M126E1LD

## M12 Class 1 Laser Emitter 

## Features 

IEC Class 1 Laser for Use with Banner Modulated Receivers 

- A low-power device emitting a visible red beam, 650 nm wavelength 

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

- Collimated, apertured beam is 2 mm diameter with divergence of less than 1 milliradian 

- Compatible with a variety of Banner modulated photoelectric receivers 

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

- Smooth-barrel aluminum housing is suitable for a precision mount 

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

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

- 57 mm (2.25 in) long overall 

- 10 V DC to 30 V DC operation 

## 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>M126E1LD Range varies, depending on which  2 m (6.5 ft) unterminated<br>M126E1LDQ receiver is used (see on page 4) "M12 Excess Gain"  150 mm (6 in) PVC cable with 3-pin M8 quick disconnect 10 V DC to 30 V DC<br>Effective Beam at Receiver at 25° C<br>Opposed Distance Beam Width<br>1.5 m (5 ft) 3.5 mm (0.14 in)<br>3 m (10 ft) 5 mm (0.2 in)<br>6 m (20 ft) 8 mm (0.3 in)<br>15 m (50 ft) 17 mm (0.7 in)<br>30 m (100 ft) 32 mm (1.3 in)<br>**----- End of picture text -----**<br>


To order the 9 m (30 ft) PVC cable model, replace the suffix "Q" with "W/30" in the model number. For example, M126E1LDQ W/30. 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). 

Original Instructions 06-Feb-26 

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

p/n: 53808 Rev. D 

M12 Class 1 Laser Emitter 

- 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. 

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Three Possible M12 Orientations<br>**----- End of picture text -----**<br>


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 "Accessories" on page 5). 

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) –<br>10-30 V DC Key<br>bn (1) + 1 = Brown<br>3 = Blue<br>bk (4) 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 8 mm (0.3 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)|3.5 mm (0.14 in)|
|3 m (10 ft)|5 mm (0.2 in)|
|6 m (20 ft)|8 mm (0.3 in)|
|Continued on page 3|

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


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

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06-Feb-26 

M12 Class 1 Laser Emitter 

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Continued from page 2<br>Opposed Distance (X) Beam Width (W)<br>15 m (50 ft) 17 mm (0.7 in)<br>30 m (100 ft) 32 mm (1.3 in)<br>**----- End of picture text -----**<br>


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 2 mm (0.08 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 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 

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

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._ 

## Specifications 

Supply Voltage and Current 10 V DC to 30 V DC (10% max. ripple) at less than 30 mA 

Receiver Target M12 Supply Protection Circuitry Delay at Power-Up Protected against reverse polarity, transient Less than 30 milliseconds voltages, and electrostatic discharge 

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

06-Feb-26 

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M12 Class 1 Laser Emitter 

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Sensing Beam Indicators Effective Beam at Receiver at 25° C<br>Visible red Class 1 laser (temperature coefficient  Indicators are visible through the rear cover<br>0.2 nm/°C) Green indicates the power is applied Opposed Distance Beam Width<br>Rep Rate: 30 µs Amber indicates the laser is enabled 1.5 m (5 ft) 5 mm (0.20 in)<br>See "Class 1 Laser Description and Safety  Connections<br>Information" on page 5 3 m (10 ft) 6.5 mm (0.26 ft)<br>2 m (6.5 ft) unterminated 3-wire PVC-jacketed<br>Beam Diameter at Aperture high-flex cable, 9 m (30 ft) unterminated 3-wire  6 m (20 ft) 9.5 mm (0.37 ft)<br>Approximately 2 mm (0.08 in) diameter PVC-jacketed high-flex cable, or 150 mm (6 in)<br>Beam Placement PVC-jacketed cable with a 3-pin M8 male quick- 15 m (50 ft) 19 mm (0.75 ft)<br>disconnect connector<br>Within 0.25 mm (0.01 in) and ±2 milliradians of the  30 m (100 ft) 34 mm (1.34 in)<br>mechanical centerline axis of the housing Construction<br>Beam Divergence 12.7 mm (0.50 in) diameter smooth aluminum  Certifications<br>barrel; black hard-coat anodized finish<br>± 0.5 milliradians typical at 25° C; ±1.0 milliradians at operating temperature extremes MIL-A-8625 Type III, Class II Banner Engineering BV<br>Operating Temperature Park Lane, Culliganlaan 2F bus 3<br>Laser Control 0 °C to +40 °C (+32 °F to +104 °F) 1831 Diegem, BELGIUM<br>Beam enable: Apply + 10 V DC to 30 V DC to<br>black wire 90% at +40 °C maximum relative humidity (non-<br>condensing) Turck Banner LTD Blenheim House<br>Beam inhibit: Apply 0 V or by opening the circuit Blenheim Court<br>Enable delay: Less than 30 milliseconds Environmental Rating Wickford, Essex SS11 8YT<br>Inhibit delay: Less than 1 milliseconds IP67 GREAT BRITAIN<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>ø12.7 mm 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>


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Green LED<br>Indicates power applied<br>Amber LED<br>Indicates laser enabled<br>**----- End of picture text -----**<br>


## Excess Gain 

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

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Receiver Excess Gain at 15 m (50 ft) Receiver Excess Gain at 15 m (50 ft)<br>MULTI-BEAM MINI-BEAM<br>SBRX1 1,900 SM31R 250<br>SBR1 1,900 SM31RL 1,700<br>SBRXD1 1,900 SM31RMHS 180<br>SBRD1 1,900 SM31RLMHS 1,100<br>MAXI-BEAM ECONO-BEAM<br>RSBR 1,400 SE61R 60<br>RSBRSR 150 SE61RMHS 50<br>VALUE-BEAM Others<br>SMW95R 3,400 SM51RB 120<br>SMI91RQD 1,800 Q23SN6R 40<br>EZ-BEAM Q10AN6R 25<br>T18SN6R 750 Q45BB6R 900<br>T30SN6R 750<br>S12SN6R 750<br>**----- End of picture text -----**<br>


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

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

06-Feb-26 

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M12 Class 1 Laser Emitter 

## Class 1 Laser Description and Safety Information 

Laser light. Do not stare into the beam. 

Complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 56, dated May 8, 2019. 

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CLASS 1<br>LASER PRODUCT<br>**----- End of picture text -----**<br>


## 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. 

## 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 1 lasers are lasers that are safe 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. 

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. 

Class 1 Laser Characteristics Output power: ˂0.36 mW Laser wavelength: 650 nm Pulse duration: 7 µs 

## Accessories 

## Mounting Brackets 

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36<br>Assembly with mounting block and adjustable bracket<br>2 mm Shortarm hex key 65<br>3/64-in Shortarm hex key Ø6.6<br>4 Set screws<br>ie)<br>DXF, PDF, IGS, STP, PDF, IGS, STPPDF, IGS, STP, IGS, STPIGS, STP, STPSTP SS 45 61<br>**----- End of picture text -----**<br>


## SMB46X3 

- Assembly with mounting block and adjustable bracket 

- Includes: 

- CAD Files: DXF, PDF, IGS, STP, PDF, IGS, STPPDF, IGS, STP, IGS, STPIGS, STP, STPSTP 

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

06-Feb-26 

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M12 Class 1 Laser Emitter 

## SMB127 

- 36 36 

- • Mounting block only • Includes: 21 

- 3/64-in Shortarm hex key 4 Set screws 

- • CAD Files: DXF, PDF, IGS, STP Ø12.93 X 

## Quick-Disconnect Cables 

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3-pin Single-Ended M8 Female Cordsets<br>Model Length Dimensions Pinout (Female)<br>PKG3M-2 2 m (6.56 ft)<br>35 Typ.<br>PKG3M-4 4 m (13.12 ft)<br>PKG3M-5 5 m (16.4 ft) ø 9.5<br>4<br>PKG3M-7 7 m (22.96 ft)<br>M8 x 1<br>PKG3M-9 9 m (29.52 ft) 3 1<br>4.3 mm Dia 1 = Brown<br>3 = Blue<br>4 = Black<br>PKG3M-10 10 m (32.81 ft)<br>7 mm<br>58 mm<br>**----- End of picture text -----**<br>


## Retroreflective Tape 

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Model Reflectivity Factor Maximum Temperature Size<br>BRT-THG-4X4-5 0.7 +60 °C (+140 °F) 100 × 100 mm (package of 5)<br>Model Reflectivity Factor Maximum Temperature Size<br>BRT-THG-8.5X11-2 0.7 +60 °C (+140 °F) 216 × 280 mm (package of 2)<br>Model Reflectivity Factor Maximum Temperature Size<br>BRT-THG-18X36 0.7 +60 °C (+140 °F) 457 × 914 mm (single sheet)<br>**----- End of picture text -----**<br>


## 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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06-Feb-26