Page 4 | The Minelab SD2100v2 |
b)Adjust the Balance 1 control so that no variation in volume or pitch is heard as the coil is moved up and down. The greater the change in the volume or pitch of the threshold tone as the coil is moved above the ground, the further out of adjustment the balance controls are.
c)When the detector is balanced with the Search switch in the Balance 1 position, switch to Balance 2 and, using the Balance 2 control knob, repeat the process as described above.
d)When the detector has been balanced in both positions, switch to Search and again raise and lower the coil a couple of times. There should be minimal to no deviation in the threshold as the coil is moved. The detector is now said to be ‘balanced’ or ‘ground balanced’.
e)In almost all circumstances the Search switch should be set to the central Search position when detecting. There are very few circumstances in which there is any value in changing this setting.
The function of the Search switch is to select which of the ‘channels’ the detector uses to generate signals. Each ‘channel’ is sensitive to its own range of target types and sizes and complements the other ‘channel’. When set to Search, the detector uses the best ‘channel’ for a particular target to generate the signal.
In extreme circumstances, operating with the Search switch in the Balance 1 position can help to reduce ground noise from very noisy ground. It can sometimes stabilise the Threshold which will assist in hearing faint targets in such conditions. However, when operating in Balance 1, there will be some gold nuggets which may not give a signal.
If ‘ground noise’ becomes excessive while searching, simply ground balance the detector again using the technique described above. In ground with low mineralisation, ‘ground noise’ will also be minimal and the Balance controls will need little adjustment.
