ZERA TK326 - Page 9

Scanning Head TK326 9
TK326_MAN_EXT_GB_V102
Scanning of LED’s
:
Wavelength: 450 ... 950 nm
Distance to meter LED: 25 ... 50 mm
Pulse data:
max. frequency 1000 Hz
max. rising time 20 µs
min. pulse width 100 µs
max. falling time 20 µs
min. pulse pause 400 µs
Squarewave 1:1:
max. frequency 1000 Hz
max. rising time 20 µs
max. falling time 20 µs
Squarewave 1:1, Amplitude modulation 8 kHz:
max. frequency 500 Hz
max. rising time 20 µs
max. falling time 20 µs
uncertainty of switching edge detection ± 1 µs
Rotor marks scanning
:
wavelength LED in front 450 nm
distance to rotor disk 25 ... 45 mm
uncertainty of switching edge detection ± 1 µs