Earth Resistance Tester Manual

7/23/2019 Earth Resistance Tester Manual

http://slidepdf.com/reader/full/earth-resistance-tester-manual 1/13

DIGITAL

EARTH

RESISTANCE

TESTER

INSTRUCTION

MANUAL



NDEX

INTRODUCTION

AFETY

NOTES

FEATURES

SPECIFICATIONS

MEASURING

METHODS

MAINTENANCE

Page

I

1

2

3-4

5-7

8-9

l.INTRODUCTION

This

meter has

been

d

to

IEC

Publication

348

Electronic

Measuring

IEC/EN

61010-1

and

o

Follow

allwarnings

to

2.SAFETY

NOTES

.

Read

the

following

s

before

attempting

to

A

Warning

Risk

o

A

fi:iii:n

Rerer



3.FEATURES

.

Capable

of

measuring

earth

voltage.

.

2mAmeasuring

cu

rrent

perm

its

earth

resistance

tests

with tripping

earth

leakage

current

breakers

in

the

circuit

under

test.

.

ln

addition

to

facilitating

for precision

measurement,

test leads

for simplified

two

wire

measuring

system

also

are

supplied

as

standard

Accessories.

.

0Q

adjustment.

o

Data

hold

function.

o

Battery

operated.

o

Battery life indicator.

.

Designed

to meet

IEC/EN

61010-1

safety

standard.

4.SPECIFICATION

.

Measurement

Syste

Earth

resistance

by

820Hz,2mA

approx.

o

Earth resistance

:

Range

|

20120012KO

Resolution

:

0-19.99o

(0.01o)

0-199.9f)

(0.1o)

0-1eeeo

(1o)

o

Earth voltage

:

0-20

.

Accuracy

:

Earth resistance

i

t(

is

Earth

voltage

:

t(1%

.

Display

:

LCD

3/,

digit(2000

c

.

Low

battery indicatio

"

ft

"

symbol appea

o

Data hold

indication

"

lHolpl

"

symbol appe

o

Over range

indicatio

'1 " (MSD).

.

Safety standard

:

lECi EN

61010-1, lns

2



Power

source

:

1.5V

(ROP)

x 8

pieces

or

equivalent.

Dimensions

:

210(L)

x

210(W)

x 100(D)

mm.

Weight:

Approx.

13959 (battery included).

Accessories

:

Test

leads(red-1

5m,

yellow-1

0m,

green-Sm).

Auxiliary

earth

spikes.

Simplified

measurement

probe.

lnstruction manual.

5.MEASURING ME

BEFORE PROCEEDIN

SAFETY

NOTES ON P

1. ln

proceeding

with m

appears

on

the displ

2.

Short

the

tips

of

the

control to set

the

read

3. Rotary

to

function swi

position

and

press

to

displayed

on

the

LC

than

10V, it may

res

measurement. Accu

measurement

may

n

4.

Precision

earth

resis

(1)

Connect

green,

instrument

termi

earth spikes

P1,

STRAIGHT LlNE

(2)

Rotary

the

functi

then

press

the

p

read ing.

4

E

S



Simplified

earth resistance measurement

method

(1)

This method

is

recommended

where

an

earth

resistance higher

than

10Q is

measured

or

where it is not

possible

to drive auxiliary earth

spikes. An approximate value of earth

resistance can

be

obtained

by

the

two wire

system where

is

shown

in Fig.

2.

(2)

Rotary to function switch to

"EARTH

VOLTAGE.

position

and

press

to test. Make certain that

earth voltage

is

less than

10V.

(3)

First

rotary the function

switch

to

"200f)"

position

and

press

to test, read earth resistance.

lf the display shows

"1"

(MSD),

switch to

'2Kf)'

position

and

read earth resistance.

(a)

The reading obtained

(Rx)

is

an approximate

earth resistance value. There

is no need

for

external

shorting as P and C terminals are

shorted by using the test leads specified

for

the

Simplified measurement.

(5)

Rx

=

Re

-re

Rx

=

True Earth R

Re

=

lndicated

Va

re

=

Earth

Resista

(6)

Since measuring

earth leakage

bre

even

if

the earth s

supply with

an EL

*

Follow

the

proper

c

LED(red)

indicator

w

current

circulation

Ea

rth

Electrode

under tesl

Fig.2

-6-





ANA

EARTH

RESIS

I

.

I

L20

INSTRUCTIO



INDEX

INTRODUCTION

SAFETY NOTES

FEATURES

SPECIFICATIONS

MEASURING

METHODS

MAINTENANCE

Page

10

10

11

12

13-15

16-17

l.INTRODUCTION

This meter has

been

d

accordance to the CE

Electronic

Measuring A

and other safety stand

ensure safe operation.

2.SAFETY NOTES

.

Read the following s

before

attempting

to

a

Meter

is

protect

insulation

or

rei

/\

Warnlng Risk

A

fi:iji:n

Refer



.

Capable of

measuring

earth voltage.

.

2mA

measuring

current

permits

earth resistance

tests with tripping

earth leakage current

breakers

ln

the

circuit

under

test.

o

ln

addition to facilitating for

precision

measurement, test leads for

simplified two-wire

measuring system

also

are

supplied

as

standard

accessories.

o

Battery operated.

.

Battery life indicator.

.

Designed to meet

IEC

/

EN

61 01

0-1

safety

standard.

4.S

PEC IFICATIONS

.

Measurement

System

Earth

resistance

by

c

82OHz,2mA approx.

Earth voltage

by

rect

40-500H2

.

Ranges

and

Accurac

Earth resistance

121 1

Earth voltage

0-30VA

.

Safety standard

:

IEC/EN

61010-1,

lns

.

Power

source

:

1.5V

SUM-3(ROP)x

8

o

Dimensions

:

210(L)

.

Weight

:

Approx.

137

.

Accessories

:

Test

leads

(red-15M,

auxiliary earth spikes

probe,

instruction

ma

-11-



5.MEASURING

METHODS

BEFORE

PROCEEDING MEASUREMENT, READ

SAFETY

NOTES

ON PAGE

1

O.

1.

Check

to

see

if the meter

pointer

is

adjusted

exactly

to the mechanical zero

position

of

the O

or

V

scale.

lf the

pointer

is in the zero

position,

turn

the zero adjust screw with a screwdriver.

2. Rotate

the function

switch

to

the

"BATT.

CHECK.

position

and

press

to test. Battery voltage is

sufficient when the meter

pointer

stays in

"OK"

position

of

the

battery check scale.

lf not, replace

with the new

batteries.

3.

Rotate the function switch to

"EARTH

VOLTAGE"

position

and

press

to

test.

Earth voltage will

be

indicated

on the

ACV scale. When the earth voltage

is more than

10V,

it may result in errors in earth

resistance

measurement.

Accurate

earth

resistance

measurement may not

be

made.

4. Precision earth resistance measurement method

:

(1)Connect green, yellow

and red test leads to

lnstrument

terminals

E, P

and C

with

auxiliary

earth spikes P1, C1 inserted into earth

"lN

A

STRAIGHT LlNE". (Fig.

3)

(2)Rotate

the function

switch

to

proper

range,

then

press

the

push-button

to

test

and

take the

reading.

5. Simplified

earth resis

(1)This

method is rec

resistance

higher t

where it is not

poss

earth spikes.

An a

resistance can

be

system

as

shown

i

(2)Rotate

the function

VOLTAGE"

positio

certain that earth

v

(3)First

rotate

the fun

and

press

to

test.

R

meter

pointer

indic

"x100"

position

an

(

)The reading obtain

earth

resistance

v

external

shorting s

shorted

by using

th

simplified

measure

Aux

Ear

Spik

-1

3-



Green

-

Fig.4

(5)Rx=Re-re

Rx

=

True Earth

Resistance

Re

=

lndicated

Value

re

=

Earth Resistance

or Earth Electrode.

(6)Since

the measuring

current

is

as low

as

2mA,

the earth leakage breaker (ELCB)

does

not

trip

even

if

the earth side

of

the

commercial

power

supply with an ELCB

is used.

Press lamp

switch

to

turn

on

the lamp. The

lamp

will automatically

shut off

after

10

seconds.

Follow.the

proper

connection as

shown in Fig.

3.

The LED

(red)

indicatorwill

be lit. This

proves

that

a

correct

current

circulation

is under its

operation.

6.

MAINTENANCE

.

Battery

replacement

When setting

the fun

CHECK"

position

and

stay

in

"OK"

positio

Follows

:

(1)Disconnect

the

te

and

turn

off

the

Po

(2)Use

a

screwdriver

cover

then slide

a

the batteries

and

type

SUM-3(R6P)

(3)Place

back

cover

.

Cleaning

and

storag

-1

5-

Periodically

wipe

the

detergent.

Do

not

us

lf the meter

is

not

to

than

60

days,

remov

separately.



CAT

IV -

ls

for measurements

performed

at the

source

of

.

the low-voltage

installation.

CAT

lll

-

ls for measurements

performed

in

the building

installation.

CAT

ll

-

ls for

measurements

performed

on circuits

directly

connected

to the low-voltage

installation.

CAT

I

-

ls for

measurements

perfonned

on circuits

not

.

directly

connected

to Mains.

Due to our

policy

of constant improvement

and developmenl, we reserue

the right

to change specifications

without notice.

-17-



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& MARINE,

INC.

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Documents

Earth Resistance Tester Manual