ACCURACY/CALIBRATION
MAXIMIZING ACCURACY
The sensitivity of the unit can be pin-pointed to the exact place of pipes, cables or battens and
studs. To do this, sweep unit across the area in question, with light and buzzer sounding. After each
sweep, gradually turn the adjusting dial until light and buzzer are no longer activated. Gently
reverse dial before each subsequent sweep, until light and buzzer come on at the location of
hidden pipes/cable or batten or stud.
UNIT ADJUSTMENT
A small screwdriver is provided which is located at the underside
of battery compartment cover (fig.10). Do not use metal
screwdriver.
METAL/VOLTAGE DETECTION ADJUSTMENT:
1. Turn the blue/voltage adjusting dial to midway of full travel.
2. Place selector switch to metal/voltage detector position.
3. Turn the trimmer using the small screwdriver. The screwdriver
must be fully inserted to approximately 3mm from the shoulder
on the screwdriver, to the detector housing.
4. If the GREEN LED is on, slowly turn the trimmer CLOCKWISE until the RED LED and BUZZER
just come on. Slowly turn back the trimmer until the GREEN LED just comes on and BUZZER
ceases. Now the unit is correctly adjusted.
5. If the RED LED and BUZZER come on, slowly turn the trimmer ANTICLOCKWISE until the
GREEN LED just goes on and BUZZER ceases. The unit is now correctly adjusted.
6. Warning: The maximum movement of the trimmer is only
3
⁄
4
of a turn. Attempting to turn any
further may damage the unit.
STUD DETECTION ADJUSTMENT:
1. Turn the blue stud adjusting dial to midway of full travel.
2. Move selector switch to STUD DETECTOR position.
3. Hold the stud face over a known stud or batten.
4. If the RED LED is on and the buzzer sounds, slowly turn the trimmer CLOCKWISE until the RED
LED just goes off and the GREEN LED just comes on and the buzzer changes to a lower pitch.
(The GREEN LED may only come on briefly in which case very slight adjustments anticlockwise
and clockwise may be necessary until only the GREEN light is on). The unit is now correctly
adjusted. If no LED’s are on, slowly turn the trimmer ANTICLOCKWISE until the GREEN LED just
comes on.
5.
WARNING:
The maximum movement of the trimmer is only
3
⁄
4
of a turn. Attempting to turn any
further may damage the unit.
REMEMBER TO SWITCH OFF THE UNIT
WHEN NOT IN USE (MOVE SELECTOR
SWITCH TO THE MIDDLE).
Fig.10.
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