Ultra-compact Photoelectric Sensor EX-20 Ver.2 - İstanbul Otomasyon Sistemleri
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Ultra-compact Photoelectric Sensor EX-20 Ver.2


Miniature-sized and still mountable with M3 screws

Ultra-compact Photoelectric Sensor  EX-20
UL Recognaized CE Marking Korean S Mark

UL , CE , Korean S Mark Approved
CE : EMC Directive
UL : Recognition(Excluding 5 m cable length type)
Korea's S-mark certification : Some models only

Features

Miniaturization by using single chip optical IC

The beam-receiving photodiode and the A/D conversion circuit have been fabricated on a single chip optical IC (full custom). Hence, in spite of its miniature size, it has a performance and reliability which is equal to or better than the conventional product.

Miniaturization by using single chip optical IC

Incorporates a sensitivity adjuster even in this size

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 which can change the output operation.

Incorporates a sensitivity adjuster even in this size

Long sensing range

The EX-20 series achieves long distance sensing [thru-beam type: 2 m 6.562 ft, retroreflective type: 200 mm7.874 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.

Long sensing range

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.

Clear beam spot using red LED dot light source

Electric power saving

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

Waterproof IP67 (IEC)

The sensor can be hosed down because of its IP67 construction. Further, the sensor mounting bracket is also made of stainless steel.

Note:
However, take care that if it is exposed to water splashes during operation, it may detect a water drop itself.

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.

Identical size

Front sensing type of 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.

Identical size

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.

Mounting section reinforced

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.

Universal sensor mounting bracket is available

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.

Mounting spacer for front sensing type is available

Slit mask is available

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

Bright 2-color indicator

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

Two types for suitable mounting

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

Two types for suitable mounting
Title 2D CAD DATA 3D CAD DATA

EX-21□

EX-22□/26□/28□/29□

EX-23□

EX-24□

Applications

Detecting presence of chip components
Detecting presence of chip components
Checking protrusion of wafer
Checking protrusion of wafer
Sensing objects from an opening
Sensing objects from an opening

Order guide

Type Appearance Sensing range Model No.
(Note 3)
Output Output operation
Thru-beam Front sensing 1 m
3.281 ft
EX-21A NPN open-collector transistor Light-ON
EX-21A-PN PNP open-collector transistor
EX-21B NPN open-collector transistor Dark-ON
EX-21B-PN PNP open-collector transistor
Side sensing 2 m
6.562 ft
EX-23 NPN open-collector transistor Switchable either
Light-ON or
Dark-ON
EX-23-PN PNP open-collector transistor
Retroreflective Side sensing 30 to 200 mm
1.181 to 7.874 in
(Note 1)
EX-29A NPN open-collector transistor Light-ON
EX-29A-PN PNP open-collector transistor
EX-29B NPN open-collector transistor Dark-ON
EX-29B-PN PNP open-collector transistor
Diffuse reflective Side sensing 5 to 160 mm
0.197 to 6.299 in
(Note 2)
EX-22A NPN open-collector transistor Light-ON
EX-22A-PN PNP open-collector transistor
EX-22B NPN open-collector transistor Dark-ON
EX-22B-PN PNP open-collector transistor
Convergent reflective Diffused beam type Front sensing 2 to 25 mm
0.079 to 0.984 in
(Convergent point: 10 mm0.394 in)
EX-24A NPN open-collector transistor Light-ON
EX-24A-PN PNP open-collector transistor
EX-24B NPN open-collector transistor Dark-ON
EX-24B-PN PNP open-collector transistor
Small spot beam type Side sensing 6 to 14 mm
0.236 to 0.551 in
(Convergent point: 10 mm0.394 in)
EX-26A NPN open-collector transistor Light-ON
EX-26A-PN PNP open-collector transistor
EX-26B NPN open-collector transistor Dark-ON
EX-26B-PN PNP open-collector transistor
Narrow-view reflective Long distance spot beam type Side sensing 45 to 115 mm
1.772 to 4.528 in
EX-28A NPN open-collector transistor Light-ON
EX-28A-PN PNP open-collector transistor
EX-28B NPN open-collector transistor Dark-ON
EX-28B-PN PNP open-collector transistor
NOTE Mounting bracket is not supplied with the sensor. Please select from the range of optional sensor mounting brackets (four types) or universal sensor mounting bracket.
Note 1 : The sensing range of the retroreflective type sensor is 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 100 mm 3.937 in or less away, the sensing object should be opaque.
Note 2 : 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.
Note 3 : The model No. with "P" shown on the label affixed to the thru-beam type sensor is the emitter, "D" shown on the label is the receiver.
(e.g.) Emitter of EX-21A: EX-21P, Receiver of EX-21A: EX-21AD

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".

Standard type Package without reflector
EX-29A EX-29A-Y
EX-29A-PN EX-29A-PN-Y
EX-29B EX-29B-Y
EX-29B-PN EX-29B-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".

Standard type 5 m 16.404 ft cable length type
EX-21A EX-21A-C5
EX-21B EX-21B-C5
EX-23 EX-23-C5
EX-29A EX-29A-C5
EX-29B EX-29B-C5
EX-29A-Y EX-29A-Y-C5
EX-29B-Y EX-29B-Y-C5
EX-22A EX-22A-C5
EX-22B EX-22B-C5
EX-24A EX-24A-C5
EX-24B EX-24B-C5
EX-26A EX-26A-C5
EX-26B EX-26B-C5
EX-28A EX-28A-C5
EX-28B EX-28B-C5

Accessory

RF-200 (Reflector)

Reflector
 
Title 2D CAD DATA 3D CAD DATA

EX-21□

EX-22□/26□/28□/29□

EX-23□

EX-24□



Title FİLE

EX-20 Ver.2

EX SERIES


Title FİLE

Title FİLE

EX-20 User's Manual

EX-20 Series INSTRUCTION MANUAL