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K031 series
SiRON
8543709990
About selection

| Type analysis | ||
| ① | Universal light curtain series | K031 |
| ② | Number of optical axes | 8:8-axes 12:12-axes 16:16-axes (For other axis numbers, please refer to the selection table) |
| ③ | Optical axis spacing | 10:10mm 20:20mm 40:40mm |
| ④ | Output mode | Blank:NPN output P:PNP ouput |
| ⑤ | Working condition | Blank:Normally closed state NO:Normally open state |
Selection example:K031-8-10 indicates the K031 series, with 8 optical axes, an optical axis spacing of 10mm, NPN output, and a normally closed state.
Noted:1. For a spacing of 10mm: The number of optical axes ranges from 8 to 160.
For a spacing of 20mm: The number of optical axes ranges from 4 to 80.
For a spacing of 40mm: The number of optical axes ranges from 4 to 76.
The protection distance can be customized up to 30 meters. Examples of models are as follows:
K031-12-20(D30) indicates the K031 series, with 12 optical axes, an optical axis spacing of 20mm, NPN output, a normally closed state, and a protection distance of 30 meters.
2. When ordering brackets separately, the order models are: K031-L1, K031-H1, K031-Z, and K031-N.
Specifications
Name | Universal light curtain |
Appearance | ![]() |
Cross area | 35×50mm |
Number of channels | Dual-channel (when the number of optical axes is 4, only single-channel is available) |
Number of optical axes | 10mm spacing:8、12、16----320 axes 20mm spacing:4、6、8----160 axes 40mm spacing:4、6、8----122 axes |
Protective height | The protective height H=(N-1)* the spacing of the optical axes, where N is the number of optical axes |
Protection distance* | 0 . 1~10M(customizable up to 30M) |
Optical axis spacing | 10mm/20mm/40mm |
Resolution | 20mm/30mm/50mm |
Working power supply | DC 10~30V |
Power | <5W |
Emission light source | 940nm |
Protective circuit | Power overvoltage protection, reverse polarity protection and output overcurrent protection |
Response time | Response time =(N*0.1ms)+0.4ms(N is the number of optical axes) |
Operating ambienttemperature | -10~55℃(No condensation) |
Storage ambient temperature | -30~70℃(No condensation) |
Workingambient humidity | When the temperature is 20℃, the relative humidity of the air is less than 85% |
Vibration resistance | Frequency: 10-55Hz, amplitude: 0.35±0.05mm, 20 times in each direction of X,Y, and Z |
Anti-optical interference | 10000Lux(Incident Angle l>5°) |
| Light curtain form | Through-beam type |
| Synchronous mode | line synchronization |
| Shell material | aluminium alloy |
| Case protection class | IP65 |
| Security Output (OSSD) | NPN/PNP transistor output, load current below 200mA, residual voltage below 1V (excluding voltage drop caused by cable extension), leakage current below 1mA |
Example

Detect whether there are any personnel Detect whether there are any personnel
approaching the machinery approaching the machinery
Schematic diagram of optical axis spacing

Selection list
Optical axis spacing is 10mm (protection distance: 0.1 ~ 10m, can be customized to 30m)
Optical axis spacing | 10mm | |||||||||||||||
Number of optical axis | 8-axis | 12-axis | 16-axis | 20-axis | 24-axis | 28-axis | 32-axis | 36-axis | 40-axis | 44-axis | 48-axis | 52-axis | 56-axis | 60-axis | 64-axis | 68-axis |
Protection height (mm) | 70 | 110 | 150 | 190 | 230 | 270 | 310 | 350 | 390 | 430 | 470 | 510 | 550 | 590 | 630 | 670 |
Light curtain height (mm) | 150 | 190 | 230 | 270 | 310 | 350 | 390 | 430 | 470 | 510 | 550 | 590 | 630 | 670 | 710 | 750 |
Optical axis spacing | 10mm | ||||||||||||||||
Number of optical axis | 72-axis | 76-axis | 80-axis | 84-axis | 88-axis | 92-axis | 96-axis | 100-axis | 104-axis | 108-axis | 112-axis | 116-axis | 120-axis | 124-axis | 128-axis | …… | 320-axis |
Protection height (mm) | 710 | 750 | 790 | 830 | 870 | 910 | 950 | 990 | 1030 | 1070 | 1110 | 1150 | 1190 | 1230 | 1270 | …… | 3190 |
Light curtain height (mm) | 790 | 830 | 870 | 910 | 950 | 990 | 1030 | 1070 | 1110 | 1150 | 1190 | 1230 | 1270 | 1310 | 1350 | …… | 3270 |
Optical axis spacing is 20mm(protection distance:0.1~10m,can be customized to 30m)
Optical axis spacing | 20mm | |||||||||||||||
Number of optical axis | 4-axis | 6-axis | 8-axis | 10-axis | 12-axis | 14-axis | 16-axis | 18-axis | 20-axis | 22-axis | 24-axis | 26-axis | 28-axis | 30-axis | 32-axis | 34-axis |
Protection height (mm) | 60 | 100 | 140 | 180 | 220 | 260 | 300 | 340 | 380 | 420 | 460 | 500 | 540 | 580 | 620 | 660 |
Light curtain height (mm) | 125 | 190 | 230 | 270 | 310 | 350 | 390 | 430 | 470 | 510 | 550 | 590 | 630 | 670 | 710 | 750 |
Optical axis spacing | 20mm | ||||||||||||||||
Number of optical axis | 36-axis | 38-axis | 40-axis | 42-axis | 44-axis | 46-axis | 48-axis | 50-axis | 52-axis | 54-axis | 56-axis | 58-axis | 60-axis | 62-axis | 64-axis | …… | 160-axis |
Protection height (mm) | 700 | 740 | 780 | 820 | 860 | 900 | 940 | 980 | 1020 | 1060 | 1100 | 1140 | 1180 | 1220 | 1260 | …… | 3180 |
Light curtain height (mm) | 790 | 830 | 870 | 910 | 950 | 990 | 1030 | 1070 | 1110 | 1150 | 1190 | 1230 | 1270 | 1310 | 1350 | …… | 3270 |
Optical axis spacing is 40mm (protection distance:0.1 ~ 10m,can be customized to 30m)
Optical axis spacing | 40mm | |||||||||||||||
Number of optical axis | 4-axis | 6-axis | 8-axis | 10-axis | 12-axis | 14-axis | 16-axis | 18-axis | 20-axis | 22-axis | 24-axis | 26-axis | 28-axis | 30-axis | 32-axis | 34-axis |
Protection height (mm) | 120 | 200 | 280 | 360 | 440 | 520 | 600 | 680 | 760 | 840 | 920 | 1000 | 1080 | 1160 | 1240 | 1320 |
Light curtain height (mm) | 210 | 290 | 370 | 450 | 530 | 610 | 690 | 770 | 850 | 930 | 1010 | 1090 | 1170 | 1250 | 1330 | 1410 |
Optical axis spacing | 40mm | ||||||||||||||||
Number of optical axis | 36-axis | 38-axis | 40-axis | 42-axis | 44-axis | 46-axis | 48-axis | 50-axis | 52-axis | 54-axis | 56-axis | 58-axis | 60-axis | 62-axis | 64-axis | …… | 122-axis |
Protection height (mm) | 1400 | 1480 | 1560 | 1640 | 1720 | 1800 | 1880 | 1960 | 2040 | 2120 | 2200 | 2280 | 2360 | 2440 | 2520 | …… | 4840 |
Light curtain height (mm) | 1490 | 1570 | 1650 | 1730 | 1810 | 1890 | 1970 | 2050 | 2130 | 2210 | 2290 | 2370 | 2450 | 2530 | 2610 | …… | 4930 |
Note:1 When the number of optical axes is 4,only a single channel can be used.
Attachments


External drawing
wiring diagram
