3-6
Metal Detector
METARIDDER
3.3
Sensor Sensitivity (threshold) and Sensor Signal (white noise)
Adjustment.
This section describes sensor sensitivity (threshold) and sensor signal (white noise) adjusting
procedure.
For relationship between sensor sensitivity and sensor signal, refer to the following figure.
Important
For the following adjustment, an oscilloscope is required.
Important
After adjustment, be sure to drop a test piece to check if it is detected and
discharged.
(*1) The test piece is optionally available.
Sensor signal: Small
Sensor signal: Large
Sensor sensitivity: High
Sensor sensitivity: Low
SENS adjusting dial
LEVEL adjusting dial
Important
As factory-settings, the SENS adjusting dial
(10
–
0) has been adjusted at the maximum
sensitivity, and the LEVEL adjusting dial (5
–
0) has been adjusted at approx. 100 mV.
Metal piece (foreign
object) detection
Sensor sensitivity (SENS) * Changes depending on sensor
type and operating condition.
Sensor signal (Level)
(Factory-setting: approx.
100 mV)
Conceptual image of oscilloscope
Detection value
0 V
