Minelab F3 COMPACT Service Manual page 11

_______________________________________________________________________________________________________________________
h. LED Test. This test confirms the visual detection indicator (LEDs) can be enabled and
operate correctly. To conduct the test:
Turn on the detector.
•
Pass the coil over a metal object and check no LEDs are turned on.
•
Press and hold the LED button for two (2) seconds then release it, check that a single LED
•
is turned on when no metal objects are near the coil.
Pass the coil over a metal object and check that an increasing number of LEDs illuminate
•
as the detection tone increases in volume.
Check that pressing and releasing the LED button toggles the LEDs on and off.
•
i. Battery Level Test. This test ensures that battery level indicator is operational, and is
conducted as follows:
Turn the detector on.
•
Press and hold the LED button then press and release the Noise Cancel button and then
•
release the LED button.
Confirm a series of LEDs illuminate indicating the level of battery power remaining.
•
After three (3) seconds the battery level indicator will extinguish and normal operation
•
will resume.
j. Sensitivity Control Test. This test confirms the sensitivity control allows the operator to
make adjustments to the sensitivity of the F3 COMPACT. The test is conducted as follows:
Set the sensitivity to the default position 4.
•
Turn on the detector.
•
Conduct the test piece test (refer to Section 2.2.k). Check that a faint but clear audio
•
tone is heard and that more than one LED illuminates.
Decrease the sensitivity of the F3 COMPACT by rotating the sensitivity knob counter
•
clockwise to position 2. A single low pitched beep will be heard to prompt the operator
that the sensitivity is being decreased.
Figure 7: Connecting the Earset
11
F3 COMPACT Service Manual