Kusam-meco KM 2820EL User manual

DIGITAL EARTH LEAKAGE TESTER
KM 2820EL
INSTRUCTION MANUAL
An ISO 9001:2008 Company
Microprocessor Controlled
Press “TEST”
Adjust Current
ON/TEST SELECT START
0° - 180°
DIGITAL RCCB / ELCB TESTERS
KM 2821EL
Press “TEST”
TEST
Multi-Voltage Auto-Off
Multi-Voltage Auto-Off
1 2 3 4 5 ENTER / YES
6 7 8 9 0 CLEAR / NO
ON
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
LIST OF PRODUCTS
* Digital Multimeter * Digital AC & AC/DC Clampmeter
* AC Clamp Adaptor * AC/DC Current Adaptor
* Thermo Anemometer * Thermo Hygrometer
* Distance Meter * Digital Lux Meter
* Network Cable Tester * Power Factor Regulator
* Earth Resistance Tester * Digital Panel Meters
* DC Power Supplies * High Voltage Detector
* Calibrators * Gas Analysers
* Frequency Counter * Function Generator
* Phasing Sticks * Battery Tester
* Waterproof Pen Testers * Solar Power Meter
* EMF Detector
* Wood, Paper & Grain Moisture Meter
* 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
* Maximum Demand Controller/Digital Power Meter
* Digital Hand Held Temperature Indicators

INDEX 1. Safety Precautions. PAGE
Electricity can cause severe injuries even with low voltages or
currents.
Therefore it is extremely important that you read the following
information before using your Digital RCCB / ELCB Tester.
This instrument must only be used and operated by a competent
trained person and in strict accordance with the instructions.
The c ompany will not accept liability for any damage or injury
caused by misuse or non compliance with instructions and safety
procedures.
1
1.1
Pay attention to cautions and warnings which will inform you of
potentially dangerous procedures.
1.2 Never open your Digital RCCB / ELCB Tester except for battery
replacement. (See Battery replacement section).
1.3
Always inspect you Digital RCCB / ELCB tester and test leads
before use for any sign of abnormality or damage. If any
abnormal conditions exist (broken test leads, cracked case, display
faulty etc...) Do not attempt to take any measurement or use the
tester.
Return your Digital RCCB / ELCB tester to the company or your
nearest distributor for service.
1.4 Never replace the protective fuse with any other than the
specified or approved equivalent.
1.5 Your Digital RCCB / ELCB tester has been designed with your
safety in mind. However, no design can completely protect
against incorrect use. Electrical circuits can be dangerous and / or
lethal when a lack of caution or poor safety practice is used. Use
caution in the presence of voltage above 24V as these pose a
shock hazard.
1.6
Safety...................................................................................................01
Specifications.....................................................................................02
Features..............................................................................................03
Connections.......................................................................................03
Instrument Layout.............................................................................04
Testing Disconnection Sensitivity of Breakers...............................06
Testing Disconnection Time of Breakers........................................07
Preparation for measurement...........................................................08
Battery & Fuse Replacement............................................................08
Calibration .........................................................................................09
Servicing............................................................................................09
Test Certificate...................................................................................10
Warranty..............................................................................................11

!!
3. Features
2
2 Lines X 16 Characteres
Very Low Consumption.
Smart Microprocessor Controlled.
Auto Power Off.
Better than 2% accuracy. (Current)
Menu Driven.
Accurate Digital readout of Disconnection Time
Accurate Digital readout of Disconnection Sensitivity.
Data Hold Function
Zero Crossing Circuitry permit testing at 0° or 180°.
Disconnection Phase Polarity Shown on L.C.D. Display.
Polarity Trip Indicator (Positive or Negative Phase)
2. SPECIFICATIONS
Functions KM 2820EL KM 2821EL
Current Settings
Current Selection
Phase Start Selection
0°
180°
Phase Polarity Trip Indicator
Operating Voltage (L-E)
Timer Resolution
Timer Accuracy
Current Accuracy
Voltmeter accuracy
Voltmeter Resolution
Operating Temperature
Storage Temperature
Maximum Current Specified at 317Vac
0-1000mA Selectable
Keypad
Yes
110Vac to 450Vac
1mS
1% & 2mA
5%
1V
-5°C ~ 45°C
-10°C ~ 50°C
Knob
Yes
YesYes
Yes Yes
Battery 8 x AA batteries
Current Resolution 1mA
1mS
4. Connections
LINE CAT,III
MAX 450V
EARTH
Line Probe
Connection
Earth Probe
Connection
3

5. Instrument Layout
DIGITAL EARTH LEAKAGE TESTER
Microprocessor Controlled
Adjust Current
ON/TEST SELECT START
0° - 180°
KM 2820EL
Press “TEST”
Multi-Voltage Auto-Off
4
1 2 3
1- On Switch
Test Button Switch
2- Selection Switch.
0° - 180° Switch
3- Current Selection Knob
4- L. C. D.
DIGITAL EARTH LEAKAGE TESTER
Microprocessor Controlled
KM 2821EL
Press “TEST”
Multi-Voltage Auto-Off
5
1 2 3
1- On Switch
Test Button Switch
2- Selection Keypad.
3- Clear / No button.
4- Enter / Yes Button
5- L. C. D.
TEST 1 2 3 4 5 ENTER / YES
6 7 8 9 0 CLEAR / NO
ON
4
45

6. RCCB / ELCB Testing - Sensitivity-
* - Instantaneous
- Time Delay
1 - Instantaneous
2- Time Delay
Push Select to change Selection
to instantaneous, then press “TEST” Press 1 to select Instantaneous
Turn Instrument “ON” by pressing the “ON” button.
The L.C.D. Display will come to the following Screen.
KM 2820 EL KM 2821 EL
Dial Starting
Current. 123mA
Enter Starting
Current. 123mA
Dial the Starting Current of the
Instantaneous Test using the Knob.
Enter the Starting Current for the
Test using the Keypad.
Positive
Start Edge
Select the positive or Negative
Start Edge using the Select Button.
Negative
Start Edge
0180
Select the positive or Negative
Start Edge using any Number Button.
Connect Leads
to Earth & Phase
Connect Leads to Earth and Phase.
The Test will start Automatically.
Connect Leads
to Earth & Phase
V=317V
I=127mA
Test in Progress. The Voltage
between leads is 317V and I=127mA
V=317V
I=127mA
V=317V -
I=140mA HoldgTRP
TRP=Tripped, Display on Hold
at 140mA, Tripped on -edge of signal
V=317V
I=999mA HoldgOVR
OVR=OverRange Display on Hold
at 999mA, Did not trip.
7. RCCB / ELCB Testing - Time Delay-
- Instantaneous
*- Time Delay
1 - Instantaneous
2- Time Delay
Push Select to change Selection
to Time Delay, then press “TEST” Press 2 to select Time Delay
Turn Instrument “ON” by pressing the “ON” button.
The L.C.D. Display will come to the following Screen.
KM 2820 EL KM 2821 EL
Dial Testing
Current. 125mA
Enter Testing
Current. 125mA
Dial the Testing Current of the
Instantaneous Test using the Knob.
Enter the Testing Current for the
Test using the Keypad.
Positive
Start Edge
Select the Positive or Negative
Start Edge using the Select Button.
Negative
Start Edge
0180
Select the Positive or Negative
Start Edge using any Number Button.
Connect Leads
to Earth & Phase
Connect Leads to Earth and Phase.
The Test will start Automatically.
Connect Leads
to Earth & Phase
V=317V T=4.023s
I=125mA
Test in Progress since 4.023s. The Voltage
between leads is 317V and Constant current is 125mA
V=317V T= 4.023s
I=125mA
V=317V + T=12.435s
I=125mA HoldgTRP
TRP=Tripped, Display on Hold
at 12.435s, Tripped on +edge of signal
V=317V T=99.999s
I=125mA HoldgOVR
OVR=OverRange Display on Hold
at 99.999s, Did not trip.
67

8. Preparation for Measurement.
8.1 Before testing Always Check the Following.
At Power “ON”, read the display to make sure the
“Replace Battery” message do not appears.
There is no visual damage to the instrument or Test leads.
Test lead Continuity with a continuity meter.
9. Battery Replacement
Your Digital RCCB / ELCB Tester’s battery is situatedc under the
tester.
Your Smart-test display will indicate you when the battery need to
be replaced.
Disconnect the Test leads from the instrument, remove the battery
cover and the batteries.
Replace with eight 1.5V R6 or L6 batteries, taking care to observe
correct polarity.
Replace battery Holder and the Battery cover.
10. Fuse Replacement
The Fuse is located under the Battery Holder. To replace the
Fuse, proceed as per Battery replacement procedure to open
the battery cover, then remove and replace the fuse located
under the Battery holder.
Only replace with the same specification fuse. (2A Fast Blow)
11. Servicing and Calibration
Your Digital RCCB. ELCB tester has been factory Calibrated.
However, it is of good practice to have your instrument
“CERTIFIED” by a National Calibration Facility.
12. Safety Notes
Rated environmental conditions :
1. Indoor use.
2. Installation Category III
3. Pollution Degree 2.
4. Altitude upto 2000 Meter.
5. Relative Humidity 80% Max.
6. Ambient Temperature -5°C ~ 45°C
Observe the International Electrical Symbols listed below.
Meter is protected throughout by double insulation or
reinforced insulation.
Warning ! Risk of electric shock.
!!
Caution ! Refer to this manual before using the meter.
13. 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 to be used for periods of longer than 60 days,
remove the batteries and store them separately.
89

MUMBAI
TEST CERTIFICATE
DIGITAL EARTH LEAKAGE TESTER
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 2820EL / KM 2821EL
SERIAL NO. ___________
DATE: ___________
ISO 9001
REGISTERED
QC
PASS
KUSAM-MECO
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.
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.
WARRANTY
11
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