Serviceline Industrial Sensors
Serviceline Explosion Protection

Active infrared scanner LTK2-8-HS-6000/31/115

  • Mode selectable: background suppression or evaluation
  • Mechanical adjustable detection range
  • Adjustable timer functions
  • Version for universal voltages
  • Relay output

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 or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  LTK2-8-HS-6000/31/115

Product Description
Precision sensor for extremely long detection ranges up to 6 m
General specifications
Detection range min.0 ... 500 mm by background evaluation,
350 ... 500 mm by background suppression
Detection range max.0 ... 6000 mm by background evaluation,
200 ... 6000 mm by background suppression
Light sourceIRED
Light typemodulated infrared light
Operating modeswitching between background suppression/evaluation
Diameter of the light spot150 mm at 6000 mm sensor range
Functional safety related parameters
MTTFd730 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)60 %
Indicators/operating means
Function indicatorLED green: power on
LED yellow: object detection
Control elementsSensing range setting, programming switch for time functions, time setting
Electrical specifications
Operating voltage11 ... 48 V DC / 12 ... 24 V AC
No-load supply current100 mA
Switching typelight/dark on selectable programmable , Factory setting: light on
Signal outputRelay, 1 alternator
Switching voltage240 V AC/DC
Switching current2 A
Response time100 ms
De-energized delay1200 ms
Timer functionProgrammable on/off delay, adjustable 0.1 ... 10 s
Product standardEN 60947-5-2
Compliance with standards and directives
Standard conformity
Emitted interferenceEN 61000-6-3
StandardsEN 61000-6-2 without EN 61000-4-5, EN 61000-4-11
Approvals and certificates
CE conformityyes
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP65
Connection5 m fixed cable
HousingMakrolon GV30
Optical facehardened plastic lens
Mass320 g


ECLASS 11.027270913
ECLASS 10.0.127270913
ECLASS 9.027270913
ECLASS 8.027270913
ECLASS 5.127270903
ETIM 7.0EC002550
ETIM 6.0EC002550
ETIM 5.0EC001821
UNSPSC 12.139121528

Documents: LTK2-8-HS-6000/31/115

Instruction leafletsLanguageFile TypeFile Size
Instruction leaflet / Beipackzettel ALLPDF166 KB

CAD+CAE: LTK2-8-HS-6000/31/115

CADFile TypeFile Size
3-D model / 3-D-ModellSTP126 KB
CAD Portal / CAD PortalLINK---

Approvals+Certificates: LTK2-8-HS-6000/31/115

CertificatesCertificate No.File TypeFile Size
US CA UL General PurposeE87056LINK---

Function: LTK2-8-HS-6000/31/115

Diffuse mode sensors LT(K)2 are used when people, objects, or vehicles are to be detected in a precisely defined area. The devices are extremely sturdy and resistant to mechanical strain. In background evaluation operating mode, the sensors can be used with any background. In background suppression operating mode, the background serves as a reference area. This enables highly reflective objects to be reliably detected as well. In addition, this operating mode offers an option for testing.