Omega 8500 User Manual

OWNER’S MANUAL
Also available
with 11”DD coil
(Item# OMEGA-11DD)
If you do not have prior experience with
a metal detector, we strongly
recommend you:
1) Adjust the Sensitivity to a
low setting in the event of
false signals. Always begin
use at a reduced sensitivity level.
Expect chatter or internal noise at high
sensitivity.
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
demonstration, turn the sensitivity down and keep
the searchcoil away from appliances such as
computers, televisions and microwave ovens. If
your detector beeps erratically, turn off appliances
and lights.
Also keep the searchcoil away from
objects containing metal, such as
floors and walls.
3) Use a 9-volt ALKALINE
battery only. Do not use Heavy
Duty Batteries.

Omega 8500 Specifications

General

Technology	VLF (Very Low Frequency)
Frequency	7.8 kHz
Operating Frequency	7.8 kHz
Sensitivity Levels	Adjustable
Weight	1.3 kg
Waterproof	Search coil only
Operating Modes	All Metal
Target ID	0-99

Summary

Assembly

Assembling the Detector

Step-by-step guide for assembling the metal detector components.

Quick-Start Demonstration

Return To Factory Default

Steps to reset the detector to its original factory default settings.

The Basics of Metal Detecting

Ground Minerals

Explanation of how ground minerals interfere with metal detection.

Operation and Controls

Display and Controls

Detailed explanation of the detector's display screen and control buttons/knobs.

ON/OFF/GAIN

How to turn the detector on and adjust the gain setting.

GND GRAB

Instructions for performing automatic ground balancing using the GND GRAB pad.

PINPOINT

How to use the PINPOINT function to locate and measure target depth.

DISC/AM/THRESH

How to enter Disc or AM/Disc mode and adjust the threshold.

MENU/QUICKSWITCH

Using the MENU/QUICKSWITCH pad to access menus and switch modes.

Menu Items

DISC LVL

Explanation of the Discrimination Level (DISC LVL) setting and its effects.

NOTCH

Description of the NOTCH function for including or excluding target categories.

GROUND

How to manually adjust the ground balance setting in All Metal Mode.

TONES

Description of the 5 pre-set tone variations for Discrimination Mode.

RESET Function

Procedure to restore the detector to its original factory default settings.

Ground Balancing

Why Do I Need to Ground Balance?

Explanation of why ground balancing is essential for accurate detection.

How to Ground Balance your Detector

Detailed instructions on how to perform ground balancing on the detector.

Ground Error

Explanation of the Ground Error window and its meaning.

Ground Adjustment Chart

A chart detailing ground adjustment based on error indicators and sounds.

Depth and Target Display

Reading the Display

Guide to interpreting the information shown on the Liquid Crystal Display (LCD).

Depth Indicator

Explanation of the depth indicator calibrated for coin-sized objects.

Target-ID Indicators (TID)

Details on the target identification (TID) indicators in Discrimination and All Metal modes.

Target Readout

A table listing common target values and their corresponding possible objects.

Search Techniques (Motion Modes)

Target Verification

Steps for verifying a detected target's identification through circling.

Coil Movement

Guidance on maintaining proper coil movement and levelness during swinging.

Pinpointing Process in Motion Modes

Steps for pinpointing a target while using motion modes.

Target Pinpointing (Static Search)

Pinpoint as Follows

Step-by-step instructions for performing pinpointing in static search.