Minelab EQUINOX 900 - Iron Bias (Advanced Setting); Adjust the Iron Bias

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CONTENTS
Iron Bias (Advanced Setting)
Iron Bias allows the detector to correctly
classify large or complex ferrous targets (e�g�
rusty nails or crown bottle caps) as ferrous so
that they are more easily rejected�
Iron Bias is only available when the operating frequency is
set to Multi�
Iron Bias adjustment is local; only the current Search Mode
Profile is affected by changes to this setting�
EQUINOX 900 Iron Bias ranges from 0 to 9�
EQUINOX 700 Iron Bias ranges from 0 to 3�
Note: For EQUINOX 600 and 800 users, be aware that Iron
Bias settings are not identically configured and named in
the 700 and 900 models�
HOW IRON BIAS WORKS
All ferrous targets produce a combination of ferrous and
non-ferrous responses� Large ferrous targets can present
an even stronger non-ferrous response� Adjacent ferrous
and non-ferrous targets can produce a similar response�
CHOOSING AN IRON BIAS SETTING
Set the Iron Bias Setting to suit the type of targets you
want to detect or ignore�
Lower Iron Bias Settings
A lower Iron Bias setting (0–4 on EQUINOX 900, or 0–2
on EQUINOX 700) is recommended In areas where you do
not want to miss any non-ferrous targets amongst iron
trash, however more ferrous targets will be detected and
misidentified as desirable non-ferrous targets�
When using a lower Iron Bias setting, detecting in
All Metal Mode is recommended to avoid missing any
desirable targets�
Higher Iron Bias Settings
A higher Iron Bias setting (5–9 on EQUINOX 900, or 3 on
EQUINOX 700) is recommended in environments with dense
iron trash, or for rejecting crown bottle caps�
When using a higher Iron Bias setting, detecting using a
ferrous-masking discrimination pattern is recommended to
mask as many ferrous detections as possible�
ADJUST THE IRON BIAS
The Iron Bias Setting provides tone and Target ID response
adjustment for a wide range of ferrous targets�
1. Press the Settings button to navigate to the Recovery
Speed setting�
2. Long-press (2 seconds) the Settings button to select
the Iron Bias Advanced Setting� 'FE' will appear on the
Frequency Display�
(2 Seconds)
3. Use the Minus (–) and Plus (+) buttons to adjust the
Iron Bias setting� Adjustments are automatically saved�
EQUINOX 700/900 Iron Bias Setting Equivalents
The following shows the equivalent Iron Bias settings
between the two models� EQUINOX 700 has fewer
adjustment increments than the EQUINOX 900�
EQUINOX 900 0 1 2 3 4 5 6 7 8 9
EQUINOX 700 0 1 2 3