Light Curtains

Safety light curtains are also known as safety light barriers or safety light screens. These optoelectronic devices are used to detect people present in the vicinity of moving machinery. Light curtains can be used as an alternative to mechanical barriers and other forms of traditional machine guarding. Set of light curtains contains transmitter head and receiver head. A transmitter generates an infra-red light between the two heads which acts as a detection zone. A movement detected within the detection zone initials the machine stopping procedure and automatically disconnect all hazardous machinery. To reactivate the machinery, an operator has to press reset button that is positioned outside of the danger area. Some models are equipped with an auto-reset option that automatically starts machinery once the detection zone is free of obstacles. A response time of all light curtains is just a fraction of a second, it means that no other barrier type can compare to that.

Selecting the right light curtains
Maximum scanning distance and beam resolution are 2 important attributes that determine the right device for you. A distance between transmitter and receiver can be various from 0 to 20m and the choice depends on the type of machinery that is used in conjunction with the curtain.
Beam resolution determines detection capability, light curtains with 14 mm beam resolution are able to detect small body parts such as a finger, 20 mm ones are suitable for palm detection. Beam resolution of 20 mm and above are ideal for hand, head or full body detection. Typical beam resolution values are between 14mm to even 70 mm.
The physical size of curtains is also important. Some model can be small as hand but the other ones are even 2.5 m long.

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Description Price Range Series Beam Resolution Component Type Safety Type SIL IEC 61508 PL EN ISO 13849-1 Number of Beams Protective Height Minimum Scanning Distance Maximum Scanning Distance Maximum Response Time Supply Voltage Application
RS Stock No. 182-9583
Mfr. Part No.SLLP40-1610P88
BrandBanner
SGD5,917.95
Each
units
- SLL 40mm Emitter, Receiver - 3 E - 1610mm - 12m 14.6 ms 24 V dc Area
RS Stock No. 182-9542
Mfr. Part No.SLLP23-630P88
BrandBanner
SGD2,343.40
Each
units
- SLL 23mm Emitter, Receiver - 3 E - 630mm - 12m 12.5 ms 24 V dc Area
RS Stock No. 146-5847
Mfr. Part No.SLC440COM-R-0650-30
BrandSchmersal
SGD1,155.82
Each
units
SLC440COM 440 30mm Receiver - - - 32 650mm 300mm 10000mm 10 ms 24 V dc Elevators & Escalators, Food, Heavy Industry, Machine Tools, Packaging
RS Stock No. 182-9558
Mfr. Part No.SLLP23-1680P88
BrandBanner
SGD5,173.61
Each
units
- SLL 23mm Emitter, Receiver - 3 E - 1680mm - 12m 25.2 ms 24 V dc Area
RS Stock No. 913-9270
Mfr. Part No.C2C-SA09030A10000
BrandSick
SGD885.00
Each
units
DeTec2 Core - 30mm Sender 2 1 C - 900mm 0m 10 (Minimum) m, 12 (Typical) m 11 ms 24 V dc Body, Hand
RS Stock No. 182-9568
Mfr. Part No.SLLP40-630P88
BrandBanner
SGD2,782.63
Each
units
- SLL 40mm Emitter, Receiver - 3 E - 630mm - 12m 8.6 ms 24 V dc Area
RS Stock No. 511-7074
Mfr. Part No.012-112
BrandSmartscan
SGD2,042.24
Each
units
- 1000 Plus 30mm Receiver, Sender 3 2 D 48 1230mm 0.5m 5m 40 ms 24 V dc Hand
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