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sewerin FerroTec FT 10 Operating Instructions Manual

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FerroTec FT 10
Operating instructions

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Summary of Contents for sewerin FerroTec FT 10

  • Page 1 FerroTec FT 10 Operating instructions...
  • Page 2 Sensor area Arrow-up key Arrow-down key Zero point key Menu key ON/OFF key Handle Pipe Charging socket Loudspeaker FerroTec FT 10 – Handle as seen from above (top left), handle as seen Fig. 1: from below (bottom left), side view (right)
  • Page 3 Display Current locating intensity (aiming circle) Strength of alternating field (bar) Symbol area Current locating value Symbol area Fig. 2: Display with aiming circle view Symbol area Current locating value Current locating intensity (bar) Symbol area Fig. 3: Display with bar view Symbols in the symbol areas Symbol Significance...
  • Page 4 Information about this document The warnings and notes in the document mean the following: WARNING! Risk of damage to property. Note: Tips and important information. Enumerated lists (numbers, letters) are used for: ● instructions that must be followed in a specific sequence Bullet lists (bullet points, dashes) are used for: ●...

  • Page 5: Table Of Contents

    Contents Page Introduction ................1 Notes on handling the product ..........2 Warranty ..................2 Intended use ................2 General safety information ............3 Product description ..............4 Setup ..................4 Power supply ................4 Operating mode ................4 Playing back signals ..............5 3.4.1 Display on the screen .............5 3.4.2 Audible ...................6 Alternating field display (warning of live cables) .......6...
  • Page 6 Contents Page Maintenance ................21 Charging the batteries .............21 Care ..................22 Servicing .................22 Solving problems ..............23 6.4.1 Troubleshooting..............23 6.4.2 Error messages ..............24 Appendix ................25 Technical data .................25 Factory default settings ............27 EU declaration of conformity ...........27 Advice on disposal ..............27 Index ..................28...

  • Page 7: Introduction

    1 Introduction Introduction The FerroTec FT 10 is a magnetometer used to locate concealed ferromagnetic objects (steel, iron, cast iron). There are two sensors in the magnetometer. These respond to changes in the earth’s magnetic field caused by ferromagnetic materials.

  • Page 8: Notes On Handling The Product

    The manufacturer reserves the right to make technical changes. Intended use The FerroTec FT 10 can be used to locate ferromagnetic objects (steel, iron, cast iron). In particular, the magnetometer is intended for locating sliding rods, manhole covers, metal pit covers, pave-...

  • Page 9: General Safety Information

    2 Notes on handling the product General safety information This product was manufactured in keeping with all binding legal and safety regulations. It corresponds to the state-of-the-art and conforms to EC requirements. The product is safe to operate when used in accordance with the instructions provided. However, if you handle the product improperly or not as intended, the product may present a risk to persons and property.

  • Page 10: Product Description

    3 Product description Product description Setup For overviews including all part names for the FerroTec FT 10 , see the front cover flap (Fig. 1). Power supply The product is powered by special inbuilt NiMH rechargeable batteries. Only SEWERIN service personnel or other authorised specialists may replace the rechargeable batteries.

  • Page 11: Playing Back Signals

    3 Product description Playing back signals 3.4.1 Display on the screen The elements shown on the screen are explained inside the front cover (Fig. 2 and Fig. 3). Some elements are always visible, oth- ers only in certain operating or locating situations. The location of an object is displayed on the screen in two ways simultaneously: ●...

  • Page 12: Audible

    3 Product description You can set the type of visual representation in the menu under VIEW. Information about changing the setting can be found in section 5.5.2 on page 19. 3.4.2 Audible In addition to the on-screen display, you can also use an audible signal (beep) to locate objects.

  • Page 13: Zero Point

    You can manually reset the zero point again any time during the locating process. SEWERIN recommends this especially at the start of every new locating procedure. Information on setting the zero point can be found in section 5.3...

  • Page 14: Automatic Power Off

    3 Product description Automatic power off The magnetometer has an automatic power off feature. This re- duces the power consumption of the inbuilt rechargeable bat- teries and prevents them from being damaged by undervoltage. The magnetometer automatically switches off in the following situations: ●...

  • Page 15: Locating Objects

    4 Locating objects Locating objects Handling the magnetometer during location Note the following points to ensure that the locating process is successful: ● Reduce the impact of sources of interference as much as pos- sible. Information about sources of interference can be found in section 4.3.2 on page 14.

  • Page 16: Signals Dependent On The Position And Size Of An Object

    4 Locating objects Signals dependent on the position and size of an object The beep usually reaches its maximum directly above the object. The display can show positive or negative values. This applies to objects with the following position and size: ●...
  • Page 17 4 Locating objects There are two maximum points for objects lying horizontally in parallel to the earth’s magnetic field. The maximum points occur at each end of the object (Fig. 7). One of the maximum points is positive, the other is negative. Fig.

  • Page 18: Factors Influencing The Location Results

    4 Locating objects Objects, that are long and very narrow and horizontal but per- pendicular to the earth’s magnetic field, show just one maximum point in practice (Fig. 8). Fig. 8: Large object lying horizontally and perpendicular to the earth’s magnetic field.
  • Page 19 4 Locating objects ● If the distance between the magnetometer and surface crease without the sensitivity changing, it is more difficult and maybe even impossible to locate the object (Fig. 9). ● The maximum area is narrower than with larger objects. Note: ●...

  • Page 20: Sources Of Interference

    4 Locating objects 4.3.2 Sources of interference All ferromagnetic objects generate interference fields. Interfer- ence fields can make it more difficult to locate an object. Interfering objects include for example: ● Steel fences, gratings ● Vehicles ● Safety shoes with steel toecaps ●...

  • Page 21: Operation

    5 Operation Operation Switching the magnetometer on and off The ON/OFF key switches the magnetometer on and off. Switching on Note: ● When switching it on, hold the magnetometer firmly, keeping your fingers away from the sensor area. ● Keep the magnetometer as steady as possible until it is switched on so that the zero point is correctly set.
  • Page 22 5 Operation Note: Do not touch the sensor area while the DON’T TOUCH message is displayed. 2. Wait until the DON’T TOUCH message disappears. The mag- netometer is then ready for use. Fig. 12: Magnetometer ready for use with aiming circle view In the example shown there is at least one object in the locat- ing area.

  • Page 23: Changing The Sensitivity

    5 Operation Changing the sensitivity You can change the sensitivity during the locating process. The magnetometer is switched on. ● Press the arrow-down key to reduce the sensitivity. ● Press the arrow-up key to increase the sensitivity. Enabling the sensitivity boost The magnetometer is switched on.

  • Page 24: Listening To The Audible Signal (Beep)

    5 Operation Listening to the audible signal (beep) 5.4.1 In hold mode The magnetometer is switched on. The value under MODE in the menu is set to 0. ● Place your thumbs on the sensor area to switch on the beep. ●...

  • Page 25: Settings

    5 Operation Settings 5.5.1 SETUP menu The SETUP (Fig. 13) menu contains five menu items. Each menu item can assume two states (value 0 or value1). SETUP MODE: 0 VIEW: 1 BOOST: 0 LED: RESET: 0 Fig. 13: SETUP menu Menu Significance Values...
  • Page 26 5 Operation 4. Press the Menu key. The set values are accepted. The SETUP menu closes. The magnetometer is ready for use again. Note: The set values are permanently saved until the next change. Cancelling ● Press the Menu key to exit the SETUP menu without making any changes.

  • Page 27: Maintenance

    The vehicle cable is available to buy as an accessory. The magnetometer can be switched on or off when charging the batteries. SEWERIN recommends that the magnetometer be switched off when charging the batteries. 1. Plug the AC/DC adapter plug into the charging socket of the magnetometer.

  • Page 28: Care

    6 Maintenance Care All that is necessary to care for the magnetometer is to wipe it down with a damp cloth. SEWERIN recommends removing sig- nificant contamination immediately. WARNING! Risk of scratching! The display surface is plastic. ● Do not use any mechanical or aggressive chemical agents for care.

  • Page 29: Solving Problems

    In some cases it may simply be an operating error. SEWERIN recommends first look- ing for the cause of the problem yourself. If the cause of the prob- lem cannot be found, SEWERIN Service will be pleased to help. 6.4.1 Troubleshooting...

  • Page 30: Error Messages

    6 Maintenance 6.4.2 Error messages The magnetometer displays errors with an error code. If the errors continue to occur, the magnetometer must be sent to SEWERIN Service. ERR001 Meaning: Internal error Conse- Settings are reset to factory default quence: Display: Error code is visible for approx.

  • Page 31: Appendix

    7 Appendix Appendix Technical data Device data Dimensions (W × D × H): 89 × 211 × 760 mm Weight: 1.28 kg Certificates Certificate Features Display Monochromatic graphic display, 128 x 64 pixels Processor Digital signal processor 2 x 16 bit Controls Membrane keypad with five keys, capacitive sensor area...
  • Page 32 7 Appendix Measurement Filter 50 – 60 Hz Measurement principle Fluxgate Measuring rate 400 Hz, resolution 16 bit Indication range 0 – 999 digit Indication error 20% of end value Sensitivity levels...

  • Page 33: Factory Default Settings

    Description of waste Allocated EWC waste code Device 16 02 13 Rechargeable battery 16 06 05 End-of-life equipment Used equipment can be returned to Hermann Sewerin GmbH. We will arrange for the equipment to be disposed of appropriately by certified specialist contractors free of charge.

  • Page 34: Index

    8 Index Index Aiming circle view 5 LED 19 Alternating field display 6 Live cables 6 Audible signal 6 Location, handling the magnetometer 9 in hold mode 18 in toggle mode 18 listening 18 Menu 19 AUTO POWER OFF 8 MODE 19 Bar view 5 NiMH rechargeable battery 4...
  • Page 35 8 Index playback 5 visual representation 5 Sources of interference 14 Start screen 15 Switching off 16 Switching on 15 Toggle mode 4 Use, intended 2 VIEW 19 Zero point 7 adjusting 17...
  • Page 36 Hermann Sewerin GmbH Robert-Bosch-Straße 3 33334 Gütersloh, Germany Tel.: +49 5241 934-0 Fax: +49 5241 934-444 www.sewerin.com info@sewerin.com SEWERIN SARL Sewerin Ltd 17, rue Ampère – BP 211 Hertfordshire 67727 Hoerdt Cedex, France Tél. : +33 3 88 68 15 15...

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