Sonel LKZ-720 Operation Manual
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Sonel LKZ-720 Operation Manual

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  • Page 3 OPERATING MANUAL WIRE TRACER LKZ-720 SONEL S.A. ul. Wokulskiego 11 58-100 Świdnica, Poland Version 1.02 07.11.2017...
  • Page 4 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.

  • Page 5: Table Of Contents

    WALLS AND FLOORS 5.1.1 Live cables ....................28 5.1.2 Conductors without voltage ................. 34 5.1.3 Voltage-current mode UI ................36 ................38 OCATING BREAKS IN CABLES ..........38 OCATING SHORT CIRCUITS IN MULTICORE CABLES LKZ-720 OPERATING MANUAL version 1.02...
  • Page 6 ESTORING FIRMWARE VERSION CLEANING AND MAINTENANCE ..............65 STORAGE ......................65 DISMANTLING AND DISPOSAL ..............65 TECHNICAL SPECIFICATIONS ............... 66 ACCESSORIES ...................... 67 12.1 ..................67 TANDARD EQUIPMENT 12.2 ..................67 PTIONAL ACCESSORIES MANUFACTURER ....................67 LKZ-720 OPERATING MANUAL version 1.02...

  • Page 7: Safety

    • 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.

  • Page 8: Description Of The System

    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.

  • Page 9: Transmitter Lkn-720

    Force switching the power supply OFF (approx. 10 s). Switching LCD ON and selecting its backlight brightness. Decreasing the level of the transmitted signal. Navigating in Menu. Two-colour LED indicator: Green: correct signal transmission, Red: incorrect or missing signal transmission. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 10: Lcd Display

    Strength of the transmitted signal. Mode of the transmitted signal. Voltage present on tested object. Menu mnemonics. Code of the transmitted signal. Automatic mode enabled. The meter is ready for work Menu of transmitter settings LKZ-720 OPERATING MANUAL version 1.02...

  • Page 11: Operation

    Measurement mode Voltage mode of the transmitter. Traced object is an open circuit. No voltage in the circuit. Use the UP DOWN buttons to set the level of the transmitted signal. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 12 Subsequent presses increase the brightness of the display twice and then turn off the backlight. The backlight automatically turns off, after 30 seconds when keyboard is not used, to save power. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 13: Lko-720 Receiver

    Increasing the sound signal level. Receiver settings. Flashlight. Switching ON and selecting the brightness. FLASHLIGHT. Hold down the button of maximum brightness mode. SOCKET 1 Headphones socket. SOCKET 2 USB slot. SOCKET 3 Socket for accessories. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 14: Display

    The level of the transmitter Received signal quality. signal. Operation mode of the trans- Signal detection using the built-in mitter. magnetic field antenna Status batter- Signal detection using the built-in ies/rechargeable batteries in electric field antenna the transmitter. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 15: Operation

    - not in perpendicular . This facilitates locating conductors and ca- bles installed in the ground. c) Operating mode Detection of the electric field of traced signal. A signal from a synchronized transmitter is required. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 16 2.2.3.9 Turning the flashlight ON and OFF Turn the flashlight ON by pressing FLASHLIGHT button. Pressing sequentially the button you may change the brightness of the flashlight. By holding down the flashlight button you may acti- vate its maximum brightness. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 17: Principle Of System Operation

    3 Principle of system operation LKZ-720 set consists of two devices: LKN transmitter and LKO receiver. The transmitter connect- ed to the traced circuit forces respective field around the circumference of the circuit: magnetic field(current mode) or electrical field (voltage mode).
  • Page 18 Information about the operational status of the transmitter may be obtained in magnetic mode (3D) and electric mode (uAnt). LKZ-720 OPERATING MANUAL version 1.02...
  • Page 19 Err message indicates errors in the radio communi- cation between devices due to external interference. Fail message indicates insufficient signal strength for the synchronization, e.g. when the receiver is not placed near the transmitter. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 20: Modes Of System Operation

    3.4.2 Voltage mode U Operation in voltage mode "U" is used for cables without voltage, when it is impossible to create a closed circuit (e.g. break in the conductor). Fig. 8 Diagram of the voltage mode. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 21: Voltage-Current Mode Ui

    3.4.4 Mode of detecting P3 phase LKZ-720 may operate in P3 mode, which is called "phase" mode. It involves the transmitter set in mode P3, which is connected to a live circuit - between the phase conductor L and a neutral conduc- tor N or PE grounding.

  • Page 22: Power Mode - Pr

    3.4.5 Power mode - Pr LKZ-720 may operate in "Pr" mode, which is called "Power" mode. It involves the transmitter set in "Pr" mode and connected to the closed circuit without voltage. Fig. 11 Diagram of the power mode. In in the circuit, the transmitter forces the current flow limited by circuit impedance. The received signal is proportional to the current flow, which translates into a significant increase in the object de- tection range.

  • Page 23: Clamp Mode - Cl

    If a conductor with 230V AC of 50Hz runs near a con- ductive tube, a voltage with frequency of 50Hz may be induced in the pipe causing false results. Fig. 14 Diagram of detecting 50Hz/60Hz electric field. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 24: Operation

    1.5V per cell. Replacing batteries/rechargeable batteries must be performed in the device not connected to any object. Due to the high energy consumption in some transmission modes, it is recommended to use re- chargeable batteries. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 25 (four M3 screws M3 with cross head). Replace the batteries or rechargeable batteries. Close the lid. Turn the transmitter ON. select type of applied energy source Confirm. CAUTION! Have the meter serviced in case of battery leakage inside the compartment. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 26: Energy-Saving Function: Auto-Off

    - no button was pressed. The maximum auto-off time is 300 minutes in 10 minute- steps. The procedure for setting auto-off time in the transmitter. Operation Screen / Comments Turn the transmitter ON. Press and hold. select settings. Approve select Confirm. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 27: Receiver

    For each audio path available in the menu, an additional separate gain control is available for the buzzer and headphones. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 28 Setting "0"- no sound signal. set the gain of the selected path Setting "20"- maximum gain. Saving gain values and moving to the next parameter Single press save the values and exit the menu. press and hold LKZ-720 OPERATING MANUAL version 1.02...

  • Page 29: Setting The Transmitter Code

    The procedure for setting code of the transmitter. Operation Screen / Comments Turn the transmitter ON. Press and hold. select settings Approve select menu of code selection Confirm. set the required code. Confirm. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 30: Measurements

    Fig. 17 Examples of connecting the transmitter to the electrical system. If you connect the transmitter according to Fig. 17 a) for conductors with current flow to and from the transmitter situated close together, the magnetic field generated in the two conductors as a result LKZ-720 OPERATING MANUAL version 1.02...
  • Page 31 Fig. 18 Vectors of the magnetic field in two parallel conductors. The procedure for locating conductors or cable lines in live systems: Operation Screen / Comments Transmitter: Turn the transmitter ON. Press and hold until the screen with selection menu of transmission modes is displayed. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 32 Locate the cable as indicated on the receiver screen. Description of the individual screens is presented in the section below. Move the head of the receiver along the Fig. 19 Fig. 20 traced line, following the maximum signal strength. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 33 L of the transmitter, to L of the transmitter, to the left. the left. Conductor above the The cable in front of head of the receiver. the head of the receiver. Fig. 19 C LKZ-720 OPERATING MANUAL version 1.02...
  • Page 34 "tail" - means under the of the receiver towards receiver. the operator. The cable on the right Conductor on the right side of the head of the side of the head of the Fig. 20 C receiver. receiver. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 35 Fig. 22 Width of the indicator on the bar graph. The width of the indicator on the bar graph represents the deviation of the receiver from the plane parallel or perpendicular to the analysed wire / cable. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 36: Conductors Without Voltage

    Connect the second socket to the traced conductor in the socket outlet, Example Fig. 23 switch, etc. Flashing LED: LKZ-720 OPERATING MANUAL version 1.02...
  • Page 37 Turn the receiver ON. Pressing the key, set voltage mode uAnt. Move the head of the receiver along the traced line, following the maximum signal strength. Fig. 23 Locating conductors disconnected from the network in the wall. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 38: Voltage-Current Mode Ui

    Fig. 24 potential in a different socket of the tested circuit. Flashing LED: green - correctly selected mode. Start the transmission. red – incorrectly selected mode. Receiver: Turn the receiver ON. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 39 5.1.1. Move the head of the receiver along the traced line, following the maximum Fig. 24 (and Fig. 19 Fig. 20) signal strength. Fig. 24 Locating electrical system using a close loop. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 40: Locating Breaks In Cables

    Fig. 26. Connect the transmitter to the shorted conductors in "UI" mode, forcing current signal in the tested cores. Move the receiver in "3D" mode along the tested wire - location of wire fault will be the last point with the high value of the received signal. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 41 The procedure for setting the system for locating shorted cores in a conductor. Operation Screen / Comments Transmitter: Turn the transmitter ON. Press and hold until the screen with settings is displayed. select UI mode. Confirm. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 42 – incorrectly selected mode. Receiver: Turn the receiver ON. Press the button and set current mode - IAnt. Move the head of the receiver along the Fig. 26 traced line, following the maximum signal strength. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 43: Identifying Fuses In A Switchboard

    5.4 Identifying fuses in a switchboard LKZ-720 system may be used for identifying safety devices in a circuit. In the analysed circuit a current signal is forced, for which a protection is searched in the switchboard. The transmitter must be connected to the circuit in a manner enabling the current flow in the circuit. Connection example Fig.
  • Page 44 * - transmission level 80mA and 160mA at network voltage of 230V AC cause rapid heating of the transmitter circuits and its blockade lasting until they cool down. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 45: Routing A Cable Line - Power Mode "Pr

    Sonel S.A. Fig. 28 Locating cables in power mode with shorted cores of the cable. Fig. 29 Locating cables in Power mode using an external cable. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 46 Power mode - Pr. Flashing LED: green - correctly selected mode. Start the transmission. red – incorrectly selected mode. Receiver: Turn the receiver ON. Press the button and set current mode - CAbL. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 47 In such case, press START button in order to acknowledge the electronic fuse and decrease the transmission level or use "UI" mode for routing the cable lines, as it has the forced current transmis- sion, which is fixed and controlled by signal level. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 48: Locating Non-Conductive Pipes

    With an additional conductive wire, the system may be used for routing and locating non- conductive pipes. The transmitter should be connected to the wire in a manner enabling the use of current signal in "UI" mode. See example in Fig. 30. Fig. 30 Tracing electrically non-conductive hydraulic system. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 49: Phase Identification

    Connect the second banana socket of the Determining which opening of the wall "N" transmitter to the second opening of outlet is phase may be carried out using the "N" wall outlet. NEON mode of the receiver. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 50 Available marking of phases: L1, L2, L3. set the desired reference phase of the connected circuit. Receiver: Turn the receiver ON. Set P3 mode. Place the receiver close to the tested Fig. 31 circuit to determine its phase. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 51: Neon" Mode

    Fig. 32 Detecting electric field. Note: Metal, ungrounded elements located in the alternating electric field cause inaccurate readings of the detected electric field. Procedure of activating "NEON" mode. Operation Screen Receiver: Turn the receiver ON. Set Neon mode. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 52: Multi-Transmitter Operation

    Transmitter 1: Turn the transmitter ON. Connect the banana socket to the end of Fig. 33 tested circuit. Connect the second banana socket of the Fig. 33 transmitter to grounding. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 53 SET mode. Confirm. select CODE. Confirm. select the code signal for the transmitter A, B, C or D. Confirm. Press and hold until the screen with settings is displayed. select U mode. Confirm. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 54: Multi-Transmitter Operation - Identifying Cores In A Multicore Cable

    Increasing the selectivity may be achieved by using a non-contact probe or by unambiguous identification of cores by C-8 measurement clamps. Fig. 34 Identifying cores in the cable – mode I. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 55 Connect of the banana sockets to the end Fig. 35 of tested circuit. Connect the second banana socket of the Fig. 35 transmitter to grounding. Press and hold until the screen with settings is displayed. select SET mode. Confirm. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 56 Transmitter X (X = 2E4): Repeat steps 1 - 14. Receiver: Turn the receiver ON. Pressing the key, set voltage mode uAnt. Move receiver closer to the individual Fig. 35 wires to identify them by the displayed code. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 57 Fig. 34 the transmitter to grounding. Press and hold until the screen with settings is displayed. select SET mode. Confirm. select CODE. Confirm. select the code signal for the transmitter A, B, C or D. Confirm. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 58 Repeat steps 1 - 14. Receiver: Turn the receiver ON. Press the button and set current mode - IAnt. Move receiver closer to the individual Fig. 34 wires to identify them by the displayed code. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 59: Accessories

    The receiver in 3D mode, uses respective symbols to indicate the same direction. The procedure for setting the transmitter with transmission clamps: Operation Screen Transmitter: Turn the transmitter ON. Connect "L" banana socket to "H" socket Fig. 36 LKZ-720 OPERATING MANUAL version 1.02...
  • Page 60 Receiver - current mode M / 3D: Turn the receiver ON. Press the button and set current mode - IAnt. Direct the head of the receiver towards the highest value of the signal level to locate the conductor. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 61: Reception Clamps

    'clamps' icon. Reception Direction accord- clamps. ing to the arrow of the probe. L socket of the transmitter. Fig. 37 Reception clamps – current forcing in detected circuit. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 62: Contact Probe

    "U", while the other cores are grounded. The higher value displayed in the receiver uniquely identifies the core. Fig. 39 Contact probe must be used with a blade probe or a crocodile clip. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 63: Non-Contact Probe

    "L" clip of the transmitter plugged in the tested circuit Fig. 41. Positioning the probe in the direction of the transmitted signal is indicated on the receiver screen by "OK" symbol. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 64: Headphones

    The headphones are used in places where user has difficulties to receive buzzer signals and messages concerning the tested or identified objects. Connected headphones are automatically detected by the receiver, which is indicated on the re- ceiver display. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 65: Software Update

    7 Software update Current versions of the software for the transmitter and receiver are available at www.sonel.pl. Before updating the device software, prepare USB cable to connect the receiver to a PC. The cable should be equipped with a mini-A USB plug.
  • Page 66 Damage detected in firmware of LKO device. It is necessary to update software again. Message displayed during the auto-repair of the applications installed in LKN transmitter. Note: Restoring the operating software. Do not turn off the device. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 67: Restoring Firmware Version 1.00

    Worn-out electronic equipment should be sent to a collection point in accordance with the law of waste electrical and electronic equipment or local regulations. Before the equipment is sent to a collection point, do not dismantle any elements. Observe local regulations concerning disposal packages used batteries/rechargeable batteries. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 68: Technical Specifications

    ..................EN 61326-1:2013 and EN 61326-2-2:2013 Note: The transmitter may produce interference with values exceeding allow- able limits defined in EN 61326-1 and cause interference in other devic- es when connected to the mains. LKZ-720 OPERATING MANUAL version 1.02...

  • Page 69: Accessories

    SONEL S.A. ul. Wokulskiego 11 58-100 Świdnica Poland tel. +48 74 858 38 60 fax +48 74 858 38 09 E-mail: export@sonel.pl Web page: www.sonel.pl Note: Service repairs must be performed only by the manufacturer. LKZ-720 OPERATING MANUAL version 1.02...
  • Page 70 LKZ-720 OPERATING MANUAL version 1.02...

This manual is also suitable for:

Lkg-720Lkn-720

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