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Fisher Gemini-3 User Manual

Fisher Gemini-3
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Gemini-3
Operating Manual
2-Box Metal and Mineral Detector
for Deep Search and Cache Locating
8703520000 Rev.3 072414
Q U A L I T Y
Fisher detectors are renowned for their quality.
Each detector is hand crafted in the USA with pride
P E R F O R M A N C E
The worldwide underground utility industry relies on Fisher
®
.
Our instruments are durable, dependable, and locate deeper.
R E P U T A T I O N
Fisher produced the first patented metal detector in 1931. For
over 80 years, the Fisher logo has been a mark of excellence.
5 - YEAR LIMITED WARRANTY
Register your warranty on-line for a chance to win a
FREE DETECTOR.
For details, visit www.sherlab.com
Fisher
®
believes in the products we produce and backs this
belief with a 5 year limited warranty.
Proof of purchase is required to make a claim under this warranty.
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.
S E R V I C E
Fisher is committed to providing you, our valued customer, with
superior service. Each and every instrument is rigidly tested and
carefully inspected during assembly and before shipment.
FISHER RESEARCH LABORATORY
1465 Henry Brennan, El Paso, Texas 79936
Tel 915.225.0333 Fax 915.225.0336
www.fisherlab.com email:info@fisherlab.com
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 user’s authority to operate this equipment.
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Fisher Gemini-3 Specifications

General IconGeneral
BrandFisher
ModelGemini-3
CategoryMetal Detector
LanguageEnglish

Summary

Specifications

Basic Theory of Operation

Transmitter Operation

Battery Replacement Guide

Receiver Overview

Searching Modes

Narrow Scan Inductive Search Setup

Instructions for assembling and setting up the narrow scan inductive search mode.

Searching Operation

Tuning for Search

Procedure to balance the unit and achieve a null for optimal searching performance.

Search Operating Procedure

Walking pattern and target acquisition using the tuned detector.

Tracing Operation

Tuning for Tracing

Adjusting receiver sensitivity to eliminate air coupling for accurate tracing.

Searching - Wide Scan

Tracing - Inductive Trace

Tracing - Conductive Trace

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