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LA28/LK28-LAS-F1-7675 Thru-beam sensor (pair)

Key Benefits at a Glance

  • Universal series with highly versatile fields of use
  • Resistant against noise: reliable operation under all conditions
  • Highly visible LED as alignment aid in receiver optics
  • Programmable time function GAN, GAB, IAB as well as GAN-IAB and GAN-GAB as double function
  • Laser version for long ranges

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Product photo: Thru-beam sensor (pair) LA28/LK28-LAS-F1-7675
Dimensions: Thru-beam sensor (pair) LA28/LK28-LAS-F1-7675
Product photo: Thru-beam sensor (pair) LA28/LK28-LAS-F1-7675
Dimensions: Thru-beam sensor (pair) LA28/LK28-LAS-F1-7675
Product Compliance: USA - cULus
Product Compliance: China – CCC
Product Compliance: EU - protection class II
Product Compliance: Europe – CE
Warning
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.

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DatasheetClassificationProduct DocumentationDesign / SimulationApprovalsRelated Products

Technical data of LA28/LK28-LAS-F1-7675

Universal thru-beam sensor, large housing design, 120 m detection range, red laser light, laser class 2, 25 kHz transmission frequency, light/dark on, AC version, relay output, timer function, terminal compartment
EmitterLA28-LAS-F1-7675
ReceiverLK28-LAS-F1-Z-7675
Effective detection range0 ... 120 m
Threshold detection range150 m
Light sourcelaser diode
Light typemodulated visible red light
Laser nominal ratings
NoteLASER LIGHT , DO NOT STARE INTO BEAM
Laser class2
Wave length650 nm
Beam divergence< 4 mrad
Pulse length20 µs
Repetition rate25 kHz
max. pulse energy18 nJ
Alignment aidLED red (in receiver lens)
illuminated constantly: beam is interrupted,
flashes: reaching switching point,
off: sufficient operating reserve
Diameter of the light spotApprox. 20 mm at 5 m, approx. 75 mm x 300 mm at 70 m horizontal in relation to the housing axis
Opening angleEmitter: 0.23 °
Receiver: 5 °
Ambient light limit50000 Lux
MTTFd440 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Operation indicatorLED green
Function indicatorLED yellow:
1. LED lit constantly: signal > 2 x switching point (operating reserve)
2. LED flashes: signal between 1 x switching point and 2 x switching point
3. LED off: signal < switching point
Control elementssensitivity adjustment (Adjustment to < 25% of the effective operating range) , Light-on/dark-on changeover switch
Operating voltageUB12 ... 240 V AC/DC
Power consumptionP0≤ 3.5 VA
Switching typelight/dark on, switchable . (selectable, light/dark switching is only activated if the receiver has 'dark on' selected.)
Signal outputRelay, 1 alternator
Switching voltagemax. 250 V AC/DC
Switching currentmax. 2 A
Switching powerDC: max. 50 W AC: max. 500 VA
Switching frequencyf25 Hz
Response time20 ms
Timer functionON delay (GAN), OFF delay (GAB), one shot (IAB), ON delay-OFF delay (GAN-GAB), programmable
adjustment range 0.1 ...10 s
Product standardEN 60947-5-2
Laser safetyEN 60825-1
Protection classII, rated insulation voltage ≤ 250 V AC with pollution degree 1-2 according to IEC 60664-1 Output circuit insulated from control circuit in accordance with IEC 61140.
Caution!
The protection class 2 is only valid when the terminal compartment is closed.
UL approvalcULus Listed
Caution: This equipment is considered as open-type equipment. It must be mounted within an enclosure, that is suitably designed for protection against internal fire and personal injury resulting from accessibility to live parts according UL 508.
CCC approvalCertified by China Compulsory Certification (CCC)
FDA approvalIEC 60825-1:2007 Complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated June 24, 2007
Ambient temperature0 ... 40 °C (32 ... 104 °F)
Storage temperature-40 ... 60 °C (-40 ... 140 °F)
Degree of protectionIP67
Connectionterminal compartment with 8 spring-loaded terminals for wire cross section 0.5 ... 1.5 mm2 , Insulation stripping 7.5 ... 8.5 mm , M16 x 1.5 cable gland
Material
HousingPlastic ABS
Optical facePlastic pane
Mass200 g (emitter and receiver)
Dimensions
Height88 mm
Width25.8 mm
Depth65.5 mm
General Notes