Serviceline Industrial Sensors
Serviceline Explosion Protection

Diffuse sensor with measurement core technology RL31-8-H-800-RT-IO/59/73c/136

  • Cost-optimized series for standard tasks
  • Sensing-by-ranging functionality
  • IO-link interface for service and process data
  • PowerBeam transmitter LED
  • Large adjustment range can be precisely defined
  • Low sensitivity to target color
  • Clear and functional display concept for the operating modes

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH, also apply to Pepperl+Fuchs AG.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  RL31-8-H-800-RT-IO/59/73c/136

Product Description
Diffuse sensor with measurement core technology, large housing design, background suppression and 3 more adjustable operating modes, IO-Link interface, 800 mm adjustable detection range, red light, 2 push-pull outputs, M12 plug
General specifications
Detection range50 ... 800 mm
Light sourceLED
Light typemodulated visible red light
Black/White difference (6 %/90 %)< 5 %
Diameter of the light spotapprox. 25 mm at a distance of 800 mm
Angle of divergenceapprox. 2 °
Functional safety related parameters
MTTFd580 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Indicators/operating means
Function indicatorLED yellow ; ON: object inside the sensing range ; OFF: object outside the sensing range
Control elementsSensing range adjuster
Electrical specifications
Operating voltage10 ... 30 V DC , class 2
Interface typeIO-Link
ProtocolIO-Link V1.0
Switching typedark on
Signal output2 push-pull (4 in 1) outputs, short-circuit protected, reverse polarity protected
Compliance with standards and directives
Directive conformityEMC Directive 2004/108/EC
Standard conformity
Product standardEN 60947-5-2:2007
IEC 60947-5-2:2007
Mechanical specifications
Degree of protectionIP67
Connection4-pin, M12 x 1 connector
Optical facePMMA

Approvals+Certificates: RL31-8-H-800-RT-IO/59/73c/136

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of Conformity / EU-KonformitätserklärungDOC-1809BPDF185 KB

Software: RL31-8-H-800-RT-IO/59/73c/136

Device type managersRelease InfoFile TypeFile Size
IODD for RL31-8-H / IODD für RL31-8-HV1.00 / 2010-07-06ZIP71 KB

Associated Products: RL31-8-H-800-RT-IO/59/73c/136


Female cordset, M12, 4-pin, PUR cablefa

Female cordset, M12, 4-pin, PUR cablefa
Universal DTM host platform, For all DTMs of Pepperl+Fuchs, Approved FDT/DTM technology, Free of charge, Internet download possiblepa
Software for the integration of IODDs in a frame application (e. g. PACTware)fa
Communication DTM for use of IO-Link-Masterfa
Mounting bracket fa
Mounting bracket narrowfa
Mounting bracket narrowfa
Mounting aid for round steel ø 12 mm or sheet 1.5 mm ... 3 mmfa
Mounting bracket for mounting on flat surfaces with 2 M4 screwsfa
Stainless steel mounting bracket with adjustable half clamp on the sidefa
IODD for communication with RL31-8-H-IO-Link sensorsfa
IO-Link master, supply via USB port or separate power supply, LED indicators, M12 plug for sensor connectionfa

Function: RL31-8-H-800-RT-IO/59/73c/136

The measuring photoelectric sensor combines the benefits of the triangulation principle with the measuring functionality of a distance sensor. The integrated measuring principle enables a variety of switching functions in one device, a large sensing range up to 800 mm and a small BW/WB difference up to the final detection range.

The sensor is equipped with an IO-Link interface, through which the measuring principle is optimized to the requirements of the relevant application.