Product Category

Transparent Object Detection Sensor


Ideal for Detecting Glass Wafers and Other Transparent Objects

Sensing method


 (with MSR function) *1




E3S-R12, R62,
 R17, R67

E3S-R11, R16, R61, R66


E3S-R1E4, R1E42



E3S-R31, R36, R81, R86



Sensing distance

300 mm [100 mm] *2
 (When using E39-R1)

1 m [100 mm] *2
 (When using E39-R1)

300 mm
 (When using

1 m
 (When using E39-R1)

Standard sensing

Opaque: 75-mm dia.
 min. 0.7-mm-thick
 LCD glass boards;
 10-mm-dia., 1.0-
 mm-thick, 30-mm-
 long cylindrical
 glass objects

Opaque: 75-mm dia. min.
 0.7-mm-thick LCD
 glass boards

Opaque: 75-mm dia. min.
 10-mm-dia., 1.0-mm-thick, 30-mm-long
 cylindrical glass objects

Directional angle

3° to 10°


Light source

Infrared LED (850

Red LED (660 nm)

Infrared LED (950 nm)

Power supply voltage

10 to 30 VDC; ripple: 10% max.

12 to 24 VDC±10%; ripple: 10% max.

Current consumption

30 mA max.

40 mA max.

Control output

Load power supply voltage: 30 VDC max.
 Load current: 100 mA max. with a maximum
 residual voltage of 1 V
 Open collector output configuration
 Light-ON/Dark-ON selector switch

Load power supply voltage: 24 VDC max
 Load current: 80 mA max. with a
 maximum residual voltage: of 2 V
 NPN voltage output configuration
 Light-ON/Dark-ON cable connection

Protection circuits

Power supply reverse polarity protection, Output short-circuit protection, Mutual interference

Response time

Operate or reset: 1 ms max.

Sensitivity adjustment

Two-turn endless adjuster

One-turn adjuster

Ambient illumination
 (Receiver side)

Incandescent lamp: 5,000 lx max.
 Sunlight: 10,000 lx max.

Incandescent lamp: 3,000 lx max.
 Sunlight: 10,000 lx max.

 temperature range

Operating: 0 to 40°C, Storage: -40 to 70°C (with no icing or

Operating: -25 to 55°C
 Storage: -40 to 70°C
 (with no icing or

Ambient humidity

Operating: 35% to 85%, Storage: 35% to 95% (with no condensation)

Insulation resistance

20 MΩ min. (at 500 VDC)

Dielectric strength

1,000 VAC, 50/60 Hz for 1 min

Vibration resistance

Destruction: 10 to 55 Hz, 1.5-mm double amplitude for 2 h each in X, Y, and Z directions

Shock resistance

Destruction: 500 m/s2 for 3 times each in X, Y, and Z directions

Degree of protection

IEC 60529 IP67

Connection method

Pre-wired (standard length: 2 m)/Standard connector

Weight (packed state)

Pre-wired models: Approx. 110 g
 Standard connector: Approx. 60 g

Pre-wired models: Approx. 190 g



Polybutylene terephthalate

Zinc die-cast


Modified polyallylate



Stainless steel (SUS304)



Mounting Bracket (with screw), Adjustment
 screwdriver, Instruction manual, Reflector

Mounting Bracket (with screw),
 Adjustment screwdriver, Sensitivity
 adjuster, Instruction manual, Reflector

1. Refer to MSR function of Technical Guide (Technical version).
 2. Values in parentheses indicate the minimum required distance between the Sensor and Reflector.