Kusam-meco KM 2805 MK-1 User manual

Note: All Specification are Subject to change without prior notice.
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, www.kusam-meco.co.in
DIGITAL INSULATION RESISTANCE TESTER
(5KV, 1TW)
Model KM 2805 MK-1
Model - KM 2805 MK-1 insulation resistance tester is a handheld
instrument designed primarily to make resistance / insulation
resistance measurement
PHYSICAL SPECIFICATION
Certification
SAFETY
-
INSULATION RESISTANCE MEASUREMENT
>3.5mA
Output Voltage
Display Range
Open Circuit Voltage
Test Current
Short Circuit Current
Accuracy
500V
W
W
1M ~ 5.5G
DC 500V 0% ~ +20%
@1M
3.5mA W
1000V
W
W
2M ~ 40G
DC1000V 0% ~ +20%
2500V
W
W
5M ~ 100G
DC 2500V 0% ~ +20%
5000V
WW
10M ~ 1000G
DC5000V 0% ~ +20%
ACCURACY SPECIFICATION
Accuracy ± (% of reading ) +
(number of least significant
digits ).
Relative Humidity
Operating Temperature 18°C ~ 28°C
45 ~ 75% RH
Display (LCD)
Operating Temperature
Digital : 9999 Counts, Analog bar graph with LCD backlight
-10°C~40°C (14°F~104°F )
Storage Temperature -20°C~ 60°C (-4°F~ 152°F)
Relative Humidity
£85% @ 0°C~ 40°C below ; £90% @ -20°C ~ 60°C.
Battery Type
8 pcs of 1.5V (LR 14) Batteries or power adaptor
(input voltage 230, 50/60Hz, 150 mA, input DC15V, 1.0A).
(optionally available at extra cost.)
Dimensions 202(H) x 155(W) x 94(L) mm
Weight Approx. 2kg (including battery).
GENERAL SPECIFICATION
Auto discharge Voltage function
Use the compare function to set a pass/fail compare
level for the insulation measurements.
Auto ranging.
Displays Battery Condition
Equips with function and battery indicator icons.
Maximum : around 1.0A, Average : around 20mA
Bright backlight for clear readings in poorly lighted areas.
Via USB interface.
Display OL on Insulation Resistance range
18 points
The Meter automatically selects best range
And red light will on.
Range
Overloading
Battery Indicator
Icon Display
Current Consumption
Display Backlight
Computer Connection
Data Logging and Recall
Autorange
Warning
Voltage
Compare Measurement
To carry out measurement by setting specified time
within15 Minutes
Polarization Index is the ratio of insulation resistance.
You can pre-set two points of time and automatically
carry out the measurement
PI Measurement
Time
Accessories Two pcs of plug test lead to one alligator clip (Black & Green),
One pc of Two plugs test lead to alligator clip (Red), Batteries,
User’s manual, Tool Box, USB interface cable, Software,
Power Adaptor.
Compliances IEC 61010 CAT. III 600V over voltage
and double insulation standard
CE IEC61010, IEC61326, IEC61557
VOLTAGE MEASUREMENT
Measurement Range
DC Voltage AC Voltage
±30 ~ ±600V
30 V~ 600V(50/60Hz)
Resolution 1 V
Accuracy ± (2% + 3)
Preliminary Data
An ISO 9001:2008 Company
®®
W
:
W±(3%+5)
0.0M ~ 99.9M
W
:
W±(5%+5)
100M ~ 9.99G
W
:
W±(10%+5)
10.0G ~ 20.0G
W
:
W±(3%+5)
0.0M ~ 99.9M
W
:
W±(5%+5)
100M ~ 9.99G
W
:
W±(10%+5)
10.0G ~ 40.0G
W
:
W±(3%+5)
0.0M ~ 99.9M
W
:
W±(5%+5)
100M ~ 9.99G
W
:
W±(10%+5)
10.0G ~ 100.0G
W
:
W±(3%+5)
0.0M ~ 99.9M
W
:
W±(5%+5)
100M ~ 9.99G
W
:
W±(10%+5)
10.0G ~ 99.9G
Above W: [±(20%+5)
100G
Humidity :below 50%]
An ISO 9001:2008 Company
®®
@2M
3.5mA W
@5M
3.5mA W
@10M
3.5mA W

AN ISO 9001:2008 COMPANY
MODEL KM 2805MK-1
DIGITAL
INSULATION RESISTANCE
TESTER
INSTRUCTION MANUAL

Title Page No.
Introduction..................................................................................................... . 05
Unpacking the Meter........................................................................................ 05
Safety Information............................................................................................ 06
International Electrical Symbols....................................................................... 08
Battery Saver (Sleep Mode)............................................................................. 08
Battery Indication............................................................................................. 08
The Meter structure..........................................................................................09
Display............................................................................................................ .12
Key Functions.................................................................................................. 14
Measurement Operation.................................................................................. 17
A. Measuring Voltages................................................................................ 17
B. Measuring Insulation Resistance........................................................... 19
a) Continuous Measurement................................................................. 20
b) Timed Measurement......................................................................... 20
c) Polarization Index (PI) Measurement............................................... 21
d) Compare Function............................................................................22
The use of Power Adaptor................................................................................23
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KM 2805MK-1
AN ISO 9001:2008 COMPANY

Title Page No.
USB Interface................................................................................................... 24
Maintenance...................................................................................................... 25
A. General Service........................................................................................ 25
B. Replacing the Battery............................................................................... 26
Specifications................................................................................................... 27
Safety and Compliances.................................................................................. 27
Physical Specifications..................................................................................... 27
General Specifications...................................................................................... 28
Feature Summary............................................................................................. 28
Detailed Accuracy Specifications..................................................................... 29
A. Voltage Measurement.............................................................................. 29
B. Insulation Resistance Measurement........................................................ 30
Test Certificate...................................................................................................31
Warranty.............................................................................................................32
KM 2805MK-1
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AN ISO 9001:2008 COMPANY

Table Title Page No.
1. Unpacking Inspection........................................................................................ 5
2. International Electrical Symbols....................................................................... 8
3. Battery Indication ........................................................................................... 8
4. Meter Front Description ................................................................................... 10
5. Meter Side Description..................................................................................... 11
6. Display Description........................................................................................... 13
7. Key Description................................................................................................ 14
List of Tables
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KM 2805MK-1
AN ISO 9001:2008 COMPANY

Figure Title Page No.
1. The Meter Front Structure................................................................................ 9
2. The Meter Side Structure................................................................................. 11
3. Display..............................................................................................................12
4. Voltages Measurement.....................................................................................17
5. Insulation Resistance Measurement................................................................ 19
6. The Use of Power Adaptor............................................................................... 23
7. USB Interface Connection............................................................................... 24
8. Battery Replacement ...................................................................................... 26
List of Figures
KM 2805MK-1
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AN ISO 9001:2008 COMPANY

Introduction
Model KM 2805 insulation Resistance Tester (hereafter,
“the Meter”) is a handheld instrument designed primarily
to make resistance / insulation resistance measurement.
Unpacking the Meter
The Meter includes the following items :
Table 1. Unpacking Inspection
Item Description Qty.
1. English Operating Manual 1pc
2. One plug test lead to one alligator clip
(Black colour)
1pc
3.
4.
One plug test lead to one alligator clip
(Green colour)
1pc
Two plugs test lead to one alligator clip
(Red colour)
1pc
5. 1.5V Battery (LR14) 8pcs
6. Tool Box 1pc
7. USB interface Cable 1pc
8. Software 1pc
9. Power Adaptor (input voltage 230V,
50/60Hz, 150mA, output DC 15V, 1100mA)
(optionally, available at extra cost)
1pc
It is recommended to select the specific 8 pcs of #2 charging
battery and a charger;
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KM 2805MK-1
AN ISO 9001:2008 COMPANY
In the event you find any missing or damage, please contact
your dealer immediately.

Safety Information
This Meter complies with the standards IEC61010 safety
measurement requirement: in pollution degree 2,
overvoltage category (CAT. III 600V) and double insulation.
Use the Meter only as specified in this operating manual,
otherwise the protection provided by the Meter may be
impaired.
CAT II: Local level, appliance, PORTABLE EQUIPMENT
etc., with smaller transient voltage overvoltages than
CAT. III.
Danger identifies conditions and actions that pose
hazard(s) to the user.
Warning identifies avoiding electric shock.
Caution identifies conditions and actions that may
damage the Meter and carrying out accurate
measurement.
!
Operating Caution identifies conditions that user
needs to take extra care during operating the Meter
International electrical symbols used on the Meter
and in this Operating Manual are explained on
page 8.
DANGER
Use of instrument in a manual not specifed by the
manufacturer may impair safety features / protection
provided by the equipment. Read the following safety
information carefully before using or servicing the
instrument.
?Do not apply more than 600V.
?Do not use the Meter around explosive gas, vapor
or dust.
?Do not use the Meter in a wet environment.
?When using the test leads, keep your figures away
from the lead contacts. Keep your figures behind
the finger guards on the leads.
?Do not use the Meter with any parts or cover removed.
KM 2805MK-1
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AN ISO 9001:2008 COMPANY

?Do not use the Meter if it is damaged or metal part is
exposed. Look for cracks or missing plastic.
?Be careful when working above 33V rms,
46.7V AC rms or 70V DC. Such voltages pose a
shock hazard.
?Discharge all loading of circuit under test after
measuring high voltage.
?Do not change battery when the Meter is in wet
environment.
?Place test leads in proper input terminals.
Make sure all the test leads are firmly connected to
the Meter’s input terminals.
?Make sure the Meter is turned off when opening the
battery compartment.
?When carrying out insulation measurement, do not
contact the circuit under test.
WARNING
!
?When performing resistance tests, remove all power
from the circuit to be measured and discharge all
the power.
?When servicing the Meter, use only the same model
number or identical electrical specifications of test
leads and power adaptor.
?Do not use the Meter if the battery indicator( )
shows a battery empty condition. Take the battery
out from the meter if it is not used for a long time.
?Do not use or store the Meter in anenvironment of
high temperature, humidity, explosive, inflammable
and strong magnetic field. The performance of the
Meter may deteriorate after dampened.
?Soft cloth & mild detergent should be used to clean
the surface of the Meter when servicing. No abrasive
& solvent should be used to prevent the surface of
the Meter from corrosion, damage and accident.
?Dry the Meter before storing if it is wet.
CAUTION
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KM 2805MK-1
AN ISO 9001:2008 COMPANY

INTERNATIONAL ELECTRICAL SYMBOLS
International symbols on the Meter and in this Manual
are explained in Table 2.
Table 2. International Electrical Symbols
Risk of electric shock
Equipment protected by double or reinforced insulation.
DC Measurement
AC Measurement
Grounding
See Manual
Empty of Built-in Battery
Conforms to Standards of European Union
Battery Saver (Sleep Mode)
The Meter enters the Sleep Mode and blanks the display
if there is no button press for 15 minutes. This is done to
conserve battery power. The Meter comes out of Sleep
Mode when ON/OFF button is pressed and hold for
1 second.
Battery Indication
There is a battery indicator shows on the display
upper left hand corner. Below Table 3 in the
explanation.
Table 3. Battery Indication
Battery
Indicator Battery Voltage
10V or less. It means the battery is
empty, don’t use the Meter as it cannot
guarantee accuracy.
10V~10.5V. It means the battery is
nearly empty, replacing battery is
necessary. At this status, the Meter can
still do 500V and 1000V output
measurement, accuracy will not be
affected.
10.6V ~ 11.5V
11.6V or more
KM 2805MK-1
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AN ISO 9001:2008 COMPANY

The Meter Structure
Below Figure 1 and Table 4 shows the Meter front
structure and description.
21 20 19 18
EARTH GUARD LINE
CAT III
600 V
!
8
:.. .
..)))
1
DC AC
~VW
MW
GW
TW
V
S1S2 S3
100K 1M
10M
100M
1G
10G
100G
1T
8
NG GOOD
FUL
CU
min sec
COMP Time1 Time 2 SAVE LOAD P1
)
)
ON / OFF
LIGHT LOAD
SAVE
TEST
TIMECOMP
DCV ACV
USE
IR
PUSH 1 SEC TO TEST
!
1
2
3
4
5
6
7
8
910 11
17
16
15
14
13
12
GREEN BLACK RED
22
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KM 2805MK-1
AN ISO 9001:2008 COMPANY
When Charging battery is applied, the charging battery
work mode should be selected at the startup: press USB
key prior to startup, then press down ON/OFF, LCD
screen will display CHA or GEN, and CHA will be displayed
by pressing the up/down key, after pressing USB key to
confirm, it sucessfully enters the charging battery work
mode. GEN means the general alkaline battery work mode.
CLEAR

LCD
Scroll Button
Emergency Stop
Data Clear the Display Backlight Button
Down Button
On/Off Button
Compare Button
Insulation Resistance Button
DC Voltage measurement Button
Timer Button
AC Voltages Measurement Button
Test Button
USB Button
Data Store Button
Data Recall Button
Scroll Button
Table 4. Meter Front Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
LINE : High Voltage output input terminal
(two plugs red test lead to one alligator clip)
17
Testing leads :
Two plugs red test lead to one alligator clip.
One plug black test lead to one alligator clip.
One plug green test lead to one alligator clip.
EARTH : High resistance measurement input
terminal (one plug green test lead to one
alligator clip)
GUARD : Grounding protection input terminal
(one plug black test lead to one alligator clip)
High Voltage line shielding input terminal
(two plugs red test lead to one alligator clip)
Up Button
18
19
20
21
22
KM 2805MK-1
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AN ISO 9001:2008 COMPANY

Below Figure 2 and Table 5 shows the Meter side
structure and description
12
3
Figure 2. The Meter Side Structure
Table 5. Meter Side Description
1
2
3
Safety Shutter
Power adaptor Input Terminal
USB Port
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KM 2805MK-1
AN ISO 9001:2008 COMPANY

.)))
GOOD
V
M
G
T
PI
LOAD SAVE Time2
Time1
COMP
S1 S2 S3
min sec
G
FUL
CLR
DC
AC
NG
0
100K
1M 10M
100M
1G
10G
100G
1T
8
V
13
12
11
10
9
8
7
5
4
2
3
19
21 20 18 17 16 15
14
Figure 3. Display
Display
Table 6 & Figure 3 describe the display
KM 2805MK-1
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AN ISO 9001:2008 COMPANY
6
1

Table 6 DisplayDescription
Indicator for DC Voltage
Indicator for data store full
Indicator for clearing
Indicator for AC Voltage
Indicator for timer
Step Symbol
Indicates selected pass/fail compare value
Indicates for negative reading
Timer 1 symbol
Timer 2 symbol
Data store is on
1
2
3
4
5
6
7
8
9
10
11
Number Meaning
Data recall is on
Indicator for polarization Index
Unit symbols
The continuity buzzer is on
Compare feature pass
Analogue bar graph
Risk of electric shock
Compare feature fail
Indicator for power adaptor
Battery life indicator
12
13
14
15
16
17
18
19
20
21
Number Meaning
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KM 2805MK-1
AN ISO 9001:2008 COMPANY

Table 7. Key Description
Key Functions
Press to store the current measurement
value. The maximum number of stored
reading is 18. When the stored readings
memory is full, the Meter shows FULL &
stop storing. Press and hold CLEAR
to clear the stored value in order to store
the next measurement value.
ON/OFF Turn on or off the Meter, Press and hold
the button for 1 second to turn the Meter
on. Press again to turn off the Meter.
The Meter default range is 500V
insulation resistance continuous
measurement when turning on.
LIGHT Backlight open and close buttons.
CLEAR Clear memory data key
SAVE
LOAD ?Press once to recall the first stored
value.
?Press again to exit load feature.
?Load feature can only be used when
there is no high voltage output.
?When the insulation resistance
measurement has no testing voltage
output, press to select one voltage
range up.
?Under load mode:press to recall the
previous stored value.
?When the insulation resistance
measurement has no testing voltage
output, press to select one voltage
range down.
?Under load mode:press to recall the
next stored value.
KM 2805MK-1
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AN ISO 9001:2008 COMPANY

Table 7. Key Description
?Press once to start the data
transferring to the computer via USB,
USB symbol shows on the display.
?Press again to stop the data
transferring to the computer via USB,
USB symbol disappears.
?When set the timer duration for the
measurement of insulation resistance
or polarization index, press to decrement
the time. The maximum length of time is
15 minutes and 30 seconds, the Meter will
automatically carry out measurement.
?When compare feature measuring
insulation resistance, press to decrement
a resistance comparing value.
?After polarization index measurement,
press to display polarization index, TIME2
insulation resistance value and TIME1
insulation resistance value in sequence.
?When set the timer duration for the
measurement of insulation resistance
or polarization index, press to increment
the time.
?When use the compare feature
measuring insulation resistance,
press to increment a resistance
comparing value.
?After polarization index measurement,
press to display polarization index,
TIME2 insulation resistance value
and TIME1 insulation resistance
value in sequence.
USB
The maximum length of time is 30
minutes and 30 seconds, the Meter will
automatically carry out measurement.
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KM 2805MK-1
AN ISO 9001:2008 COMPANY

Set a pass / fail limit for insulation tests.
The default value is 10MW.
COMP
Table 7. Key Description
Press to step through continuous
measurement, timed measurement and
polarization index measurement in sequence.
TIME
Press to stop or start an insulation
resistance test.
TEST
Press to initiate insulation resistance
measurement.
IR
Press to initiate DC Voltage measurement.
DCV
Press to initiate AC Voltage measurement.
ACV
KM 2805MK-1
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AN ISO 9001:2008 COMPANY

Measurement Operation
Below section explains how to make measurements.
Press and hold ON/OFF to turn on the Meter, press
again to turn off the Meter. The Meter default range is
500V insulation resistance continuous measurement
when turning on.
A. Measuring Voltages
H
H L
H
H L
ON / OFF
CLEAR
LIGHT LOAD
SAVE
TEST
TIMECOMP
DCV ACV
USE
IR
PUSH 1 SEC TO TEST
!
H
H L
Green
V COM
Red
GUARD
CAT III
600 V
CAT IV
1000V
!
Figure 4. Voltages Measurement
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KM 2805MK-1
AN ISO 9001:2008 COMPANY

?When voltage measurement has been completed,
disconnect the connection between the testing leads
and the circuit under test and remove testing leads
away from the input terminals of the Meter.
Operating Caution
!
?To avoid harms to you or damages to the Meter,
Please do not attempt to measure voltages higher
than 600V or 600V rms, although readings may be
obtained.
?Special care should be taken when measuring
high Voltage.
To measure voltages, set up the Meter as Figure 4 & do
the following.
1. Press DCV or ACV button to select DC voltage or
AC voltage measurement.
2. Insert the red and green test lead into the tested
circuit.
3. When measuring DC voltage. If the red test lead is
negative voltage “-” symbol will show on the display.
Note
KM 2805MK-1
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AN ISO 9001:2008 COMPANY