Sensor Data For Non-Ferrous (Fe) Material - Roland udk20 Manual

ROLAND
Page 14

2.3 Sensor data for non-ferrous (FE) material

The amount of eddy current generated and the corresponding energy absorption is directly related to the
electrical conductivity. High values of electrical conductivity and the corresponding strong eddy currents
reduce the controllable sheet thickness.
The eddy current principle is more forgiving with regard to air gaps than the electromagnetic principle.
However, for most reliable performance precaution should be taken to avoid air gaps between sensor and
sheet. The permissible air gaps between first and second sheet can be slightly higher than for steel.
Note: The system reaction time for non-ferrous materials is constant at 85
milliseconds. This applies for measurements with 1 sensor as well as for measurements
with 2 sensors (in sequencer mode).
ROLAND ELECTRONIC GMBH · Otto-Maurer-Str. 17 · D-75210 Keltern · Telefon (0049) (07236) 9392-0 · Telefax (0049) (07236) 9392-33
OPERATING INSTRUCTIONS
DOUBLE SHEET DETECTOR R1000 UDK20
Material Conductivity
(MS)
Austenite 1,41
Bronze
Zinc 16,3
AL-Alloy 18,2
AL-Alloy 25,2
AL 34,2
CU-Alloy 43,0
CU 57,5
Table: Max. sheet thickness for non-ferrous material (selection)
Max. thickness
f. single sheet
(mm)
4,0
8,5 4,0
4,0
4,0
4,0
4,0
3,5
3,0
B0048991