Serviceline Industrial Sensors
Serviceline Explosion Protection

Active infrared scanner LT2-8-HS-2000/49/105

  • Mode selectable: background suppression or evaluation
  • Mechanical adjustable detection range
  • Adjustable timer functions
  • DC voltage version
  • Version with test input

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  LT2-8-HS-2000/49/105

Product Description
Precision sensor for long detection ranges up to 2 m
General specifications
Detection range min.0 ... 500 mm by background evaluation,
350 ... 500 mm by background suppression
Detection range max.0 ... 2000 mm by background evaluation,
350 ... 2500 mm by background suppression
Light sourceIRED
Light typemodulated infrared light
Operating modeswitching between background suppression/evaluation
Diameter of the light spot50 mm at 2000 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 voltage15 ... 35 V DC
Ripple10 %
No-load supply current100 mA
Test inputemitter deactivation with +Ub
Switching typelight/dark on selectable programmable , Factory setting: light on
Signal output1 NPN, 1 PNP, short-circuit protected, open collectors
Switching voltage35 V DC
Switching current200 mA
Response time50 ms
De-energized delay100 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-pin plastic M12 connector without cable
HousingMakrolon GV30
Optical facehardened plastic lens
Mass320 g

CAD+CAE: LT2-8-HS-2000/49/105

CADFile TypeFile Size
3-D model in IGS format / 3-D-Modell im IGS-FormatIGS180 KB
3-D model in STP format / 3-D-Modell im STP-FormatSTP126 KB
CAD Portal / CAD PortalLINK---

Approvals+Certificates: LT2-8-HS-2000/49/105

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-2305APDF85 KB
US CA UL General PurposeE87056LINK---

Associated Products: LT2-8-HS-2000/49/105


Female cordset, M12, 5-pin, PUR cablefa
Mounting plate for sensors in the LT and FLT seriesfa

Function: LT2-8-HS-2000/49/105

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.