Sonel LKZ-720 Manuale utente

OPERATING MANUAL

WIRE TRACER

LKZ-720

SONEL S.A.

ul. Wokulskiego 11

58-100 Świdnica, Poland

Version 1.02 07.11.2017

LKZ-720 OPERATING MANUAL version 1.02

LKZ-720 meter is a modern, easy and safe measuring device. Please acquaint yourself with this

manual in order to avoid measuring errors and prevent possible problems in operation of the meter.

Movie materials placed on www.sonel.pl/lkz720en make the use of particular functionalities easier to

understand.

LKZ-720 OPERATING MANUAL version 1.02 3

CONTENTS

SAFETY ....................................................................................................................5

DESCRIPTION OF THE SYSTEM .......................................................................6

2.1

RANSMITTER

LKN-720.........................................................................................7

2.1.1

Front panel ....................................................................................................7

2.1.2

LCD Display ..................................................................................................8

2.1.3

Operation.......................................................................................................9

2.2

LKO-720

RECEIVER

.............................................................................................11

2.2.1

Front panel ..................................................................................................11

2.2.2

Display.........................................................................................................12

2.2.3

Operation.....................................................................................................13

PRINCIPLE OF SYSTEM OPERATION ...........................................................15

3.1

RANSMITTER

LKN-720.......................................................................................15

3.2

ECEIVER

............................................................................................................15

3.3

YNCHRONIZATION OF THE TRANSMITTER WITH THE RECEIVER

...............................15

3.4

ODES OF SYSTEM OPERATION

.............................................................................18

3.4.1

Current mode I.............................................................................................18

3.4.2

Voltage mode U ...........................................................................................18

3.4.3

Voltage-current mode UI.............................................................................19

3.4.4

Mode of detecting P3 phase.........................................................................19

3.4.5

Power mode - Pr..........................................................................................20

3.4.6

The mode of detecting safety devices - FUSE ..............................................20

3.4.7

Clamp mode - CL.........................................................................................21

3.4.8

Mode for detecting 50Hz/60Hz electric field - NEON .................................21

OPERATION..........................................................................................................22

4.1

EPLACING THE POWER SUPPLY

...........................................................................22

4.1.1

Receiver .......................................................................................................22

4.1.2

Transmitter ..................................................................................................22

4.2

NERGY

SAVING FUNCTION

AUTO-OFF.............................................................24

4.2.1

Transmitter ..................................................................................................24

4.2.2

Receiver .......................................................................................................25

4.3

ETTING AUDIO PATH GAIN

...................................................................................25

4.4

ETTING THE TRANSMITTER CODE

.........................................................................27

MEASUREMENTS................................................................................................28

5.1

ETECTING CABLES IN CEILINGS

WALLS AND FLOORS

,...........................................28

5.1.1

Live cables ...................................................................................................28

5.1.2

Conductors without voltage.........................................................................34

5.1.3

Voltage-current mode UI.............................................................................36

5.2

OCATING BREAKS IN CABLES

...............................................................................38

5.3

OCATING SHORT

CIRCUITS IN MULTICORE CABLES

. ..............................................38

LKZ-720 OPERATING MANUAL version 1.02

5.4

DENTIFYING FUSES IN A SWITCHBOARD

................................................................41

5.5

OUTING A CABLE LINE

–

OWER MODE

" .......................................................43

5.6

OCATING NON

CONDUCTIVE PIPES

......................................................................46

5.7

HASE IDENTIFICATION

........................................................................................47

5.8

EON

MODE

.....................................................................................................49

5.9

ULTI

TRANSMITTER OPERATION

.........................................................................50

5.9.1

Multi-transmitter operation – locating breaks.............................................50

5.9.2

Multi-transmitter operation – identifying cores in a multicore cable..........52

ACCESSORIES......................................................................................................57

6.1

RANSMISSION CLAMPS

.........................................................................................57

6.2

ECEPTION CLAMPS

. ............................................................................................59

6.3

ONTACT PROBE

..................................................................................................60

6.4

CONTACT PROBE

..........................................................................................61

6.5

EADPHONES

......................................................................................................62

SOFTWARE UPDATE..........................................................................................63

7.1

ESTORING FIRMWARE VERSION

1.00....................................................................65

CLEANING AND MAINTENANCE ...................................................................65

STORAGE ..............................................................................................................65

DISMANTLING AND DISPOSAL ......................................................................65

TECHNICAL SPECIFICATIONS .......................................................................66

ACCESSORIES......................................................................................................67

12.1

TANDARD EQUIPMENT

........................................................................................67

12.2

PTIONAL ACCESSORIES

.......................................................................................67

MANUFACTURER ...............................................................................................67

LKZ-720 OPERATING MANUAL version 1.02 5

1 Safety

In order to provide conditions for correct operation and the correctness of the obtained results, the

following recommendations must be observed:

•

Before you proceed to operate the meter, acquaint yourself thoroughly with the present manual

and observe the safety regulations and specifications provided by the producer.

•Any application that differs from those specified in the present manual may result in a damage to

the device and constitute a source of danger for the user.

•LKZ-720 sets must be operated only by appropriately qualified personnel with relevant certificates

authorising the personnel to perform works on electric systems. Unauthorized use of the set may

result in its damage and may be a source of serious hazard to the user.

•Using this manual does not exclude the need to comply with occupational health and safety regu-

lations and with other relevant fire regulations required during the performance of a particular type

of work. Before starting the work with the device in special environments, e.g. potentially fire-

risk/explosive environment, it is necessary to consult it with the person responsible for health and

safety.

•It is unacceptable to operate the device when:

⇒it is damaged and completely or partially out of order,

⇒its cords and cables have damaged insulation,

⇒it has been stored for an excessive period of time in disadvantageous conditions (e.g. exces-

sive humidity).If the meter has been transferred from a cool to a warm environment with a high

level of relative humidity, do not start measurements until the meter is warmed up to the am-

bient temperature (approximately 30 minutes).

•Do not leave unconnected conductor, while the other is connected to the tested network.

•Do not leave unattended device connected to the tested circuit.

•Do not operate the transmitter with open or incorrectly closed battery compartment and do not

power it from other sources than those specified in this manual.

•Repairs may be performed only by an authorised service point.

CAUTION!

The transmitter of the set is designed to operate at a nominal voltage of 230/400 V.

Connecting the device to a voltage higher than 500 V AC may cause its damage.

WARNING:

Disconnecting the protective conductor is a life hazard for the staff tracing the wires

and also for bystanders. Wherever possible you must first disconnect the supply volt-

age and the phase cable(s). Be particularly careful when removing the protective con-

ductor or the grounding of neutral wire from the system, which must be energized. En-

sure that there are no bystanders in the danger area. When the tracing is completed,

the connection of the protective conductor or grounding of the neutral conductor

MUST be reconnected.

Note:

Due to continuous development of the tracer’s software, the actual appearance of the

display, in case of some of the functions, may slightly differ from the display presented

in this operating manual.

LKZ-720 OPERATING MANUAL version 1.02

2 Description of the system

LKZ-720 wire tracer is designed primarily for detecting conductors in buildings in different envi-

ronments (concrete, brick, wood). It may be also used for tracing cables, however, system capabilities

are limited only to the routing of the cable. The device may detect cables and wires, both live (without

the need to disconnect any devices from the tested network) and without voltage.

LKZ-720 wire tracer has the ability to detect 50/60 Hz electric field (non-contact voltage tester),

identification of the system safety devices such as circuit breakers, differential switches. An additional

feature of LKZ-720 is the ability to recognize and identify the phase voltage.

Key features of the tracer:

•detecting cables in ceilings, walls and floors,

•locating breaks in cables, switches and fuses,

•locating routes of shortened circuits,

•locating defects in grounding conductors of three-phase systems,

•identification of cables in the system,

•identification of phase voltage in multiphase circuits,

•identifying overcurrent circuit breakers, differential switches, system circuit breakers,

•tracing conductive water or heating pipes,

•tracing cable routes (in a limited extent).

The system of LKZ-720 wire tracer consists of LKO-720 receiver and at least one LKN-720

transmitter.

LKZ-720 OPERATING MANUAL version 1.02 7

2.1 Transmitter LKN-720

2.1.1 Front panel

Fig. 1 Front panel.

No. Designation Function Description

1 N 

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1 2

LKZ-720 OPERATING MANUAL version 1.02

2.1.2 LCD Display

Fig. 2 Transmitter - LCD display.

No. Figure Function Description

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