Model

E3ZS-T81A

Sensor type

Through-beam models

Safety category

See Applicable standards.

Standard sensing object

Opaque object: 18 mm in diameter or greater

Lens diameter

Diameter 6.7 mm/diameter 9 mm

Sensing distance

0.2 to 3 m

Response time (under stable light
 incident condition)

1.0 ms (E3ZS only)

Startup waiting time

100 ms

Power supply voltage (Vs)

12 to 24 VDC±10% (ripple p-p 10% max.) *1

Current consumption (no load)

Emitter: 15 mA max.
 Receiver: 20 mA max.

Light source (emitted wavelength)

Red LED (660 nm)

Effective aperture angle (EAA)

±5° (at 3 m)

Control output

PNP transistor output, load current: 100 mA max.
 OFF current: 0.5 mA max.
 Minimum current used: 1 mA
 Residual voltage: 1 V max. (when load current is less than 10 mA)
 Residual voltage: 2 V max. (when load current is between 10 mA and 100 mA)
 (except for voltage drop due to cable extension)

Output operation mode

Light-ON *

Input voltage

22.5 to 24 VDC: Emitter OFF (source current: 3 mA max.)
 Open or 0 to 2.5 V: Emitter ON (leakage current: 0.1 mA max.)

Indicators

Emitter: Emitting (orange)
 Receiver: Operation (orange), Stable (green)

Test functions

External test (light emission stop function by test input)

Connection method

Pre-wired cable (2 m)

Protective circuits

Power supply/output reverse connection protection, load short-circuit protection

Ambient temperature

Operating: -10 to 55°C
 Storage: -10 to 70°C
 (with no icing or condensation)

Ambient humidity

Operating: 35% to 85%, storage: 35% to 95% (with no icing or condensation)

Ambient operating light intensity

Incandescent lamp: 3000 lx max (light intensity on the receiver surface).
 Sunlight: 10,000 lx max (light intensity on the receiver surface).

Insulation resistance

20 MΩ min. (at 500 VDC)

Dielectric strength

1000 VAC 50/60 Hz 1 min

Degree of protection

IP67 (IEC standard)

Vibration
 resistance

Operating limit

5 to 150 Hz, 7 mm double amplitude/ 1 G acceleration, 10 sweeps for each X, Y,
 and Z directions (IEC TR 60721-4-3 Class 3M4)

Durability

10 to 55 Hz, 1.5 mm double amplitude, 2 hours for each X, Y and Z directions

Shock
 resistance

Operating limit

15 G acceleration, 6 ms pulse duration, 100 time for each direction of 3 mutually
 perpendicular axes (600 in total) (IEC TR 60721-4-3 Class 3M4)

Durability

500 m/s² (approx. 50 G), 3 times for each X, Y, and Z directions

Material

Case: Polybutylene terephthalate

Weight (packed state)

Approx. 120 g (for one set including 2-m cable)

Accessories

Operation manual

Applicable
 standards

Sensor only

IEC 60947-5-3 (PDDB)
 EN ISO13849-1 (PLc/Safety Category 1)

Sensor connected to
 safety controller

IEC (EN) 61496-1 Type2 ESPE
 IEC (EN) 61496-2 Type2 AOPD
 EN ISO13849-1 (PLc/Safety Category 2)