20
TURNING ON THE DETECTOR
There are many metallic objects inside the 
house (e.g. nails in the floor, reinforcing in 
the walls) that will result in overloading the 
detector’s electronics. There may also be 
interference from TV sets and other household 
appliances. In this environment the detector 
may give erratic performance and numerous 
false signals. 
If the detector emits an overload sound and 
displays OL (Error Messages, p. 66) move the coil 
away from the source of the overload.
It is best to only turn the detector on  
when outside, away from sources of  
electromagnetic disturbance.
 Press Power 
 
  A short start up sequence will display and a 
tune will be heard.
  Once on, the detector will be in automatic 
detection. There will be no numeric reading 
until a metal object is detected.
Overloading is not harmful to the 
detectors electronics.
Many of the screen pictures in this manual 
that refer to both models show the 
X‑TERRA 505 display only.