Kyoritsu Electrical Instruments 6205 User manual

INSTRUCTION MANUAL

PORT ABLE APPLIANCE TESTER

KEW6205

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CONTENTS

1. Safe testing .................................................................................3

2. Product summary and explanation .............................................6

2.1 Product summary ..................................................................6

2.2 Test Function.........................................................................6

2.3 Features ................................................................................6

2.4 Tester layout ..........................................................................7

2.4.1 Function Switches .......................................................7

2.4.2 LCD indications ...........................................................9

2.4.3 Connector .................................................................11

2.5 Accessories ........................................................................12

2.6 Optional accessories ..........................................................13

3. Specification .............................................................................14

3.1 General specification, measuring range and accuracy ......14

3.2 General specification ..........................................................16

3.3 Threshold and display ......................................................... 17

4. Preparation before a measurement ..........................................18

4.1 Visual inspection .................................................................18

4.2 Battery Voltage Check ........................................................18

4.3 Setting .................................................................................18

4.3.1 Null setting ................................................................ 18

4.3.2

(How to change between 250V and 500V) ................19

5. Measuring method ....................................................................20

5.1 Class I Test ..........................................................................20

5.2 Class ll Test .........................................................................23

5.3 Extension Leads Test .........................................................28

5.4 RCD TEST ..........................................................................32

6. Memory/ Recall function ...........................................................37

6.1 Memory function .................................................................37

6.2 Recall function ....................................................................38

6.3 Delete the saved data .........................................................39

7. Print function .............................................................................40

8. USB communication .................................................................43

9. Clock mode ...............................................................................44

10. Backlight ..................................................................................45

11. Battery / Fuse replacement .....................................................45

11.1 Battery Replacement ........................................................45

11.2 Fuse Replacement ...........................................................46

12. Shoulder strap attachment......................................................46

13. Maintenance ............................................................................47

Voltage setting for insulation resistance measurement

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1. Safe testing

Electr icity is danger ous and can cause in jury and death. A lways
treat it with the greatest of respect and care. If you are not quite sure

how to proceed, then stop, take advice from a qualified person.

This instr uction manual c ontains warning and s afety rules whic h
must be observed by the user to ensure safe operation of the Tester

and retain it in safe condition. Therefore, read through these

operating instructions before using the Tester.

IMPORTANT:

The Tester must only be us ed by a comp etent and tra ined per son
and operated in strict accordance with these instructions.
KYORITS U will not acc ept liabilit y for any damage or in jury caused
by misuse or non-compliance with the instructions or with the safety
procedures.
It is essent ial t o read a nd to un der st and t he s afet y r ule s c ont aine d
in these instructions and with the safety procedures.
The symbol # i ndicated on th e Tester me ans that the user m ust
refer to the re late d sec ti on s in th e man ual fo r saf e op erat io n of th e
Tester.
Be sure to ca refully read in structi ons followi ng each symbo l # in
this manual.

# DANGER : is reserved for conditions and actions that are likely

to cause serious or fatal injury.

# WARNING: is reserved for conditions and actions that can

cause serious or fatal injury.

# CAUTION : is reserved for conditions and actions that can

cause injury or instrument damage.

# DANGER

● The Tester can be connected only to the commercial power of

100V – 253V, 50Hz.

● For safety reasons, only use the Test Leads designed to be

used with this Tester and recommended by KYORITSU.

● Use only grounded mains outlets to supply the Tester.

● Do not touch the device under test while testing is in progress.

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# DANGER

●

Since a high voltage 250V or 500V is being output continuously,
when measuring insulation resistance, the user may get an

electrical shock. Any capacitors in the appliance under test may

become charged during testing and may contain hazardous

voltages do not touch them.

● When testing, always be sure to keep your fingers behind the

safety protective finger guard on the test leads.

●

Disconnect the T ester from the power supply when measurement

is finished.

● Do not leave the Tester with connected to the power supply.

# WARNING

●

Never open the instrument case – because dangerous voltages
are present. Only fully trained and competent electrical engineers
should open the case.

● If abnormal conditions of any sort are noted (such as a faulty

display, unexpected readings, broken case, cracked test leads,

etc.) do not use the Tester and return it to your distributor for
inspection and repair.

● Never attempt to use the Tester if the Tester or your hands are
wet.

● Stop using the test lead if the outer jacket is damaged and the
inner white jacket is exposed.

# CAUTION

● When using Test Leads with the alligator clip, be sure to check
the alligator clip is firmly connected to the metal part of the
device under test. Otherwise, inaccurate measurements or

arcing at the contacts may occur.

● The rated measuring voltage for the insulation test is 250V or
500V DC. If this voltage seems too high for the appliance
under test contact the appliance manufacturer for advice.

● When testing a faulty appliance, it may trip the circuit breaker

of main power supply during test and may cause interruption of
service. Be careful when the same main power supply is used
for PCs.

● We are not liable for loss of data on PC during testing with the
Tester. The appliance under test is powered on during most

tests, but please turn it to the OFF position after testing.

● Use a very slightly damp cloth for cleaning the Tester. Do not
use abrasives or solvents.

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Measurement Category

To ensure safe operation of measuring instruments, IEC 61010

establishes safety standards for various electrical environments,

categorized as O to CAT IV, and called measurement categories.

Higher-numbered categories correspond to electrical envi ronments

with greater momentary energy, so a measuring instrument

designed for CAT III environments can endure greater momentary
energy than one designed for CAT II.

O : Circuits which ar e not directly c onnected to th e mains

power supply.

CAT II : Electrical circuits of equipment connected to an AC

electrical outlet by a power cord.

CAT III : Primary ele ctrical ci rcuits of the equi pment connec ted

directly to the distribution panel, and feeders from the

distribution panel to outlets.

CAT IV : The circuit from the ser vice drop to the service entrance,

and to the power meter and primary over-current
protection device (distribution panel).

O: Device which is
not directly
connected to the
mains power supply

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2. Product summary and explanation

2.1 Product summary

KEW6205 (Tester) is a hand-held portable appliance tester and can
test elec tr ic al sa fet y of Cla ss I an d Clas s II ap pli anc es. T he Tester
perf orms test a nd indicat es PASS/ FAIL result c omplyin g with the

criteria of judgement defined in AS/NZS3760.

As a guide, AS/NZS3760 defines these two categories as follows:

Class I : Appliances which have a functional insulation throughout

and an earth connected case. These are often described
as earthed appliances.

Class II : Appliances which have both functional and additional

insulation where any metal parts cannot become
Liveunder fault conditions.

2.2 Test Function

●CL I:
 ･

Protective conductor resistance test (Test current 200mA DC nominal)

･Insulation test (250V or 500V)
 ･Run leakage current test
 ･Load current test

●CL II:
 ･Insulation test (250V or 500V)
 ･Run leakage current test
 ･Load current test

●Extension Lead test
 ･

Protective conductor resistance test (Test current 200mA DC nominal)

･Insulation test (250V or 500V)
 ･L-N Short test
 ･Polarity test
 ･Run leakage current test

●RCD test

2.3 Features

●

Check for whether the appliance is switched ON.

●

Selection for 250V or 500V on the insulation resistance test.

●

Null function for the protective conductor resistance test.

●

Auto-testing & PASS/ FAIL indication with backlight

●

Auto-power-off

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2.4 Tester layout

Connector

Display(LCD)

Switches

Connector

2.4.1 Function Switches

Switch Details

Short press: Starts CLI test.
CLI
switch

CLII
switch

Extension
switch

NULL
switch

(Continuity test: 1 sec.)

Long press: Starts CLI test.

(Continuity test: 5 sec.)

Starts CLII test.

Short press: Starts Extension lead test.

(Continuity test: 1 sec.)

Long press: Starts Extension lead test.

(Continuity test: 5 sec.)

Performs NULL.

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Switch Details

Short press:
Power
switch

Long press: Turns on/ off the Tester.

250V
/500V

Light
switch

RCD
switch

Memory
switch

Switches output voltage for insulation

resista nce test b etween 25 0 V and 50 0

V. (Default setting: 250 V)

Short press: Turns on/ off LCD backlight.

Long press: Enters into clock mode.

Switches to RCD stand-by screen.

Another press on the stand-by screen

starts RCD test. Long press on the

screen switches test current between 10

mA and 30 mA. (Default setting: 30 mA)

Saves test results.

Works as ESC switch. Returns
to the stand-by screen when
a test is halted byFAILresult.

Recall
switch

Print
switch

Recalls the saved data.

Transfers the disp layed test result to a

printer.

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2.4.2 LCD indications

<All symbols to be displayed on the LCD>

Display symbols

NULL value has been set.

Rated voltage for insulation resistance
test

Leakage current test under actual
working condition

Rated current for RCD test

Measurement in progress

Protective conductor resistance

Insulation resistance

Insulation resistance between L-N
(Extension Lead Test)

Leakage current

Load current

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Mains voltage

Polarity test result

Indicates items failed the test.

RCD test range

Prompts to check and turn on a DUT.

Indicates the connection for RCD test
is incorrect.

Indicates the resistance between L-L
(N-N) is less than 10 Ω and polarity is
correct.
Open circuit warning –resistance
between L-L (N-N) is 10 Ω or higher at
polarity test.
Crossed L-N polarity warning ­resistance between L-N (N-L) is 10 Ω
or lower at polarity test.
Short-circuited L-N warning –
resistance between L-N is 100 kΩ or
lower at insulation test. (Extension
Lead Test)

Fault voltage of 50 V or higher is
detected at RCD test.

Test result is PASS.

Test result is FAIL.

RCD tripped at fault current detection.
Warning – voltage of 30 V or higher is

being applied to the IEC connector
while a function other than RCD is
selected.

Blinks while saving data.

Data no. given for the saved data.

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2.4.3 Connector

(1)

(5)

(6)

(4)

(3)

(2)

(1) Test socket Insert the mains plug of DUT to this

socket for the polarity test of protective

conductor resistance, insulation

resistance and leakage current test.

(2) Terminal for

mains lead

(3) Rpe Test Lead

terminal

(4) Terminal for

Extension leads
adaptor

(5) Terminal for USB

cable

(6) Terminal for

printer cable

This terminal is connected to a mains
supply via MODEL7277.

Connect the test lead MODEL7129A to
this terminal for the measurement of

protective conductor resistance, and clip

the metal parts of DUT with the alligator
clip.

It corresponds to L, N, E of test socket,

and the extension leads adaptor
connected with the cord reel to be
plugged to it.

Connect the optional USB cable to this
terminal to transfer the internal data to a
PC.

This terminal is connected to a printer
with the optional printer cable
MODEL7275.

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2.5 Accessories

(1) Mains lead MODEL7277
This mains lead can be connected to the mains supply so that the

Tester supply power to the DUT.

(2) Test Lead with s afety alligator c lip (MODEL7129A) and Probe

with Blade type Prod(MODEL7161A). The probe and alligator
clip are interchangeable.

Please use it according to a measurement use.

Alligator Clip

Probe with Blade Type Prod

*1

Protective finger guard is a part providing protection against

Protective
finger guard*

Protective
finger guard*

1

1

electrical shock and ensuring the minimum required air and
creepage distances.

(3) Extension leads adaptor MODEL7276
Thi s is for connect ing the Tester a nd an extension lead (co rd

reel).

IEC Connector

(4) Soft case MODEL9193

(5) Six size AA alkaline batteries(LR6)

(6) Instruction manual
(7) Shoulder strap with Buckle

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2.6 Optional accessories

(1) Printer cable MODEL7275

(2) USB cable with "KEW Report(Software)" MODEL8263-USB

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3. Specification

3.1 General specification, measuring range and accuracy

Mains voltage indication:

Display range 30 - 270 V
Hi/ Lo indication < 30 V: No voltage indication

> 270 V: >270 V
Resolution 1 V
Accuracy ±5 V

* Voltage between L-N of mains lead terminal is measured and

displayed at voltage test.

Protective conductor resistance test

Measuring range
Over-range indication
Resolution 0.01Ω
Open-circuit voltage 5 V ±0.4 V DC
Measuring current 200 mA DC (nominal value)
Accuracy ±3%rdg ±5dgt

* Resistances exceeding 3 Ω cannot be canceled by NULL function.

Insulation resistance test

Rated voltage 250V 500V
Measuring

range
Over-range

indication
Resolution 0.01 MΩ
Rated voltage 250V DC +20%, -10%

Short-circuit
current

Rated current
Accuracy ±2%rdg±3dgt

0.00 - 20.00 Ω (NULL value included.) *
> 21.00 Ω

0.00 - 20.00 MΩ

> 21.00 MΩ

500V DC+20%, -10%

@ 1MΩ

1.5 mA DC or less

1 -1.2 mA @ 0.25 MΩ

@ 1MΩ

1 -1.2 mA @0.5 MΩ

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Leakage current test under actual working condition:
(Load current is also measured.)

Item Load current Leakage current
Mains voltage

range
Measuring range 0.10 - 10.00 A rms 0.10 - 20.00 mA rms
Display range 0.00 - 12.00 A 0.00 - 21.00 mA
Over-range

indication
Resolution 0.01A 0.01mA
Accuracy ±10%rdg ±5dgt ±3%rdg ±5dgt
Max. rating 2.5 kVA max./

Insulation test between L-N at Extension Lead Test

Open-circuit voltage 4.5 V ±0.5 V DC
Criteria of judgement 100 kΩ ±20 kΩ or less: LCD shows

RCD test:
Four tests with the pre-set rated current are performed in the
following sequence: ×1(0°)→×1(180°)→×5(0°)→×5(180°).

Rated voltage 230 V -15% +10% (50Hz)
Rated current 10 mA/ 30 mA
Function ×1 ×5
Test duration 0.0 ms - 500.0 ms 0.0 ms - 40.0 ms
Energization FS ±3%
Test current accuracy ±3%
Operating time
accuracy

100 - 253 V/ 50 Hz

> 12.00 A > 21.00 mA

---

15 sec. continuous

<0.10 MΩand the measurement is
halted.

±2 ms (≦40 ms)
±8 ms (>40 ms)

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3.2 General specification

Reference conditions Specifications are based on the

following conditions, except

where otherwise stated: -

(1) Ambient temperature: 23±5˚C

(2) Relative humidity: 45 - 75%

(3) Attitude: Horizontal
(4) AC power supply: 230 V, 50Hz

(5) Altitude: 2000m or less

Battery type Six size AA alkaline batteries

(LR6)

Operating temperature and
humidity range

Storage temperature and
humidity range

Rate voltage and frequency Rated voltage: 230 V -15% +10%

Maximum load current at test
socket

Outer dimension and weight Outer dimension:

Auto power off The Tester turns off automatically

Possible number of measure­ments where battery voltage
is within the effective range
(measuring every 30 sec.)

0ºC to +40ºC, relative humidity:

85% or less (no condensation)

-20ºC to +60ºC, relative humidity:

85% or less (no condensation)

Rated frequency: 50 Hz

2.5 kVA (15sec.)

261(L) × 104 (W) × 57(D)mm
Weight (including batteries):
Approx. 940g

after 10 minutes.
Approx. 3000 times

(CLI Rpe: 0 Ω, Rins: 1.1 MΩ)

Applicable standards:

Instrument operation AS/NZS3760:2010
Safety IEC/EN61010-1 CAT II 300V-instrument

IEC/EN61010-2-030
IEC/EN61010-031

MODEL7129A(CAT III 600V) *
EMC EN61326-1, 2-2
Environmental standard EN50581

* When the ins trument and the test l ead are combined and u sed

together, whichever lower category either of them belongs to will

be applied.

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Symbols used on the Tester:

Electrical circuits of equipment connected to an AC

CAT II

electrical outlet by a power cord.
Double or reinforced insulation



User must refer to the explanations in the instruction

#

manual.
Earth



ATT（Anti-Trip Technology)
The Tester uses mains voltage across L-N for PRCD
testing.I t enabl es PRCD te sting w ithou t trip ping th e RCD
of mains power.

Crossed-out wheel bin symbol (according to WEEE
Directive: 2002/96/EC) indicating that this electrical

product may not be treated as household waste, but that it

must be collected and treated separately.

3.3 Threshold and display

Protective

Function

Class l
Class ll
Extension

Lead

RCD

RCD Type Type l (10mA) Type ll (30mA)
Function ×1 ×5 ×1 ×5

conductor
resistance

RPE ≦ 1Ω RINS ≧ 1MΩ ILEAK ≦ 5mA

RPE ≦ 1Ω RINS ≧ 1MΩ ILEAK ≦ 1mA

40ms 300ms 40ms

Insulation
resistance

RINS ≧ 1MΩ ILEAK ≦ 1mA

Leakage
current

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4. Preparation before a measurement

4.1 Visual inspection

Before starting a measurement, the user should undertake visual
checks on the mains lead, case and that the correct type and rated
fuse is fitted to the appliance under test. There should also be no

evidence of damage of a nature that may impair the electrical safety
of the appliance.

4.2 Battery Voltage Check

(1) Inser t b at ter ie s wit h ref ere nc e to 11. Batter y/ Fus e re pla cem ent

in this manual.
(2) Hold down Power switch 1 sec. to turn on the Tester.
(3) Che ck t he b at tery indic ator d isp layed i n th e upp er l ef t c or n er of

the LCD.

If just the last one segment of the indicator remains, the battery

voltage is extremely low. Refer to 11. Battery/ Fuse replacement

and replace batteries to perform further measurements.

If an empty battery indicator is displayed, the battery voltage is

lower than the working vo l tage limit. Re place batteries imme diately
to keep accurate measurement.

Battery recommendation:

Use of alkaline battery is recommended. Use of other type of
batteries may cause improper indication of battery level.

4.3 Setting

4.3.1 Null setting

AS/NZS3760 pass level for Protective conductor resistance is 1 Ω,

which is a low value. So even the resistance of Test Leads will affect
the measurement result.
The Tester can cancel the resistance of test lead by pressing
The proc edure of Nul l setting i s shown bel ow. The Null func tion is

held in memory even when the Tester is turned off, so theres no
need to Null the lead resistance every time. However, when replacing
fuses or test leads, it is recommended to do a Null setting again.

NULL

.

Note:

Null sett ing is possibl e at both Class l Test and Exten sion Lead

Test. However, only one Null value can be held in memory. For
example, when the Null setting is carried out at Class l Test, the set

value will also be used for Extension Lead Test (unless it is reset).

(1) Ins ert Test Lead with probe ( MODEL7161A) into the R pe Test

Lead terminal of the Tester, and contact the tip of the Test Lead

with the earth contacts of the socket on the Tester.
(2) Press NULL switch on any screen.

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(3) The screen switches to NULL screen, and NULL measurement

star ts. The LCD shows bl i n k ing MEAS mark and mea su r ed

value during a measuremen t. The measured value is saved and

subtracted from the further measured values.

(4) If the m easu red val ue is le ss th an 3 Ω, previous NULL value is

cleared and a new value is saved. When 3 Ω or higher is

measured, previous NULL value is just cleared (NULL mark

disappears).

4.3.2 Voltage setting for insulation resistance measurement
(How to change between 250V and 500V)

Two different rated voltages, 250 V and 500 V, are available for

insulation resistance test. Press 250V/500V sw itch on the stand-by
screen or w hile measur ed result is b eing displaye d at CL I/ CL II/
Extension lead test. Default setting is 250 V.

Sets to 500 V.

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Sets to 250 V.

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5. Measuring method

5.1 Class I Test

The purpose of the test carried out for Class I appliances is to check
the resistance of earth continuity from exposed metal parts and the
plug is bel ow a c ertain level an d th e insu lat ion r es ist an ce b et we en
live and neutral connected together and earth is 1MΩ or more.

To perform Class I test, connect the mains plug of the appliance to

the test socket (1 ) described in clause 2.4.3. Connector and the Rpe

Test Lead terminal (3). To perform RUN leak test, connect Mains

lead MODEL7277 to Mains lead terminal (2).

Connect to exposed metal
parts but not rotating parts or
heating elements.

Power ON
the DUT.

RUN leak test:
Connect Tester to outlet

Press CLI switch for Class I test.

1. Continuity test

2. Insulation test Between LINE, NEUTRAL and

3. Leakage
current test

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Earth continuity test between the
exposed metal parts and plug

EARTH.
RUN Leak test:

Connect Tester to outlet:
(Load current is also measured.)

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CL I Test Flow

(1sec .)

Press to halt a
measurement in
progress.

Tester performs next
test when CL I switch
is pressed while a test
is halted with “FAIL”
indication.

Stand-by

CLⅠ

Voltage value is displayed
while the Tester is connected
to an outlet.

Press CLI to start a test.
Short press: 1 sec of continuity test
Long press: 5 sec of continuity test

Continuity test

Rpe<1Ω =PASS Rpe>1Ω = FAIL

(Red backlight blinks.)

2. Insulation resistance test 1. Continuity test

DUT ON Check

DUT is ON.

DUT is OFF.

Insulation resistance test

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DUT is powered on, or
CL I is pressed.

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Rins≧1MΩ = PASS Rins＜1MΩ = FAIL

(Red backlight blinks.)

Check screen for RUN leakage test.
Buzzer sounds and blue backlight blinks.

3. Leakage current test

CLⅠ

RUN Leak/ Load current test

ILEAK≦5mA = PASS

(Green backlight blinks.)

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ILEAK>5mA= FAIL

(Red backlight blinks.)

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# WARNING

● When conducting a leakage test the appliance will automatically
power on and will operate in its normal manner. It is imperative
that the app liance is se cured safe ly before the te st is carr ied
out. Ex tra c are ne eds to be t aken wit h appl ianc es whi ch have
heating elements and rotating parts.

● Firmly insert the plug of the appliance to the socket of the
Tester. Plugs may get hot if Leakage cu rr ent tes t is pe r for me d
with improper connection.

● Do not con ne ct/remove the p lu gs du r in g Lea kag e c ur re nt tes t.
It may cause a reading error.

● Do not use the Tester on the device which has a power
consumption of 2.5 kVA or more.

# CAUTION

● Where DUT ON Check function detects that DUT is off, blinking
OFF?appea rs in the LCD a nd the tes t is stopp ed. Turn on

the DUT; then the Tester automatically resumes the test.
Depending on DUTs, even they are turned on, blinkingOFF?
warning sometimes doesnt disappea r and the Tester cannot

continue the test automatically. In such a case, press CL I

switch to continue the test.

● Follow the procedure described in 4.3.1 and undertake the
NULL setting before a measurement.

● The alligator clip must make good contact with the enclosure of
the appliance.

● Do not touch the appliance under test while testing is in
progres s. Since a high volt age of 250V/500V w ill be present
and the user may get an electrical shock.

● Whe n the termina l is open or the resistanc e value exceeds the
measuring range, > (over range display) appears on the
LCD.

5.2 Class ll Test

The Class ll appliances have the indication of DOUBLE IN SULATION
or the  symbol.

Class II test is performed to confirm insulation resistance and

leakage current of the appliance are within the allowable range

specified in the related standard.

To perform Class II test, connect the mains plug of the appliance to

the test socket (1 ) described in clause 2.4.3. Connector and the Rpe

Test Lead terminal (3). To perform RUN leak test,connect Mains

lead MODEL7277 to Mains lead terminal (2).

Use the following setups, depending upon the type of appliance.

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Connect to exposed metal parts but not
rotating parts or heating elements.

Switch ON
the power.

Press CLII switch to
perform Class II test.

RUN leak test:
Connect Tester to outlet

1. Insulation
test

2. Leakage
current test

Between LINE, NEUTR AL

and EARTH.
RUN Leak test:

Connect Tester to outlet.
(Load current is also measured.)

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CL II Test Flow

(1sec .)

Press to halt a
measurement in
progress.

Tester performs next
test when CL II switch
is pressed while a test
is halted with “FAIL”
indication.

1. Insulation resistance test

Insulation resistance test

Stand-by state

Connection Check

DUT ON Check

DUT is ON.

Voltage value is displayed
while the Tester is connected
to an outlet.

CLⅡ

"CL I" is displayed if Rpe terminal is
integrated in the power cord of DUT.

Press to proceed to
the next; continuity test

CLⅡ

is regarded as PASS.

DUT is powered on, or
CL II is pressed.

DUT is OFF.

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Rins≧1 MΩ = PASS Rins<1 MΩ = FAIL

(Red backlight blinks.)

Check screen for RUN leakage test.
Buzzer sounds and blue backlight blinks.

2. Leakage current test

CLⅡ

RUN Leak/ Load current test

ILEAK≦1mA ＝ PASS ILEAK＞1mA = FAIL

(Green backlight blinks.)

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(Red backlight blinks.)

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# CAUTION

● Where DUT ON Check function detects the DUT is off, blinking

OFF?appea rs in the LCD a nd the te st is stopp ed. Turn on

the DUT; then the Tester automatically resumes the test.

Depending on DUTs, even they are turned on, blinking

OFF?warning sometimes doesnt disappear and the Tester

cannot continue the test automatically. In such a case, press

CL ll switch to continue the test.

● When the terminal is open or the resistance value exceeds the
measuring range, > mark (over rang e display) appea rs on
the LCD.

● Do not touch the appliance under test while testing is in
progress. Since a high voltage of 250V or 500V will be present
and the user may get an electrical shock.

# WARNING

● When conducting a leakage test the appliance will
automatically power on and will operate in its normal manner.
It is imperative that the appliance is secured safely before the
test is carried out. Extra care needs to be taken with
appliances which have heating elements and rotating parts.

● F irmly insert t he plug of the applia nce to the socket of the
Tester. Plugs may get hot if Leakage current test is performed
with improper connection.

● Do not connect/remove the plugs during Leakage current
test. It may cause a reading error.

● Do not use the Tester on the device which has a power
consumption of 2.5 kVA or more.

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5.3 Extension Leads Test

This test is for extension leads, and checks for;

● Protective conductor resistance between accessible conductive
parts and connection of protective earth.

● Insulation resistance between L/N and PE.

● Insulation test between L-N

● Polarity check of the Line and Neutral terminal of plug and socket

● Run leakage current test (Run leakage current test on Extension
Leads Test doesnt measure load current.)

Press the Extension switch to
Extension Leads test.

1. Continuity
test

2. Insulation test Between LINE, NEUTRAL and

3. Polarity
check

4. Leakage
current test

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For PE terminal of Extension Leads

EARTH, and between LINE and

NEUTRAL
For LINE and NEUTRAL

RUN Leak test:
Connect Tester to outlet:

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Extension Lead test flow

2. Insulation resistance test 1. Continuity test

(1sec .)

Press to halt a
measurement in

progress.

Tester performs next
test when Extension
switch is pressed
while a test is halted
with “FAIL” indication.

Stand-by

EXTENSION

Press Extension to start a test.
Short press: 1 sec of continuity test
Long press: 5 sec of continuity test

Continuity test

Rpe≦1Ω= PASS Rpe>1Ω=FAIL

(Red backlight blinks.)

Insulation resistance test between:
(1) L&N - E, (2) L-N

L&N-E≧1MΩ = PASS

L&N-E <1MΩ= FAIL

(Red backlight blinks.)

L-N <0.1MΩ = FAIL

(Red backlight blinks.)

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3. Polarity check

Polarity check

Polarity of L and N is correct.
(Pass)

Check screen for RUN leakage test.
Buzzer sounds and blue backlight blinks.

4. Leakage current test

Polarity of L and N is
reversed. (Cross)

(Red backlight blinks.)

EXTENSION

Break in L or N
(Open)

(Red backlight blinks.)

RUN Leak test

ILEAK≦1mA ＝ PASS

(Green backlight blinks.)

ILEAK＞1mA = FAIL

(Red backlight blinks.)

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# CAUTION

● Fo llow the proc edure desc ribed in 4.3 .1 and do N ull setting

before a measurement, but use the short MODEL7276 lead

instead of the MODEL 7129A test lead, by plugging the

MODEL 7276 in to the Ex tension Le ad Adaptor te rminal an d
the AU socket on the front of the unit.

● Wh en the termin al is open or the r esistance va lue exceeds
the measuring range, > (over range display) appe ars on
the LCD.

● Do not touch the device under test while testing is in progress.

Since a high voltage of 250V or 500V will be present, the user

may get an electrical shock.

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5.4 RCD TEST

(1) PRCD test

This test is to test and confirm a PRCD (Portable Residual

Current Device) trips within the rated time by applying specified

current. The Tester incorporates a circuit to test PRCD with
Rated T ripping Current (IΔn) of 10 mA or 30 mA. PRCD trip time
is measure d in sequence: ×1(0°)→×1(180°)→×5(0°)→×5(180°).

After each test, reset the tripped PRCD to proceed to the next

test. PASS result i s given where the PRCD t ripped within t he
rated time through all the tests.

Press the RCD switch

PRCD

TEST

RESET

to perform RCD test.

# CAUTION

● The Tester can test RCD s rated at 230V+10％, -15%. Input
the rated voltage of the RCD to be tested.

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RCD Test Flow

Stand-by

(1sec.)

Press to halt a
measurement in
progress.

RCD

RCD test stand-by screen

30mA

RCD

×1(0°) test

×1( 0°) test result

Reset the tripped RCD.

Long press switches I∆n:
10 mA and 30 mA

RCD

10mA

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×1(180°) test

×1( 180°) test result

Reset the tripped RCD.

×5(0°) test

×5( 0°) test result

Reset the tripped RCD.

×5(180°) test

Test results are all "PASS":

"PASS" is displayed.

(Green backlight blinks.)

If any one of test results is "FAIL":

"FAIL" is displayed.

(Red backlight blinks.)

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● Check the connection if symbol is displayed in the LCD.
Connec ti on m ay be in co r re c t and a te st d oe snt st art even RCD
switch is pressed.

● If " IΔn" setting is greater t han the r ated resi dual cur rent of t he

RCD, the RCD will trip and "no" may be displayed on LCD.

● Special conditions of RCDs of a particular design, for example
S- type, should be taken into consideration.

● ATT (Anti-Trip Technology)

The KEW6205 uses mains voltage across L-N for PRCD testing.
  It enables PRCD testing without tripping the RCD of mains power.

It works wit h the connecti on for "(1) PRCD test " as shown above;
doesn't work with the connection for "(2) PRCD test via socket outlet".

(2) PRCD test via socket outlet
Make connection as the following illustration indicates when

testing a PRCD connected to a socket outlet. For this test, use

MODEL7276 for connection.

PRCD

MODEL7276

Press the RCD switch to
perform RCD test.

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(3) Testing RCD in distribution board
Make connection as the following illustration indicates when

testing an RC D instal led in a dis tribu tion pan el con nected t o a

socket outlet. For this test, use MODEL7276 for connection.

N L

RCD

E

MODEL7276

● If a fault voltage exceeds 50 V while applying a test current to test
a bu ilt - in ty p e RC D, th e LCD show sUf. Hiand the test is halted.

● If a voltage exists between the protective conductor and earth, it

may influence the measurements.

● If a voltage exists between neutral and earth, it may influence the
measurements, therefore, the connection between neutral point

of the distr ibution system a nd earth sh ould be chec ked before
testing.

● The potential fields of other earthing installations may influence

the measurement.

● Re sist anc e of earthed el ec tro des in t he c irc uit und er tes t with a
Probe - auxiliary earthed electrode - should be 200Ω or less.

● Equipment following the RCD, e.g. capacitors or rotating
machinery, may cause a significant lengthening of the measured

trip time.

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6. Memory/ Recall function

6.1 Memory function

Test results on each function can be saved with this function. Press
the Memo ry switc h to save the displ ayed result. (M ax: 99 9). Hold

down the Memory switch for a while to edit the data no., site no. and

device no. Data can be saved according to the following sequence.

MEMORY

Short press*2

POWER

Screen when a test completes.

MEMORY

Data No. and result are displayed.
"MEM" starts blinking.

Blink

MEMORY

Save the measured values.
"MEM" blinks 2 sec. and
then stops blinking and
stays on 2 sec.

Blink

4sec. later

Returns to the
first screen.

[No. edit screen ]
Press Memory switch to increase
the number by 1.
Press RECALL switch to decrease
the number by 1.

Long press*2

PRINT(Enter)

POWER(ESC) *1

POWER(ESC)

POWER(ESC)

PRINT(Enter)

[ Data No. edit screen ]

Blink

PRINT(Enter)

[ Site No. edit screen ]

Blink

PRINT(Enter)

[ Device No. edit screen ]

Blink

※1 All the changes made through edit screens will be canceled
when the Power switch is pressed and the edit screen is closed.
※2 "FULL" appears when the number of stored results reaches to
the max.
Press the POWER (ESC) switch to return to the screen showing a
measured result.

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6.2 Recall function

This function is to recall and display the saved data on LCD. To see

the date, site no. or device no., recall the saved data on the LCD and

then press the RCD switch. The data recalled with this function can
also be pr inted out. Saved data c an be recall ed accordi ng to the
following sequence.

On any screen

POWER(ESC)

MEMORY(▲)

RECALL

Data No. and result are
displayed.
* The latest saved data
is displayed.

RCD

PRINT PRINT

Output to printer

RECALL(▼)

Press the MEMORY switch to move to the data no.
containing data in ascending order.
Press the RECALL switch to move to the data no.
containing data in descending order.

Saved date, site no.
and device no. are
displayed.

When there's no saved data:

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6.3 Delete the saved data

Hold down the Memory and Recal l switch simult a n e o u s l y while the
saved data is di sp l aye d o n t h e LCD by us i ng Recall func tion. (Data
wont be cleared at this momen t.) Select to delete jus t one result or
all results. Data can be deleted according to the following sequence.

On any screen

POWER(ESC)

POWER(ESC)

RECALL

The latest saved data is displayed.

MEMORY

RECALL

Confirmation message: delete one saved result.

PRINT(Enter)

A beep sounds.
The next data no. containing
data is displayed.

POWER(ESC)

Returns to the first screen.

Simultaneous

press

MEMORY(▲)

RECALL(▼)

POWER(ESC)

PRINT(Enter)

A beep sounds.

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7. Print function

Test results displayed o n the LCD can b e transf erred to a p rinter by
pressin g the PRINT switch. You can sele ct an interval for p eriodic

testing at printing. The selectable intervals are: 3 months (3M), 6
months (6M), 12 months (12M), 24 months (24M), 60 months (60M),

and Not deter mine d (-- - M). T he defau lt set tin g is6M. The da te for
the next tes ting ba sed on t he sele cted i nter val is al so pri nted on t he
paper. If you select- -- M", the date for the next date will be blank. The
selected interval is saved in the internal memory and wont be cleared
even after the KEW6205 Tester is powered off.Use the optional printer
cable MODEL7275 to connect a printer and the instrument. Long
press of the PRINT switch can toggle and change the site no. or
device no. for print.

- Compatible printer: PC42t Plus (Honeywell)

The table below shows the communication specs. (RS-232C)

Baud rate 9600bps
Parity Non
Stop bit 1-bit
Data length 8-bit
Handshake Xon/Xoff

Printer

MODEL7275

Print example

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The printe r setup will be e nabled by inse rting a nd uploadin g from a
USB storag e device. If you do not have the s upplied USB stora ge

device (containing printer configuration files), you can manually setup

the printer by following the steps below.

To use a PC42t Plus (Honeywell) with KEW6205, settings of PC42t

Plus need to be c hanged. Ple ase conne ct your PC and P C42t Plus
with a USB cable and follow the instructions below.

* For further detail, please refer to the manual supplied with the printer.

1. Printer Settings > Communications > Serial > COM1 > Baud Rate

> 9600.

2. Printer Settings > Communications > Serial > COM1 > Flow

Control > Hardware > Enable.

3. Printer Settings > System Settings > General > Command

Language > "ZSim".

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Data can be printed out according to the following sequence.

Screen showing the measured/ recalled result

PRINT

Short press*1

POWER(ESC)

PRINT

[ Site No. edit screen ]

Blink

PRINT(Enter

Blink

PRINT(Enter)

The displayed device
no. stops blinking.

Long press

[Site No./ Device No. edit screen ]
Press MEMORY switch to increase the
number by 1.
Press RECALL switch to decrease the
number by 1.

)

Testing interval:

Six intervals are available: 3M/ 6M/ 12M/

24M/ 60M/ --M. Press the RECALL key (▼)

to toggle and select a desired interval.

Returns to the first screen.

Data output to printer

*1 On a recalled result screen, long-press action doesn’t work.

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8. USB communication

This instrument has USB c ommunication to transfer the internal
data to a PC. Dat a can be edi ted by using the s pecial ap plicat ion
KEW Repo rt. Use the o pti on al U SB cable MOD E L8 26 3 to c o nn ec t
the instrument and a PC. The table below shows the USB
communication specs.

Help and information on how to install KEW Report, please see the

instruc tio n manua l suppl ied w ith MO DEL 826 3 -U SB (optio nal ite m)
or HELP in the KEW Report.

Communication method USB Ver1.1
USB ID No. Vender ID:12EC(Hex)

Product ID:6205(Hex)
Serial no.: 0 + 7-digit number

Communication speed 12 Mbps

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9. Clock mode

A long pres s of backli ght switch on a ny screen sh ows the cur rent

time. To adjust the time, press the PRINT switch while the time is

being displayed.
The time can be adjusted according to the following sequence.

On any screen

LIGHT

POWER(ESC)

[Show the current date and time]

Long press

PRINT(ENTER)

POWER(ESC)

PRINT(ENTER)
POWER(ESC)

PRINT(ENTER)
POWER(ESC)

PRINT(ENTER)

[Edit mode - Date]

Blink Blink

RCD

[Edit mode - Month]

Blink Blink

RCD

[Edit mode - Year] [Edit mode - Hour]

RCD

Blink

Blink

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RCD

[Edit mode - Minute]

Blink

Blink

RCD

Blink

Blink

PRINT(ENTER)
POWER(ESC)

PRINT(ENTER)
POWER(ESC)

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10. Backlight

Press the backlight switch to turn on the backlight. Press the switch
again to tur n off the backlight. The ba c k l i g ht au to m at i cally turns off
if there is no activity for about 2 min.

11. Battery / Fuse replacement

# DANGER

Never open th e Batter y cover duri ng a measurem ent. Dispo se

the used batteries according to the rules, which is defined by

each community.

# WARNING

To avoid possible electric shock, remove test leads before

opening the battery cover. After replacing batteries, be sure to

tighten up the screws for battery cover.

# CAUTION
Do not mix new and old batteries. Install batteries in correct
polarity as marked inside the battery compartment.

11.1 Battery Replacement

(1) Disconnect the test probe from the Tester.
(2) Open the battery cover by unscrewing the captive screw to

reveal battery compartment.
(3) Always replace all six batteries with new ones at the same time.
Six size A A alkaline batteries (LR6)
(4) Screw the battery cover back on before using the Tester.

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11.2 Fuse Replacement

(1) Disconnect the test probe from the Tester.
(2) Unscrew the captive and open the battery compartment cover to

replace the fuse.
Fuse type: 10A/250V(F)
Fast acting type ceramic fuse Φ 5 x 20mm.

(3) Screw the battery cover back on
before using the Tester.

­+

Fuse

+

­+

-

12. Shoulder strap attachment

(1) Turn the knob counterclockwise until it stops. Then the knob

comes out.

Knob

(2) Attach the buckle of the shoulder strap and slide until it clicks.

Slide until it clicks.

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(3) Pass the strap belt down through the buckle from the top, and

up. Adjust the strap for length and secure.

13. Maintenance

Use a very s lightly d amp clot h for cle aning the Tester. Do not use
abrasives or solvents.

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