Datasheet

2
E3T
Ordering Information
Sensors [Refer to Dimensions on page 16.] Red light Infrared light
M2-mounting Sensors A set of mounting screws is included with the Sensor.
M3-mounting Sensors A set of mounting screws is not included with the Sensor. Order a Screw Set separately if required.
*1. The model number of the Emitter is expressed by adding an “L” to the set model number in the table. Example: E3T-ST11-L 2M
The model number of the Receiver is expressed by adding a “D” to the set model number in the table. Example: E3T-ST11-D 2M
*2. Values in parentheses indicate the minimum required distance between the Sensor and Reflector.
*3. Models are available either with or without the E39-R37-CA Reflector included.
Models with E39-R37-CA Reflector: E3T-SR4@-S
Models without Reflector: E3T-SR4@-C
Sensing method Appearance Sensing distance Operation mode
Model
NPN output PNP output
Through-beam
Emitter
+
Receiver
Light-ON E3T-ST31 2M E3T-ST33 2M
Dark-ON E3T-ST32 2M E3T-ST34 2M
Light-ON E3T-ST11 2M E3T-ST13 2M
Dark-ON E3T-ST12 2M E3T-ST14 2M
Light-ON E3T-ST21 2M E3T-ST23 2M
Dark-ON E3T-ST22 2M E3T-ST24 2M
Light-ON E3T-ST31F 2M E3T-ST33F 2M
Dark-ON E3T-ST32F 2M E3T-ST34F 2M
Light-ON E3T-ST11F 2M E3T-ST13F 2M
Dark-ON E3T-ST12F 2M E3T-ST14F 2M
Light-ON E3T-ST21F 2M E3T-ST23F 2M
Dark-ON E3T-ST22F 2M E3T-ST24F 2M
Light-ON E3T-FT11 2M E3T-FT13 2M
Dark-ON E3T-FT12 2M E3T-FT14 2M
Light-ON E3T-FT21 2M E3T-FT23 2M
Dark-ON E3T-FT22 2M E3T-FT24 2M
Light-ON E3T-FT11F 2M E3T-FT13F 2M
Dark-ON E3T-FT12F 2M E3T-FT14F 2M
Light-ON E3T-FT21F 2M E3T-FT23F 2M
Dark-ON E3T-FT22F 2M E3T-FT24F 2M
Retro-
reflective
Light-ON E3T-SR41 2M
*3
E3T-SR43 2M
*3
Dark-ON E3T-SR42 2M
*3
E3T-SR44 2M
*3
Diffuse-
reflective
Light-ON E3T-FD11 2M E3T-FD13 2M
Dark-ON E3T-FD12 2M E3T-FD14 2M
Limited-
reflective
Light-ON E3T-SL11 2M E3T-SL13 2M
Dark-ON E3T-SL12 2M E3T-SL14 2M
Light-ON E3T-SL21 2M E3T-SL23 2M
Dark-ON E3T-SL22 2M E3T-SL24 2M
BGS-
reflective
Light-ON E3T-FL11 2M E3T-FL13 2M
Dark-ON E3T-FL12 2M E3T-FL14 2M
Light-ON E3T-FL21 2M E3T-FL23 2M
Dark-ON E3T-FL22 2M E3T-FL24 2M
(
)
*1
2 m
(Sensitivity Adjustment
Unit can be used.)
1 m
(Sensitivity Adjustment
Unit can be used.)
300 mm
2 m
1 m
300 mm
500 mm
300 mm
500 mm
300 mm
Using the E39-R4 Reflector
provided 200 mm [30 mm]
*2
Using the E39-R37-CA
100 mm [10 mm]
*2
5 to 30 mm
5 to 15 mm
5 to 30 mm
1 to 15 mm
1 to 30 mm
Sensing method Appearance Sensing distance Operation mode
Model
NPN output PNP output
Through-beam
Emitter
+
Receiver
Light-ON E3T-ST11M 2M E3T-ST13M 2M
Dark-ON E3T-ST12M 2M E3T-ST14M 2M
Light-ON E3T-ST21M 2M E3T-ST23M 2M
Dark-ON E3T-ST22M 2M E3T-ST24M 2M
Light-ON E3T-ST11MF 2M E3T-ST13MF 2M
Dark-ON E3T-ST12MF 2M E3T-ST14MF 2M
Light-ON E3T-ST21MF 2M E3T-ST23MF 2M
Dark-ON E3T-ST22MF 2M E3T-ST24MF 2M
Diffuse-
reflective
Light-ON E3T-FD11M 2M E3T-FD13M 2M
Dark-ON E3T-FD12M 2M E3T-FD14M 2M
Limited-
reflective
Light-ON E3T-SL11M 2M E3T-SL13M 2M
Dark-ON E3T-SL12M 2M E3T-SL14M 2M
Light-ON E3T-SL21M 2M E3T-SL23M 2M
Dark-ON E3T-SL22M 2M E3T-SL24M 2M
(
)
*1
1 m
300 mm
1 m
300 mm
5 to 30 mm
5 to 15 mm
5 to 30 mm