided by the
Meter may be impaired.
!Do not operate the Meter before the cabinet has
been closed and screwed safety as terminal can
carry voltage.
!Make sure before each measurement the Meter is
set to the suitable range.
!Before using the Meter, Please inspect the cabinet
and test leads for damaged insulation or exposed
metal.
!Connect the red and black test lead to the correct
measuring input jack properly.
!Do not input values over the maximum range of
each measurement, otherwise the Meter could be
destroyed. Make sure to use fuss with proper rating
in stead of bad fuses.
!To avoid electric shock or damages, do not apply
more than 1000V between the “COM” terminal and
“ ” earth ground.
!Use caution when working with voltages above
60V(DC) or 30Vrms(AC). These voltages pose
shock hazard.
!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 off the Meter once finished measuring, fetch
out the battery, when the meter will not be used for
long period.
7
- +
!Do not operate the Meter under adverse
environmental humid area. To avoid damages
and dangerous, do not change the circuit.
!Periodically wipe the case with a damp cloth and
mild detergent. Do not use abrasives or solvents.
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)
1) Liquid Crystal Display
2) Data hold switch
3) Rotary switch
4) Temperature jack or inductance jack
5) Common Input jack
6) ON/OFF Switch
7) Capacitance jack
8) Transistor jack
9) Input jack for General Measurement
10) ON/OFF Backlight
9
( Figure 1)
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 10SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
750V AC
MAX
!
!
!
1
3
6
4
2
5
7
8
1999
AUTO POWER OFF
KM-6030
10
9
Display Symbols (see figure 2)
H
. . .
9991
~
10
(Figure 2)

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 750V 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 VW input 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.
- +
!
!
12
( Figure 3 )
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 10SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
750V AC
MAX
!
!
!RedBlack
KM-6030

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 750V rms
although readings may be obtained.
The AC Voltage measurement has 4 measurement
positions on the rotary switch : 2V, 20V, 200V and
750V
To measure AC Voltage, connect the Meter as
follows :
1) Insert the red test lead into the VW terminal
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 (750V) 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
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)
13
( figure 4)
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 10SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
750V AC
MAX
!
!
!RedBlack
~
KM-6030

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.
D. DC Current Measurement (see figure 6)
16
(figure 6)
Supply
Load
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 10SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
750V AC
MAX
!
!
!
KM-6030
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 :
!
nWhen AC Voltage measurement has been
completed, disconnect the connection between
the testing leads and the circuit under test.
15
(figure 5)
Supply
Load
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 10SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
750V AC
MAX
!
!
!
KM-6030

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.
!
18
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 10SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
750V AC
MAX
!
!
!RedBlack
(figure 7)
KM-6030
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
!

To measure resistance, connect the meter as
follows
1) Insert the red test lead into the VW terminal and
the black test lead into the COM terminal.
2) Set the rotary switch to an appropriate
measurement position in W range.
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 0.1W to 0.3W of 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
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.
!
Capacitor
20
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 10SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
750V AC
MAX
!
!
!
(figure 8)
CX
Cx
KM-6030

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.
G. TEMPERATURE MEASUREMENT (see figure 9)
Temperature measurement range is from - 40°C to
1000°C.
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
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 10SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
750V AC
MAX
!
!
!
(figure 9)
K Type
Thermocouple
KM-6030
!
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
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
20A 10SEC
MAX UNFUSED 200mA MAX FUSED
1000V DC
750V AC
MAX
!
!
!RedBlack
~
(figure 10)
KM-6030

To test a diode out of a circuit, connect the
Meter as follows :
1) Insert the red test lead into the VW terminal
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.
24
(Figure 11)
COM
VWHz
20A
mA
NPN
B
B
E
E
E
PNP
E
C
C
200mA MAX FUSED
1000V DC
750V AC
MAX
!
!
!RedBlack
KM-6030
20A 10SEC
MAX UNFUSED
The frequency measurement range is 2kHz.
To measure frequency, connect the Meter as follows :
1) Insert the red test lead into the VW terminal 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

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
n When 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 VW terminal
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

27
MUMBAI
TEST CERTIFICATE
DIGITAL MULTIMETER
This Test Certificate warranties 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, 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.