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ProTechMANUAL_MPROTECH 1/8/15 5:32 PM Page 28
PRO-TECH
Comprehensive Operating Manual & Guide to Metal Detecting
CONTROL PANEL
Control Knobs:
1. OFF/ON/GAIN
a. Click right to turn on. Click left to turn off.
b. Turning the knob clockwise increases the detector's sensitivity; the higher the
sensitivity, the deeper targets will be detected, and the more likely the detector
will be to detect very small targets.
c. As you turn the knob, notice that the GAIN value at the bottom-right of the
screen displays your current sensitivity setting.
Sensitivity in DISC Mode
The left knob is labeled “GAIN” and in DISCRIMINATION Mode it alone
controls the sensitivity of the detector.
GAIN in ALL METAL Mode
In All Metal Mode, GAIN increases as you rotate the knob clockwise.
Threshold is controlled independently using the right knob.
2. DISC / ALL METAL / THRESHOLD
a. Click knob to the far-left “DISC” position and the detector enters
DISCRIMINATION Mode.
b. Click on clockwise to operate in ALL METAL Mode.
c. In ALL METAL Mode, rotate knob to increase the threshold.
Threshold values range from -40 to +40.
In ALL METAL Mode, the Threshold control can be used in two ways.
Control knobs continued on next page
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