Kusam-meco KM 2775 User manual

An ISO 9001:2008 Company
®
G-17, Bharat Industrial Estate, T. J. Road, Sewree (W), Mumbai - 400 015. INDIA.
Sales Direct.: 022 -24156638, Tel. : [phone], Fax : 022 - 24149659
Email : [email protected], Website : www.kusamelectrical.com
An ISO 9001:2008 Company
®
All Specifications are subject to change without prior notice
D:\Chhaya\My Documents\Chhaya\backup\catlogs\NEW CAT\2013-14\KM 2775 revised 28 march 15.cdr
11 FUNCTIONS 34 RANGES
Model KM 2775
CAT III 600V
CE
Approved
SAFETY :
?Withstand Voltage : 6000V
?IEC/EN61010-1 EN61010-2-32 CAT III 600V
SPECIAL FEATURES :
?Auto Ranging
?Full Automatic measurement
?Range change function
?Data Hold function freezes the reading
?Continuity & Diode Measurements
?Auto Power Off
?Low Battery Indication
GENERAL SPECIFICATIONS :
íSensing : Average Sensing.
íJaw opening size : 55mm Max.
íDisplay : 3¾ digits 4000 counts LCD display
íSample Rate : Approx. 2 times per second
íResponse Time : Approx. 1 second
íLow Battery : “ ” sign appears on the display when the battery Voltage drops below accurate
operating level.
íOver range indication : “O.L” indicated
íOperating Principle : Dual slope integration
íStorage Temperature : -20°C to 60°C, <80% R.H.
íTemperature & Humidity for Guaranteed accuracy @ -10°C to 50°C at <80% R.H.
íPower Supply : Standard 9V battery
íDimension : 260(L) X 95(W) X 43(D) mm
íWeight : Approx. 515 gm (battery included)
ACCESSORIES :
Test leads, Carrying Case, Battery installed,
User's Manual.
ELECTRICAL SPECIFICATIONS - KM 2775
Accuracy is ± (% reading digits + number of digits ) or otherwise specified, at 23°C ± 5°C & less than equal to 80% R.H.
DC CURRENT
400 A
2000 A
Range
±(1.5%rdg + 4dgts)
Resolution Accuracy
0.1 A
1 A ±(1.5%rdg + 4dgts)
RESISTANCE
400 W
4 KW
40 KW
400 KW
4 MW
40 MW
Range Resolution
0.1 W
1 W
10 W
100 W
1 KW
10 KW
±(1.5%rdg + 3dgts)
Accuracy
±(1.5%rdg + 3dgts)
±(2.0%rdg + 4dgts)
±(1.5%rdg + 3dgts)
±(1.5%rdg + 3dgts)
±(1.5%rdg + 3dgts)
Overload Protection : 500V AC rms or 500V DC
FREQUENCY
4 KHz
20 KHz
Range Resolution
1 Hz
10 Hz
Accuracy
±(0.3%rdg + 2dgts)
±(0.3%rdg + 2dgts)
Overload Protection : 500V AC rms or 500V DC
Trigger level : 0.2V
AC VOLTAGE
Range Resolution Accuracy
400 mV
4 V
40 V
400 V
600 V
0.1 mV
1 mV
10 mV
100 mV
1 V
±(2.0%rdg + 3dgts)
±(1.5%rdg + 3dgts)
±(1.5%rdg + 3dgts)
±(1.5%rdg + 3dgts)
±(1.5%rdg + 3dgts)
Overload Protection : 600V AC RMS
Frequency Response : 0 ~ 400mV at 40Hz ~ 100Hz
4V ~ 600V at 40Hz ~ 500Hz
DC VOLTAGE
400 mV
4 V
40 V
400 V
600 V
Range Resolution
0.1 mV
1 mV
10 mV
100 mV
1 V
±(1.0%rdg + 3dgts)
Accuracy
±(1.0%rdg + 3dgts)
±(1.0%rdg + 3dgts)
±(1.0%rdg + 3dgts)
±(1.0%rdg + 3dgts)
Overload Protection : 600V AC RMS
Frequency Response : 40Hz ~ 1kHz
AC CURRENT
400 A
2000 A
Range
±(2.0%rdg + 4dgts)
Resolution Accuracy
0.1 A
1 A ±(2.0%rdg + 4dgts)
Overload Protection : 500V AC rms or 500V DC
CONTINUITY TEST
400 W
Range Audible Threshold
Less than 25W
DIODE TEST
2 V
Range Resolution
±(1.5%rdg + 3dgts)
Accuracy
1 mV
CAPACITANCE
4 nF
(30p~4nF)
40 nF
400 nF
4 mF
40 Fm
400 Fm
4 mF
Range Resolution
1 pF
10 pF
100 pF
1 nF
10 nF
100 nF
1 Fm
Overload Protection : 500V AC rms or 500V DC
±(3.0%rdg + 5dgts)
Accuracy
±(2.0%rdg + 5dgts)
±(2.0%rdg + 5dgts)
±(2.0%rdg + 5dgts)
±(2.5%rdg + 5dgts)
±(2.5%rdg + 5dgts)
±(2.5%rdg + 5dgts)
3¾ DIGIT 2000A AC/DC
DIGITAL CLAMPMETER
WARNING
Please do not change to any other DCV or Ohm range when you are
inputing 600V AC/DC. Make sure that you have turned off the input
voltage and then you can change to another range for testing.

2000A AC/DC
DIGITAL CLAMP METER
MODEL - KM 2775
OPERATION MANUAL
17, Bharat Industrial Estate, T. J. Road, Sewree (W),
Mumbai-400015. INDIA
Sales Direct: [phone] Tel.:[phone] Fax: [phone]
E-mail : [email protected], Website : www.kusamelectrical.com
www.kusam-meco.co.in
Digital Multimeter
Digital AC & AC/DC Clampmeter
AC Clamp Adaptor
AC/DC Current Adaptor
Transistorised Electronic Analog & Digital Insulation
Resistance Testers
Digital Sound Level Meter & Sound Level Calibrator
Digital contact & Non-contact Type Tachometer
Digital Non-contact (infrared) Thermometer
Thermo Hygrometer
Thermo Anemometer
Wood Moisture Meter
Distance Meter
Digital Hand Held Temperature Indicators
Digital Lux Meter
Network Cable Tester
Power Factor Regulator
Maximum Demand Controller/Digital Power Meter
LIST OF PRODUCTS
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
OFF
600V
600V
1500
1000
SELECT
RANGE
HOLD DCA ADJ
Hz
OFF
CAT III
600V
A
A
W
AUTO
MANU HOLD
Max
Min
DC
AC
APO
°C°F
VA
DIGITAL CLAMP METER
KM 2775

Nearly every electrical engineer has a hand held digital clamp meter
(Tongtester). We sometimes take them for granted, until we damage
them or “burn them out”. If you incorrectly connect your clamp meter to
a circuit, or if you have the clamp meter 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.
Clamp meter 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 clamp meter becomes a low
impedance circuit element.
Even if you correctly insert your clamp meter in to the circuit, you can
still damage your meter. Don’t try to measure current in excess of your
meter’s capacity. Check the current capacity of the Clamp meter.
If you are measuring current in industrial environment to prevent
excess current from flowing through your meter, always disconnect
your test leads from the circuit under test whenever you change Clamp
meter functions. Set your meter to the correct function, say current,
and its highest range for the setting. If the reading is small, change the
range to the next lower range till the reading can be read with the best
possible accuracy. When measuring voltage, connect the test leads
before your apply power to your circuit. To be safe, start by setting your
meter to its highest range first.
TAKE MEASUREMENTS CAREFULLY AND YOU’LL SPARE YOUR
METER AND YOURSELF, SOME PAIN
INDEX PAGE
1. INTRODUCTION..............................................1
2. SAFETY NOTES..............................................2
3. FEATURES.......................................................3
4. GENERAL.....................................................4-5
5. SPECIFICATIONS.........................................6-8
6. INSTRUMENT LAYOUT..............................9-12
7. MEASUREMENT.......................................13-15
8. MAINTENANCE..............................................16
9. TEST CERTIFICATE.......................................17
10. WARRANTY....................................................18

-1-
This meter has been designed and tested According to
IEC Publication 348, Safety Requirements for
Electronic Measuring Apparatus, IEC-1010 (En61010)
and other safety standards. Follow all warnings to
ensure safe operation.
1. INTRODUCTION
NOTE
WARNING
READ “SAFETY NOTES” (NEXT PAGE) BEFORE
USING THE METER.
2. SAFETY NOTES
Read the following safety information carefully before
attempting to operate or service the Meter.
— Use the meter only as specified in this manual :
Otherwise the protection provided by the meter may be
inpaired.
—Always keep hands behind the meter barrier.
—Use extreme caution when clamping around uninstalled
conductors or bus bars.
—Never clamp around any conductor carrying a voltage
above 600V R. M. S.
—Rated environmental conditions :
1. Indoor use.
2. Installation category III.
3. Pollution degree II.
4. Altitude up to 2000 meter.
5. Relative humidity 80% max.
o
6. Ambient temperature 0-40 C.
Observe the international Electrical Symbols listed
below :
Meter protected throughtout by double insulation
or reinforced insulation.
Warning ! Risk of electric shock.
Caution ! Refer to this manual before using the
meter.
Alternating current.
Earth (ground) terminal.
Application around and removal from hazardous
live conductors is permitted.
-2-
!

3. FEATURES
CAT IV - Is for measurements performed at the source of the
low voltage installation.
CAT I - Is for measurements performed on circuits not
directly Connected to Mains.
CAT II - Is for measurement performed on circuits directly
connected to the low voltage installation.
CAT III - Is for measurements performed in the building
installaton.
-3-
— 4000 - Count LCD
— Full Automatic measurement
ž Voltage measurement
ž Current measurement
ž Resistor measurement
ž Capacitor measurement
ž Frequency Counter
— Range change function.
— Data Hold Function freezes the reading.
— Continuity check.
— Diode measurement.
— Low battery indication
— Auto Power Off (APO) function.
— Safety design throughout with no exposed metal parts,
shielded banana plugs and recessed input terminals.
4. GENERAL
— Overload Protection :
ACV 600V rms
DCV 600V
Frequency & Ohm 500V rms
— Conductor Size : Approx 55mm max
— Dimensions : 260mm(L) X 95mm(W) x 43mm(D)
— Weight : Approx. 540g. (Battery included)
— Power Source : Standared 9V Battery.
— Operating Principle : Dual slope integration
— Over range indication : “OL” indicated.
— Low Battery indication : “ ” sign appears on the display
when the battery voltage drops below accurate
operating level.
— Response Time : Approx. 1 second.
— Sample Rate : Approx. 2 times per second.
— Temperature & Humidity for Guaranteed
o o
— Accuracy : -10 C to 50 C at < 80% max. Relative humidity.
- 4-

— Storage Temperature & Humidity :
o o
-20 C to 60 C at < 80% max. relative humidity.
—Battery Life :
Approx. 100 hours on continuous use.
(Alkaline)
—Accessories :
Test leads, Carrying Case, instruction manual,
Battery (one standard 9V).
-5-
o o
5. SPECIFICATIONS (All at 23 C±5 C, £80% R.H.)
AC Voltage
Range Resolution Accuracy (at 40-500Hz)
400 mV
4 V
40 V
400 V
600 V
0.1 mV
1 mV
10 mV
100 mV
1 V
± (2.0% rdg + 3dgt)
± (1.5% rdg + 3dgt)
± (1.5% rdg + 3dgt)
± (1.5% rdg + 3dgt)
± (1.5% rdg + 3dgt)
* Overload Protection : 600V AC RMS
* Frequency Response : 0~400mV at 40Hz~100Hz
4V~600V at 40Hz ~ 500Hz
DC Voltage
Range Resolution Accuracy (at 40-500Hz)
400 mV
4 V
40 V
400 V
600 V
0.1 mV
1 mV
10 mV
100 mV
1 V
± (1.0% rdg + 3dgt)
± (1.0% rdg + 3dgt)
± (1.0% rdg + 3dgt)
± (1.0% rdg + 3dgt)
± (1.0% rdg + 3dgt)
* Overload Protection : 600V DC
AC Current
Range Resolution Accuracy (at 40-500Hz)
400 A
2000 A
0.1 A
1 A
± (2.0% rdg + 4dgt)
± (2.0% rdg + 4dgt)
* Frequency Response : 40Hz ~ 500Hz
-6-

Resistance :
Range Resolution Accuracy
400 W
4 KW
40 KW
400 KW
4 MW
40 MW
0.1 W
1 W
10 W
100 W
1 KW
10 KW
± (1.5% rdg + 3dgt)
± (1.5% rdg + 3dgt)
± (1.5% rdg + 3dgt)
± (1.5% rdg + 3dgt)
± (1.5% rdg + 3dgt)
± (2.0% rdg + 4dgt)
* Overload Protection : 500V AC RMS or 500V
DC Current
Range Resolution Accuracy (at 40-500Hz)
400 A
2000 A
0.1 A
1 A
± (1.5% rdg + 4dgt)
± (1.5% rdg + 4dgt)
Continuity Test
Range Audible threshold
400 WLess than 25W
* Overload Protection : 500V AC RMS or 500V DC
Diode Test
Range
2V
Resolution Accuracy
1 mV ± (1.5%rdg + 3dgt)
-7- -8-
Capacitor
Range Resolution Accuracy
4 nF (30p-4nF) 1 pF
10 pF
100 pF
1 nF
10 nF
100 nF
1 mF
± (3.0% rdg + 5dgt)
± (2.0% rdg + 5dgt)
± (2.0% rdg + 5dgt)
± (2.0% rdg + 5dgt)
± (2.5% rdg + 5dgt)
± (2.5% rdg + 5dgt)
± (2.5% rdg + 5dgt)
* Overload Protection : 500V AC RMS or 500V DC
40 nF
400 nF
4 mF
40 mF
400 mF
4 mF
Frequency Counter
Range Resolution Accuracy
1 Hz
10 Hz
± (0.3% rdg + 2dgt)
± (0.3% rdg + 2dgt)
* Overload Protection : 500V AC RMS or 500V DC
* Trigger level : 0.2V
4 KHZ
20 KHz

6. INSTRUMENT LAYOUT
-9- -10-
!
CAT III
MAX 600V
W
V
(6)
(7)
(1) Transformer Jaws
Pick up the AC current or DC current flowing through
the conductor. The “+” marking on the jaw indicates
direction of DC current existing on the conductor
being tested which follows forward and vertically with
jaws, the reading shown on display is positive.
(2) Barrier
Provide a protective distance from hands to
conductor.
(3) Jaw Trigger
Press the lever to open the transformer jaws.
When the lever is released, the jaws will close again.
(4) Function selector rotary switch
The rotary switch selects the function.
(5) LCD Display
The LCD display indicates the function mode, bar
graph, annunciator, and measured value of a signal.
Field effects 3¾ digit LCD with maximum reading of
3999.
OFF
600V
600V
1500
1000
SELECT
RANGE
HOLD DCA ADJ
Hz
OFF
CAT III
600V
A
A
W
AUTO
MANU HOLD
Max
Min
DC
AC
APO
°C °F
VA
DIGITAL CLAMP METER
(1)
(3)
(4)
(11)
(5)
(10)
(9)
(8)
(2)

The meter has a default auto power off function
(APO annunciator turns on). If the meter idles for
more than 10 minutes, the meter automatically turns
the power off. When this happens, the state of the
meter is saved. In order to disable auto power off
function, power function, power on the meter when
any of the push function, except for HOLD, is
pressed down.
-12-
(6) Volt / Ohm / Frequency Terminal
This is positive input terminal for Voltage/Ohm/
Frequency measurement. Use the RED test lead
to connect.
(7) COM Terminal
This is the ground input terminal. Use the BLACK
test lead to connect.
(8) Select Button
In the resistance + continuity + diode function
Press the Select button to selects resistance,
Continuity or diode function.
(9) Range Button
Press the Range button to selects the manual range
mode and turns off the AUTO annunciator and turns
on the manual annunciator and changes the full
scale range. In manual range mode, each time
press Range button (less than one second), the
range increments and a new value is displayed. To
exit the manual range mode and return to auto
mode, press the RANGE button (more than one
second).
(10) HOLD Button
Press the HOLD button (HOLD annunciator turns
on) makes the meter stop updating the LCD display.
This mode can be nested in most of the special
modes. Enabling HOLD function in automatic mode
makes the meter switch to manual mode, but the full
scale range remains the same. HOLD function can
be cancelled by changing the measurement mode,
pressing Range, or push HOLD again.
(11) DCA zero adjust shaft
(12) Auto Power Off (APO)
-11-

7. MEASUREMENT
Before proceeding with measurement, read the safety
notes.
Insert the BLACK test lead to COM and the RED one
to the other terminal.
Switch to ACV function for AC voltage or DCV
function for DC Voltage.
Use the test lead tip to the circuit and read the
reading of display directly.
If the readings exceed AC 600V (DC 600V), may be
the reading value is wrong and it is dangerous.
(Refer to the safety notes).
(1) Voltage Measurement
Switch to ACA function for AC Current or DCA
function for DC Current.
If the initial reading of DCA is not zero, use the DCA
zero adjust shaft to adjust.
Make sure that the test lead is not connecting to the
terminal.
Press the jaw trigger to open the transformer jaws &
clamp onto one conductor only. Read the display
reading directly.
(2) Current Measurement
Switch to OHM range & make sure there is no power
in the circuit being measured. Insert the BLACK lead
to the COM and the RED one to another.
Connect the test leads to the circuit or device under
test & read the display directly.
(3) Resistance Measurement
-13-
Continuity check shares the same configuration with
400.0W manual resistance measurement mode, but
with buzzer output to indicate continuity.
The buzzer generates a 2KHz sound whenever the
digit number less than 25W. Because the cycle time
of measurement is only 50ms, the least significant
digit will not display.
(4) Continuity Check
Diode measurement mode shares the same
configuration with 4.000V manual voltage
measurement mode.
(5) Diode Measurement
Switch to capacitance measurement mode. Insert
the BLACK test lead to COM and the RED one to
the other terminal.
(6) Capacitance Measurement
If the test circuit is open or the voltage drop between
the two ports of the device (diode) under test are
larger than 2V, the LCD panel will show “OL”.
The buzzer generates a 2KHz sound whenever the
digit number is less than 0.25V. Because the cycle
time of measurement is only 50ms, the least
significant digit will not display.
Connect the test leads to the capacitance test and
read the display directly.
In order to obtain an accurate reading, a capacitor
must be discharged before measurement begins.
The chip has a built-in discharge mode to
automatically discharge the capacitor.
-14-

In discharge mode, the LCD displays DS.C
Discharging through the chip is quite slow.
We recommend the user to discharge the
Capacitor with same other apparatus.
(7) Frequency measurement
Switch to frequency measurement mode.
Insert the BLACK test lead to COM and the RED
one to the other terminal.
Apply the test leads to the points across which the
frequency is to be measured, and read the result
directly from the display.
-15- -16-
When low battery warning appears, chance a new
battery as follows :
(1) Disconnect the test leads from the instrument and
turn off power.
(2) Unscrew the battery cover and replace a new
battery.
8. MAINTENANCE
Battery Replacement :
Cleaning and Storage :
WARNING
To avoid electrical shock or damage to the meter,
do not get water inside the case.
Periodically wipe the case with a damp cloth and
detergent. Do not use abrasives or solvents.
If the meter is not used for over 60 days, remove the
battery for storage.
Due to our policy of constant improvement and
development, we reserve the right to change
specifications without notice.

-17-
ISO 9001
REGISTERED
QC
PASS
KUSAM-MECO
MUMBAI
TEST CERTIFICATE
DIGITAL CLAMPMETER
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 2775
SERIAL NO. ___________
DATE: ___________
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 guarantee 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.
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.
-18-