E3T-SR21 2M Omron, E3T-SR21 2M Datasheet

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E3T-SR21 2M

Manufacturer Part Number
E3T-SR21 2M
Description
Industrial Photoelectric Sensors 20cmRetro L/On NPN
Manufacturer
Omron
Type
Photoelectric Sensorr
Datasheet

Specifications of E3T-SR21 2M

Features
FAO technology
Sensing Method
Retroreflective
Sensing Distance
10 mm to 200 mm
Light Source
Red LED
Connection
Prewired Cable
Output Configuration
NPN Light ON
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Photoelectric Sensor with Built-in
Amplifier Contributes to Equipment
Downsizing
• Ultracompact and Thin Photoelectric Sensor with Built-in
• Easy optical axis adjustment with emitter fluctuation of ±2% max.
• Product lineup includes Coaxial Retro-reflective Models that
• Product lineup includes
• Product lineup of models with a variety of connection
* BGS (Background Suppression) technology prevents detecting background objects.
Features
E3T-SR4@
Compactness and High Performance
• Perform detection from a small hole.
With a coaxial optical system, the lens diameter is only 2 mm.
Sufficient incident light is obtained even through a small hole.
The Coaxial Retro-reflective Sensor can be used for reliable application with positioning.
• Improved Stability of Short-distance Detection
A detection distance as short as 10 mm can be used with a Tape Reflector.
Detection is stable through a hole whether the distance is 10 mm or 100 mm (except in combination with the
E39-R4).
E3T-FL1@/-FL2@: The Slimmest BGS (Background Suppression) Reflective Photoelectric
Sensors in the World
Ultra slim at 3.5 mm and
black/white error of only
15%.
For example, the E3T-
FL1@ can stably detect a
black object at 12 mm
without being affected by a
white background at
20 mm.
OMRON provides BGS
performance sharper than
the previous Convergent-
reflective Sensors.
Amplifier
for Through-beam Models.
support positioning applications.
background (E3T-FL1@/-FL2@).
specifications.
(e.g., robot cable and Smartclick pre-wired connectors)
Photoelectric Sensor with Built-in Amplifier (Ultracompact and Thin Type)
E3T
Be sure to read Safety Precautions on
page 14.
: Retro-reflective Sensor with Enhanced
BGS*
E3T-FL1
Reflective Models unaffected by
3.5mm
Rated sensing distance
Detected
12mm
15mm
Not detected
20mm
Black
object
White
background
Dramatic Improvement in Black/White Error
(mm)
25
20
15
10
5
0
(BGS Reflective Model)
White paper Black paper White paper Black paper
E3T-FL1
(Convergent-reflective Model)
E3T-SL1
CSM_E3T_DS_E_14_1
1

Related parts for E3T-SR21 2M

E3T-SR21 2M Summary of contents

Page 1

... Improved Stability of Short-distance Detection A detection distance as short can be used with a Tape Reflector. Detection is stable through a hole whether the distance 100 mm (except in combination with the E39-R4). E3T-FL1@/-FL2@: The Slimmest BGS (Background Suppression) Reflective Photoelectric Sensors in the World Ultra slim at 3.5 mm and black/white error of only Not detected 15% ...

Page 2

... Through-beam Sensors are normally sold in sets that include both the Emitter and Receiver. Orders for individual Emitters and Receivers are accepted. (Modifications are required for some models. Ask your OMRON representative for details.) *2. M3 mounting models are also available. These models have the M-suffix. Example: E3T-ST11M 2M Contact your OMRON representative for detail. ...

Page 3

... Dark-ON E3T-ST24 Light-ON E3T-FT13 500 mm Dark-ON E3T-FT14 Through- beam (flat) Light-ON E3T-FT23 300 mm Dark-ON E3T-FT24 E3T-ST11-M1TJ 0.3M Connection Basic model number specification E3T-ST11-M1TJ E3T-ST11 5M 0.3M M12 pre-wired Smartclick Con- Pre-wired (cable nector (cable length (cable length length: 0.3 m) -M1TJ 0.3M 5M ● ...

Page 4

... Light-ON E3T-FL23 Dark-ON E3T-FL24 * The sensing distance depends on the Reflector that is used. The sensing distance is 200 E39-R4 is used and 100 E39-R37-CA is used. E3T-ST13-M1TJ E3T-ST13 5M E3T-ST13R 2M 0.3M M12 pre-wired Smartclick Con- Pre-wired (cable Pre-wired robot nector (cable length (cable length length: 0.3 m) -M1TJ 0 ...

Page 5

... Values in parentheses indicate the minimum required distance between the Sensor and Reflector. *2. The E3T-SR4@ cannot be used with the E39-R37 or E39-RS1/2/3 (without CA) Tape Reflectors. The E39-@-CA Reflector is for use only with the E3T-SR4@. It cannot be used with other Sensors. Sensitivity Adjustment Unit (A Unit is not provided with the Sensor (for the E3T-ST1@). Order a Unit separately if required ...

Page 6

... Lens Denatured polyarylate Instruction manual, Installation Phillips screws (Side-view Models: M2 × 14, Flat Models: M2 × 8), Nuts, Spring Accessories washers, Flat washers, E39-R4 (E3T-SR4@ only), E39-R37-CA (E3T-SR4@-S only) * Values in parentheses indicate the minimum required distance between the Sensor and Reflector. Appearance Cable type ...

Page 7

... Load power supply voltage: 26.4 VDC max. Load current max. (residual voltage max. for load current mA max. for load current of less than 10 mA) Control output Open-collector output @@@ Light ON: E3T- Power supply and control output reverse polarity protection Protection circuits Output short-circuit protection, Mutual interference prevention Response time Operate or reset max ...

Page 8

... Retro-reflective E3T-SR4 E3T-SR4@+E39- −10 100 200 300 400 Distance X (mm) E3T-SR4@+E39-R37-CA −20 −30 −40 E3T-ST1@ + E39-S63 Slit (Order Separately) (Enlarged graph) (A Slit is mounted to the Emitter and Receiver 0.5-dia Slit 1-dia Slit 20 0 − 120 160 200 Distance X (mm) −40 − ...

Page 9

... Distance X (mm) −10 −15 E3T-FL2 Sensing object white paper Sensing distance X (mm) −2 −4 −6 −8 −10 E3T-SL1@ (Right to Left) 20 Stainless steel 10 Glass Angle of +θ −θ inclination 0 − Angle θ (°) E3T E3T-SL2@ 4 Sensing object white paper −1 Distance X (mm) − ...

Page 10

... E3T-SL2@ (Right to Left) 40 Stainless steel 30 20 Angle of +θ −θ inclination 10 Glass 0 − Angle θ (°) E3T-FL2@ (Top to Bottom) 40 Angle of inclination +θ 30 −θ White Center paper line 20 Glass 10 Stainless steel 0 − Angle θ (°) Excess Gain vs. Set Distance Through-beam E3T-ST1@ ...

Page 11

... Set distance (mm) E3T-SL2@ 100 White paper 5 3 Operating 1 level 0.5 Black paper 0.3 0 Set distance (mm) Diffuse-reflective, Convergent-reflective E3T-FD1@, E3T-SL2@ 10 Sensing object: Pin-gauge, stainless steel 8 6 E3T-FD1 E3T-SL2 Set distance (mm) Diffuse-reflective E3T-FD1@ 100 White paper 5 3 Operating 1 level ...

Page 12

... Material BGS Reflective E3T-FL1 Material Sensing Distance Characteristics of Sensitivity Adjustment Unit (when Completing Optical Axis Adjustment) E3T-ST1@ + E39-E10 Sensitivity Adjustment Unit (Order Separately) for Emitter 3.5 3.0 2.5 2.0 Measurement pattern 2 1.5 1.0 Measurement pattern 1 0.5 0 Min. 1/3 1/2 2/3 Max. ...

Page 13

... Models numbers for Through-beam Sensors (E3T-@T@@) are for sets that include both the Emitter and Receiver. The model number of the Emitter is expressed by adding "-L" to the set model number (example: E3T-ST11-L 2M), the model number of the Receiver, by adding "-D" (example: E3T-ST11-D 2M.) Refer to Ordering Information to confirm model numbers for Emitter and Receivers. ...

Page 14

... Stable operation range* *If the E3T fs operating level is set to the stable operation range, the E3T will be in most reliable operation without being influenced by temperature change, voltage fluctuation, dust, or setting change. If the operating level cannot be set to the stable operation range, pay attention to environmen- tal changes while operating the E3T ...

Page 15

... Models numbers for Through-beam Sensors (E3T-@T@@) are for sets that include both the Emitter and Receiver. The model number of the Emitter is expressed by adding "-L" to the set model number (example: E3T-ST11-L 2M), the model number of the Receiver, by adding "-D" (example: E3T-ST11-D 2M.) Refer to Ordering Information to confirm model numbers for Emitter and Receivers. ...

Page 16

... E3T Mounting Holes 2-M2 2-M2 15 ±0.2 M12 Smartclick Pre-wired Connector Model (E3T-SR@@-M1TJ/E3T-SL@@-M1TJ/ E3T-FD@@-M1TJ M12 2.4-dia. vinyl-insulated round cable with conductors Standard length: 0.3 m e-CON Pre-wired Connector (E3T-SR@@-ECON/E3T-SL@@-ECON/ Mounting Holes E3T-FD@@-ECON) 2-M2 2-M2 5 ...

Page 17

... Emitter lens (1.5 dia.) Two, 2.2 dia. 2.4-dia. vinyl-insulated round cable with 3 conductors (Conductor cross section: 0.1 mm² (AWG27), Insulator diameter: 0.7 mm), Standard length Accessories Reflector (Provided with E3T-SR4@) E39- Material, reflective surface: acrylic Rear surface: ABS Reflector (Provided with E3T-SR4@-S) ...

Page 18

... Accessories (Order Separately) Slit for E3T-ST@@ Through-beam Models E39-S63 With Slit Attachment 7.4 9.7 Two, 2.2 dia. 1.0± 0.05 dia. 0.5± 0.05 dia. 2.7 12.6 2.7 Notch Note: Align the notch Material: 0.2-mm direction of the Slit thick stainless steel ...

Page 19

... Mounting Brackets for Side-view Models E39-L118 Material: 1.2-mm-thick stainless steel (SUS304) 20.5 R1 max. 90° 1.2 2-R2 (Two, R2) 2.4 3 (23) 15 11.5 18 3.1 2-2.2 (Two, R1. (Two, R1.1) 10 (11.2) With Mounting Bracket (Example: E3T-ST11) (Four, R2) Three 20 1.2 11.5 90° 11.5 90° 22.7 (Two, R1.7) 5 4.5 2.4 3 2-2.2 3 ...

Page 20

... Mounting Brackets for Flat Models E39-L120 4 Material: 1.2-mm-thick stainless steel (SUS304 1.2 3.2 2 With Mounting Bracket (Example: E3T-FT11) (5.4) 1.2 22.5 Four, M2 tapped holes 3.2 2.4 8 2.4 13.5 With Mounting Bracket (Example: E3T-FT11) 9 3.5 7 10.6 Two, M2 × 8 (6.4) 13.5 10.6 Two, M2 × ...

Page 21

... Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS ...

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