JONARD TOOLS WCT-700 Instruction Manual
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JONARD TOOLS WCT-700 Instruction Manual

Underground wire tracer & circuit finder
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WCT-700 UNDERGROUND
WIRE TRACER & CIRCUIT FINDER
INSTRUCTION MANUAL

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  • Page 1 WCT-700 UNDERGROUND WIRE TRACER & CIRCUIT FINDER INSTRUCTION MANUAL...
  • Page 3 This warranty does not apply to damages caused by accident, negligence, misuse, modification, contamination or improper handling. The dealer shall not be entitled to give any other warranty on behalf of Jonard Tools. If you need warranty service within the warranty period, please contact Jonard Tools directly.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS Overview ........................5 Accessories ........................ 5 III. Safety Information...................... 6 Electrical Symbols ....................6 Safety Instructions and Precautions ..............7 Transmitter Components .................... 9 Transmitter Appearance ..................9 Descriptions of Components ................10 Descriptions of Display ..................11 Receiver Components ....................
  • Page 5 Draw a Circuit Diagram Using the Connection of Test Leads ........ 39 8.10 Track the Circuit Breaker in the System with Illumination Dimmer ......40 External Voltage Measurement and ELV Function (WCT-700) ........ 40 External Voltage Measurement ................40 ELV Function ..................... 42 Technical Specifications ..................

  • Page 6: Overview

    OVERVIEW The WCT-700 Underground Wire Tracer and Circuit Finder can be used to detect the path of low-voltage cables buried underground or inside walls, test and diagnose opens, shorts and other problems occurring at cabling, and detect if the tested cable is energized. The transmitter can display corresponding voltages (voltage of energized cable: ≥...

  • Page 7: Safety Information

    WCT-700 Instruction Manual III. SAFETY INFORMATION 3.1 ELECTRICAL SYMBOLS AC (Alternating Current) DC (Direct Current) Warning High Voltage Double Insulated Grounding Conforms to European Union standards UKCA certification mark Applicable to test and measure the circuit connected with the power distribution CAT III part of building’s low-voltage MAINS installation.

  • Page 8: Safety Instructions And Precautions

    III. SAFETY INFORMATION 3.2 SAFETY INSTRUCTIONS AND PRECAUTIONS WARNING: To avoid electric shock, fire, or personal injury, read through the user manual, • especially the safety information below. After reading the “Safety Information”, keep it and the user manual along with the device in •...
  • Page 9 2. Use only the fuse with designated type and current rating. Do not use wrong or repaired fuses, nor connect the fuse block to prevent fires. NOTE: It is normal that weak sparks may occur periodically when the WCT-700 is used as a voltage device to measure external voltage.

  • Page 10: Transmitter Components

    IV. TRANSMITTER COMPONENTS 4.1 TRANSMITTER APPEARANCE 0. Input/Output Terminal 5. Backlight/Mute Button 1. LCD Screen 6. Level Button 2. ELV Indicator Light 7. Code Button 3. Start/Stop Signal Transmission Button 8. Power Button 4. Up/Down Button 9. Buzzer...

  • Page 11: Descriptions Of Components

    WCT-700 Instruction Manual IV. TRANSMITTER COMPONENTS 4.2 DESCRIPTION OF COMPONENTS Input/Output Terminal: Used to connect with multiple accessories (i.e., AC polarized plug) for signal measurement/output. LCD Screen with backlight ELV Indicator Light: If the voltage of the input port exceeds the specified voltage when the transmitter is powered off, the LED lights up red and its brightness increases as the voltage rises.

  • Page 12: Descriptions Of Display

    IV. TRANSMITTER COMPONENTS 4.3 DESCRIPTIONS OF DISPLAY Component Description The symbol “ ” appears when the input/output port is connected with AC power supply. The symbol “ ” appears when the input/output port is connected with DC power supply. The symbol “ > ” appears when the input/output port is connected with an AC/DC power supply greater than 480V.
  • Page 13 WCT-700 Instruction Manual Component Description When the input/output port is connected with DC power supply, and the red input port is connected with DC positive pole and the black port is connected with negative pole, the symbol “ + ” appears.

  • Page 14: Receiver Components

    RECEIVER COMPONENTS 5.1 RECEIVER APPEARANCE 0. Cable Tracking End/NCV Sensor 5. Power Button 1. LCD Screen 6. Backlight/Mute Button 2. Auto/Manual Button 7. Flashlight Button 3. Up Button 8. NCV Button 4. Down Button 9. Buzzer...

  • Page 15: Options Of Components

    WCT-700 Instruction Manual OPTIONS OF COMPONENTS Cable Tracking End and NCV Detector Sensor LCD screen with backlight Auto/Manual Button (Enabled in Cable Tracking Mode): Short press this button in cable tracking mode to switch between AUTO and MANUAL modes (Default mode: AUTO).

  • Page 16: Descriptions Of Display

    RECEIVER COMPONENTS 5.3 DESCRIPTIONS OF DISPLAY Component Description Auto-off (APO symbol) Analog bar graph Sensitivity level MANUAL mode (in Cable Tracking Mode)
  • Page 17 WCT-700 Instruction Manual Component Description AUTO mode (in Cable Tracking Mode) NCV mode CODE symbol (displayed in Cable Tracking Mode) Transmitter code (O~7). This code is displayed in Cable Tracking Mode LEVEL symbol (displayed in Cable Tracking Mode) Transmitter power level (Ddisplayed in Cable Tracking Mode) This symbol means non-contact voltage (NCV) is sensed.

  • Page 18: Settings

    VI. SETTINGS 6.1 WCT-700T SETTINGS 6.1.1 CODE SETTING The default code is 5 when the transmitter is powered on. The transmitter is in powered-on state by default (transmission is not started by the transmitter). Short press the START/STOP button to stop transmission when transmission is started by the transmitter.

  • Page 19: Button Settings

    WCT-700 Instruction Manual started by the transmitter. When the LEVEL button is short pressed, the LEVEL symbol will flash for 0.5s, as shown in Figure 6.1.2a. Figure 6.1.2a When the LEVEL symbol flashes, short press the Up/Down button to set the level to , , or ) .

  • Page 20: Descriptions Of Tone

    6.1.4 DESCRIPTIONS OF TONE When the button function is enabled and the transmitter is not muted, the tone is a high-pitched short sound (about 200ms). When the button function is disabled and the transmitter is not muted, the tone is a low-pitched short sound (about 150ms).

  • Page 21: Ncv Mode Switching

    WCT-700 Instruction Manual Power on the receiver and then enter MANUAL mode (default reception sensitivity: 6), as shown in Figure 6.2.1b. In MANUAL mode, short press the UP button to adjust the sensitivity from 0 to 8. When the sensitivity is 8, short press the UP button to switch to AUTO mode.

  • Page 22: Descriptions Of Tone

    In AUTO scanning mode (cable tracking mode), the functions of the AUTO/MANUAL and DOWN buttons are enabled. In MANUAL scanning mode (in cable tracking mode), the functions of the AUTO/MANUAL, UP and DOWN buttons are enabled. Long press the power button for > 1s to enable the button function. 6.2.5 DESCRIPTIONS OF TONE When the button function is enabled and the receiver is not muted, the tone is a short high-pitched sound (about 200ms).
  • Page 23 WCT-700 Instruction Manual the electromagnetic fields around live wire are not counteracted by the opposite-direction signal of the loop of the adjacent conductors (live or neutral wire). The signal is transmitted through the independent grounding, and therefore, the intensity of the signal generated is the strongest.

  • Page 24: Tracking Energized And De-Energized Cables

    7.1 TRACKING ENERGIZED AND DE-ENERGIZED CABLES 7.1.1 CONNECT TEST LEADS TO THE TRANSMITTER Connect the black and red test leads to the transmitter (no need to consider the polarity). Connect the outlet converter to the outlet and connect the red test lead to the energized live wire (at the load side of the system).
  • Page 25 WCT-700 Instruction Manual Figure 7.1.2a – Voltage Over 30V For a de-energized circuit with voltage below 30V AC/DC, the warning symbol will turn off, as shown in Figure 7.1.2b. NOTE: Perform connection through the above-mentioned independent grounding. Figure 7.1.2b – Voltage Below 30V For most applications, the default transmission strength is (default code: 5).

  • Page 26: Use Of Wct-700R Receiver (In Automatic Scanning Mode)

    For specific operating method, see “6.1.2 LEVEL Setting”. Relatively low signal level can reduce the coupling of adjacent cables and metal objects, which avoids incorrect readings caused by ghost signals. Relatively low signal levels also help prevent the receiver from being oversaturated due to the large covering area of a strong signal.

  • Page 27: Use Of Wct-700R Receiver (In Manual Scanning Mode)

    WCT-700 Instruction Manual Figure 7.1.3a – Align to Sensor Dot NOTE: For best results, make sure that the distance between the receiver and the transmitter as well as its test leads are at least 3 ft apart. This will greatly reduce signal interference.

  • Page 28: Identifying Circuit Breaker And Fuse (Energized And De-Energized)

    Short press the AUTO/MANUAL (mode) button, and the LCD will show MANUAL, as shown in Figure 7.1.4a. Use the sensor to scan the target cable to identify the maximum signal level. During cabling tracking, adjust the sensitivity regularly so that the signal strength maintains at a certain range (i.e., 300~600), as shown in Figure 7.1.4b.

  • Page 29: Connect Test Leads

    WCT-700 Instruction Manual Figure 7.2a – Simple Connection Figure 7.2b – Independent Gounding (Preferred Choice 7.2.1 CONNECT TEST LEADS Connect the transmitter through simple connection or independent grounding. Through simple connection: Connect the test leads to live or neutral wire directly. Since signals counteract mutually, cables cannot be tracked when locating the circuit breaker.

  • Page 30: Use Of Wct-700R Receiver

    Figure 7.2.2a NOTE: To locate the cable more accurately, set the transmission strength to , to limit the level of the signal generated by the transmitter. Relatively low signal levels can reduce coupling with adjacent cables and metal objects, which avoids incorrect reading caused by ghost signals. Relatively low signal levels also help prevent the receiver from being oversaturated due to strong signals.
  • Page 31 WCT-700 Instruction Manual Manual Figure 7.2.3b – Align the Dot to the Circuit Breaker Figure 7.2.3c – Signal Detected NOTE: Since the designs, heights and internal contact structures of circuit breakers are different, the accuracy of identifying circuit breakers may be affected. To obtain reliable results, open the circuit breaker panel to scan the conductor instead of the circuit breaker.

  • Page 32: Ncv Mode And Passive Tracking

    7.3 NCV MODE AND PASSIVE TRACKING Without the use of transmitter, the NCV (Non-Contact Voltage) mode can be used to test if the cable is energized or to track cables. If the voltage is 80V~1000 V AC (50~60Hz), the receiver can detect and track the energized cable, without current flowing through it.

  • Page 33: Identify Breakpoints/Opens

    WCT-700 Instruction Manual METHOD 1: Bypass a GFCI-protected circuit to avoid triggering GFCI (applicable to energized GFCI-protected outlets only). Remove the protective outlet panel. Use alligator clips to connect the red test lead to the connection screw between the energized live wire and the outlet.
  • Page 34 Alternatively, connect two WCT-700T transmitters (set different codes on them) to both ends of the cable, respectively. If the signal is in the same location, the code is updated to the other receiver after the receiver passes above the breakpoint, in which case the location of the fault is found.

  • Page 35: Identify Shorts

    WCT-700 Instruction Manual 8.3 IDENTIFY SHORTS A shorted cable will trigger the circuit breaker. To correct the fault, disconnect the cable, and ensure that the conductors at the both ends of the cable are isolated from each other and from other conductors or loads.

  • Page 36: Track Cables In Metal Pipe

    8.4 TRACK CABLES IN METAL PIPES The receiver cannot penetrate metal pipes to pick up the signal of the cable. Metal wire grooves will shield the tracking signal completely. NOTE: The receiver can detect the cable in non-metal wire grooves. For these applications, see “7.1 Track Energized and De-energized Cables”...
  • Page 37 WCT-700 Instruction Manual Auto Manual Figure 8.5.1a – Track Shielded Cable (with its far end grounded) Auto Manual Figure 8.5.2a – Track Shielded Cable (with its far end disconnected from grounding)

  • Page 38: Track Grounding Wire

    8.6 TRACK GROUNDING WIRE The WCT-700 can track energized or de-energized cables buried in ground, and the tracking method is same as that of locating the cable on wall or ground. Perform tracking by using independent grounding. The default LEVEL is after the transmitter is powered on, as shown in Figure 8.6.1a.

  • Page 39: Identify The Specific Cable In Cable Harness

    WCT-700 Instruction Manual 8.8 IDENTIFY THE SPECIFIC CABLE IN A CABLE HARNESS Identify the specific cable in cable harness. Connect the transmitter. If connected to an energized cable, make sure that the transmitter is connected to the load side. Select cable tracking mode for the receiver.

  • Page 40: Draw A Circuit Diagram Using The Connection Of Test Leads

    8.9 DRAW A CIRCUIT DIAGRAM USING THE CONNECTION OF TEST LEADS Drawing a circuit diagram for the connection of test leads is only applicable to de-energized circuits. Set the circuit breaker to OFF position. Set the transmitter and the receiver according to the instructions of automatic or manual scanning mode in Section 7.1.

  • Page 41: Track The Circuit Breaker In The System With Illumination Dimmer

    WCT-700 Instruction Manual 8.10 TRACK THE CIRCUIT BREAKER IN THE SYSTEM WITH THE ILLUINATION DIMMER The dimmer will make many electrical noises, including signals with multiple frequencies. In a few cases, such noises, typically called “ghost” signals, are misread by the receiver as the signal generated by the transmitter.
  • Page 42 When the voltage is 8V~480V DC/AC (50/60Hz), and the measured volage is DC voltage and the positive pole is connected to COM port, then the polarity of the port will be displayed. The polarity of V + port will appear as “–”, as shown in Figure 9.1b. Figure 9.1b –...

  • Page 43: Elv Function

    WCT-700 Instruction Manual When the voltage is 8V~480V DC/AC (50/60Hz), and the measured voltage is greater than 480V, then display will appear the same as Figures 9.1g, 9.1h and 9.1i. Figure 9.1g – DC Voltage Figure 9.1h – DC Voltage Figure 9.1i –...
  • Page 44 CHARACTERISTICS WCT-700T Overvoltage rating CAT III 480V Display Segmented LCD (TN translucent) Battery 6 x 1.5V AA (LR06) ≤ 600mA lpp (Peak) Power consumption Fuse F0.6A 600V Operating temperature 0~40°C; Max. 80%RH (non-condensing) Storage temperature -20~60°C; Max. 80%RH (non-condensing) ≤ 2000m Operating altitude External dimensions 189 mm x 96 mm x 48 mm...
  • Page 45 WCT-700 Instruction Manual CHARACTERISTICS WCT-700T Supported (Support testing in energized Single pole testing condition; Maximum 480V) Supported (Support testing in energized Dual pole testing condition; Maximum 480V) 1. Without batteries: If external voltage applied is > 25V, the ELV LED emits weak light and...

  • Page 46: Receiver Specifications

    TECHNICAL SPECIFICATIONS 10.2 RECEIVER SPECIFICATIONS CHARACTERISTICS WCT-700R Working Frequency 33kHz Locating depth Related to the medium and the method use Tracking mode for single pole About 0~2.5m (use separate loop wire for 2.5m) Tracking mode for dual poles About 0~0.5m Grid voltage identification About 0~0.4m Voltage identification range: 80~1000V,...
  • Page 47 WCT-700 Instruction Manual CHARACTERISTICS WCT-700R Weight (excluding batteries) 287g Weight (including batteries) 354g Indication for running out of power Supported (for transmitter) Backlight Supported (white) Flashlight Supported CODE (code value) 0, 1, 2, 3, 4, 5, 6 and 7 Levels of signal strength of transmitter...

  • Page 48: Maintenance

    XI. MAINTENANCE 11.1 BATTERY REPLACEMENT ( WCT-700T ) Make sure that the transmitter is powered off and that all test leads are removed and disconnected from all circuits. Use a screwdriver to loosen the screws at the battery compartment. Remove the battery cover. Install the batteries.
  • Page 49 WCT-700 Instruction Manual Loosen the screws at the rear cover. Remove the rear cover and take out the fuse. Install a new fuse. Install the rear cover and fasten it with the screws. Install battery cover and fasten it with the screws.

  • Page 50: Battery Replacement (Wct-700R)

    11.4 BATTERY REPLACEMENT ( WCT-700R ) The batteries are fixed by a screw, which prevents damage to the batteries in case the receiver falls. 6 AAA alkaline batteries must be used. NOTE: Batteries are not preinstalled. Make sure that the receiver is powered off and disconnected from all circuits. Use screwdriver to loosen the screw at the battery compartment.
  • Page 51 WCT-700 Instruction Manual NOTES...

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