M126E2LDQ-805326

## M12 Class 2 Laser Emitter 

## Features 

- Uses a self-contained Class 2 modulated laser emitter with a visible red beam 

- Beam is bore-sighted to within 2 milliradians and 0.25 mm of the housing centerline 

- Useful for long-range sensing, or for sensing very small objects or profiles; excellent mechanical repeatability in position-sensing applications 

- Features 12.7 mm diameter smooth aluminum barrel 

- 10 V DC to 30 V DC supply voltage 

- Compatible with a variety of photoelectric receivers 

- Features collimated, apertured beam 2 mm in diameter, divergence of less than 1 milliradian 

- Delivers excellent mechanical repeatability in position-sensing applications 

- Available with unterminated, 2 m (6.5 ft) cable or 150 mm (6 in) quick-disconnect cable 

- Modulated beam (33 kHz, 25% duty cycle) 

## WARNING: 

- Do not use this device for personnel protection 

- Using this device for personnel protection could result in serious injury or death. 

- This device does not include the self-checking redundant circuitry necessary to allow its use in personnel safety applications. A device failure or malfunction can cause either an energized (on) or de-energized (off) output condition. 

## CAUTION: 

- Never stare directly into the sensor lens. 

- Laser light can damage your eyes. 

- Avoid placing any mirror-like object in the beam. Never use a mirror as a retroreflective target. 

## CAUTION: 

- Return defective units to the manufacturer. 

- Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. 

- Do not attempt to disassemble this sensor for repair. A defective unit must be returned to the manufacturer. 

## Models 

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Model Range Connector Supply Voltage<br>M126E2LD 2 m (6.5 ft) unterminated<br>Range varies, depending on which<br>receiver is used (see "M12 Excess Gain"  150 mm (6 in) PVC-jacketed cable with a  10 V DC to 30 V DC<br>M126E2LDQ on page 4) 3-pin M8 male quick-disconnect<br>connector<br>**----- End of picture text -----**<br>


The 9 m (30 ft) PVC cable model (M126E2LD W/30) is no longer available for order, but is covered by the contents of this document. Models with a quick disconnect require a mating cordset. 

## Installation 

## Mount the M12 Laser Sensor 

Mounting suggestions: 

- To take advantage of the bore-sight beam placement offered by the M12 laser emitter, use a two-part clamp mount or a mounting block with a precision-drilled hole. Allow minimum clearance for the 12.7 mm (0.50 in) diameter housing, maximum diameter 12.83 mm (0.505 in). 

- Clamp on both sides of the label. Do not clamp only on the labeled area. Use only plastic-tipped screws or set screws – not metal – to avoid compression of the housing. 

Mounting bracket assembly model SMB46X3 is recommended for use with the M12. The assembly includes: 

- A black-anodized aluminum block with holes drilled for mounting in any of 3 directions with plastic set screws 

- An adjustable stainless-steel bracket with 3 spring-loaded screws (two of the screws are used for precise alignment) 

The mounting block, model SMB127, can be ordered separately. 

> © Banner Engineering Corp. All rights reserved. www.bannerengineering.com 

Original Instructions 08-Apr-26 

p/n: 52989 Rev. G 

M12 Class 2 Laser Emitter 

## _Three Possible M12 Orientations_ 

1. Insert the laser emitter into the SMB127 mounting block, through any of the three holes. 

2. Make sure that the label area of the emitter is not aligned with a set screw. 

3. Tighten the set screws, using the supplied 3/64-in Allen wrench, so that the emitter is held snugly in place. 

4. Mount the block to the adjustable baseplate (or to your own bracket). 

5. Mount the bracket base using your own M5 or #10 screws or bolts. 

6. Check for alignment (see "M12 Laser Emitter Alignment" on page 2). 

7. Tighten or loosen one or two of the precision alignment screws, using the supplied 2 mm Allen wrench, until the laser is accurately aligned. 

## M12 Laser Sensor Wiring 

Quick disconnect wiring diagrams are functionally identical. 

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bu (3) – 3-pin M8 male pinout<br>10-30 V DC 4 Key<br>bn (1) + 1 = Brown<br>3 = Blue<br>bk (4) 1 3 4 = Black<br>Beam Enable<br>**----- End of picture text -----**<br>


## M12 Laser Emitter Alignment 

M12 laser emitters have a beam divergence of only 0.03° (0.5 milliradians) at 25 °C (77 °F) ambient temperature. This translates, for example, to a beam diameter of only 9.5 mm (0.37 in) at a distance of 6.1 m (20 ft). Consequently, there is very little forgiveness for angular misalignment. 

_M12 laser emitter beam divergence at 25 °C (beam size vs. distance)_ 

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Approx. 2 mm<br>Approx.<br>0.5mrad = 0.029º<br>Laser Emitter<br>W<br>Sensing Distance = X<br>W = 2 mm + 2X(tan.0029º) = 2 mm + X(0.001)<br>**----- End of picture text -----**<br>


## M12 laser emitter beam divergence at 25 °C (beam size vs. distance) 

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|||
|---|---|
|Opposed Distance (X)|Beam Width (W)|
|1.5 m (5 ft)|5.0 mm (0.20 in)|
|3 m (10 ft)|6.5 mm (0.26 in)|
|6 m (20 ft)|9.5 mm (0.37 in)|
|15 m (50 ft)|19 mm (0.75 in)|
|30 m (100 ft)|34 mm (1.34 in)|

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The beam size listed is also the effective beam size at the receiver. The effective beam is equal to the minimum opaque object profile required to block the light beam. The beam size at the emitter is 3.5 mm (0.14 in) diameter. 

The effect of angular misalignment is dramatic. Laser emitters require their beam center to directly strike the receiver lens. "Figure: Beam displacement per degree of misalignment" on page 3 shows how far the laser beam will miss the center of the receiver lens for each degree 

© Banner Engineering Corp. All rights reserved. www.bannerengineering.com 

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08-Apr-26 

M12 Class 2 Laser Emitter 

of angular misalignment (in any plane). Note that even at only a 5 ft range, one degree of misalignment causes the laser beam to miss the lens of most receivers. 

_Beam displacement per degree of misalignment_ 

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Ø = Misalignment Angle<br>Y<br>Laser Emitter Sensing Distance = X<br>Y = X(tan Ø)<br>**----- End of picture text -----**<br>


## Beam displacement per degree of misalignment 

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Opposed Distance (X) Beam Displacement (Y) for 1° of Misalignment<br>1.5 m (5 ft) 25 mm (1 in)<br>3 m (10 ft) 50 mm (2 in)<br>6 m (20 ft) 100 mm (4 in)<br>15 m (50 ft) 250 mm (10 in)<br>30 m (100 ft) 500 mm (20 in)<br>**----- End of picture text -----**<br>


Alignment Tip: The visible red beam of the laser emitter is easily seen in subdued lighting. 

## Alignment: 

1. At opposed distances of up to 3 m (10 ft), attach a sheet of white paper directly in front of the receiver lens. 

2. Mark the location of the lens center on the paper. Use this mark as an aiming target. 

3. Sight along the beam from directly behind the laser emitter. 

4. Adjust the emitter mounting until the red image (the dot of red light) is centered exactly on the mark. 

5. Remove the paper and check the response of the receiver. 

For longer distances (up to 7.6 m or 25 ft), replace the white paper with a 102 mm × 102 mm (4 in × 4 in) square of high-grade retroreflective tape (Banner model BRT-THG-4X4-5 or equivalent). For greater distances, use a larger sheet of retroreflective material. Never use a mirror as an alignment target. 

_At long distances, use retroreflective tape to locate the beam at the receiver location._ 

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Receiver<br>Target<br>M12<br>**----- End of picture text -----**<br>


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## Specifications 

## Supply Voltage and Current 

10 V DC to 30 V DC (10% max. ripple) at less than 30 mA 

## Supply Protection Circuitry 

Protected against reverse polarity, transient voltages, and electrostatic discharge 

Delay at Power-Up 

Less than 30 milliseconds 

## Sensing Beam 

Visible red Class 2 laser (temperature coefficient 0.2 nm/°C) 

Rep Rate: 30 µs 

See "Class 2 Laser Description and Safety Information" on page 4 

## Beam Diameter at Aperture 

Approximately 3.5 mm (0.14 in) diameter 

## Beam Placement 

Within 0.25 mm (0.01 in) and ±2 milliradians of the mechanical centerline axis of the housing 

Beam Divergence 

- ± 0.5 milliradians typical at 25° C; ±1.0 milliradians at operating temperature extremes 

## Laser Control 

Beam enable: Apply + 10 V DC to 30 V DC to black wire 

Beam inhibit: Apply 0 V or by opening the circuit Enable delay: Less than 30 milliseconds Inhibit delay: Less than 1 milliseconds 

## Indicators 

Indicators are visible through the rear cover Green indicates the power is applied Amber indicates the laser is enabled 

## Connections 

- 2 m (6.5 ft) unterminated 3-wire PVC-jacketed high-flex cable, 9 m (30 ft) unterminated 3-wire PVC-jacketed high-flex cable, or 150 mm (6 in) PVC-jacketed cable with a 3-pin M8 male quickdisconnect connector 

## Construction 

12.7 mm (0.50 in) diameter smooth aluminum barrel; black hard-coat anodized finish MIL-A-8625 Type 2, Class 2 

© Banner Engineering Corp. All rights reserved. www.bannerengineering.com 

08-Apr-26 

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M12 Class 2 Laser Emitter 

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Operating Temperature Effective Beam at Receiver at 25° C Certifications<br>0 °C to +40 °C (+32 °F to +104 °F)<br>90% at +50 °C maximum relative humidity (non- Opposed Distance Beam Width Banner Engineering BV<br>condensing) 1.5 m (5 ft) 5 mm (0.20 in) Park Lane, Culliganlaan 2F bus 31831 Diegem, BELGIUM<br>Environmental Rating<br>3 m (10 ft) 6.5 mm (0.26 ft)<br>IP67<br>Turck Banner LTD Blenheim House<br>6 m (20 ft) 9.5 mm (0.37 ft) Blenheim Court<br>15 m (50 ft) 19 mm (0.75 ft) Wickford, Essex SS11 8YT<br>GREAT BRITAIN<br>30 m (100 ft) 34 mm (1.34 in)<br>**----- End of picture text -----**<br>


## Dimensions 

All measurements are listed in millimeters [inches], unless noted otherwise. The measurements provided are subject to change. 

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Aperture/Caution Label See "Connections"<br>(Do not clamp only in this area) in Specifications<br>Green LED<br>Indicates power applied<br>6 fie Amber LED<br>Indicates laser enabled<br>ø12.7 mm UL 57 mm<br>(0.50") (2.25")<br>LASER RADIA DO NOT ST   INTO BEA Peak Power:  2.2mW, 0.3633kHz 25% duty cycle<br>**----- End of picture text -----**<br>


## Excess Gain 

The excess gain of the M12 emitter depends on the particular receiver used. The following compares the excess gain for various recommended receivers at 15 m (50 ft). 

For information on the compatibility of the M12 emitter with other Banner photoelectric receivers, contact Banner Engineering. 

MULTI-BEAM Models EZ-BEAM Models ECONO-BEAM Models SBRX1: 19,000 T18SN6R: 7,500 SE61R: 600 SBR1: 19,000 T30SN6R: 7,500 SE61RMHS: 500 SBRXD1: 19,000 S12SN6R: 7,500 Other Models SBRD1: 19,000 MINI-BEAM Models SM51RB: 1,200 MAXI-BEAM Models SM31R: 2,500 Q23SN6R: 400 RSBR: 14,000 SM31RL: 17,000 Q10AN6R: 250 RSBRSR: 1,500 SM31RMHS: 1,800 Q45BB6R: 9,000 VALU-BEAM Models SM31RLMHS: 11,000 SMW95R: 34,000 SMI91RQD: 18,000 

Class 2 Laser Description and Safety Information 

Laser light. Do not stare into the beam. **CLASS 2** Complies with 21 CFR 1040.10 and 1040.11 except for deviations **LASER PRODUCT** pursuant to Laser Notice No. 56, dated May 8, 2019. [| 

## CAUTION: 

- Never stare directly into the sensor lens. 

- • Laser light can damage your eyes. • Avoid placing any mirror-like object in the beam. Never use a mirror as a retroreflective target. 

© Banner Engineering Corp. All rights reserved. www.bannerengineering.com 

08-Apr-26 

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M12 Class 2 Laser Emitter 

## CAUTION: 

- Return defective units to the manufacturer. 

- Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. 

- Do not attempt to disassemble this sensor for repair. A defective unit must be returned to the manufacturer. 

## CAUTION: 

- Ne regardez jamais directement la lentille du capteur. 

- La lumière laser peut endommager la vision. 

- Évitez de placer un objet réfléchissant (de type miroir) dans la trajectoire du faisceau. N'utilisez jamais de miroir comme cible rétro-réfléchissante. 

## CAUTION: 

- Tout dispositif défectueux doit être renvoyé au fabricant. 

- L'utilisation de commandes, de réglages ou de procédures autres que celles décrites dans le présent document peut entraîner une exposition dangereuse aux radiations. 

- N'essayez pas de démonter ce capteur pour le réparer. Tout dispositif défectueux doit être renvoyé au fabricant. 

Class 2 lasers are lasers that emit visible radiation in the wavelength range from 400 nm to 700 nm, where eye protection is normally afforded by aversion responses, including the blink reflex. This reaction may be expected to provide adequate protection under reasonably foreseeable conditions of operation, including the use of optical instruments for intrabeam viewing. 

## Complies with IEC 60825-1:2014 and EN 60825-1:2014+A11:2021. 

Class 2 Laser Safety Notes . Low-power lasers are, by definition, incapable of causing eye injury within the duration of a blink (aversion response) of 0.25 seconds. They also must emit only visible wavelengths (400 nm to 700 nm). Therefore, an ocular hazard may exist only if individuals overcome their natural aversion to bright light and stare directly into the laser beam. 

For safe laser use: 

- Do not stare at the laser. 

- Do not point the laser at a person’s eye. 

- Mount open laser beam paths either above or below eye level, where practical. 

- Terminate the beam emitted by the laser product at the end of its useful path. 

IMPORTANT: This laser device is not bore-sighted. 

Class 2 Laser Characteristics Output power: ˂2.8 mW Laser wavelength: 650 nm Pulse duration: 7 µs 

## Accessories 

## Mounting Brackets 

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SMB46X3 36<br>• Assembly with mounting block and adjustable bracket<br>• Includes:<br>2 mm Shortarm hex key 65<br>3/64-in Shortarm hex key Ø6.6<br>4 Set screws<br>i)<br>• CAD Files: DXF, PDF, IGS, STP 45 61<br>SMB127<br>36 36<br>• Mounting block only<br>• Includes:<br>21<br>3/64-in Shortarm hex key<br>4 Set screws<br>• CAD Files: DXF, PDF, IGS, STP Ø12.93 X<br>**----- End of picture text -----**<br>


© Banner Engineering Corp. All rights reserved. www.bannerengineering.com 

08-Apr-26 

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M12 Class 2 Laser Emitter 

## Quick-Disconnect Cables 

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|||||||
|---|---|---|---|---|---|
|3-pin Single-Ended M8 Female Cordsets|
|Model|Length|Dimensions|Pinout (Female)|
|PKG3M-2|2 m (6.56 ft)|
|35 Typ.|
|PKG3M-4|4 m (13.12 ft)|
|PKG3M-5|5 m (16.4 ft)|ø 9.5|
|4|
|PKG3M-7|7 m (22.96 ft)|
|M8 x 1|
|PKG3M-9|9 m (29.52 ft)|oma|3|@NS|1|
|4.3 mm Dia|1 = Brown|
|3 = Blue|
|4 = Black|
|PKG3M-10|10 m (32.81 ft)|————|
|7 mm|
|—|58 mm|
|Retroreflective Tape|
|Model|Reflectivity Factor|Maximum Temperature|Size|
|BRT-THG-4X4-5|0.7|+60 °C (+140 °F)|100 × 100 mm (package of 5)|
|Model|Reflectivity Factor|Maximum Temperature|Size|
|BRT-THG-8.5X11-2|0.7|+60 °C (+140 °F)|216 × 280 mm (package of 2)|
|Model|Reflectivity Factor|Maximum Temperature|Size|
|BRT-THG-18X36|0.7|+60 °C (+140 °F)|457 × 914 mm (single sheet)|

**----- End of picture text -----**<br>


## Retroreflective Tape 

## Banner Engineering Corp Limited Warranty 

Banner Engineering Corp. warrants its products to be free from defects in material and workmanship for one year following the date of shipment. Banner Engineering Corp. will repair or replace, free of charge, any product of its manufacture which, at the time it is returned to the factory, is found to have been defective during the warranty period. This warranty does not cover damage or liability for misuse, abuse, or the improper application or installation of the Banner product. 

THIS LIMITED WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED (INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE), AND WHETHER ARISING UNDER COURSE OF PERFORMANCE, COURSE OF DEALING OR TRADE USAGE. 

This Warranty is exclusive and limited to repair or, at the discretion of Banner Engineering Corp., replacement. IN NO EVENT SHALL BANNER ENGINEERING CORP. BE LIABLE TO BUYER OR ANY OTHER PERSON OR ENTITY FOR ANY EXTRA COSTS, EXPENSES, LOSSES, LOSS OF PROFITS, OR ANY INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES RESULTING FROM ANY PRODUCT DEFECT OR FROM THE USE OR INABILITY TO USE THE PRODUCT, WHETHER ARISING IN CONTRACT OR WARRANTY, STATUTE, TORT, STRICT LIABILITY, NEGLIGENCE, OR OTHERWISE. 

Banner Engineering Corp. reserves the right to change, modify or improve the design of the product without assuming any obligations or liabilities relating to any product previously manufactured by Banner Engineering Corp. Any misuse, abuse, or improper application or installation of this product or use of the product for personal protection applications when the product is identified as not intended for such purposes will void the product warranty. Any modifications to this product without prior express approval by Banner Engineering Corp will void the product warranties. All specifications published in this document are subject to change; Banner reserves the right to modify product specifications or update documentation at any time. Specifications and product information in English supersede that which is provided in any other language. For the most recent version of any documentation, refer to: www.bannerengineering.com. 

For patent information, see www.bannerengineering.com/patents. 

© Banner Engineering Corp. All rights reserved. www.bannerengineering.com 

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