AQ1B Compact Underwater Metal Detector
User Manual
Note: The Set Audio control is capable of 10 full 360 degree rotations. DO
NOT try to turn this control past the stop point in either direction as
irreparable damage will result to the control.
6.
Test the operation of the detector by scanning the loop over metal objects e.g.
a coin, keys or any convenient metallic object. The audio note will rise rapidly
reaching a maximum pitch when the object is centred on the loop axis.
7.
An additional check can be made on a piece of buried metal. Scan the loop from
side to side and locate the position of maximum tone. Repeat the scan in the
forward and backward directions. The point where the audio is at a maximum on
both scans is where the object lies. Alternatively, note the initial threshold of
change in tone for each scan to define the detection boundary, the object will lie in
the centre of the bounded area.
8.
Check the detector on various sizes and shapes of both ferrous and non ferrous
metal objects to get a ‘feel’ as to how it responds on different targets.
9.
The 6-position ‘REJECT’ control, when set at its lowest setting (MIN – 1
st
position clockwise from the OFF position), will give maximum sensitivity to
small gold rings and thin section foils. As the setting is increased by turning the
control clockwise from settings 2 through 6, the detector will ‘reject’ signals from
silver paper, ring pulls and other low mass non ferrous objects.
NOTE: DO NOT TRY TO TURN THE REJECT SWITCH PAST THE 6
TH
POSITION AS PERMANENT DAMAGE WILL OCCUR. THE
SWITCH WILL STOP AT THE “12’OCLOCK” POSITION – IT WILL
NOT TURN ALL THE WAY TO THE “MAX” MARKING ON THE
TOP LABEL OF PRE-2011 CONTROL UNITS.
10.
Having performed the above checks, switch the unit to OFF. The
Aquapulse
1B-Compact
is now ready for use on land or underwater.
Underwater Operation
1.
The control unit of the detector can be worn or carried in a number of ways,
the choice will be influenced by which of the sense head variants is being
utilised. The most obvious choice is worn on the waist secured by the quick
release buckle, however, if the 38cm (15”) loop is being used the control unit
can be fitted to the lower cup of the “armsaver” section. Other options include
strapping to the upper arm, clipping to any suitable position on the diver or
attached to a container that may be used for collecting detected items. When
the armsaver is being used one of the small straps should retain the control
unit, whilst the other should act as a brace for the forearm in the upper cup.
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