LKZ-720 OPERATING MANUAL version 1.02 3
CONTENTS
1
SAFETY ....................................................................................................................5
2
DESCRIPTION OF THE SYSTEM .......................................................................6
2.1
T
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
3
PRINCIPLE OF SYSTEM OPERATION ...........................................................15
3.1
T
RANSMITTER
LKN-720.......................................................................................15
3.2
R
ECEIVER
............................................................................................................15
3.3
S
YNCHRONIZATION OF THE TRANSMITTER WITH THE RECEIVER
...............................15
3.4
M
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
4
OPERATION..........................................................................................................22
4.1
R
EPLACING THE POWER SUPPLY
...........................................................................22
4.1.1
Receiver .......................................................................................................22
4.1.2
Transmitter ..................................................................................................22
4.2
E
NERGY
-
SAVING FUNCTION
:
AUTO-OFF.............................................................24
4.2.1
Transmitter ..................................................................................................24
4.2.2
Receiver .......................................................................................................25
4.3
S
ETTING AUDIO PATH GAIN
...................................................................................25
4.4
S
ETTING THE TRANSMITTER CODE
.........................................................................27
5
MEASUREMENTS................................................................................................28
5.1
D
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
L
OCATING BREAKS IN CABLES
...............................................................................38
5.3
L
OCATING SHORT
-
CIRCUITS IN MULTICORE CABLES
. ..............................................38