Fisher Labs F4 Operating Manual
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The F4 metal detector is warranted against defects in materials and
workmanship under normal use for five years from the date of purchase
to the original owner.
Damage due to neglect, accidental damage or misuse of this product is
not covered under this warranty. Decisions regarding abuse or misuse of
the detector are made solely at the discretion of the manufacturer.
Proof of Purchase is required make a claim under this warranty.
Liability under this Warranty is limited to replacing or repairing, at our
option, the metal detector returned, shipping cost prepaid to Fisher Labs.
Shipping cost to Fisher Labs is the responsibility of the consumer.
To return your detector for service, please first contact Fisher Labs for a
Return Authorization (RA) Number. Reference the RA number on your
package and return the detector within 15 days of calling to:
Fisher Labs
1465-H Henry Brennan Dr.
El Paso, TX 79936
Phone: 915-225-0333 ext.118
Warranty coverage does not include the cost of transporting the
detector back to an owner who is located outside of the United States of
America.
Copyright© 2007
All rights reserved, including the right to reproduce this book, or parts thereof, in any form.
Fisher ® is a registered trademark of Fisher Research Labs
www.fisherlab.com
1465-H Henry Brennan, El Paso, TX 79936 • (915) 225-0333
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Table of Contents
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Summary of Contents for Fisher Labs F4

  • Page 1 Fisher Labs. Shipping cost to Fisher Labs is the responsibility of the consumer. To return your detector for service, please first contact Fisher Labs for a Return Authorization (RA) Number. Reference the RA number on your...
  • Page 2: Target Pinpointing

    TABLE OF CONTENTS TARGET PINPOINTING (no-motion PINPOINT mode) After you have identified a target using a motion mode of detection, ........3 press the PINPOINT pad to identify the target’s exact location.
  • Page 3: Search Techniques

    SETTING UP SEARCH TECHNIQUES (in DISC mode) No tools required. After detecting a target, do the Insert the lower stem (plastic tube) into the middle following: stem. WRONG Walk around the target in a Position the lower stem with the silver circle.
  • Page 4: Sensitivity Adjustment

    Some brands of batteries will require moderate force to clear the Try sweeping it over the ground. retaining tabs. If the F4 chatters while held still, or held up in the air, it may be much Replace the battery door. quieter when sweeping over the ground.
  • Page 5: Dd Coil Characteristics

    Zinc Penny lower the tone. Quarter The F4 is supplied with a standard b.Motion is required. Objects 4” auxiliary search coil. The 4” coil must be in motion over the will not classify steel bottle caps in the 10¢ and search coil to be detected.
  • Page 6: Depth And Target Display

    Five “R”s are now metal can fall under any one of these background hum. Such inaccuracy will displayed. categories. While the F4 will eliminate be less apparent when the object to or indicate the presence of most closer to the searchcoil, but more common trash items, it is impossible to apparent when farther away.
  • Page 7: Control Panel

    CONTROL PANEL DEPTH AND TARGET DISPLAY READING THE DISPLAY will The Liquid Crystal Display (LCD) shows register under PT or S-cap. SENSITIVITY + AND – the PROBABLE identification of the will register under These controls change the detector’s sensitivity; targeted metal, as well as the PROBABLE S-cap or Zinc.
  • Page 8: Tone Audio System

    CONTROL PANEL 4-TONE AUDIO SYSTEM – DISCRIMINATION (THRESHOLD) + AND While the LCD (Liquid Crystal Display) is very accurate in identifying buried objects, the user in the field does not always maintain the The f display screen in his field of vision. Therefore, we have incorporated an you are in before you press audio feedback mechanism to alert the user to the nature of buried these touch pads.
  • Page 9: Ground Balancing

    GROUND BALANCING CONTROL PANEL (continued) PINPOINT Notice that the position of the KNOB affects This is a static search and static pinpointing the sound relative to the coil’s direction: mode; no coil motion over the target is required If you hear a louder sound as the to detect metal.
  • Page 10 CONTROL PANEL GROUND BALANCING As you sweep the searchcoil over a metal object, a numeric target What is Ground Balancing? identification will appear in the center of the display. At the same time, Why do I need to Ground Balance? the bar graph on the left of the display will indicate the target depth, in inches.

Table of Contents