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Operating instructions for Cable Detector, article 37270766
Operating Instructions: Cable Detector
In order to be able to use the cable detector to the full, read the operating instructions attentively and
completely before taking the device into operation, and store this document where it is easily accessible
Page 1 of 34
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Summary of Contents for Mastech MS6818
- Page 1 Operating instructions for Cable Detector, article 37270766 Operating Instructions: Cable Detector In order to be able to use the cable detector to the full, read the operating instructions attentively and completely before taking the device into operation, and store this document where it is easily accessible Page 1 of 34...
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Page 2: Table Of Contents
Operating instructions for Cable Detector, article 37270766 Table of Contents 1. SCOPE OF DELIVERY 2. SAFETY INSTRUCTIONS 3. OVERVIEW 3.1 P RODUCT INTRODUCTION 3.2 C HARACTERISTICS OF THE CABLE DETECTOR 3.3 D ESCRIPTION AND FUNCTION 3.3.1 T RANSMITTER ILLUSTRATION 3.3.2 T RANSMITTER DISPLAY 3.3.3 R ECEIVER ILLUSTRATION... - Page 3 Operating instructions for Cable Detector, article 37270766 6.4 S ILENT FUNCTION 6.5 A UTOMATIC SWITCH 7. TECHNICAL PARAMETERS 7.1 T ECHNICAL PARAMETERS OF THE TRANSMITTER 7.2 T ECHNICAL PARAMETERS OF THE RECEIVER 8. REPAIR AND MAINTENANCE 8.1 T ROUBLESHOOTING 8.2 C HECK THE TRANSMITTER FUSE 8.3 C LEANING...
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Page 4: Scope Of Delivery
Operating instructions for Cable Detector, article 37270766 1. Scope of delivery Examine the cable detector carefully after opening the package and make sure that it was not damaged during shipping. Thoroughly check the accessories, control switch and connections. If there is obvious damage or a malfunction, contact the supplier immediately. -
Page 5: Safety Instructions
Operating instructions for Cable Detector, article 37270766 2. Safety instructions This cable detector has been manufactured in accordance with the applicable safety requirements for electronic test and measurement instruments, and was completely checked prior to packaging and shipping. Please read these operating instructions carefully before taking the device into operation, and follow all instructions. - Page 6 Operating instructions for Cable Detector, article 37270766 Important! Please follow these instructions in order to ensure safe operation and good performance. 1.) Pre-check Before use, check to see that the cable detector functions properly and make sure that it was not damaged during storage and transport.
- Page 7 Operating instructions for Cable Detector, article 37270766 1. Measurements in dangerous proximity to electrical systems may be made only under the direction of a responsible electrician. 2. If the device is used to test a live wire, make sure that the test lead is removed from the component under test before connecting or disconnecting the test lead of the transmitter, and tell people in the vicinity to protect themselves well.
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Page 8: Overview
Operating instructions for Cable Detector, article 37270766 Overview Product introduction When you cut a hole in a wall to install air conditioning, dig a hole in the ground to install a machine, or dig up a road, you first have to check the location of cables, water pipes and gas lines, to avoid them and prevent unnecessary problems and hazards. -
Page 9: Characteristics Of The Cable Detector
Operating instructions for Cable Detector, article 37270766 3.2 Characteristics of the cable detector Detects cables, electric, water and gas supply lines in walls and in the ground. Detects breaks and short-circuits in electric lines in walls and in the ground. ... -
Page 10: Description And Function
Operating instructions for Cable Detector, article 37270766 Description and function 3.3.1 Transmitter illustration 3.3.2 Transmitter display Page 10 of 34... -
Page 11: Receiver Illustration
Operating instructions for Cable Detector, article 37270766 3.3.3 Receiver illustration 3.3.4 Receiver display 3.3.5 Receiver display in search mode (1) Automatic mode (2) Manual mode (3) Grid voltage detection Page 11 of 34... -
Page 12: Measuring Procedure
Operating instructions for Cable Detector, article 37270766 Measuring procedure Safety procedures during measuring 1. Connecting the transmitter to the grid supply can generate a current of a few milliamperes in the circuit in live condition; accordingly, the transmitter can be grounded only on a neutral conductor. If the transmitter connection is from the phase to the protective conductor, the functional safety of the protective conductor must first be tested per DIN VDE 0100. - Page 13 Operating instructions for Cable Detector, article 37270766 Optional connection types 1. Single-pole use: Connect the transmitter with just one lead. The high frequency signal generated by the transmitter can detect and track only one conductor. The second conductor is ground. This configuration generates a high frequency current that flows through the conductor and on to ground, similar to a radio or receiver.
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Page 14: Examples Of Typical Applications
Operating instructions for Cable Detector, article 37270766 Examples of typical applications For this example you will need a length of shielded cable with a 1.5 mm cross section. Install 5 m of the cable temporarily on a wall at eye level using nail clamps. The wall should be accessible from both sides. Make a break in the line 1.5 m away from the transmitter connection. - Page 15 Operating instructions for Cable Detector, article 37270766 1. Use in open circuits is suitable for locating sockets and switches that are not bearing current. 2. The tracking depth depends on the material and the conditions of use. The ideal tracking depth is 0 to 2 m.
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Page 16: Detecting Cable Breaks
Operating instructions for Cable Detector, article 37270766 5.1.2 Locating and tracking wires and sockets Requirements: 1. Make sure there is a complete ground connection. The circuit must not be live. 2. With single-pole display it is also possible to track lateral ... -
Page 17: Detecting Line Breaks With Two Transmitters
Operating instructions for Cable Detector, article 37270766 5.1.4 Detecting line breaks with two transmitters When locating a line break with one transmitter supplied from one lead end, breaks cannot be precisely located due to field interference in unfavourable conditions. These limitations can be ameliorated by connecting two transmitters, one at each end. -
Page 18: Fault Detection In Defective Electric Underfloor Heating
Operating instructions for Cable Detector, article 37270766 1. Make sure of complete grounding. 2. The transition resistance of a line break must be higher than 100 kOhm. 3. The grounding connected to the transmitter can the ground of a socket or a properly grounded water pipe. -
Page 19: Locating Blockages In Non - Conductive Lines
Operating instructions for Cable Detector, article 37270766 5.1.6 Locating 1. During tracking, at the break location there will be an blockages abrupt decline in the signal shown at the receiver. in non- 2. Adjust the transmitter power to suit the different conductive search radii. -
Page 20: Locating Metal Water And Heating Pipes
Operating instructions for Cable Detector, article 37270766 5.1.7 Locating metal water and heating pipes Requirements: The pipe must be of metal (e.g. galvanized steel pipe). The pipeline must not be grounded. There should be relatively high resistance between pipe and floor (otherwise the search range will be very small). -
Page 21: Finding A Circuit In A Storey
Operating instructions for Cable Detector, article 37270766 5.1.8 Finding a circuit in a storey When searching for a circuit in the same storey, proceed as follows: 1) Switch off the main switch in the switchgear cabinet for the storey. 2) Disconnect the neutral lead in the switchgear cabinet for this storey from the neutral leads for other storeys. -
Page 22: Tracking Lines Under Plaster
Operating instructions for Cable Detector, article 37270766 5.1.9 Tracking lines under plaster Requirements: The circuit must be voltage-free. Connect the transmitter as shown in Fig. 3-1-9. The transmitter ground conductor must be correctly grounded. Set the receiver to automatic mode. ... -
Page 23: Two-Pole Use
Operating instructions for Cable Detector, article 37270766 5.2 Two-pole use 5.2.1 Use in closed circuits This procedure can be used when voltage is applied, or when voltage is not applied. In uncharged circuits the transmitter only sends coder signals to the circuit to be found. In live circuits the transmitter only sends coder signals to the circuit to be found, but also measures and shows the voltage of the charged circuit as shown in Fig. -
Page 24: Detecting Fuses
Operating instructions for Cable Detector, article 37270766 5.2.2 Detecting fuses In a building with multiple apartments, use connections L and N on the socket of one of the apartments to send the signals from the transmitter (as shown in Fig. 3 22), and set the transmitter power to a suitable level. Requirements: ... -
Page 25: Locating The Cause Of A Short-Circuit
Operating instructions for Cable Detector, article 37270766 5.2.3 Locating the cause of a short-circuit Requirements: The circuit must be voltage-free. Connect the transmitter per Fig. 3-2-3. The measurement procedure is the same as shown in the example. 1. -
Page 26: Locating Deeply Covered Power Cables
Operating instructions for Cable Detector, article 37270766 5.2.4 Locating deeply covered power cables In two-pole use the search depth is severely limited if the ring conductor consists of centre wires as in multi- strand cables (such as NYM 3x1.5 mm²), because the short distance between the supply line and the ring conductor generates a highly distorted magnetic field. -
Page 27: Classifying Or Identifying A Covered Circuit
Operating instructions for Cable Detector, article 37270766 5.2.5 Classifying or identifying a covered circuit Requirements: The circuit must be voltage-free. The ends of the centre wires must be twisted together and conductive to each other. Connect the transmitter as shown in Fig. 3-2-5. ... -
Page 28: Method To Increase The Effective Radius When Detecting Live Circuits
Operating instructions for Cable Detector, article 37270766 5.3 Method to increase the effective radius when detecting live circuits When the transmitter is connected directly to the phase and neutral conductors the signals are fed to two parallel circuit (as shown in Fig. 3-3-1). Therefore, circuits can sometimes cause signals that counteract each other, leading to an effective search radius of no more than 0.5 m. -
Page 29: Identifying Grid Voltage And Searching For Breaks In Circuits
Operating instructions for Cable Detector, article 37270766 5.4 Identifying grid voltage and searching for breaks in circuits Requirements: The circuit must have AC voltage. Measurement must be performed as shown in Fig. 3-4. Set the transmitter to “grid identification” (UAC) mode. 1. -
Page 30: Other Functions
Operating instructions for Cable Detector, article 37270766 Other functions 6.1 Voltmeter function of the transmitter When the transmitter is connected to a live circuit and the external voltage is higher than 12 V, the voltage will be shown at the bottom left of the transmitter monitor using standard symbols to differentiate between AC and DC circuits (see (4), (5) and (6) on the interface shown on the transmitter), and at the top of the monitor there will be a lightning symbol with a triangular frame (see (10) on the interface shown on the transmitter). -
Page 31: Technical Parameters
Operating instructions for Cable Detector, article 37270766 7. Technical parameters 7.1 Technical parameters of the transmitter 125kHZ Output signal External voltage identification range DC 12~400V±2.5%; AC 12~400V(50-60Hz±2.5%; Display LCD with function display and column diagram Dielectric stability, external voltage Max. 400V AC/DC Overvoltage type CAT III 300V Degree of contamination... -
Page 32: Check The Transmitter Fuse
Operating instructions for Cable Detector, article 37270766 voltage Is the sensor inserted all the way? Insert sensor correctly. Is the test lead defective? Replace test lead. Is the test lead inserted all the way? Connect test lead correctly. Power supply Is the battery power too low? Install new battery. -
Page 33: Cleaning
Operating instructions for Cable Detector, article 37270766 8.3 Cleaning Use a damp cloth to clean the transmitter. If necessary use a neutral cleanser. The transmitter must then be towel- dried. 1. Before doing any cleaning make sure that the device is switched off and all circuits are disconnected. -
Page 34: Addresses
Operating instructions for Cable Detector, article 37270766 9. Addresses Customer Service Tel.: +49 (4281) 712-0 Fax: +49 (4281) 712-49 Address Wilhelm Fricke SE Zum Kreuzkamp 7 D-27404 Heeslingen 10. Legal Notice Original manufacturer declaration for cable detector Manufacturer: Wilhelm Fricke SE - D-27404 Heeslingen 1st edition, October 2016 ©2016 Wilhelm Fricke GmbH Reproduction in whole or in part is prohibited without the written consent...
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