
Operations Manual
Page 25
c. Ground Noise - is an irregular broad noise that is difficult or
impossible to pinpoint when moving the coil over the ground.
d. If ground noise is affecting the operator“s performance, rebalance
the detector as described in the Ground Balance procedure.
5.4 Testing Procedure / Using the Test Piece
The F1A4 test piece is used to ensure that when the following test is
performed, operators can have full confidence that the detector is
working to its optimum performance. It should also be noted that under
ideal conditions (detector correctly noise cancelled and ground
balanced within a quiet background) the test piece will register a clear
signal from a greater distance from the centre of the coil.
PDF created with FinePrint pdfFactory trial version http://www.fineprint.com
Comentarios a estos manuales