Extech Instruments CB20 User Manual Download Page 4 | Manualshive

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Extech Instruments CB20 User Manual Download Page 4

4

CB20-EU-EN-V1.2 5/13

Setting

Maximum

Sensitivity

Before

performing

a

scan,

set

the

unit

for

maximum

sensitivity.

To

maximize

sensitivity:

After

powering

the

unit

ON,

hold

the

unit

away

from

the

circuit

breaker

panel

and

then

press

and

release

the

reset

button

once.

Finding

a

Circuit

Breaker

The

transmitter

injects

a

signal

onto

the

circuit

which

can

be

detected

by

the

receiver.

The

receiver

will

beep

and

the

indicating

LED

will

change

from

red

to

green

when

the

strongest

signal

is

located.

The

receiver

sensitivity

automatically

adjusts

to

minimize

false

identifications.

Please

follow

the

instructions

below

very

carefully

with

regard

to

the

orientation

angle

of

the

sensor

head

to

the

circuit

breaker

area.

Failure

to

follow

these

directions

exactly

could

lead

to

inconclusive

test

results;

also

note

the

accompanying

diagram

for

additional

guidance.

1.

Plug

the

transmitter

into

the

socket

under

test

and

the

“correct”

LEDs

will

turn

on.

2.

Go

to

the

circuit

breaker

panel

or

fuse

box

and

switch

ON

the

receiver.

The

Indicating

LED

on

the

receiver

will

light

red

to

indicate

automatic

scan.

3.

Place

the

sensing

tip

in

contact

with

the

face

of

the

circuit

breaker

or

fuses.

The

sensing

tip

must

be

flat

against

the

circuit

breaker

at

all

times

during

the

test.

Any

tilt

in

the

angle,

in

one

direction

or

another,

will

affect

the

sensor’s

ability

to

pick

up

the

signal.

4.

Slowly

run

the

sensing

tip

along

the

row

of

circuit

breakers.

Maintain

a

constant

angle

to

the

breakers

as

shown.

The

frequency

of

the

beeping

will

increase

to

a

very

rapid

or

continuous

tone

and

the

LED

will

turn

from

red

to

green

when

the

receiver

encounters

the

breaker

with

the

strongest

signal.

Continue

the

scan

through

all

the

breakers.

5.

Repeat

the

scan

of

the

row

of

breakers.

With

each

sweep

the

receiver

will

automatically

adjust

its

sensitivity

and

disregard

weaker

signals.

6.

Continue

scanning

until

the

correct

indication

(rapid

or

continuous

tone

and

green

LED)

is

given

only

when

the

sensing

tip

is

over

one

breaker

or

fuse.

This

is

the

breaker

protecting

the

circuit

that

the

transmitter

is

plugged

into.

7.

Turn

the

selected

circuit

breaker

off

and

the

receiver

will

revert

to

a

red

LED

display.

8.

Return

to

the

tested

socket

and

confirm

that

the

correct

breaker

has

been

selected

by

checking

that

the

LEDs

on

the

transmitter

are

no

longer

ON

(power

is

off).

9.

Press

and

Hold

the

ON/OFF/RESET

button

to

turn

the

Receiver

OFF.

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Summary of Contents for CB20

Page 1: ...USER GUIDE Circuit Breaker Finder Receptacle Tester Model CB20 ...

Page 2: ...ormal use hazardous voltages may be present Double insulation Safety Note Remove the battery if the device is to be stored for longer than 60 days Cautions If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired This product is designed for use by suitably qualified personnel familiar with electrical supply systems Before usin...

Page 3: ...ED is ON and Red 2 The Low Battery LED is OFF If either of these conditions does not exist replace the battery Plug the transmitter into a live socket and move the receiver scanning head over the face of the transmitter The frequency of the beeping should become very rapid or change to a continuous tone The Indicating LED should turn Green when the scanning head is detecting a signal hotspot this ...

Page 4: ...the sensing tip in contact with the face of the circuit breaker or fuses The sensing tip must be flat against the circuit breaker at all times during the test Any tilt in the angle in one direction or another will affect the sensor s ability to pick up the signal 4 Slowly run the sensing tip along the row of circuit breakers Maintain a constant angle to the breakers as shown The frequency of the b...

Page 5: ...of the head to the breaker Test only the same side of each breaker during a test Pay particular attention to this when testing a vertically hung panel which may have neighboring breakers mounted in opposite directions Always reset the receiver away from the distribution board before changing any test condition Alternate Scanning Techniques Due to the differing designs of circuit breakers it may so...

Page 6: ...ceptacle GFCI Test 1 Before using the tester press the TEST button on the installed GFCI receptacle the GFCI should trip If it does not trip do not use the circuit and call a qualified electrician If it does trip press the RESET button on the receptacle 2 Plug the Transmitter Receptacle tester into the outlet Verify that the wiring is correct as described above 3 Press and hold the test button on ...

Page 7: ...ollection points or wherever batteries accumulators are sold Disposal in household trash or refuse is prohibited Disposal Follow the valid legal stipulations in respect of the disposal of the device at the end of its lifecycle Other Battery Safety Reminders Never dispose of batteries in a fire Batteries may explode or leak Never mix battery types Always install new batteries of the same type Pleas...

Page 8: ...at 40ºC 104ºF Storage Humidity 80 Operating Altitude 2000 meters 7000ft maximum Weight Transmitter 91g 3 2oz Receiver 136g 4 8oz Dimensions Transmitter 118 x 60 x 35mm 4 6 x 2 4 x 1 4 Receiver 196 x 55 x 36mm 7 7 x 2 2 x 1 4 Approvals UL CE UL Listed The UL mark does not indicate that this product has been evaluated for the accuracy of its readings Copyright 2013 FLIR Systems Inc All rights reserv...

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