Table of specifications

Technology:	laser scanner, time-of-flight measurement
Measurement range:	max 65 m, 10 m @ 2% remission factor, 30 m @ 10% remission factor
Number of planes:	LZR®-U920: max. 4*; LZR®-U921: 1
Number of points/plane:	max. 274*
Rotating speed:	900 turns/min
Scanning frequency:	LZR®-U920: 15 Hz; LZR®-U921: 60 Hz
Remission factor:	> 2 %
Laser emission characteristics:	wavelength 905 nm; max. output pulse power 75 W (CLASS 1) wavelength 650 nm; max. output CW power 3 mW (CLASS 3R)
Supply voltage:	10-35 V DC @ sensor side
Power consumption:	< 5 W
Peak current at power-on:	1.8 A (max. 80 ms @ 35 V)
Serial communication:	see AN LZR®-U920/-U921 Protocol (available for download on our website)
Type	asynchronous
Interface	RS 485
Communication mode	half-duplex
Transmission speed	460800 bit/sec (max: 921600 bit/sec)
Topology	point to point
Symbol coding	1 start bit, 1stop bit, no parity bit
File type	8 bits
Cable length:	3 m
Input:	1 optocoupler (galvanic isolated - polarity free)
Max. contact voltage:	30 V DC (over-voltage protected)
Voltage threshold:	Log. H: >8 V DC; Log. L: <3 V DC
LED-signal:	2 bi-coloured LEDs: function status; 2 bi-coloured LEDs: function status;
Dimensions:	125 mm (D) x 93 mm (W) x 76 mm (H)
Material:	PC/ASA
Colour:	black
Protection degree:	IP65
Temperature range:	-30 °C to +60 °C if powered; -10 °C to +60 °C unpowered
Humidity:	0-95 % non-condensing
Vibrations:	< 2 G
Pollution on front screens:	max. 30 %; homogenous

Standard RS485 bus communication (unidirectional or bidirectional).
* These parameters can be configured via the RS 485 communication interface.
For more information on the existing options, see AN LZR®-U920/-U921 Protocol.

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