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Summary of Contents for Megger MCT105
- Page 1 MCT105 Cable Tracer and Fault Locator User Guide...
- Page 2 T +44 (0)1304 502101 F +44 (0)1304 207342 www.megger.com Megger Ltd reserves the right to alter the specification of its products from time to time without notice. Although every effort is made to ensure the accuracy of the information contained within this document it is not warranted or represented by Megger Ltd.
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Page 3: Declaration Of Conformity
Limited described in this user guide is in compliance with Directive 2014/53/EU. Other equipment manufactured by Megger Instruments Limited described in this user guide is in compliance with Directives 2014/30/EU and 2014/35/EU where they apply. The full text of Megger Instruments EU declarations of conformity are available at the following internet address: megger.com/company/about-us/eu-dofc www.megger.com... -
Page 4: Product Description
1. Introduction Product description The Megger MCT105 Cable Tracer and Fault Locator kit consists of a transmitter, receiver and ancillary leads. It is designed to trace and aid fault location in cables, circuits or metallic conductors, such as pipes. The signal produced by the transmitter is a modulated current, generating an electro-magnetic field around the conductor. -
Page 5: Warnings, Cautions, And Notes
Battery symbol IEC Overvoltage Category CAT III CAT III equipment is designed to protect against transients in equipment in fixed equipment installations, such as distribution panels, feeders and short branch circuits, and lighting systems in large buildings. Double insulated www.megger.com... -
Page 6: Safety Warnings
„ Prior to operation, check that the transmitter, receiver and any connection cables are in good condition and not damaged. The meter must not be used if any damage is identified, Contact Megger for repair. The Cable Locator may only be used on systems complying with the nominal voltages indicated in the „... -
Page 7: Instrument Overview
Power button Battery case Transmitter display Item Description Item Description Transmitted code (1,2,3,4,5,6,7) Low battery indication External voltage detected Transmitted level display (I, II or Ill) External voltage level (12 V, 50 V, 120 V, 230 V, 400 V) www.megger.com... -
Page 8: Receiver Layout
Transmitter: Fuse protection The built-in fuses protect the instrument against overload or incorrect operation. Fuse replacement can only be undertaken by Megger or an approved service center. If the transmitter signal appears weak, check for fuse failure using the following method: Disconnect the transmitter from all connected measurement circuits. -
Page 9: Receiver Display
Torch ON/OFF indication The manual mode active indicator Transmitter signal code Mains voltage indicator (NCV mode) Automatic signal mode active indicator Signal intensity digital display Signal strength bar-graph Transmitter signal level (1 to 3) Battery level Non-contact voltage mode active www.megger.com... -
Page 10: Operation
Press the mode button to select manual mode. When the manual mode is selected the symbol “SENSE” is displayed. 4.1.3 AC Non-Contact Voltage (NCV) detection mode Press the NCV button to switch between cable locator mode and non-contact voltage detection mode www.megger.com... -
Page 11: Operating Principle
Then, the transmitter is supplied by the built-in battery. NOTE : The Cable Locator can only detect or locate cables, which are connected correctly. Single pole method (In open circuits) 5.2.1 Cable interruptions in walls and floors. Finding and tracing cables, sockets, junction box, switches, pipes etc. www.megger.com... - Page 12 WARNING : Care must be taken when making any connection to live or potentially live circuits. Correct safety procedures must be followed. NOTE : Switching sensitivity between Level 1 and Level 3 increases the sensitivity by a factor of 5. Figure 3: www.megger.com...
- Page 13 The tracing depth of sheathed cables and conductors is different due to the individual cores being twisted around each other. To pin-point an interruption, a resistance greater that 100 KΩ must be present. Verification of the resistance can be made using a simple multimeter. www.megger.com...
- Page 14 The earthed connections must be connected to a known earth, either on an existing circuit or any earthed metalwork such as a water pipe. Make sure during interruption locating in multi-wire shielded conductors and cables, that all remaining cables are connected to earth. This is required to avoid inductive disturbance. (Figure 6) www.megger.com...
- Page 15 Locating of bottlenecks (obstructions) in installation pipes (single-pole method) When locating of bottlenecks in installation pipes, All circuits in the pipe must be dead, isolated and earthed. Connect transmitter to the metal coil and auxiliary earth as shown in figure 8. www.megger.com...
- Page 16 If safe to do so, the board cover can be removed to allow exact cable identification made at the fuse termination (figure 9). Figure 9: NOTE : Set transmitter to LEVEL I NOTE : Switching sensitivity between Level 1 and Level 3 increases the sensitivity by a factor of 5. www.megger.com...
- Page 17 Connect the transmitter “red” terminal to the pipe or conductor to be traced. The “black” terminal must be connected to the Main Earth terminal. (Figure 11) NOTE : Switching sensitivity between Level 1 and Level 3 increases the sensitivity by a factor of 5. Setup: manual mode, minimal sensitivity. Maximum tracing depth 2.0 m. www.megger.com...
- Page 18 3. Connect the transmitter “red” terminal to the Neutral bar and the “black” terminal to the Main Earthing Terminal (figure 13). This will allow the neutral conductor of all circuits to be traced. WARNING : For safety reasons the circuit must be switched off and isolated as per local regulations. www.megger.com...
- Page 19 The distance between injection and return line must be 2.0 m or more. Figure 14: NOTE : Switching sensitivity between Level 1 and Level 3 increases the sensitivity by a factor of 5. Setup: manual mode, minimal sensitivity. Maximum tracing depth 2.5 m. www.megger.com...
- Page 20 If the transmitter is attached to the line and neutral, the signal will be reduced as the feed and return cables running side by side cancel each other out (as shown in figure 16). If the cores are twisted, this can lead to a further reduction in the transmitted signal. www.megger.com...
- Page 21 One end of the lead will require shorting together (as shown in Figure 18) If multiple transmitters are available, each transmitter should be set to a unique signal (1 - 7). Connect the transmitters as shown in figure 18. www.megger.com...
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Page 22: Non-Contact Voltage Detection
WARNING : Although different signal intensities may indicate the presence and level of voltage, a dedicated voltage measurement instrument MUST be used to prove voltage value if required. www.megger.com... - Page 23 5.20 Transmitter Flashlight The flashlight located on the transmitter can be turned on and off by pressing the flashlight button. The flashlight turns off automatically after approximately 60 seconds to conserve battery life. www.megger.com...
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Page 24: Maintenance
If an instrument is not for over an extended time period, the batteries must be removed. Should the instrument be contaminated by leaking battery cells, the instrument must to be returned to Megger for cleaning and inspection. -
Page 25: Specifications
Operating temperature 0 - 40 C, max 80% rel. humidity (not condens.) Storage temperature 20 - 60 C, max 80% rel. humidity (not condens.) Altitude up to 2000 m. Dimensions 192 x 61 x 37 mm Weight approx. 180 g www.megger.com... -
Page 26: Warranty And Repair
Some states or countries laws vary, so the above limitations or exclusions may not apply to you. Megger Limited Archcliffe Road Dover... -
Page 27: Battery Disposal
9. Decommissioning WEEE Directive The crossed out wheeled bin symbol placed on Megger products is a reminder not to dispose of the product at the end of its life with general waste. Megger is registered in the UK as a Producer of Electrical and Electronic Equipment. The Registration No is WEE/ HE0146QT. - Page 28 +1 610 676 8500 +1 610 676 8610 +44 (0)1 304 502101 +44 (0)1 304 207342 Megger USA - Dallas Megger AB Megger USA - Fort Collins 4545 West Davis Street Rinkebyvägen 19, Box 724, 4812 McMurry Avenue SE-182 17 Dallas TX 75237...
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