User-friendly, high precision laser sensing!


UL/C-UL , CE , Korean S Mark , FDA Approved
UL/C-UL : Recognition (Excluding LS-403)[LS -401(P)(-C2): UL approved, Sensor heads: C-UL approved]
FDA : LS-H□F□ only
Korea’s S-mark certification : Some models only
Features
We offer 6 types of laser sensor heads for various applications

Industry standard mounting pitch
The mounting pitch for sensor heads is 25.4 mm 1.000 in, the same industry standard as the CX-400 series Ver.2 general purpose photoelectric sensors. Hence, existing mounting brackets can be used even when replacing general purpose sensors with laser sensors.

Easy and accurate adjustments
[Long sensing range spot reflective type] [Long sensing range line reflective type]
A spot-size adjuster is built into the back of the sensor head allowing the user to adjust the sensor easily while viewing the spot. The adjuster is adjustable with a screwdriver to avoid accidents during maintenance or any other time the sensors are handled.

Line-up of FDA / IEC / JIS Class 1 type [LS-H91(F)-A, LS-H21(F)-A]
Visible light spot using the Class 1 type. This makes beam axis alignment much easier.

Sensor mounting bracket for beam axis alignment is available [MS-CX-11]
It is possible to make a minor adjustment for the bracket by 4 degrees up, down, right or left, even after setting up the sensor. The bracket can be mounted in both longitudinal and lateral directions.

Easy setting, dual display
Equipped with 2 large 4-digit digital displays. While checking the current incident light intensity (red display), the optimal threshold value (green display) can be set easily.

2 switches enable simple operation
Only two switches, the large MODE key and the large jog switch, are required for operation.

Wiring and space saving
The quick-connection cables enable reductions in wiring.
(connector type)
The The quick-connection cables enable reductions in wiring. (connector type)
The connections and man-hours for the relay terminal setup can be reduced and valuable space is saved. Also, LS-400 series amplifiers can of course be connected side-by-side with a connector type amplifier of FX-500/FX-300 series digital fiber sensors or DPS-400 series digital pressure sensors.
Note : Because the transmission method varies depending on the amplifiers, check the instruction manual for the amplifiers when connecting them.

New release of type with upper communication functions to facilitate preventive maintenance!
[LS-403]
Network communication possible
Can connect to Open Network CC-Link IE Field / CC-Link / DeviceNet / EtherCAT via Communication Unit for Open Network SC-GU3 series. Monitoring and various settings can be done from PLC, PC, etc.

* CC-Link and CC-Link IE Field are a registered trademark of Mitsubishi Electric Corporation.
DeviceNet is a registered trademark of ODVA (Open DeviceNet Vender Association, Inc.).
EtherCAT is a registered trademark of Beckhoff Automation GmbH.
* Refer to SC-GU3 series.
Threshold tracking function saves maintenance time
This function seeks changes in the light emitting amount resulting from changes in the environment over long periods (such as dust levels), so that the incident light intensity can be checked at desired intervals and the threshold values can be reset automatically. This helps to reduce the man-hours for maintenance.

Accurately sense the minutest variations (M.G.S. function)
When sensing at close range or when the target objects are transparent or minute, adjust the sensor receiving sensitivity to one of 3 levels (U-LG mode: 4 levels) for the optimal setting. In addition, changing the receiving sensitivity will not effect the response time.

4 new modes enabling wide array of sensing
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[Hysteresis mode] |
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[Window comparator mode] |
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[2 independent output modes] |
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[Differential sensing mode] Only rapid changes in light received are detected, which enable the edge of glass, etc. to be detected accurately. Optimal for positioning. |
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MODE NAVI customized function
Frequently used functions such as response time, M.G.S. function, data bank load, emission halt function and D-CODE values can be stored in CUSTOM mode. The settings can also be changed easily.

Emission halt function
If you do not want to place a laser spot in the visual range of the image processor, you can stop the laser radiation using the emission halt signal from the external input.

Cable type allows external input
The LS-401-C2 cable-type amplifier is equipped with an external input wire (5-core). It is ideal to use the laser sensor at places where external teaching or laser light emission halting is to be carried out, or at places where the laser sensor is to be used separately.

Interference prevention function
The automatic interference prevention function prevents against interference among up to 4 sensors.

Setting conditions viewed at a glance (D-CODE)
The amplifier setting is shown in an 8-digit code. This is handy for remote indications and follow-ups.

Order guide
Sensor heads
| Type | Appearance | Model No. | Conforming standards |
Sensing range | ||
|---|---|---|---|---|---|---|
| Coaxial retroreflective |
Class 2 | ![]() |
LS-H92 (Note 1) |
IEC / JIS / GB | U-LG : 0.2 to 30 m 0.656 to 98.425 ft (Note 4) STD : 0.2 to 20 m 0.656 to 65.617 ft (Note 4) FAST : 0.2 to 10 m 0.656 to 32.808 ft (Note 4) H-SP : 0.2 to 10 m 0.656 to 32.808 ft (Note 4) |
|
| LS-H92F (Note 2) |
FDA / IEC / JIS | |||||
| LS-H91 (Note 1) |
IEC / JIS / GB | U-LG : 0.1 to 7 m 0.328 to 22.966 ft (Note 4) STD : 0.1 to 5 m 0.328 to 16.404 ft (Note 4) FAST : 0.1 to 3 m 0.328 to 9.843 ft (Note 4) H-SP : 0.1 to 3 m 0.328 to 9.843 ft (Note 4) |
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| LS-H91F (Note 2) |
FDA / IEC / JIS | |||||
| Class 1 | LS-H91-A (Note 1) |
IEC / JIS / GB | U-LG : 0.1 to 5 m 0.328 to 16.404 ft (Note 4) STD : 0.1 to 3 m 0.328 to 9.843 ft (Note 4) FAST : 0.1 to 1 m 0.328 to 3.281 ft (Note 4) H-SP : 0.1 to 1 m 0.328 to 3.281 ft (Note 4) |
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| LS-H91F-A (Note 2) |
FDA / IEC / JIS | |||||
| Diffuse reflective |
Long sensing range spot reflective |
Class 2 | ![]() |
LS-H21 (Note 1) |
IEC / JIS / GB | U-LG : 30 to 1,000 mm 1.181 to 39.370 in STD : 30 to 500 mm 1.181 to 19.685 in FAST : 30 to 300 mm 1.181 to 11.811 in H-SP : 30 to 300 mm 1.181 to 11.811 in |
| LS-H21F (Note 2) |
FDA / IEC / JIS | |||||
| Class 1 | LS-H21-A (Note 1) |
IEC / JIS / GB | U-LG : 30 to 500 mm 1.181 to 19.685 in STD : 30 to 250 mm 1.181 to 9.843 in FAST : 30 to 150 mm 1.181 to 5.906 in H-SP : 30 to 150 mm 1.181 to 5.906 in |
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| LS-H21F-A (Note 2) |
FDA / IEC / JIS | |||||
| Long sensing range line reflective |
Class 2 | ![]() |
LS-H22 (Note 1,3) |
IEC / JIS / GB | U-LG : 30 to 1,000 mm 1.181 to 39.370 in STD : 30 to 500 mm 1.181 to 19.685 in FAST : 30 to 300 mm 1.181 to 11.811 in H-SP : 30 to 300 mm 1.181 to 11.811 in |
|
| LS-H22F (Note 2,3) |
FDA / IEC / JIS | |||||
NOTE : Mounting bracket is not supplied with the sensor head. Please select from the range of optional sensor head mounting brackets.
Note 1 : Obtained Korea’s S-mark certification.
Note 2 : This product complies with 21 CFR 1040.10 and 1040.11 Laser Notice No. 50, dated June 24, 2007, issued by CDRH (Center for Devices and Radiological Health) under the FDA (Food and Drug Administration). For details, refer to the Laser Notice No. 50.
Note 3 : LS-H22(F) is the model No. for LS-H21(F) long sensing range spot reflective type sensor head combined with the LS-MR1 lens attachment for line reflective type sensor head. Hence, LS-H21(F) appears on the sensor head itself.
Note 4 : The sensing range is the value for the RF-330 [RF-230 for the LS-H92(F)] reflector. In addition, the sensing range is the possible setting range for the reflector. The sensor can detect an object less than 0.1 m 0.328 ft [LS-H92(F): 0.2 m 0.656 ft] away. Note that if there are white papers or specular objects near the sensor head, reflected light from these objects may be received. In such cases, use the M.G.S. function of the amplifier unit to change the response time or incident light sensitivity.
5 m 16.404 ft cable length type
5 m 16.404 ft cable length type (standard: 2 m 6.562 ft ) is also available.
When ordering this type, suffix “-C5” to the model No.
LS-H91-C5, LS-H91-A-C5, LS-H21-C5, LS-H22-C5
| Standard type | 5 m 16.404 ft cable length type |
|---|---|
| LS-H91 | LS-H91-C5 |
| LS-H91-A | LS-H91-A-C5 |
| LS-H21 | LS-H21-C5 |
| LS-H22 | LS-H22-C5 |
Package without reflector
The LS-H91(F), LS-H91(F)-A and LS-H92(F) are also available without the reflector (RF-330 or RF-230).
When ordering this type, suffix “-Y” to the model No.
LS-H92-Y, LS-H92F-Y, LS-H91-Y, LS-H91F-Y, LS-H91-A-Y, LS-H91F-A-Y
| Standard type | Package without reflector |
|---|---|
| LS-H92 | LS-H92-Y |
| LS-H92F | LS-H92F-Y |
| LS-H91 | LS-H91-Y |
| LS-H91F | LS-H91F-Y |
| LS-H91-A | LS-H91-A-Y |
| LS-H91F-A | LS-H91F-A-Y |
Amplifiers
| Type | Appearance | Model No. | Output | Connection method | |
|---|---|---|---|---|---|
| Connector type | ![]() |
LS-401 (Note 1) |
NPN open-collector transistor two outputs |
Use quick-connection cable (4-core) (optional) | |
| LS-401P | PNP open-collector transistor two outputs |
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| With upper communication function (Note 2) |
LS-403 | NPN open-collector transistor two outputs |
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| Cable type (With external input) |
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LS-401-C2 (Note 1) |
NPN open-collector transistor two outputs |
2 m 6.562 ft cabtyre cable (5-core) included Cable outer diameter: ø3.7 mm ø0.146 in | |
| LS-401P-C2 | PNP open-collector transistor two outputs |
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Note 1 : Obtained Korea’s S-mark certification.
Note 2 : For upper communication, a communication unit for open network SC-GU3 series is needed separately. Refer to SC-GU3 series.
Quick-connection cables
Quick-connection cable is not supplied with the connector type amplifier. Please order it separately.
| Type | Appearance | Model No. | Description | |
|---|---|---|---|---|
| Main cable
(4-core) |
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CN-74-C1 | Length: 1 m 3.281 ft | 0.2 mm2 4-core cabtyre cable, with connector on one end
Cable outer diameter: ø3.3 mm ø0.130 in |
| CN-74-C2 | Length: 2 m 6.562 ft | |||
| CN-74-C5 | Length: 5 m 16.404 ft | |||
| Sub cable
(2-core) |
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CN-72-C1 | Length: 1 m 3.281 ft | 0.2 mm2 2-core cabtyre cable, with connector on one end
Cable outer diameter: ø3.3 mm ø0.130 in |
| CN-72-C2 | Length: 2 m 6.562 ft | |||
| CN-72-C5 | Length: 5 m 16.404 ft | |||
(Note): The material of Quick-connection cable will be changed from production in March 2013, as soon as the previous ones are shipped out.
・Conductor cross-sectional area has been changed from 0.15mm2 to 0.2mm2.
・Sheath diameter has been changed from ø3.0mm to ø3.3mm.
End plates
End plates are not supplied with the amplifier. Please order them separately when the amplifiers are mounted in cascade.
| Appearance | Model No. | Description |
|---|---|---|
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MS-DIN-E | When amplifiers are mounted in cascade, or when an amplifier moves depending on the way it is installed on a DIN rail, these end plates clamp amplifiers into place on both sides. Make sure to use end plates when cascading multiple amplifiers together. [Two pcs. per set] |
Accessories

Material: Stainless steel (SUS304)
RF-330 (Reflector)

CN-EP1(Connector for amplifier)5 pcs. per set (Note)

Note:
One is attached to each sensor head according to standard.
LS-MR1(Lens attachment for line reflective type)


Note: LS-H92(F) only













