EX-29B

## Amplifier Built-in 

Ultra-compact Photoelectric Sensor EX-20 SERIES Ver.2 

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Ver.2<br>[|<br>**----- End of picture text -----**<br>


* The contents of this catalog are as of October 2017. For the latest information, please visit our company website. 

2022.6 

Ultra-compact Photoelectric Sensor Amplifier Built-in **EX-20 SERIES Ver.2** 

2 

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Ver.2<br>—_<br>**----- End of picture text -----**<br>


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Recognition<br>(Excluding 5 m cable length type)<br>Certified<br>(Some models only)<br>PNP output<br>type available<br>**----- End of picture text -----**<br>


## **Miniature-sized and still mountable with M3 screws** 

## **Miniaturization by using single chip optical IC** 

## **Incorporates a sensitivity adjuster even in this size** 

The beam-receiving photodiode and 10.5 mm 8.2 mm The sensor incorporates a sensitivity the A/D conversion circuit have been 0.413 in 0.323 in adjuster in spite of its miniature size. fabricated on a single chip optical IC 19 mm It is convenient when you need fine (full custom). Hence, in spite of its 0.748 in adjustment. Further, the receiver of the miniature size, it has a performance thru-beam, side sensing type sensor and reliability which is equal to or incorporates an operation mode switch better than the conventional product. which can change the output operation. Q: 

The sensor incorporates a sensitivity adjuster in spite of its miniature size. It is convenient when you need fine adjustment. Further, the receiver of the thru-beam, side sensing type sensor incorporates an operation mode switch 

## ~~I~~ **BASIC PERFORMANCE** 

## **Long sensing range** 

The **EX-20** series achieves long distance sensing [thru-beam type: 2 m 6.562 ft, retroreflective type: 200 mm 7.874 in (when using the attached reflector), diffuse reflective type: 160 mm 6.299 in], despite its miniature size. Hence, it is usable even on a wide conveyor. 

**Thru-beam type** 

~~r~~ **2 m 6.562 ft** ~~n~~ **Retroreflective type 200 mm 7.874 in Diffuse reflective type 160 mm 6.299 in** ~~—~~ 

## **Clear beam spot using red LED dot light source** 

The emission area of a dot light source is smaller than that of a conventional LED flat light source, and it is possible to design a high power, narrow beam. Since a red LED dot light source is used, the red beam spot is clear even at a far place, so that alignment and confirmation of sensing position is easy. Further, since the thru-beam type, too, incorporates a visible narrow beam, it can also reliably detect small parts, such as, chip components, lead frames, etc. 

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such as, chip components, lead frames, etc.<br>EX-28□<br>o e<br>Setting<br>distance:<br>80 mm<br>ø5 mm<br>EX-26□ ø0.197 in 3.150 in<br>spot<br>ø1 mmø0.039 in Setting<br>spot distance:<br>10 mm<br>0.394 in<br>|<br>**----- End of picture text -----**<br>


Ultra-compact Photoelectric Sensor **EX-20 SERIES Ver.2** 

3 

## ~~a~~ **APPLICATIONS** 

**Detecting presence of chip Checking protrusion of wafer components** 

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Sensing objects from an opening<br>**----- End of picture text -----**<br>


## **BASIC PERFORMANCE** ~~es~~ = **Electric power saving** * 

The **EX-20** series achieves reductions in power consumption of up to 65 %. These sensors contribute to environmental friendliness. 

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er<br>A maximum  35 %  reduction<br>compared to conventional<br>sensors<br>*Effective from production<br> in April 2011.<br>**----- End of picture text -----**<br>


## **ENVIRONMENTAL RESISTANCE** 

## **Waterproof IP67 (IEC)** 

The sensors features an IP67 rating to allow their use in process lines where water is used or splashed. Rust-resistant stainless steel sensor mounting brackets are available. 

Note:  If water splashes on the sensor during sensing operation, it may sense water as an object. 

## **Incorporated an inverter countermeasure circuit*** 

The **EX-20** series become significantly stronger against inverter light and other extraneous light. 

*Effective from production in April 2011. 

## ~~a~~ **MOUNTING** 

## **Identical size** 

Front sensing type of **Thru-beam type Diffuse reflective type** thru-beam type and diffuse reflective type sensors have identical appearance. Moreover, since the mounting holes are symmetrical with respect to the beam axis center, the design becomes easy. 10 mm 10 mm 0.394 in 0.394 in 

## **Mounting section reinforced** 

It can be tightened with M3 screws. Moreover, metal inserts have been provided in the mounting holes so that the product is not damaged even in case of excess tightening. 

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Side sensing type Front sensing type<br>Metal inserts<br>Mountable with M3 screw<br>**----- End of picture text -----**<br>


## ~~ee~~ **OPTIONS** 

## **Universal sensor mounting bracket is available** 

Universal sensor mounting bracket **MS-EXL2-4** (for **EX-22** / **23** / **26** / **28** / **29□** ) and **MS-EX20-5** (for **EX-23□** only) which can freely adjust the height and the angle of the sensor is available. 

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Height adjustment Angle adjustment<br>fF S|<br>Height adjustment:<br>15 mm<br>0.591 in<br>**----- End of picture text -----**<br>


## **Mounting spacer for front sensing type is available** 

Mounting of the front sensing type is possible from the rear side by using the mounting spacer. 

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


## **Slit mask is available** 

ø0.5 mm ø0.020 in round slit mask and 0.5 × 3 mm 0.020 × 0.118 in rectangular slit mask are available for both side sensing type and front sensing type sensors. 

4 _ 

Ultra-compact Photoelectric Sensor **EX-20 SERIES Ver.2** 

## **FUNCTIONS** 

## **Bright 2-color indicator** 

A bright 2-color indicator has been incorporated in all types. (Orange LED: Operation indicator, Green LED: Stability indicator) 

## **VARIETIES** 

## **Two types for suitable mounting** 

Two types, side sensing type and front sensing type sensors are available. Select depending on the place of mounting. 

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Side sensing type Front sensing type<br>(With sensitivity adjuster) (Without sensitivity adjuster)<br>**----- End of picture text -----**<br>


## **ORDER GUIDE** 

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Model No.<br>Type Appearance Sensing range Output Output operation<br>(Note 3)<br>EX-21A NPN open-collector transistor<br>Light-ON<br>1 m EX-21A-PN PNP open-collector transistor<br>3.281 ft<br>EX-21B NPN open-collector transistor<br>Dark-ON<br>EX-21B-PN PNP open-collector transistor<br>EX-23 NPN open-collector transistor<br>2 m  Switchable either<br>6.562 ft Light-ON or<br>Dark-ON<br>EX-23-PN PNP open-collector transistor<br>o—<br>EX-29A NPN open-collector transistor<br>Light-ON<br>30 to 200 mm  EX-29A-PN PNP open-collector transistor<br>1.181 to 7.874 in<br>EX-29B NPN open-collector transistor<br>(Note 1)  Dark-ON<br>—<— EX-29B-PN PNP open-collector transistor<br>EX-22A NPN open-collector transistor<br>Light-ON<br>5 to 160 mm  EX-22A-PN PNP open-collector transistor<br>0.197 to 6.299 in<br>EX-22B NPN open-collector transistor<br>(Note 2)  Dark-ON<br>——— EX-22B-PN PNP open-collector transistor<br>EX-24A NPN open-collector transistor<br>Light-ON<br>2 to 25 mm  EX-24A-PN PNP open-collector transistor<br>0.079 to 0.984 in  EX-24B NPN open-collector transistor<br>(Convergent point: 10 mm 0.394 in) Dark-ON<br>EX-24B-PN PNP open-collector transistor<br>—————— EX-26A NPN open-collector transistor<br>Light-ON<br>6 to 14 mm  EX-26A-PN PNP open-collector transistor<br>0.236 to 0.551 in<br>(Convergent point: 10 mm 0.394 in) EX-26B NPN open-collector transistor Dark-ON<br>—————— EX-26B-PN PNP open-collector transistor<br>EX-28A NPN open-collector transistor<br>Light-ON<br>45 to 115 mm EX-28A-PN PNP open-collector transistor<br>1.772 to 4.528 in<br>EX-28B NPN open-collector transistor<br>Dark-ON<br>= EX-28B-PN PNP open-collector transistor<br>NOTE: Mounting bracket is not supplied with the sensor. Please select from the range of optional sensor mounting brackets<br>(four types) or universal sensor mounting bracket. (Refer to p.6)<br>BC<br>Notes: 1) The sensing range of the retroreflective type sensor is specified for the  RF-200  reflector. 200 mm<br>Further, the sensing range is the possible setting range for the reflector. Reflector cannot Actual sensing range 7.874 in<br>The sensor can detect an object less than 30 mm 1.181 in away. be placed of the sensor<br>However, if the reflector is set 100 mm 3.937 in or less away, the sensing object should be  in this range 30 mm 1.181 inSetting range<br>opaque. of the reflector<br>2) In case of using this product at a sensing range of 50 mm 1.969 in or less, take care that the<br>sensitivity adjustment range becomes extremely narrow.<br>3) The model No. with “““ D ” shown on the label is the receiver.  P ” shown on the label affixed to the thru-beam type sensor is the emitter,  Sensor Reflector + Reflector<br>Front sensing<br>Thru-beam<br>Side sensing<br>Retroreflective Side sensing<br>Side sensing<br>Diffuse reflective<br>Front sensing<br>Diffused beam type<br>Convergent reflective<br>Side sensing<br>Small spot beam type<br>Side sensing<br>Narrow-view reflective Long distance spot beam type<br>**----- End of picture text -----**<br>


- 3) The model No. with “““ **D** ” shown on the label is the receiver. **P** ” shown on the label affixed to the thru-beam type sensor is the emitter, 

Ultra-compact Photoelectric Sensor **EX-20 SERIES Ver.2** 

5 

## ~~BE~~ **ORDER GUIDE** 

## **Package without reflector** 

Retroreflective type is also available without the reflector **RF-200** . When ordering this type, suffix “ **-Y** ” to the model No. 

- (e.g.) Without reflector type of **EX-29A-PN** is “ **EX-29A-PN-Y** ”. 

## **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 for NPN output type (including package without reflector of retroreflective type sensor). When ordering this type, suffix “ **-C5** ” to the model No. 

- (e.g.) 5 m 16.404 ft cable length type of **EX-29A-Y** is “ **EX-29A-Y-C5** ”. 

## **Accessory** 

- **RF-200** (Reflector) 

## **OPTIONS** 

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Round slit mask<br>Designation Model No. Description Fitted on the front face of the sensor with one-touch.<br>a<br>= OS-EX20-05 Slit on one side • Sensing range: 200 mm • Min. sensing object: ø2.6 mm 7.874 inø0.102 in • OS-EX20-05 • OS-EX20E-05<br>Slit size ø0.5 mm<br>0.020 in Slit on both sides • Sensing range: 40 mm 1.575 in<br>a • Min. sensing object: ø0.5 mm ø0.020 in<br>OS-EX20E-05 Slit on one side • Sensing range: 350 mm • Min. sensing object: ø3 mm 13.780 inø0.118 in<br>Slit size ø0.5 mm<br>0.020 in Slit on both sides • Sensing range: 70 mm 2.756 in<br>• Min. sensing object: ø0.5mm ø0.020 in<br>OS-EX20-05×3 Slit on one side • Sensing range: 600 mm • Min. sensing object: ø2.6 mm 23.622 inø0.102 in<br>Slit size 0.5 × 3 mm<br>0.020 × 0.118 in Slit on both sides • Sensing range: 300 mm 11.811 in [ci]<br>i • Min. sensing object: 0.5 × 3 mm 0.020 × 0.118 in [s]<br>Rectangular slit mask<br>OS-EX20E-05×3 Slit on one side • Sensing range: 800 mm • Min. sensing object: ø3 mm 31.496 inø0.118 in Fitted on the front face of the sensor with one-touch.<br>Slit size 0.5 × 3 mm<br>0.020 × 0.118 in Slit on both sides • Sensing range: 400 mm 15.748 in • OS-EX20-05×3 • OS-EX20E-05×3<br>| • Min. sensing object: 0.5 × 3 mm 0.020 × 0.118 in<br>ReflectorFor retroreflective  RF-210 • Sensing range: 50 to 400 mm 1.969 to 15.748 in<br>type sensor only • Min. sensing object: ø30 mm ø1.181 in<br>Reflector  Protective mounting bracket for  RF-210<br>mounting bracket MS-RF21-1 It protects the reflector from damage and maintains alignment.<br>• Ambient temperature:<br>–25 to +50 °C –13 to +122 °F • Sensing range:<br>RF-11 • Ambient humidity: 35 to 85 % RH 70 to 200 mm<br>2.756 to 7.874 in<br>Reflective tape Notes ie<br>For retroreflective  •  Keep the tape free from stress. If it is<br>type sensor only pressed too much, its capability may Reflector Reflector mounting bracket<br>deteriorate. • Sensing range:<br>RF-12 •  Do not cut the tape.  60 to 280 mm • RF-210 11 mm • MS-RF21-1<br>It will deteriorate the sensing  2.362 to 11.024 in 33.3 mm 0.433 in<br>performance. 12.8 1.311 in Two M3 (length 12 mm<br>mm 0.472 in) screws with<br>0.504 washers are attached.<br>in<br>| iOe Reflective tape oe i<br>• RF-11 • RF-12<br>0.7 mm 0.7 mm<br>30 mm 0.028 in 0.028 in<br>1.181 in<br>8 mm<br>0.315 in<br>- 25 mm wa<br>0.984 in<br>30 mm<br>1.181 in<br>For front sensing type<br>Round slit mask For thru-beam type  sensor only<br>For side sensing type<br>For front sensing type<br>Rectangular slit mask For thru-beam type   sensor only<br>For side sensing type<br>**----- End of picture text -----**<br>


Ultra-compact Photoelectric Sensor **EX-20 SERIES Ver.2** 

6 

## **OPTIONS** 

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Designation Model No. Description<br>Back angled mounting bracket for front sensing type sensor<br>MS-EX20-1<br>(The thru-beam type sensor needs two brackets.)<br>Foot angled mounting bracket for side sensing type sensor<br>MS-EX20-2<br>(The thru-beam type sensor needs two brackets.)<br>Sensor mounting<br>bracket<br>L-shaped mounting bracket for front sensing type sensor<br>MS-EX20-3<br>(The thru-beam type sensor needs two brackets.)<br>Back angled mounting bracket for side sensing type sensor<br>MS-EX20-4<br>(The thru-beam type sensor needs two brackets.)<br>For   EX-22 □/ 23 □/ 26 □/<br>Universal sensor MS-EXL2-4 EX-28 □/ 29 □ It can adjust the height and the angle<br>of the sensor.<br>mounting bracket<br>(The thru-beam type sensor needs<br>(Note 1) MS-EX20-5 For  EX-23 □ only two brackets.)<br>Mounting spacer<br>For front sensing type  MS-EX20-FS It is used when mounting the front sensing type from the rear side.<br>sensor only (One set consists of 10 pcs.)<br>Sensor checker CHX-SC2 It is useful for beam alignment of thru-beam type sensors. The optimum<br>receiver position is given by indicators, as well as an audio signal.<br>**----- End of picture text -----**<br>


Notes: 1)  Note that the axis position of **EX-23□** is different when replacing the mounting bracket **MS-EX20-5** with **MS-EXL2-4** . 

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Sensor mounting bracket<br>**----- End of picture text -----**<br>


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• MS-EX20-1 • MS-EX20-2<br>Material:<br>Stainless steel (SUS304)<br>Two M3 (length 5 mm 0.197 in) Material: Stainless steel (SUS304)<br>pan head screws [stainless  Two M3 (length 14 mm 0.551 in) screws with<br>steel (SUS304)] are attached.<br>washers [stainless steel (SUS304)] are attached.<br>**----- End of picture text -----**<br>


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• MS-EX20-3 • MS-EX20-4<br>Material:<br>Stainless steel (SUS304) Material: Stainless steel (SUS304)<br>Two M3 (length 5 mm 0.197 in) Two M3 (length 14 mm 0.551 in) screws with<br>pan head screws [stainless  washers [stainless steel (SUS304)] are attached.<br>steel (SUS304)] are attached.<br>**----- End of picture text -----**<br>


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


## **Sensor checker** 

## **Universal sensor mounting bracket** 

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• CHX-SC2 • MS-EX20-FS • MS-EXL2-4<br>One set consists of 10 pcs. Fine<br>adjustment<br>±3°<br>Sensor checker<br>MS-EX20-FS<br>POWER  CHX-SC2<br>LEVEL<br>**----- End of picture text -----**<br>


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• MS-EX20-5<br>**----- End of picture text -----**<br>


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Fine<br>adjustment<br>±3°<br>360° rotation<br>Height adjustment:<br>15 mm 0.591 in<br>Two M3 (length 14 mm 0.551 in)<br>screws with washers, one M3 (length<br>10 mm 0.394 in) hexagon-socket<br>head bolt [stainless steel (SUS)], and<br>one M3 hexagon nut [stainless steel<br>(SUS)] are attached.<br>**----- End of picture text -----**<br>


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360° rotation<br>Material: Die-cast zinc alloy<br>Height adjustment:<br>15 mm 0.591 in<br>Two M3 (length 12 mm 0.472 in)<br>screws with washers [stainless<br>steel (SUS)], one M3 (length<br>10 mm 0.394 in) hexagon-socket<br>head bolt [stainless steel (SUS)],<br>and one M3 hexagon nut [stainless<br>steel (SUS)] are attached.<br>**----- End of picture text -----**<br>


Material: Nylon 6 

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Material: Die-cast zinc alloy<br>**----- End of picture text -----**<br>


Ultra-compact Photoelectric Sensor **EX-20 SERIES Ver.2** 

7 

## **SPECIFICATIONS** 

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Convergent reflective Narrow-view reflective<br>Thru-beam Retroreflective Diffuse reflective<br>Type Diffused beam type Small spot beam type Long distance spot beam type<br>Front sensing Side sensing Side sensing Side sensing Front sensing Side sensing Side sensing<br>Model No. Light-ON EX-21A ( -PN ) EX-23 ( -PN ) EX-29A ( -PN ) EX-22A ( -PN ) EX-24A ( -PN ) EX-26A ( -PN ) EX-28A ( -PN )<br>Item (Note 2) Dark-ON EX-21B ( -PN ) (Note 3) EX-29B ( -PN ) EX-22B ( -PN ) EX-24B ( -PN ) EX-26B ( -PN ) EX-28B ( -PN )<br>CE marking directive compliance EMC Directive, RoHS Directive<br>5 to 160 mm 0.197  2 to 25 mm 0.079 to  6 to 14 mm 0.236 to 0.551 in 45 to 115 mm 1.772 to 4.528 in<br>1 m 2 m 30 to 200 mm to 6.299 in (Note 5)  0.984 in (Conv. point: 10  (Conv. point: 10 mm 0.394 in) with white  with white non-glossy paper (100<br>Sensing range 3.281 ft 6.562 ft 1.181 to 7.874 in with white non-glossy  mm 0.394 in) with white  non-glossy paper (50 × 50 mm 1.969 ×  × 100 mm 3.937 × 3.937 in), spot<br>(Note 4) paper (200 × 200 mm)  non-glossy paper (50 × 50  1.969 in), spot diameter ø1 mm ø0.039 in diameter ø5 mm ø0.197 in with<br>(7.874 × 7.874 in) mm) (1.969 × 1.969 in) with setting distance 10 mm 0.394 in setting distance 80 mm 3.150 in<br>Min. ø2.6 mm opaque objectø0.102 in Min. ø3 mm opaque objectø0.118 in ø15 mm ø0.591 in or  Opaque, translucent or  Min. ø0.1 mm ø0.004 in Min. ø0.1 mm ø0.004 in Opaque, translucent or transparent object (Note 6)<br>Sensing object Setting distance  Setting distance  more opaque or tran  transparent  copper wire copper wire Min. ø1 mm ø0.039 in<br>between emitter and  between emitter and  slucent object object  Setting distance:  Setting distance:  copper wire at setting<br>receiver: 1 m 3.281 ft receiver: 2 m 6.562 ft (Note 4, 6) (Note 6) 10 mm 0.394 in 10 mm 0.394 in distance 80 mm 3.150 in<br>– 15 % or less of operation distance [50 × 50 mm 1.969 × 1.969 in ( EX-22 □: 200 × 200 mm<br>Hysteresis 7.874 × 7.874 in,  EX-28 □: 100 × 100 mm 3.937 × 3.937 in) (with white non-glossy paper)]<br>Repeatability 0.05 mm 0.002 in or less 0.5 mm  0.3 mm  0.1 mm 0.004 in or less 0.05 mm 0.002 in or less 0.3 mm<br>(perpendicular to sensing axis) 0.020 in or less 0.012 in or less (Setting distance: 10 mm 0.394 in) (Setting distance: 10 mm 0.394 in) 0.012 in or less<br>Supply voltage 12 to 24 V DC ± 10 %  Ripple P-P 10 % or less<br>Current consumption Emitter: 10 mA or less, Receiver: 10 mA or less 13 mA or less 15 mA or less<br><NPN output type> <PNP output type><br>NPN open-collector transistor PNP open-collector transistor<br>• Maximum sink current: 50 mA • Maximum source current: 50 mA<br>Output<br>• Applied voltage: 30 V DC or less (between output and 0 V) • Applied voltage: 30 V DC or less (between output and +V)<br>• Residual voltage:  2 V or less (at 50 mA sink current) • Residual voltage:  2 V or less (at 50 mA source current)<br>1 V or less (at 16 mA sink current) 1 V or less (at 16 mA source current)<br>Utilization category DC-12 or DC-13<br>Short-circuit protection Incorporated<br>Response time 0.5 ms or less<br>Operation indicator Orange LED (lights up when the output is ON) (thru-beam type: located on the receiver)<br>Green LED (lights up under stable light received condition<br>Stability indicator Green LED (lights up under stable light received condition or stable dark condition)<br>or stable dark condition), located on the receiver<br>– Continuously variable adjuster,  –<br>Sensitivity adjuster located on the emitter Continuously variable adjuster Continuously variable adjuster<br>Operation mode switch – Located on the receiver –<br>Pollution degree 3 (Industrial environment)<br>Protection IP67 (IEC)<br>Ambient temperature –25 to +55 °C –13 to +131 °F (No dew condensation or icing allowed), Storage: –30 to +70 °C –22 to +158 °F<br>Ambient humidity 35 to 85 % RH, Storage: 35 to 85 % RH<br>Ambient illuminance Incandescent light: 3,000 ℓx or less at the light-receiving face<br>Voltage withstandability 1,000 V AC for one min. between all supply terminals connected together and enclosure<br>Insulation resistance 20 MΩ, or more, with 250 V DC megger between all supply terminals connected together and enclosure<br>Vibration resistance 10 to 500 Hz frequency, 3 mm 0.118 in double amplitude (20 G max.) in X, Y and Z directions for two hours each<br>Shock resistance 500 m/s [2]  acceleration (50 G approx.) in X, Y and Z directions three times each<br>Emitting element Red LED (modulated)<br>Peak emission wavelength 640 nm 0.025 mil 650 nm 0.026 mil 680 nm 0.027 mil 680 nm 0.027 mil 680 nm 0.027 mil 650 nm 0.026 mil 650 nm 0.026 mil<br>Material Enclosure: Polyarylate, Lens: Polyarylate<br>Cable 0.1 mm [2]  3-core (thru-beam type sensor emitter: 2-core) cabtyre cable, 2 m 6.562 ft long<br>Cable extension Extension up to total 50 m 164.042 ft is possible with 0.3 mm [2] , or more, cable (thru-beam type: both emitter and receiver).<br>Net weight (each emitter and receiver): 20 g approx.<br>Weight Net weight: 20 g approx., Gross weight: 45 g approx.<br>Gross weight: 60 g approx.<br>Accessories – Adjusting screwdriver:  RF-200  (Reflector): 1 pc. Adjusting screwdriver:  – Adjusting screwdriver: 1 pc.<br>1 pc. Adjusting screwdriver: 1 pc. 1 pc.<br>Notes: 1) Where measurement conditions have not been specified precisely, the conditions used were an  Reflector cannot Actual sensing range 200 mm 7.874 in<br>ambient temperature of +23 °C +73.4 °F. be placed of the sensor<br>2) Model Nos. having the suffix “ -PN ” are PNP output type. in this range 30 mm 1.181 in<br>Setting range<br>3) Either Light-ON or Dark-ON can be selected by the operation mode switch (located on the receiver). of the reflector<br>4)  The sensing range and the sensing object of the retroreflective type sensor are specified for the<br>RF-200  reflector. Further, the sensing range is the possible setting range for the reflector. The<br>sensor can detect an object less than 30 mm 1.181 in away. However, if the reflector is set 1.181 in away. However, if the reflector is set  away. However, if the reflector is set<br>Sensor Reflector Reflector<br>Environmental resistance<br>**----- End of picture text -----**<br>


- 4)  The sensing range and the sensing object of the retroreflective type sensor are specified for the **RF-200** reflector. Further, the sensing range is the possible setting range for the reflector. The sensor can detect an object less than 30 mm 1.181 in away. However, if the reflector is set 1.181 in away. However, if the reflector is set  away. However, if the reflector is set 100 mm 3.937 in or less away, the sensing object should be opaque. 

- 5) In case of using this product at a sensing range of 50 mm 1.969 in or less, take care that the sensitivity adjustment range becomes extremely narrow. 

- 6) Make sure to confirm detection with an actual sensor before use. 

Ultra-compact Photoelectric Sensor **EX-20 SERIES Ver.2** 

8 

## **I/O CIRCUIT AND WIRING DIAGRAMS** 

## **NPN output type** 

## **I/O circuit diagram** 

## **Wiring diagram** 

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Color code<br>(Brown) +V<br>D1 Color code<br>D2 (Black) Output (Note)  Load   +  12 to 24 V  DC<br>Tr  Z D  50 mA  max.   –   ± 10 % Brown<br>(Blue) 0 V  Load<br>Black (Note)   +  12 to 24 V  DC<br> –   ± 10 %<br>Internal circuit  Users’ circuit<br>Blue<br>Note:  The emitter of the thru-beam type sensor does not incorporate the output.<br>Note:  The emitter of the thru-beam type sensor does not incorporate the<br>Symbols ... D1: Reverse supply polarity protection diode black wire.<br>D2: Reverse output polarity protection diode<br>ZD : Surge absorption zener diode<br>Tr : NPN output transistor<br>PNP output type<br>I/O circuit diagram Wiring diagram<br>Color code<br>(Brown) +V<br>Tr  Z D  50 mA  max.   +  12 to 24 V  DC  Color code<br>D2 (Black) Output (Note)   –   ± 10 % Brown<br>Load<br>D1 (Blue) 0 V<br>Black (Note)   +  12 to 24 V  DC<br>Load   –   ± 10 %<br>Internal circuit  Users’ circuit<br>Blue<br>Sensor circuit<br>Sensor circuit<br>**----- End of picture text -----**<br>


**==> picture [226 x 15] intentionally omitted <==**

**----- Start of picture text -----**<br>
Note:  The emitter of the thru-beam type sensor does not incorporate the<br>black wire.<br>**----- End of picture text -----**<br>


Note:  The emitter of the thru-beam type sensor does not incorporate the output. 

Symbols ... D1: Reverse supply polarity protection diode D2: Reverse output polarity protection diode ZD : Surge absorption zener diode Tr : PNP output transistor 

**==> picture [226 x 15] intentionally omitted <==**

**----- Start of picture text -----**<br>
Note:  The emitter of the thru-beam type sensor does not incorporate the<br>black wire.<br>**----- End of picture text -----**<br>


## **SENSING CHARACTERISTICS (TYPICAL)** 

## **EX-21□  EX-23□  EX-29□  EX-22□** 

## **Correlation between setting distance and excess gain** 

**==> picture [513 x 305] intentionally omitted <==**

**----- Start of picture text -----**<br>
100  100 100<br>50  50 50<br>EX-23 □  EX-29 □ EX-22 □<br>10  10 10<br>5  5 5<br>EX-21 □<br>1  1 1<br>0  1  2  3  4  5  0 200 400 600 800 1,000 0 50 100 150 200 250<br>3.281 6.562 9.843 13.123 16.404 7.874 15.748 23.622 31.496 39.370 1.969 3.937 5.906 7.874 9.843<br>Setting distance L (m ft) Setting distance L (mm in) Setting distance L (mm in)<br>EX-21□  Thru-beam type<br>Parallel deviation Angular deviation Parallel deviation with round slit  Parallel deviation with rectangular slit<br>masks (ø0.5 mm ø0.020 in) masks (0.5 × 3 mm 0.020 × 0.118 in)<br>800<br>31.496<br>Slit on one<br>side<br>1 1 200 Slit on one<br>3.281 3.281 Emitter 7.874 600  side<br>23.622<br>θ<br>L<br>Slit on both  400<br>0.51.640 Emitter 1.6400.5 Receiver 1003.937 sides Emitter 15.748 Slit on both  sides  Emitter<br>200<br>ℓ L ℓ L 7.874 ℓ L<br>Receiver Receiver Receiver<br>0 0 0 0<br>100 50 0 50 100 40 20 0 20 40 20 10 0 10 20 40  20  0  20  40<br>3.937 Left1.969 Center 1.969Right 3.937 LeftOperating angle θ ( ° )Center Right 0.787 0.394Left Center 0.394Right 0.787 1.575 Left 0.787 Center  0.787Right  1.575<br>Operating point ℓ (mm in) Operating point ℓ (mm in) Operating point ℓ (mm in)<br>Excess gain  Excess gain Excess gain<br>)<br>)ftSetting distance L (m )ftSetting distance L (m )Setting distance L (mmin Setting distance L (mmin<br>**----- End of picture text -----**<br>


Ultra-compact Photoelectric Sensor **EX-20 SERIES Ver.2** 

9 

## **SENSING CHARACTERISTICS (TYPICAL)** 

## **EX-23□** 

Thru-beam type **Parallel deviation with round Parallel deviation with rectangular slit slit masks (ø0.5 mm ø0.020 in)ø0.020 in)) masks (0.5 × 3 mm 0.020 × 0.118 in)0.020 × 0.118 in))** 

**==> picture [512 x 498] intentionally omitted <==**

**----- Start of picture text -----**<br>
Parallel deviation Angular deviation Parallel deviation with round  Parallel deviation with rectangular slit<br>slit masks (ø0.5 mm ø0.020 in)ø0.020 in)) masks (0.5 × 3 mm 0.020 × 0.118 in)0.020 × 0.118 in))<br>400<br>15.748 Slit on one<br>side<br>2 2 1<br>6.562 6.562 11.811300 3.281 Slit on one<br>side<br>200<br>1 Emitter 1 Emitter 7.874 Emitter 0.5 Slit on both  Emitter<br>3.281 3.281 1.640 sides<br>ℓ  L θ L 100 Slit on both  ℓ  L ℓ  L<br>3.937 sides<br>Receiver Receiver Receiver Receiver<br>0 0 0 0<br>100 50 0 50 100 100 50 0 50 100 20 10 0 10 20 40 20 0 20 40<br>3.937 1.969 1.969 3.937 Left Center Right 0.787 0.394 0.394 0.787 1.575 0.787 0.787 1.575<br>Left Center Right Operating point θ ( ° ) Left Center Right Left Center Right<br>Operating point ℓ (mm in) Operating point ℓ (mm in) Operating point ℓ (mm in)<br>EX-29□ Retroreflective type<br>Parallel deviation Angular deviation<br>Sensor Reflector<br>200  200 angulardeviation angulardeviation<br>7.874 7.874<br>Sensor Reflector<br>angular angular<br>Reflector  deviation deviation<br>100  ( RF-200 )  100 Reflector Reflector<br>3.937 3.937 ( RF-200 ) ( RF-200 )<br> θ<br> ℓ   L  L θ L<br>Sensor  Sensor Sensor<br>0  0<br>20  10  0  10  20  40 20 0 20 40<br>0.787 0.394 0.394 0.787 Left Center Right<br>Left  Center  Right  Operating angle θ ( ° )<br>Operating point ℓ (mm in)<br>EX-22□ Diffuse reflective type<br>Sensing field Correlation between sensing object size and sensing range<br>200<br>7.874 As the sensing object size becomes smaller than the<br>150 5.906 Gray non-glossy paper Lightness: 6  White non- glossy paper  2007.874 standard size (white non-glossy paper 200 × 200 mm 7.874 × 7.874 inin the left graph.), the sensing range shortens, as shown<br>100 3.937 200 × 200 mm7.874 × 7.874 inNon-glossy paper 100 a × a mm White non-glossy paper a × a in<br>3.937<br>50   ℓ   L  L<br>1.969<br>Sensor  Sensor<br>0<br>4  2  0  2  4  0 50 100 150 200<br>0.157 0.079 0.079 0.157 1.969 3.937 5.906 7.874<br>Left  Center  Right  White non-glossy paper<br>Operating point ℓ (mm in) side length a (mm in)<br>)<br>)ftSetting distance L (m )ftSetting distance L (m Setting distance L (mmin )ftSetting distance L (m<br>)in ) in<br>Setting distance L (mm Setting distance L (mm<br>)<br>in )<br>in<br>Setting distance L (mm Sensing range L (mm<br>**----- End of picture text -----**<br>


Convergent reflective type 

## **EX-24□** 

## **Sensing fields** 

**==> picture [254 x 142] intentionally omitted <==**

**----- Start of picture text -----**<br>
•  Horizontal (left and right) direction •  Vertical (up and down) direction<br>40 40<br>1.575 1.575 50 × 50 mm 1.969 × 1.969 in<br>White non-glossy paper<br>30  30  6 mm 0.236 in  ℓ L<br>1.181 1.181<br>Sensor<br>20  50 × 50 mm 20<br>0.787 1.969 × 1.969 in 0.787<br>White<br>non-glossy<br>10  paper 10<br>0.394 8 ℓmm 0.315 inL  0.394<br>Sensor<br>0  0<br>4  2  0  2  4  4  2  0  2  4<br>0.157 0.079 0.079 0.157 0.157 0.079 0.079 0.157<br>Left  Center  Right  Left  Center  Right<br>Operating point ℓ (mm in) Operating point ℓ (mm in)<br>) in )in<br>Setting distance L (mm Setting distance L (mm<br>**----- End of picture text -----**<br>


Ultra-compact Photoelectric Sensor **EX-20 SERIES Ver.2** 

10 

## **SENSING CHARACTERISTICS (TYPICAL)** 

## **EX-24□** 

## **Correlation between lightness and sensing range** 

Convergent reflective type 

## **Correlation between material (50 × 50 mm 1.969 × 1.969 in) and sensing range** 

**==> picture [506 x 675] intentionally omitted <==**

**----- Start of picture text -----**<br>
40 80<br>1.575 The sensing region (typical) is  3.150 The bars in the graph indicate<br>represented by oblique lines  the sensing range (typical)<br>30 in the left figure. However, the  60  for the respective material.<br>1.181 sensitivity should be set with  2.362 However, there is a slight<br>enough margin because of  variation in the sensing range<br>20 slight variation in products. 40  depending on the product.<br>0.787 1.575 Further, if there is a reflective<br>Sensing region object (conveyor, etc.) in the<br>0.39410 0.78720  background of the sensing<br>object, since it affects the<br>0 0  sensing, separate it by more<br>N2 N4 N6 N8 than twice the sensing range<br>Dark Lightness  Light Lightness shown on the left  shown in the left graph.<br>may differ slightly from the<br>N1 N2 N3 N4 N5 N6 N7 N8 N9 actual object condition.<br>EX-26□ Convergent reflective type<br>Sensing fields<br>•  Horizontal (left and right) direction •  Vertical (up and down) direction<br>20  20<br>0.787 0.787 50 × 50 mm 1.969 × 1.969 in<br>White non-glossy paper<br>0.59115  0.59115  13.5 mm  ℓ  L<br>0.531 in<br>50 × 50 mm  Sensor<br>10  1.969 × 1.969 in 10<br>0.394 White non-  0.394<br>glossy paper<br>0.1975  4.1 mm   ℓ   L  0.1975<br>0.161 in<br>Sensor<br>0  0<br>1  0.5  0  0.5  1  1  0.5  0  0.5  1<br>0.039 0.020 0.020 0.039 0.039 0.020 0.020 0.039<br>Left  Center  Right  Left  Center  Right<br>Operating point ℓ (mm in) Operating point ℓ (mm in)<br>Correlation between lightness and sensing range Correlation between material (50 × 50 mm 1.969 × 1.969 in) and sensing range<br>20<br>0.787 The sensing region (typical) is  The bars in the graph indicate the<br>represented by oblique lines  sensing range (typical) for the<br>0.59115 in the left figure. However, the sensitivity should be set with  1.57540  respective material. However, there is a slight variation in the sensing<br>enough margin because of  range depending on the product.<br>0.39410 Sensing region slight variation in products.The graph is drawn for the  20  Further, if there is a reflective object (conveyor, etc.) in the background<br>0.1975 maximum sensitivity setting. 0.787 of the sensing object, since it affects the sensing, separate it by<br>more than twice the sensing range<br>shown in the left graph, or adjust<br>0 0<br>N2 N4 N6 N8 the sensitivity adjuster.<br>Dark Lightness  Light Lightness shown on the left  The graph is drawn for the<br>N1 N2 N3 N4 N5 N6 N7 N8 N9 may differ slightly from the actual object condition. maximum sensitivity setting.<br>EX-28□ Narrow-view reflective type<br>Sensing field Correlation between sensing object size and sensing range<br>200  200<br>7.874 7.874 As the sensing object size becomes smaller than the<br>Approach direction of black non-glossy paper  standard size (white non-glossy paper 100 × 100 mm<br>150  150 3.937 × 3.937 in), the sensing range shortens, as<br>5.906 White non-  5.906 shown in the left graph.<br>glossy paper  Black non-glossy paper<br>Lightness: 6  a × a mm a × a in<br>100  100 White non-glossy<br>3.937 100 × 100 mm  3.937 paper<br>3.937 × 3.937 in<br>Non-glossy paper<br>1.96950  4.1 mm   ℓ   L  1.96950 L<br>0.161 i n<br>Sensor<br>Sensor<br>0<br>4  2  0  2  4  0 50 100 150 200<br>0.157 0.079 0.079 0.157 1.969 3.937 5.906 7.874<br>Left  Center  Right  White non-glossy paper<br>Operating point ℓ (mm in) side length a (mm in)<br>) in )in<br>Sensing range L (mm Sensing range L (mm<br>Distance to  convergent point<br>Black-painted  non-glossy plate  Gray non-glossy  paper (N5)  White non-glossy   paper  Stainless steel plate (SUS304)  Aluminum plate  Aluminum-evaporated  mirror  Distance to   convergent point<br>)in ) in<br>Setting distance L (mm  Setting distance L (mm<br>) in )in<br> Distance to convergent point<br>Sensing range L (mm Sensing range L (mm<br> Distance to convergent point<br>Black-painted  non-glossy plate  Gray non-glossy  paper (N5)  White non-glossy   paper  Stainless steel plate (SUS304)  Aluminum plate  Aluminum-evaporated  mirror<br>) in ) in<br>Setting distance L (mm Sensing range L (mm<br>**----- End of picture text -----**<br>


Ultra-compact Photoelectric Sensor **EX-20 SERIES Ver.2** 

11 

## **PRECAUTIONS FOR PROPER USE** 

- Never use this product as a sensing device for personnel protection. 

- In case of using sensing devices for personnel protection, use products which meet laws and standards, such as OSHA, ANSI or IEC etc., for personnel protection applicable in each region or country. 

## **Mounting** 

- Mount using M3 screws. The tightening torque should be 0.5 N·m or less. 

**Front sensing Side sensing** M3 screws M3 pan head screws (Note) 

Note: When mounting the front sensing type sensor, use M3 pan head screws without washers, etc. 

- When mounting the front sensing type from the backside, fit the mounting spacer ( **MS-EX20-FS** ) and fix with screws. 

## **Mounting method** 

- 1   Fit the mounting 2 Align the mounting holes of spacer on the sensor. the mounting spacer and the Mounting sensor and mount with M3 spacer (Optional) screws. The tightening torque should be 0.5 N·m or less. M3 screws 

## **Sensitivity adjustment (side sensing type only)** 

**==> picture [240 x 184] intentionally omitted <==**

**----- Start of picture text -----**<br>
Step Sensitivity adjuster Description<br>MAX<br>1 Turn the sensitivity adjuster fully counterclockwise to<br>the minimum sensitivity position (• mark).<br>MAX<br>In the light received condition, turn the sensitivity<br>2 adjuster slowly clockwise and confirm the point  A<br>A where the sensor enters the “Light” state operation.<br>In the dark condition, turn the sensitivity adjuster further<br>B MAX clockwise until the sensor enters the “Light” state operation<br>and then bring it back to confirm point  B  where the sensor<br>3 just returns to the “Dark” state operation.<br>A If the sensor does not enter the “Light” state operation even when the<br>sensitivity adjuster is turned fully clockwise, this extreme position is point  B .<br>B MAX<br>4 The position at the middle of points  A  and  B  is the<br>optimum sensing position.<br>Optimum position A<br>**----- End of picture text -----**<br>


Notes: 1) Use the attached adjusting screwdriver to turn the adjuster slowly. Turning with excessive strength will damage the adjuster. 

## **Stability indicator** 

- The stability indicator (green) lights up when the incident light intensity has sufficient margin with respect to the operation level. 

If the incident light intensity level is such that the stability indicator lights up, stable sensing can be done without the light received operation and the light interrupted operation being affected by a change in ambient temperature or supply voltage. 

**==> picture [236 x 136] intentionally omitted <==**

**----- Start of picture text -----**<br>
Operation of stability indicator<br>Output operation<br>Incident<br>light<br>margin<br>Output 15 % approx.<br>operation 100<br>level 25 % approx.<br>Light<br>interruption<br>margin<br>0<br>0<br>Setting distance<br>Lights up<br>operation<br>Light received<br>Lights off<br>operation<br>Lights up Light interrupted Incident light intensity (%)<br>**----- End of picture text -----**<br>


## **Glossy object sensing (EX-29□)** 

- Please take care of the following points when detecting materials having a gloss. 

**==> picture [188 x 115] intentionally omitted <==**

**----- Start of picture text -----**<br>
Reflector<br>Glossy surface<br>Sensing object<br>10 to 30 °<br>Sensor<br>L Make L sufficiently long<br>**----- End of picture text -----**<br>


## **Wiring** 

- Excess bending of the cable or stress applied to the cable may disconnect the internal lead wire. 

## **Others** 

- Do not use during the initial transient time (50 ms) after the power supply is switched on. 

- If sensors are mounted close together and the ambient temperature is near the maximum rated value, provide for enough heat radiation / ventilation. 

- If a reflective object is present in the background, the sensing of **EX-28□** may be affected. When setting the sensor, make sure to confirm that the reflective object has no effect. In case the reflective object affects the sensing, take measures such as removing the reflective object or coloring it in black, etc. 

2) In case of using **EX-22** □ at a sensing distance of 50 mm 1.969 in or less, take care that the sensitivity adjustment range becomes extremely narrow. 

## **Operation mode switch (EX-23□ only)** 

**==> picture [240 x 83] intentionally omitted <==**

**----- Start of picture text -----**<br>
Switch<br>Description<br>position<br>L<br>Light-ON mode is obtained when the operation mode switch<br>D (located on the receiver) is turned fully clockwise (L side).<br>L<br>Dark-ON mode is obtained when the operation mode switch<br>D (located on the receiver) is turned fully counterclockwise (D side).<br>**----- End of picture text -----**<br>


Note: Operation mode switch should be turned fully till it stops. 

Ultra-compact Photoelectric Sensor **EX-20 SERIES Ver.2** 

12 

## **DIMENSIONS (Unit: mm in)** 

## **EX-21□** 

Sensor 

**==> picture [229 x 157] intentionally omitted <==**

**----- Start of picture text -----**<br>
Stability indicator (Green)<br>(Note)<br>0.1774.5 Beam axis  Operation indicator (Orange)<br>16 (Note)<br>0.630<br>18<br>9 0.709<br>0.354<br>3 0.118<br>2-ø3.2 ø0.126 mounting holes<br>2.3 10 ø2.5 ø0.098 cable,<br>0.091 0.394 2 m 6.562 ft long<br>**----- End of picture text -----**<br>


Note: Not incorporated on the emitter. 

**==> picture [32 x 13] intentionally omitted <==**

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


## **EX-29□ EX-22□ EX-26□  EX-28□** 

**==> picture [239 x 178] intentionally omitted <==**

**----- Start of picture text -----**<br>
Operation indicator (Orange)<br>12.3<br>Stability indicator (Green)  0.48410 Sensitivity adjuster<br>0.394<br>8.2 2.8<br>0.323 0.110<br>Beam-  3 0.118<br>receiving part  11<br>Beam-  0.433<br>emitting part  5 16 22<br>0.197 0.630 0.866<br>5.5<br>0.217<br>3 0.118<br>2-ø3.2 ø0.126<br>mounting holes<br>5.3<br>0.209 ø2.5 ø0.098 cable, 2 m 6.562 ft long<br>**----- End of picture text -----**<br>


**RF-200** Reflector (Accessory for the retroreflective type sensor) 

**==> picture [182 x 102] intentionally omitted <==**

**----- Start of picture text -----**<br>
1.5<br>9.6 6.5 0.256 0.059<br>0.378 4.6 0.181 ø2.3<br> ø0.091<br>17.5<br>0.689 (13) 13<br>7.75 (0.512) 0.512<br>0.305<br>2.3<br>0.091 3.5 0.138<br>ø3.2 ø0.126 mounting hole<br>Material:  Acrylic (Reflector)<br>ABS (Base)<br>**----- End of picture text -----**<br>


**==> picture [32 x 13] intentionally omitted <==**

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


## **EX-23□** 

**==> picture [236 x 165] intentionally omitted <==**

**----- Start of picture text -----**<br>
Operation indicator (Orange)<br>(Note 1)<br>Operation mode switch<br>Stability indicator (Green) (Note 1)  0.41310.5 (Note 2)<br>8.2 2.8<br>0.323 0.110<br>3 0.118<br>Beam axis  9.5<br>0.374<br>13 19<br>6.5 0.512 0.748<br>0.256<br>3 0.118<br>2-ø3.2 ø0.126<br>mounting holes<br>ø2.5 ø0.098 cable,<br>3.5 2 m 6.562 ft long<br>0.138<br>**----- End of picture text -----**<br>


Notes: 1) Not incorporated on the emitter. 2) It is the sensitivity adjuster on the emitter. 

**==> picture [208 x 13] intentionally omitted <==**

**----- Start of picture text -----**<br>
EX-24□<br>**----- End of picture text -----**<br>


**==> picture [32 x 13] intentionally omitted <==**

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


**==> picture [223 x 155] intentionally omitted <==**

**----- Start of picture text -----**<br>
Stability indicator (Green)<br>Beam-emitting part<br>Beam-receiving part  0.630 16 Operation indicator (Orange)<br>4.5<br>0.177 5<br>0.197<br>18<br>9 0.709<br>0.354<br>3 0.118<br>2-ø3.2 ø0.126<br>mounting holes<br>ø2.5 ø0.098 cable,<br>2.3 10  2 m 6.562 ft long<br>0.091 0.394<br>**----- End of picture text -----**<br>


Reflector (Optional) 

## **RF-210** 

**==> picture [167 x 155] intentionally omitted <==**

**----- Start of picture text -----**<br>
33.3<br>1.311<br>12.8<br>0.504<br>M3 nut mounting holes<br>Reflector (for mounting at the back)<br>11<br>0.433 Base<br>3.2 2-ø3.4 ø0.134 thru-holes<br>0.126 25 (for mounting at the side)<br>0.984<br>10<br>0.394 2-ø3.4 ø0.134 holes, 6 0.236 deep<br>(for mounting at the back)<br>2-M3 nut mounting holes<br>(for mounting at the side)<br>**----- End of picture text -----**<br>


Material:  Acrylic (Reflector) ABS (Base) Two M3 (length 8 mm 0.315 in) screws with washers and two nuts are attached. 

Ultra-compact Photoelectric Sensor **EX-20 SERIES Ver.2** 

13 

## **DIMENSIONS (Unit: mm in)** 

**==> picture [239 x 124] intentionally omitted <==**

**----- Start of picture text -----**<br>
RF-11 Reflective tape (Optional)<br>30 1.181<br>(28)(1.102) 0.70.028<br>8<br>0.315<br>(6) Effective<br>(0.236) reflecting surface Adhesive tape<br>Material: Acrylic<br>**----- End of picture text -----**<br>


**==> picture [239 x 138] intentionally omitted <==**

**----- Start of picture text -----**<br>
RF-12 Reflective tape (Optional)<br>30 1.181<br>0.7<br>(28)(1.102) 0.028<br>25 (23)<br>0.984 (0.906)<br>Effective<br>reflecting surface Adhesive tape<br>Material: Flexible polyvinyl chloride<br>**----- End of picture text -----**<br>


Reflector mounting bracket for **RF-210** (Optional) 

## **MS-RF21-1** 

## **Assembly dimensions** 

**==> picture [469 x 202] intentionally omitted <==**

**----- Start of picture text -----**<br>
23<br>5.5 0.906<br>0.217 23<br>5.5 0.906<br>0.217<br> ø36 50<br> ø1.417 1.969<br> ø36 50<br> ø1.417 1.969<br>30°<br>1620° 30°<br>0.630<br>10<br>0.394<br>3.2 3.5<br>0.126 0.138 10 20°<br>R7.5 0.394<br>R0.295<br>ø25 46<br>ø0.984 25 1.811 46<br>12.5 0.492 0.984 1.811 25<br>13 0.984<br>0.512 t 1.2<br>t 0.047 12.8 0.504<br>13 0.512<br>Material: Stainless steel (SUS304)<br>Two M3 (length 12 mm 0.472 in)<br>screws with washers are attached.<br>**----- End of picture text -----**<br>


**==> picture [48 x 7] intentionally omitted <==**

**----- Start of picture text -----**<br>
MS-EX20-1<br>**----- End of picture text -----**<br>


**==> picture [201 x 180] intentionally omitted <==**

**----- Start of picture text -----**<br>
t 1.5<br>t 0.059 10.5<br>0.413<br>5 0.197<br>29.5<br>1.161<br>10 11 5<br>0.394 0.433 0.197<br>4-M3 × 0.5 0.020 3.2 2<br>0.126 0.079<br>12 9 19<br>0.472 0.354 0.748<br>2<br>0.079<br>Material: Stainless steel (SUS304)<br>Two M3 (length 5 mm 0.197 in) pan head screws<br>[stainless steel (SUS304)] are attached.<br>**----- End of picture text -----**<br>


Sensor mounting bracket (Optional) 

## **Assembly dimensions** 

Mounting drawing with **EX-21□** 

**==> picture [186 x 174] intentionally omitted <==**

**----- Start of picture text -----**<br>
(1.2)<br>t 1.5 10.5 (0.047)<br>t 0.059 0.413<br>5 0.197 (6.5)(0.256)<br>4.5 29.5<br>0.177 1.161<br>16 5<br>0.630 0.197<br>(12)(0.472)<br>16<br>0.630 3.2 2 0.0790.126<br>Beam-receivingpart 0.0591.5 0.3549 10.50.413 0.74819<br>2<br>0.079<br>10 11<br>0.394 0.433<br>**----- End of picture text -----**<br>


Ultra-compact Photoelectric Sensor **EX-20 SERIES Ver.2** 

14 

## **DIMENSIONS (Unit: mm in)** 

**==> picture [134 x 13] intentionally omitted <==**

**----- Start of picture text -----**<br>
Sensor mounting bracket (Optional)<br>**----- End of picture text -----**<br>


## **MS-EX20-2** 

## **Assembly dimensions** 

**==> picture [490 x 224] intentionally omitted <==**

**----- Start of picture text -----**<br>
1 0.3158 3.50.138 2 3-M3 × 0.50.020 2.50.098 Mounting drawing with the receiver of  EX-23□<br>3.2 0.126<br>2 3 10.5<br>0.079 0.118 13 0.3 0.413<br>0.512 16 0.012<br>12.5 0.630 3.2<br>0.2957.5 0.492 11.6 0.126 (24.1)<br>R0.512R130.1263.2 0.63014°16 0.1263.2 t 0.059t 1.5 0.0982.5 10° 2.50.098 0.4570.1183 2 0.2957.5 0.492 [12.5] (0.949)<br>0.079<br>3.2 0.126<br>3.5 8<br>0.138 0.315<br>14.5 16<br>0.571 0.630 R13<br>14° R0.512<br>34<br>1.339 Beam-receiving part<br>t 0.047t 1.2 0.1183 0.63016 0.51213<br>34<br>Material: Stainless steel (SUS304) 24 1.339<br>Two M3 (length 14 mm 0.551 in)  0.945 17.5<br>screws with washers [stainless steel 0.689<br>(SUS304)] are attached.<br>t 1.2<br>t 0.047<br>**----- End of picture text -----**<br>


## **MS-EX20-3** 

Sensor mounting bracket (Optional) 

## **Assembly dimensions** 

**==> picture [477 x 191] intentionally omitted <==**

**----- Start of picture text -----**<br>
t 0.059t 1.5 Mounting drawing with the  receiver of  EX-21□<br>18.5 t 1.5<br>14 0.728 t 0.059<br>0.551<br>0.3549 4-M3 × 0.50.020 0.78720 (0.047)(1.2)<br>3.2 0.126 10 6.5<br>2 0.079 0.394 0.256<br>9 19 12<br>0.354 0.748 0.472 14 4.5<br>0.551 0.177 16 3.5<br>9 0.630 0.138<br>2 3.2 0.126 0.354 11.5<br>0.079 2 0.079 0.453 1.5 0.059<br>Material: Stainless steel (SUS304) 9 Beam-receiving  10.5 19<br>Two M3 (length 5 mm 0.197 in) pan head screws  0.354 part 0.413 0.748<br>[stainless steel (SUS304)] are attached.<br>2<br>0.079<br>10<br>0.394<br>**----- End of picture text -----**<br>


## **MS-EX20-4** 

Sensor mounting bracket (Optional) 

## **Assembly dimensions** 

**==> picture [491 x 210] intentionally omitted <==**

**----- Start of picture text -----**<br>
1 2<br>3-M3 × 0.50.020 2.5 Mounting drawing with the receiver of  EX-23□<br>0.098 10.5<br>0.413<br>0.3<br>13 0.012<br>0.512 16<br>0.630<br>0.3150.512813 3 3.2 0.1180.126R0.512R130.1263.2 t 0.0470.669t 1.214°17 t 0.059t 1.5 0.0982.5 10° 2.50.098 8.2(0.969)(24.6)0.47612.1 13 0.66917 t 1.2<br>0.323 8 0.512 8 t 0.047<br>0.315 3.2 R13 0.315<br>12 14.5 0.126 R0.512 14°<br>0.472 23 0.571 3 0.118<br>0.906 Beam-receiving part 3.5 0.138<br>5<br>0.1183 0.1970.1183 8 Material: Stainless steel (SUS304) 4.5 0.1770.47212 0.51213 0.90623<br>0.315 Two M3 (length 14 mm 0.551 in) screws<br>with washers [stainless steel (SUS304)] are<br>attached. 3<br>0.118<br>**----- End of picture text -----**<br>


Ultra-compact Photoelectric Sensor **EX-20 SERIES Ver.2** 

15 

## **DIMENSIONS (Unit: mm in)** 

## **MS-EXL2-4** 

**==> picture [168 x 13] intentionally omitted <==**

**----- Start of picture text -----**<br>
Universal sensor mounting bracket (Optional)<br>**----- End of picture text -----**<br>


**==> picture [502 x 252] intentionally omitted <==**

**----- Start of picture text -----**<br>
1 1 0.059.5 2 Assembly dimensions<br>Mounting drawing with  EX-22□ / 26□ / 28□ / 29□<br>4<br>0.157 11.2 9.5<br>4.1 1.5 0.441 8.4 0.331 0.374 14<br>0.161 0.059 3° ø8.5 0.551<br>1.12228.5 1.00425.5 31.5 0.1203.05 0.51213 1.00425.5 2-hexagon nut seatsø0.335 15.50.610 0.1503.85.5 0.2170.47212 (8.8) 3.5 0.138<br>1.240 3 0.118 5.5 0.217 (0.264)(6.7) (0.346)0.2175.5 5.9 3 0.2320.118<br>15 Beam-receiving part<br>1.18130 2-ø3.2 mountinø0.126g holes0.2366 14 0.0590.5911.5 0.76819.5 4 ø3.3 thru-holes0.157ø0.130 Beam-emitting part 10.50.413 0.63016 1.24031.5(0.591)(15) (Note)<br>0.551<br>3.05 0.120<br>ø8.5 3.45<br>ø0.335 0.136 ø8.5 30<br>15 12 ø0.335 1.181<br>0.591 0.472<br>3 Material: Die-cast zinc alloy<br>3-M3 × 0.5 0.020 Two M3 (length 14 mm 0.551 in) screws with washers, one M3  6 9.5<br>2.50.098 (length 10 mm steel (SUS)], and one M3 hexagon nut [stainless steel (SUS)] 0.394 in) hexagon socket-head bolt [stainless  mountin2-ø3.2 ø0.126g holes 0.55114 0.236 0.3740.76819.5<br>13 are attached.<br>0.512 0.63016 Note: This is the adjustable range of the movable part.<br>t 0.059t 1.5 2.5 0.09810° 2.50.098<br>Material: Stainless steel (SUS)<br>**----- End of picture text -----**<br>


## **MS-EX20-5** 

## Universal sensor mounting bracket (Optional) 

## **Assembly dimensions** 

**==> picture [502 x 180] intentionally omitted <==**

**----- Start of picture text -----**<br>
1 2 2<br>0.079 0.1022.6 3.2 0.126 Mounting drawing with the receiver of  EX-23□<br>ø7<br>2.6 ø0.276<br>0.102<br>6 0.236<br>0.1614.1 1.50.059 2.2 0.087 3 0.1183 0.118 0.3358.5 0.1263.2 0.47212<br>0.88622.5 0.76819.5 0.92523.5 1.00425.5 2-M3 × 0.50.63016 0.3749.5 0.51213 0.76819.5 0.88622.5 2-hexagonnut seats 5.50.2170.61015.5 5.5 0.217 Beam-receiving part(7.3)(0.287) (6.7)(0.264)0.1183 3 2.2 0.11813 0.087 (15)<br> ø7 ø0.2761.18130 0.0200.2767 2-ø3.2 mounting holesø0.126  0.2360.551146 0.472120.1770.0594.51.50.59115 19.5 0.0792 2-ø3.3 thru-holes 0.1574 8 0.315ø0.130 2-ø3.2ø0.126mountingholes 0.472 ø7 ø0.27612 0.591150.2566.5 0.5121.1811.004 [25.5] 30 (0.591)(Note)<br>0.768<br>6 8.5<br>Material: Die-cast zinc alloy Material: Nylon 6 0.236 14 0.335 19.5<br>Two M3 (length 12 mm 0.472 in) screws with washers [stainless 0.472 in) screws with washers [stainless ) screws with washers [stainless  0.551 0.768<br>steel (SUS)], one M3 (length 10 mm 0.394 in) hexagon socket-0.394 in) hexagon socket-) hexagon socket- Note: This is the adjustable range of the movable part.<br>**----- End of picture text -----**<br>


Two M3 (length 12 mm 0.472 in) screws with washers [stainless 0.472 in) screws with washers [stainless ) screws with washers [stainless steel (SUS)], one M3 (length 10 mm 0.394 in) hexagon socket-0.394 in) hexagon socket-) hexagon sockethead bolt [stainless steel (SUS)], and one M3 hexagon nut [stainless steel (SUS)] are attached. 

## **MS-EX20-FS** 

Mounting spacer (Optional) 

## **Assembly dimensions** 

Mounting drawing with the receiver of **EX-21□** 

**==> picture [423 x 124] intentionally omitted <==**

**----- Start of picture text -----**<br>
16<br>0.1774.5 2.50.098 2-ø3.4 mounting holesø0.134 0.6300.1654.2 10 0.394 Beam-receiving part 16<br>4.5 0.3 0.630<br>10.7 0.177 0.012<br>4.9 0.3158 0.421<br>0.193<br>0.2366 2 0.3549 0.90623<br>0.079 8<br>0.315<br>ø2.5 ø0.098<br>6<br>0.236 10<br>0.394<br>**----- End of picture text -----**<br>


**==> picture [64 x 6] intentionally omitted <==**

**----- Start of picture text -----**<br>
Material: Polycarbonate<br>**----- End of picture text -----**<br>


## Disclaimer 

The applications described in the catalog are all intended for examples only. The purchase of our products described in the catalog shall not be regarded as granting of a license to use our products in the described applications. We do NOT warrant that we have obtained some intellectual properties, such as patent rights, with respect to such applications, or that the described applications may not infringe any intellectual property rights, such as patent rights, of a third party. 

**==> picture [97 x 43] intentionally omitted <==**

## Panasonic Industry Co., Ltd. 

Industrial Device Business Division 

7-1-1, Morofuku, Daito-shi, Osaka 574-0044, Japan industrial.panasonic.com/ac/e/ 

ⓒPanasonic Industry Co., Ltd. 

2022.6 

Printed in Japan