GTAx™ 550 - Garrett

MAKING ADJUSTMENTSWhen you first press the POWER touchpad, yourGTAx 550 is ready to hunt, in the B (Coins) operatingmode with threshold, depth and discrimination presetat the factory. Any or all of these operating levelscan be easily changed.Whenever your detector is on it will return to thedetection mode in which it was previously beingused. Mode selection will be illuminated on thegraphic display. You can change to the other modesimply by pressing the Last Mode touchpad.In addition to the familiar Zero and Coinsdiscrimination detection modes preset at the factoryas Modes A and B, the GTAx 550 permits a userto design personal modes through use of the (+)and (-) touchpads. It is important to remember thatthese special modes of detection can be chosen atthe discretion of the individual operator. Many GTAx550 owners will never use individual modes and willhunt only in the preset B (Coins) or A (Zero) modes.29