Ultra electronic AND GTAX 550 - Manual (Page 2)

The Upper Scale of the LCD indicates the target found, and the setting levels of the Depth and
Audio modes. This scale indicates the maximum Pinpoint signal. It also shows the cursor
location for changing discrimination notches.
The Lower Scale of the LCD indicates the discrimination segments. Those that are illuminated
represent the discrimination pattern established. This scale, when pinpointing, indicates the
depth of coin-sized targets.
Battery:
Indicates the condition of the detector's batteries. Batteries should be replaced when there is
only one segment illuminated.
ASSEMBLY INSTRUCTIONS:
1. Insert the Button ends of the Spring clip into the white lower stem. This will allow the overall
stem length to be adjusted for operating comfort.
2. Attach the lower stem to the searchcoil by inserting the two washers into the stem and slip
the searchcoil onto the stem. Insert the threaded bolt through the holes and hand-tighten the
two knobs.
3. Install the upper stem to the lower and then this assembly to the GTA housing by
depressing the two buttons and coupling the stem to the housing. Adjust for the most
comfortable operating length.
4. Wrap the searchcoil cable snugly about the stem with the first turn of the cable over the
stem.
5. Insert the cable connector into the connector on the housing and hand-tighten securely.
OPERATING INSTRUCTIONS:
Lower the searchcoil to a level about one foot above the ground.
Press and release the POWER touchpad. The detector will give two (2) audio beeps, You will
then be ready to search. The Audio Threshold level is established.
NOTE: The GTAx 550 has Belltone Audio which alerts the operator with a special ringing
sound whenever a target of high conductivity such as a coin is located.
SCANNING:
Scan the searchcoil in front of you in a straight line or a flat arc about your body. Keep the coil
level to the surface at a height of about one to two inches above the ground. This is
approximately grass-top height. The scanning speed should be about one to two feet per
second.
The presence of metal will be indicated by an audio sound and a LCD cursor on the Graphic
Display. Make two or three repeated scans over the target to determine precisely the targets