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The RIEGL LD90-4 is an economically priced, high-reliability distance sensor for industrial use "reflectorless" or with retro reflecting targets. The implemented "High Penetration" technology allows its use even under conditions of bad visibility, e.g. rain, dust, fog etc.

 Specifications   Features   Note   

Laser Product Classification

According to IEC60825-1:2007
The following clause applies for instruments delivered into the United States;
Compiles with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50. dated June 24,2007.

Data Interfaces1

Serial interface: RS232 or RS422 Baud rate 300 Bd ... 19200 Bd)

Analog Current2

4-20 mA, not galvanically isolated resolution 16 Bit, linearity 0.5% of full scale

Analog Voltage3

0-10 V source resistance 1 kOhm resolution 12 Bit, linearity 4% of full scale

Switching Output4

2 x PNP transistor driver
Built-in thermal and short-circuit protection

Switching current 200 mA max.

Switching voltage = supply voltage

Power Supply

Voltage Range: 11-28 Volts DC
Voltage Ripple: ≤ 1 Vpp built-in protecting circuitry against over & under voltage and reverse polarity power consumption approx. 4 Watts

Temperature Range

-10ºC to +50ºC (Operation)
-20ºC to +60ºC (Storage)


Aluminum, colorless anodized, front and rear side rubber armored

Main Dimensions (L x W x H)

200 x 120 x 70 mm


1.6 kg

Protection Class



This device conforms to the directive 2004/108/EC of the European Parliament and of the Council concerning electromagnetic compatibility and is therefore marked with the CE sign.
1 Selectable via serial interface
2 Operating range selectable via serial interface
3 Operating range selectable via serial interface
4 Switching points adjustable via serial interface


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