Serviceline
Serviceline Industrial Sensors
Serviceline Explosion Protection

Fire protection thru-beam sensor LA28/LK28-FC-Z/31/116

LA28/LK28-FC-Z/31/116
  • Compact fire protection photoelectric sensor for safety devices on fire barriers
  • Approval in accordance with VdS Test Report FSA and externally monitored manufacture (Ü Symbol)
  • Not sensitive to ambient light, even with switched energy saving lamps

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  LA28/LK28-FC-Z/31/116

Product Description
Compact fire protection photoelectric sensor
General specifications
Effective detection range0 ... 10 m
Threshold detection range10 m
Light sourceLED, 660 nm and IRED, 880 nm
Light typemodulated visible red light and modulated infrared light
Alignment aidLED red (in receiver lens)
illuminated constantly: beam is interrupted,
flashes: reaching switching point,
off: sufficient stability control
Diameter of the light spotapprox. 0.2 m at 10 m
Angle of divergenceEmitter 1.2°,
Receiver 5°
Ambient light limit50000 Lux
Indicators/operating means
Operation indicatorLED green
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
Control elementsLight-on/dark-on changeover switch ; Time adjuster
Electrical specifications
Operating voltage12 ... 240 V AC/DC
Power consumption≤ 3.5 VA
Output
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 frequency25 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
Standard conformity
StandardsEN 60947-5-2
smoke insensitive up to 2 dB/m ( EN 54-12 )
Approvals and certificates
EAC conformityTR CU 020/2011
TR CU 004/2011
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.
CCC approvalCertified by China Compulsory Certification (CCC)
ApprovalsVdS/DIBt certificate of compliance No. 25021
Ambient conditions
Ambient temperature-40 ... 60 °C (-40 ... 140 °F)
Storage temperature-40 ... 75 °C (-40 ... 167 °F)
Relative humidity30% ... 85%   non-condensing ; Non-icing
Mechanical specifications
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)

Approvals+Certificates: LA28/LK28-FC-Z/31/116

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-0068APDF106 KB
Certificates
/cert/cert1404a.pdfReg.-Nr. 25021PDF254 KB
Canada USA UL Ordinary Location20170307-E87056PDF403 KB
China CQC CCC2011010305467440PDF2156 KB

Associated Products: LA28/LK28-FC-Z/31/116

Accessories
Mounting aid for round steel ø 12 mm or sheet 1.5 mm ... 3 mmfa
Mounting bracket fa
Mounting bracket fa