An ISO 9001:2008 Company

®

3½ DIGIT 1999 COUNTS DIGITAL MULTIMETER

SPECIAL FEATURES :

Automatic Zero adjustment.

Transistor hFE Test.

ACCESSORIES :

Test Leads, Spare Fuse, Carrying Case, User's Manual

& Battery.

OPTIONAL ACCESSORIES:

Current Clamp CA 300, Current Clamp Adaptor CA500,

CA1000, CA2000, High Voltage Probe PD-28.

í 170(L) x 80(W) x 40(H)mm

8 FUNCTIONS 30 RANGES

GENERAL SPECIFICATIONS :

í Average Sensing.

í ±(0.5%rdg + 1dgt)

10Amps RANGE

LCD display

FUSED

í 18 mm

í 3 measurements

per second nominal

í MSB (highest)

digit (1) or (-1) is displayed.

í The “ ” sign is displayed when

the battery voltage drops below the operating

Voltage.

í 0°C to +50°C; 70%R.H.

í -20°C to 60°C; 0-80%R.H.

(With Battery Removed)

Model 603

ELECTRICAL SPECIFICATIONS- 603

Accuracy : ± (% reading + digit) at 23 ± 5°C less than 75% RH.

DC VOLTAGE

Range Resolution

200 mV

2 V

100 m

1 mV

20 V

200 V

10 mV

100 mV

Accuracy

±(0.5%rdg + 1dgts)

1000 V 1 V

Input Impedance : 10M W

Overload Protection : 500V DC / 350V AC for 15 sec.on the 200mV range, 1200V DC / 800V AC on all other ranges

AC VOLTAGE

Range Resolution Accuracy

200 mV

2 V

100 m

1 mV

20 V

200 V

±(1.0%rdg + 4dgts)

10 mV

100 mV

750 V 1 V ±(1.5%rdg + 4dgts)

Input Impedance : 10M W

Overload Protection : 500V DC / 350V AC for 15 sec. on the 200mV range, 1200V DC / 800V AC on all other ranges

AC CURRENT

Range Resolution Accuracy

200 A 100 nA

2 mA

20 mA

1 m

±(1.2%rdg + 4dgts)

10 m

200 mA

10 A

100 m

10 mA ±(2.0%rdg + 4dgts)

Overload Protection : 10A Input fused upto 12A for 30 sec.

Other range Input, 0.8A/250V Fuse.

Voltage Burden : 10A range 700mV MAX.

RESISTANCE

Range Resolution Accuracy

200 W ±(1.0%rdg + 3dgts)

2 K W W

20 K W

±(0.8%rdg + 1dgt)

200 K W W

2000 K W W

20 M W ±(3.0%rdg + 3dgts)

200 M W ±(5.0%rdg -10dgts)

Overload Protection : 500V DC/AC

Test Voltage : 200 W range 3.0V

MAX, 200M W

DIODE TEST

Test Current

Test Voltage

1.0 ± 0.6mA

3.2V MAX.

Overload Protection : 500V DC or AC rms

DC CURRENT

Range Resolution Accuracy

200 A 100 nA

2 mA

20 mA

1 A

±(1.0%rdg + 1dgt)

10 m

200 mA 100 m

10 A 10 mA ±(2.0%rdg + 3dgts)

Overload Protection : 10A Input fused upto 12A for 30 sec.

Other range Input, 0.8A/250V Fuse.

Voltage Burden : 10A range 700mV MAX.

TRANSISTOR hFE TEST

Range

0 to 1000

Vce

2.8V ± 0.4V

Basic DC Current

10 m

CONTINUITY TEST

Audible Sound Buzzer

Less than 100 W

Overload Protection :

500V DC or AC rms

All Specifications are subject to change without prior notice

An ISO 9001:2008 Company

®

Navin com/D:Sandeep Gupta/New Catlog Dec 2011/KM-603.cdr

DIGITAL

MULTIMETER

603

TABLE OF CONTENTS

TITLE PAGE NO.

Overview.....

.....................................

.......................

01

Unpacking Inspection..............................................

02

Rules For Sa fe Operation......

...............................

..

03

International Electrical Symbols..............................

05

The Multimeter Structure........................................

06

Functional Buttons..................................................

07

Display Symbols.....................................................

07

Measurement Operation.........................................

08

A. DC Voltage Measurement...........................

08

B. AC Voltage Measurement...........................

09

C. AC Current Measurement...........................

11

D. DC Current Measurement..........................

12

E. Measuring Resistance................................

13

F. Measuring Diode & Continuity....................

15

G. Transistor Measurement............................

17

Features..................................................................

18

General Specifications............................................

18

Electrical Specifications........................................

..

19

DC Voltage

AC Voltage

AC Current

DC Current

Resistance

Diode & Continuity Test

Transistor Test

Maintenance...........................................................

21

Replacing the Battery & Fuse

Test Certificate........................................................

23

Warranty..................................................................

24

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 - 603 (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, Diode &

Continuity Test, Transistor Test but also has range 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 :

Item

1

2

Description Qty.

English Operating Manual 1 piece

Test Lead 1 pair

In the event you find any Part missing or damaged, please contact your dealer immediately.

1 2

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 : 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 connecting Terminals.

exposed metal. Check the test leads for

Continuity. Replace damaged test leads with identical electrical specifications before using the

Meter.

marked on the Meter, between the terminals or between any terminal and grounding.

position and no changeover of range should be made while measurement is conducted to prevent the Meter from getting damaged.

voltage over 60V in DC or 30V rms in AC, special care should be taken for there is danger of electric shock.

your measurements.

of high temperature, humidity, explosive, inflammable and strong magnetic field. The performance of the Meter may deteriorate after the meter is dampened.

behind the finger guards.

3

Rules For Safe Operation (2)

-voltage capacitors before testing resistance, continuity, diodes, or current.

Meter might produce false readings that can lead to electric shock and personal injury.

Remove the battery when not using for a long time.

it has not been used for some time, replace the battery as soon as leaking appears. A leaking battery will damage the Meter.

4

International Electrical Symbols The Multimeter Structure (see figure 1)

1

DC (Direct Current).

- +

!

Grounding.

Double Insulated.

Deficiency of Built-In Battery.

Continuity Test.

Diode.

Fuse.

Warning ! Refer to the Operating Manual.

Caution ! Risk of Electric Shock.

2

4

V COM MA

1000 VDC

750 VAC

MAX

500V

MAX

250 mA

MAX

A

10 A

MAX

603

3

( Figure 1)

1) LCD DISPLAY :

A 3½ digit display (maximum reading 1999) indicates measured values, and features symbols indicating ranges, Low Battery,.

2) FUNCTION SELECTOR :

To Select ACV, DCV, ACA, DCA, RESISTANCE,

Diode, Continuity & Transistor Test.

3) INPUT JACKS (V m A

Test leads are inserted into these jacks for

Voltage, Resistance, Current measurements,

Continuity & Diode Checks.

4) Input Socket for Transistor Test.

NPN or PNP transistors are inserted in the sockets provided to measure their ratings.

5 6

Functional Buttons

Below table indicates the functional button operations

Buttons Operation Performed

POWER

(Yellow Switch)

Turn the Meter ON and OFF.

Rotate the SWITCH to turn ON the

Meter.

Rotate the SWITCH to OFF

position to turn OFF the Meter.

Display Symbols (see figure 2)

1.9.9.9

2 20 200

No.

1

2

3

( Figure 2)

Symbol

- +

Meaning

Indicates negative reading.

The battery is low.

readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator appears.

Indicates the range in which the switch position is placed.

7

Measurement Operation

- + otherwise false readings may be provided.

!

besides the input terminals of the Meter before carrying out measurement.

A. DC voltage measurement (see figure 3)

~

V

COM

MA

1000 VDC

750 VAC

MAX

500V

MAX

250 mA

MAX

10 A

MAX

A

603

Black Red

( 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 1000V 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 V W 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 shows on the display.

8

Caution : unknown, use the maximum measurement position (1000V) and reduce the range step by step until a satisfactory reading is obtained.

selected range is overloaded, it is required to select a higher range in order to obtain a correct reading.

of approx. 10M W measurement errors in high impedance circuits.

If the circuit impedance is less than or equal to

10k W completed, disconnect the connection between the testing leads and the circuit under test.

B. AC Voltage Measurement (see figure 4)

~

V

COM

MA

1000 VDC

750 VAC

MAX

500V

MAX

250 mA

MAX

10 A

MAX

A

603

( figure 4)

9

Black Red

!

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 5 measurement positions on the rotary switch : 200mV, 2V, 20V,

200V, 750V.

To measure AC Voltage, connect the Meter as follows :

1) Insert the red test lead into the V W 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 : unknown, use the maximum measurement position (750V) and reduce the range step by step until a satisfactory reading is obtained.

selected range is overloaded, it is required to select a higher range in order to obtain a correct reading.

completed, disconnect the connection between the testing leads and the circuit under test.

10

C. AC Current Measurement (see figure 5)

~

1000 VDC

750 VAC

MAX

500V

MAX

250 mA

MAX

10 A

MAX

603

Black Red

(figure 5)

!

Warning

Never attempt an in-circuit current measurement where the voltage between terminals and ground is greater than 60V.

Use proper function, and range for the current measurement.

The AC Current measurement has 5 measurement positions on the rotary Switch : 200 m

200mA, and 10A

To measure AC Current :

1) Turn off power to the circuit. Discharge all high- voltage capacitors.

2) Insert the red test lead into the mA or 10A input terminal and the black test lead into the COM input terminal.

3) Set the rotary switch to an appropriate measurement position in mA or A range.

4) Break the current path to be tested. Connect the

meter in series in the circuit.

5) Turn on power in the circuit.

The measured value is shown on the display.

11

Caution :

Unknown, use the maximum measurement

position (10A) and reduce the range step by

step until a satisfactory reading is obtained.

selected range is overloaded, it is required to select a higher range in order to obtain a correct

Reading.

Completed, switch off power in the circuit, switch off the meter & then remove the test leads.

D. DC Current Measurement (see figure 6)

~

1000 VDC

750 VAC

MAX

500V

MAX

250 mA

MAX

10 A

MAX

603

Black Red

(figure 6)

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.

12

The DC current measurement has 5 measurement positions on the rotary switch : 200 m

200mA, and 10A.

To measure DC Current :

1) Turn off power to the circuit. Discharge all

High -Voltage capacitors.

2) Insert the red test lead into the mA or 10A terminal and the black test lead into the COM terminal

3) Set the rotary switch to an appropriate

Measurement position in mA or A range.

4) Break the current path to be tested. Connect the red test lead to the positive side of the break and the black test lead to the negative

side of the break.

5) Turn on power to the circuit.

The measured value shows on the display.

Caution unknown, use the maximum measurement position (10A) and 10A terminal, and reduce the range step by step until a satisfactory reading is obtained.

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.

13

V W mA 10A

1000 VDC

750 VAC

MAX

500V

MAX

250 mA

MAX

10 A

MAX

603

Black Red

(figure 7)

The resistance range has 7 measurement positions on the rotary switch : 200 W W ,

2000k W W

To measure resistance, connect the meter as follows :

1) Insert the red test lead into the V W the black test lead into the COM terminal.

2) Set the rotary switch to an appropriate measurement position in W

3) Connect the test leads across with the object being measured.

The measured value shows on the display,

Note :

The test leads can add 0.1

W the Resistance measurement. To obtain precision readings in low-resistance, that is the range of 200 W beforehand and record the reading obtained

(call this reading as X). (X) is the additional resistance from the test lead.

14

Then use the equation :

Measured resistance value (Y) - (X) = precision readings of resistance.

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 : sockets with the switch in Resistance range. 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.

F. Measuring Diodes & Continuity (See figure 8)

!

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.

To test a diode out of a circuit, connect the

Meter as follows :

1) Insert the red test lead into the V W and the black test lead into the COM terminal.

15

V W mA 10A

1000 VDC

750 VAC

MAX

500V

MAX

250 mA

MAX

10 A

MAX

603

Black Red

(figure 8)

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 : 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.

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.

disconnect the connection between the testing leads and the circuit under test.

16

Testing for Continuity

To test for continuity :

1.

Insert the red test lead into V W 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 100 W

The LCD displays the resistance value of a circuit under test.

Caution : tested is open.

disconnect the connection between the testing leads and the circuit under test.

G. Transistor Testing

To test the Transistors, connect the Meter as below :

1.

Insert the transistor (NPN or PNP) in the respective sockets provided.

2.

The measured value is shown on the LCD

Display.

17

FEATURES :

Digit Size : 18mm(H)

Display : 3½ digit LCD display (1999 Counts)

GENERAL SPECIFICATIONS :

Display : 3½ digit LCD. Maximum

reading 1999 with

automatic sign and

Function annunciators.

Overrange indication : MSB (highest) digit (1) or

Low battery

(-1) is displayed.

: “ ” is displayed when

The battery voltage drops

Measurement rate

below the operating voltage.

: 3 measurements per second,

nominal.

Operating temperature : 0°C to + 50°C-70% RH.

Storage temperature : -20°C to 60°C, 0-80% RH

with battery removed.

Accuracy : Accuracy specifications at

Power

Dimension

Weight

23 ± 5°C less than 75% RH.

: Single 9 V Battery.

: 170mm (L),84mm(W),

45mm(H)

: Approx (250 grams)

Accessories

including battery

: Test leads, Spare Fuse,

Operating Manual, Battery,

Carrying Case.

18

E LECTRICAL SPECIFICATION :

DC VOLTAGE

Range

200 mV

Resolution

100 m

1 mV

Accuracy

2 V

20 V

200 V

1000 V

10 mV

100 mV

1 V

± (0.5% rdg + 1 dgt)

OL. Protection : 500V DC/350V AC for 15 sec. On

200mV range, 1200V DC/800V AC on

all other range

Input Impedance : 10M W

AC VOLTAGE

Range Resolution

100 m

Accuracy

200 mV

2 V

20 V

200 V

750 V

1 mV

10 mV

100 mV

1 V

± (1.0% rdg + 4 dgts)

± (1.5% rdg + 4 dgts)

OL. Protection : 500V DC/350V AC for 15 sec. On

200mV range, 1200V DC/800V AC on

all other range

Input Impedance : 10M W

AC CURRENT

Range Resolution

200 m 100 n A

2 mA 1 m

20 mA 10 m

200 mA 100 m

10 A 10 mA

Accuracy

± (1.2% rdg + 4 dgts)

± (2.0% rdg + 4 dgts)

OL. Protection : 10A Input, unfuse, upto 12A for 30 sec.

Other range Input, 0.8A/250V Fuse.

Voltage Burden : 10A range 700mV MAX

19

DC CURRENT

Range Resolution

200 m 100 n A

2 mA

20 mA

200 mA

1 m

10 m

100 m

10 A 10 mA

Accuracy

± (1.0% rdg + 1 dgt)

± (2.0% rdg + 3 dgts)

OL. Protection : 10A Input, unfuse, upto 12A for 30 sec.

Other range Input, 0.8A/250V Fuse.

Voltage Burden : 10A range 700mV MAX.

RESISTANCE

Range Resolution Accuracy

200 W ± (1.0% rdg + 3 dgts)

2 K W W

20 K W

± (0.8% rdg + 1 dgt)

200 K W W

2000 K W W

20 M W ± (3.0% rdg + 3 dgts)

200 M W ± (5.0% rdg - 10 dgts)

OL. Protection : 500V DC/AC

Test Voltage : 200 W range 3.0V

MAX 200M W

DIODE TEST

Test Current

1.0 ± 0.6 mA

Accuracy

3.2V MAX

OL. Protection : 500V DC/AC rms

CONTINUITY TEST

Audible Sound Buzzer Less than 100 W

OL. Protection : 500V DC/AC rms

TRANSISTOR hFE TEST

Range

0 to 1000

Vce

2.8V ± 0.4V

20

Basic DC Current

10 m

Maintenance

!

Warning

To avoid false reading, replace the battery as soon

To replace battery : leads and the circuit under test, and remove the testing leads away from the input terminals of the

Meter.

battery compartment, and separate the battery compartment from the case bottom compartment.

Battery.

bottom, and install the screw.

To replace Fuse :

When an input is given to the terminals and the display does not show any reading, check if the fuse is ok. If the fuse has burnt out then it has to be replaced.

leads and the circuit under test, and remove the testing leads away from the input terminals of the

Meter.

battery compartment, and separate the battery compartment from the case bottom

specifications in the fuse holder.

bottom, and install the screw.

21 22

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.

SERIAL NO. ___________

DATE: ___________

ISO 9001

REGISTERED

23

QC

KUSAM-MECO

PASS

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.

24