Velleman projects K7102 Assembly instructions - Manual (Page 8)

8
Test
1. Connect a 9V battery to the battery holder.
2. Go to a place where NO metal object is known to be in the vicinity.
3. Turn preset RV1 fully clockwise.
4. Turn RV2 fully anti-clockwise.
5. Depress the push button and hold it in during the final adjustments.
6. Turn RV1 anti-clockwise until the LED goes out.
 All further remaining adjustments are now concerned with RV2 only.
To set to maximum sensitivity: turn RV2 until the LED is weakly lit. When the detector now comes into the
vicinity of a metal object, the LED will be more brightly lit. This gives an indication of the distance and/or the
size of the metal object.
11. Test & final adjustments