4
Standard Photoelectric Sensors
Rating and Specifications
Item
Through-beam
Retro-reflective
Diffuse-reflective
Side-view
Flat
Side-view
Flat
NPN
PNP
NPN
PNP
NPN
PNP
NPN
PNP
E3T-ST11
E3T-ST12
E3T-ST21
E3T-ST22
E3T-ST13
E3T-ST14
E3T-ST23
E3T-ST24
E3T-FT11
E3T-FT12
E3T-FT21
E3T-FT22
E3T-FT13
E3T-FT14
E3T-FT23
E3T-FT24
E3T-SR41
E3T-SR42
E3T-SR43
E3T-SR44
E3T-FD11
E3T-FD12
E3T-FD13
E3T-FD14
Sensing distance
E3T-ST1
@
E3T-ST2
@
1 m
300 mm
E3T-FT1
@
E3T-FT2
@
500 mm
300 mm
200 mm (30 mm)
with E39-R4
*1
100 mm (10 mm)
with E39-R37-CA
*1
*1. Values in parentheses indicate the minimum required distance between Sensor and Reflector.
5 to 30 mm
(50 x 50 mm white paper)
Standard sensing object
Opaque, 2 mm dia. min.
Opaque, 1.3 mm dia. min. Opaque, 27 mm dia. min. ---
Minimum detectable
object (typical)
2 mm dia opaque object
1.3 mm dia opaque object 2 mm dia. (sensing dis-
tance of 100 mm)
0.15 mm dia. (sensing
distance of 10 mm)
Hysteresis (white paper) ---
6 mm max.
Black/white error
---
Directional angle
Emitter:
2° to 20°
Receiver: 2° to 70°
Emitter:
3° to 25°
Receiver: 3° min.
2° to 20°
---
Light source
(wavelength)
Red LED (“Pin-point” LED)
λ
= 650 nm
Power supply voltage
12 to 24 VDC ±10%, ripple (p-p) 10% max.
Current consumption
Emitter:
10 mA max.
Receiver: 20 mA max.
20 mA max.
Control output
Load power supply voltage: 26.4 VDC max.
Load current: 50 mA max.
(residual voltage: 2 V max. for load current of 10 to 50 mA, 1 V max. for load current of less than 10 mA)
Open collector output
Light ON: E3T-
@@@
1 and E3T-
@@@
3
Dark ON: E3T-
@@@
2 and E3T-
@@@
4
Protection circuits
Power supply and control output reverse polarity
protection
Output short-circuit protection
Power supply and control
output reverse polarity
protection
Output short-circuit pro-
tection, Mutual interrefer-
ence prevention, surge
suppressor
Power supply and control
output reverse polarity
protection
Output short-circuit pro-
tection, Mutual interrefer-
ence prevention
Response time
Operate or reset: 1 ms max.
Ambient illumination
Incandescent lamp: 5,000 lx max.
Sunlight:
10,000 lx max.
Ambient temperature
range
Operating: -25 to 55 °C
Storage:
-40 to 70 °C (with no icing or condensation)
Ambient humidity range
Operating: 35% to 85%
Storage:
35% to 95% (with no condensation)
Insulation resistance
20 M
Ω
min. at 500 VDC
Dielectric strength
1,000 VAC, 50/60 Hz for 1 min
Vibration resistance
Destruction: 10 to 2,000 Hz, 1.5 mm double amplitude or 300 m/s
2
for 0.5 hrs each in X, Y, and Z directions
Shock resistance
Destruction: 1,000 m/s
2
3 times each in X, Y, and Z directions
Degree of protection
IP67 (IEC60529)
Connection method
Pre-wired (standard length: 2 m)
Weight
Approx. 40 g
Approx. 20 g
Materials
Case
PBT (polybutylene terephthalate)
Display
window
Denatured polyarylate
Lens
Denatured polyarylate
Methacrylic resin
Denatured polyarylate
Accessories
Instruction manual, Installation screws (Side-view Models: M2 x 14, Flat Models: M2 x 8), Nuts,
Spring washers, Flat washers