Pepperl+Fuchs LA28/LK28-Z-F1/31/116 Thru-beam sensor

Pepperl+Fuchs LA28/LK28-Z-F1/31/116
Item Number: LA28/LK28-Z-F1/31/116
  • 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
  • Version with red light
  • Version with relay output
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Total price: 0.00
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Timer functionON delay (GAN), OFF delay (GAB), one shot (IAB), ON delay-OFF delay (GAN-GAB), programmable
adjustment range 0.1 ...10 s
Housing height88 mm
EAC conformityTR CU 020/2011
TR CU 004/2011
Storage temperature-40 ... 75 В°C (-40 ... 167 В°F)
Alignment aidLED red (in receiver lens)
illuminated constantly: beam is interrupted,
flashes: reaching switching point,
off: sufficient stability control
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
Function indicatorLED yellow:
1. LED lit constantly: signal > 2 x switching point (function reserve)
2. LED flashes: signal between 1 x switching point and 2 x switching point
3. LED off: signal < switching point
Switching typelight/dark on, switchable . (selectable, light/dark switching is only activated if the receiver has 'dark on' selected.)
Switching powerDC: max. 50 W AC: max. 500 VA
Housing depth65.5 mm
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.
The protection class 2 is only valid when the terminal compartment is closed.
Diameter of the light spotapprox. 1.3 m at 65 m
Operating voltage12 ... 240 V AC/DC
Degree of protectionIP67
Control elementssensitivity adjustment (Adjustment to < 25% of the effective operating range) , Light-on/dark-on changeover switch
Response time20 ms
Switching frequency25 Hz
Ambient temperature-40 ... 60 В°C (-40 ... 140 В°F)
Switching currentmax. 2 A
Product standardEN 60947-5-2
Ambient light limit50000 Lux
MTTFd490 a
CCC approvalCertified by China Compulsory Certification (CCC)
Diagnostic Coverage (DC)0 %
Switching voltagemax. 250 V AC/DC
Mission Time (TM)20 a
Threshold detection range90 m
Housing width25.8 mm
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.
Signal outputRelay, 1 alternator
Mass200 g (emitter and receiver)
Power consumption 3.5 VA
Operation indicatorLED green
Light sourceLED
Light typemodulated visible red light
Angle of divergenceEmitter 1.2В°,
Receiver 5В°
Transmitter frequencyF1 = 25 kHz
Effective detection range0 ... 65 m


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