Duramaxx 10000503 Manual page 19

Rotate the DISC/TONE knob,set it in the position of "9:00" to "10:00". Sweeping the iron
nail about 2-3 inches (5-8cm) above the centre of the search coil,the unit won't respond (the
speaker will be silent and the pointer won't swing). While sweeping other metal samples,
such as 5¢, pull tab, 1¢, 25¢, the unit will respond (the speaker will sound a "DI"tone,and
the pointer will swing). It means that the iron is eliminated.
Eliminate nickel coin, pull tab:
Set the DISC/TONE knob to the position of "11:00" to "12:00".
Sweeping the 5¢ and pull tab about 2-3 inches(5-8cm) above the centre of the search coil
respectively, the unit won't respond (the speaker is silent and the pointer won't swing). While
sweeping the 1¢ and 25¢, the unit will all respond. It means that iron 5¢ and pull tab are
eliminated.
19