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Comprehensive Operating Manual & Guide to Metal Detecting 

PRO-TECH 

4

PRO-TECH

Comprehensive Operating Manual & Guide to Metal Detecting

Introduction to the PRO-TECH

The PRO-TECH is a professional grade metal detector, designed specifically for

the Archaeological professional.  It comes equipped with a carry case and

everything you will need on the dig site.  

This manual has been written to help you get optimal use of your detector, so we

hope you will read it thoroughly before your first outing and will also refer back to

this manual from time to time to reinforce features and methods as you become

more proficient in the field.

The new PRO-TECH is unique among professional metal detectors for its

combination of high sensitivity to small targets and its versatile function as an all-

purpose metal detector.  It is lightweight, very easy to use, and the single 9V

batter will give up to 20 hours of continuous use.

The controls and features are tailored to Archeology including a sophisticated

ground balancing system, separate control over signal gain and threshold, and a

unique discrimination control system.  With an on-screen Ground Phase readout

it is possible to notice extreme shifts in mineralization which could indicate a

location where a fire destroyed a wooden structure.

5-Year Limited Warranty

Register your  warranty  on-line  for  a chance  to win a

FREE DETECTOR.

For details,  visit www.fisherlab.com

The 

PRO-TECH 

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 to 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 Research Labs, Inc.

1465 Henry Brennan Dr.

El Paso, TX 79936

Phone: 915-225-0333 ext.118

Fax: 915-225-0336

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.

NOTE TO CUSTOMERS OUTSIDE THE U.S.A.

This warranty may vary in other countries, check with your distributor for details.

Warranty does not cover shipping costs.

According to FCC part 15.21 Changes or Modifications made to this device not expressly approved by the party

responsible for compliance could void the users authority to operate this equipment.

This device complies with the FCC Part 15 Subpart B Section 15.109 Class B.

Copyright© 2014 by Fisher Research Labs, Inc.

All rights reserved, including the right to reproduce this book, or parts thereof, in any form.

Published by Fisher Research Labs, Inc.

Fisher

®

is a registered trademark of Fisher Research Labs, Inc.

www.fisherlab.com 

1465 Henry Brennan Dr., El Paso, TX 79936 • (915) 225-0333

ProTechMANUAL_MPROTECH  1/28/15  8:14 AM  Page 8

Summary of Contents for Pro-tech

Page 1: ...digging tool Comes with a durable sheath 12 in length with a 7 serrated blade LESCHE KNIFE Coil Covers Specially made to protect your coil from abrasion and damage 11 DD Ellipse Accessory Coil Cover C...

Page 2: ...h the detector 2 Do not use indoors This detector is for outdoor use only Many household appliances emit electromagnetic energy which can interfere with the detector If conducting an indoor demonstrat...

Page 3: ...Computerized Ground Balancing 16 Setting the Controls 16 Unwanted Noise 16 Sweeping the Searchcoil 16 Reading the Display 17 Target Scale 17 Operating in Discrimination Mode Ground Grab GG Computerize...

Page 4: ...chase 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...

Page 5: ...strength increases V C O improves the user s ability to interpret a target s size and depth Very weak signals for small or very deeply buried objects have the faintest volume and the lowest pitch Larg...

Page 6: ...e the PINPOINT Mode for continuous searching realize that drift will occur over time causing the detector to gain or lose sensitivity Periodic retuning of the detector is required to minimize drift re...

Page 7: ...While circling the target continue sweeping the searchcoil across the target 3 Sweep once every 30 or 40 of the circle If the tone does not change and the Target ID value is consistent as you circle t...

Page 8: ...and then reconnecting it to ensure the connector is firmly installed If you use a searchcoil cover dirt or water can accumulate inside it and movement of those materials can cause false signals while...

Page 9: ...several different sources of electrical interference present simultaneously All metal detectors generate a certain amount of internal electronic noise The PRO TECH is specifically designed to enable...

Page 10: ...from returning a properly functioning detector for repair Symptoms of electrical interference Electrical interference can cause a metal detector to chatter spontaneously to lose sensitivity for no app...

Page 11: ...distance of the object in inches from the searchcoil The Depth scale is calibrated to coin sized objects For objects other than a coin the numeric value is a relative measure of the target s depth AUD...

Page 12: ...S OF METAL DETECTING continued 2 Trash Modern trash is prevalent everywhere and you may wish to learn the Target ID readings for common items such as pop tops and aluminum cans Modern trash is also us...

Page 13: ...iscrimination setting When searching in an All Metal Mode if ground balance is properly set to cancel the ground and you sweep over a positive hot rock the rock will give a zip sound similar to that o...

Page 14: ...Wet salt and alkali 5 25 Metallic iron Very few soils in this range You are probably over metal 26 39 Very few soils in this range occasionally some saltwater beaches 40 75 Red yellow and brown iron...

Page 15: ...sive Operating Manual Guide to Metal Detecting GROUND BALANCING What is Ground Balancing Why do I need to Ground Balance All soils contain minerals Signals from ground minerals are often tens or hundr...

Page 16: ...before using your detector set it in All Metal Mode and perform the automatic ground balancing procedure Press and hold the GG button while pumping the searchcoil up and down over the ground Release...

Page 17: ...uried metal object See the section on Target Display for a more detailed explanation Iron is on the left Silver and copper metals are to the far right In an air test gold indicates right of center the...

Page 18: ...is strong This may be a large metal object Operating in Discrimination Mode continued on next page 18 PRO TECH Comprehensive Operating Manual Guide to Metal Detecting Operating in Discrimination Mode...

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