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Welcome to the official website of Lihong Safety Equipment Engineering (Shanghai) Co., Ltd.!

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Position首頁 > Home > Industrial Safety Products > Sensor > Safety Light Curtain

LSMT series security grating

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·Optical synchronization, simplifying wiring and improving installation efficiency

·The maximum detection height can reach 1960mm, and the stable distance to light can reach 16 m.

·Unique vibration reduction design, good vibration resistance

·High protection level: IP65 protection level

·Strong anti-optical interference and electromagnetic interference, stable performance.

·Small size, beautiful appearance and excellent performance.

·It is suitable for safety protection in dangerous places such as automation field, mechanical press, hydraulic press, shearing machine and bending machine.

·Through TüV certification, the safety level reaches Type4/Cat.4/PLe/SIL3.

▊Specification and model list

Detection accuracy 14mm series
specifications and models	Beam number	Optical axis spacing（mm）	Protective height（mm）	Product length（mm）	complete built unitMTTFd（year）	complete built unitMTTF（year）
LSMT-14-140H	13	10	120	140	441.87	80.53
LSMT-14-220H	21	10	200	220	369.72	65.27
LSMT-14-300H	29	10	280	300	317.82	54.87
LSMT-14-380H	37	10	360	380	278.70	47.33
LSMT-14-460H	45	10	440	460	248.15	41.61
LSMT-14-540H	53	10	520	540	223.64	37.13
LSMT-14-620H	61	10	600	620	203.54	33.52
LSMT-14-700H	69	10	680	700	186.75	30.54
LSMT-14-780H	77	10	760	780	172.52	28.06
LSMT-14-860H	85	10	840	860	160.31	25.94
LSMT-14-940H	93	10	920	940	149.71	24.13
LSMT-14-1020H	101	10	1000	1020	140.42	22.55
LSMT-14-1100H	109	10	1080	1100	131.17	20.86
LSMT-14-1180H	117	10	1160	1180	123.47	19.54
LSMT-14-1260H	125	10	1240	1260	116.85	18.31
LSMT-14-1340H	133	10	1320	1340	110.24	17.65
LSMT-14-1420H	141	10	1400	1420	104.58	16.89
LSMT-14-1500H	149	10	1480	1500	98.82	15.47
LSMT-14-1580H	157	10	1560	1580	92.17	14.29
LSMT-14-1660H	165	10	1640	1660	88.74	13.27
LSMT-14-1740H	173	10	1720	1740	82.65	12.68
LSMT-14-1820H	181	10	1800	1820	76.24	11.95
LSMT-14-1900H	189	10	1880	1900	70.15	10.65
LSMT-14-1980H	197	10	1960	1980	64.85	9.87
1. The above models are the default detection distance. Type A: 0-10m, and (-□) can be added after the models, and the detection distance can be customized. Type B: 0-16m, Type C: 0-5m, Type D: 0-40m and Type E: 0-70m. 2. Other lengths are subject to customization.
The detection accuracy is 25mm.
specifications and models	Beam number	Optical axis spacing（mm）	Protective height（mm）	Product length（mm）	complete built unitMTTFd（year）	complete built unitMTTF（year）
LSMT-25-140H	7	20	120	140	517.64	97.65
LSMT-25-220H	11	20	200	220	464.53	85.53
LSMT-25-300H	15	20	280	300	421.31	76.08
LSMT-25-380H	19	20	360	380	385.45	68.52
LSMT-25-460H	23	20	440	460	355.22	62.32
LSMT-25-540H	27	20	520	540	329.38	57.15
LSMT-25-620H	31	20	600	620	307.04	52.77
LSMT-25-700H	35	20	680	700	287.55	49.02
LSMT-25-780H	39	20	760	780	270.38	45.76
LSMT-25-860H	43	20	840	860	255.14	42.91
LSMT-25-940H	47	20	920	940	241.53	40.39
LSMT-25-1020H	51	20	1000	1020	229.30	38.16
LSMT-25-1100H	55	20	1080	1100	218.25	36.16
LSMT-25-1180H	59	20	1160	1180	208.22	34.35
LSMT-25-1260H	63	20	1240	1260	199.06	32.72
LSMT-25-1340H	67	20	1320	1340	190.68	31.24
LSMT-25-1420H	71	20	1400	1420	182.98	29.88
LSMT-25-1500H	75	20	1480	1500	175.87	28.64
LSMT-25-1580H	79	20	1560	1580	169.29	27.50
LSMT-25-1660H	83	20	1640	1660	163.19	26.44
LSMT-25-1740H	87	20	1720	1740	157.52	25.46
LSMT-25-1820H	91	20	1800	1820	151.86	24.32
LSMT-25-1900H	95	20	1880	1900	145.42	23.17
LSMT-25-1980H	99	20	1960	1980	139.27	22.96
1. The above models are the default detection distance. Type A: 0-10m, and (-□) can be added after the models, and the detection distance can be customized. Type B: 0-16m, Type C: 0-5m, Type D: 0-40m and Type E: 0-70m. 2. Other lengths are subject to customization.
Detection accuracy 45mm series
specifications and models	Beam number	Optical axis spacing（mm）	Protective height（mm）	Product length（mm）	complete built unit MTTFd（year）	complete built unit MTTF（year）
LSMT-45-140H	4	40	120	140	566.18	109.27
LSMT-45-220H	6	40	200	220	532.86	101.24
LSMT-45-300H	8	40	280	300	503.25	94.31
LSMT-45-380H	10	40	360	380	476.76	88.27
LSMT-45-460H	12	40	440	460	452.92	82.95
LSMT-45-540H	14	40	520	540	431.35	78.24
LSMT-45-620H	16	40	600	620	411.74	74.04
LSMT-45-700H	18	40	680	700	393.83	70.26
LSMT-45-780H	20	40	760	780	377.42	66.85
LSMT-45-860H	22	40	840	860	362.32	63.76
LSMT-45-940H	24	40	920	940	348.38	60.94
LSMT-45-1020H	26	40	1000	1020	335.48	58.36
LSMT-45-1100H	28	40	1080	1100	323.50	55.99
LSMT-45-1180H	30	40	1160	1180	312.34	53.80
LSMT-45-1260H	32	40	1240	1260	301.93	51.78
LSMT-45-1340H	34	40	1320	1340	292.19	49.90
LSMT-45-1420H	36	40	1400	1420	283.05	48.16
LSMT-45-1500H	38	40	1480	1500	274.48	46.53
LSMT-45-1580H	40	40	1560	1580	266.40	45.01
LSMT-45-1660H	42	40	1640	1660	258.79	43.59
LSMT-45-1740H	44	40	1720	1740	251.60	42.25
LSMT-45-1820H	46	40	1800	1820	244.80	41.00
LSMT-45-1900H	48	40	1880	1900	238.36	39.81
LSMT-45-1980H	50	40	1960	1980	232.24	38.69
1. The above models are the default detection distance. Type A: 0-10m, and (-□) can be added after the models, and the detection distance can be customized. Type B: 0-16m, Type C: 0-5m, Type D: 0-40m and Type E: 0-70m. 2. Other lengths are subject to customization.

▊technical parameter

executive standard
European Standards	EN 61496-1、2:2020、EN 61508-1~4:2020、EN ISO 13849-1、2:2023
international standard	IEC 61496-1、2:2020、EC61508-1~4:2010、1S0 13849-1、2:2023
Chinese standard	GB 4584
Security category
Security category	Type4、SIL3、Category4、PLe
MTTFd	157~557year No, please check the model details.
Optical parameters
Emitting light source	Infrared LED (central wavelength 850nm)
Optical axis spacing	10mm			20mm		40mm
Detection accuracy	14mm			25mm		45mm
Protective height	(Number of beams -1)* Optical axis spacing (unit mm)
Detection distance	Type A: 0 ~ 10m, type B: 0 ~ 16m, type C: 0 ~ 5m, type D: 0 ~ 40m and type E: 0 ~ 70m.
environmental parameter
ambient temperature	Working temperature		-10℃~55℃（Smooth surface without frost and dew condensation）
	storage temperature		-40℃~70℃
ambient humidity	Working humidity		35%RH~85%RH
	storage temperature		35%RH~95%RH
Anti-light interference	filament lamp		3000Lux
	fluorescent lamp		3000Lux
	sunlight		10000Lux
Anti-vibration ability	The frequency is 10Hz-55Hz, the amplitude is 0.35+0.05mm, and the frequency is 20 times in X, Y and Z directions respectively.
Impact resistance	The acceleration is 10g, the pulse duration is 16ms, and 1000 times in X, Y and Z directions respectively.
sectional dimension	34×28mm
electrical specification
operating voltage	24V DC±20%
operational current	launcher:<200mA				Receiver: < 200mA (no load)
Response time	(Increase or decrease with the number of beams)
Safe output （OSSD）	PNP	PNP transistor output ×2; In the ON state, the load current is ≤100mA and the output voltage is ≥Vcc-2V; In the OFF state, the leakage current is ≤1mA, and the residual voltage is ≤ 1V (excluding the influence of wire extension).
	NPN	When the NPN transistor outputs ×2, the load current is ≤100mA and the output voltage is ≤2V; In the OFF state, the leakage current is ≤1mA and the residual voltage is ≤2V (excluding the influence of wire extension).
start time	< 3s
Detection function	Power-on self-inspection, real-time self-inspection during work.
protective circuit	Overvoltage and overcurrent protection, output short circuit protection

▊	Three Highlights of LSMT Series Security Grating


Feature 2: LSMT grating has unique light spot and light spot signal indicator.	Feature 3: Intelligent security grating

Indicator function:	Intelligent:
·The indicator lamp shows the signal strength of the grating light spot. ·In the process of installation and alignment, the indicator lamp is particularly important. ·In normal use, if dirt sticks to the grating, the indicator light will light up to show the dirt blocking position.	·LSMT can be connected to all safety modules with MODBUS. ·Monitor the grating status at any time. ·Realize safe digital management.

▊	Configuration description

	·The product is equipped with infrared as standard, and PNP/NPN output mode is set with one button, which is compatible with all kinds of equipment, eliminating the trouble of type selection and ready to use. ·Intuitive display shows the light intensity and equipment status at a glance.
	·The shunt indicator lamp can display the working state of each section of the grating in real time, which is convenient for monitoring and troubleshooting. At the same time, it can quickly locate the problem position, reduce maintenance time and cost, and continuously protect production safety. ·Intuitive indicator lamp design is convenient for operators to understand and use without complicated training.
	·The optical communication channel includes dual frequency bands A and B, which effectively avoids the problem of homologous optical interference between devices.
	·One-button infrared configuration through remote control or mobile phone APP ·According to the actual scene, the grating distance mode is selected, and the sensitivity is freely adjusted to escort the safety production.