E3F2-R2RB41 datasheet(26/28 Pages) OMRON

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Photoelectric sensor

E3F2

Precautions

The E3F2 Photoelectric Sensor is not a safety component for ensur-

ing the safety of people which is defined in EC directive (91/368/

EEC) and covered by separate European standards or by any other

regulations or standards.

Degree of protection

The E3F2 photoelectric sensors have a degree of protection rated

with IP67. In this case, the sensors have passed the OMRON heat

shock test before the IP67-test of IEC 60529 (submersion at 1m

water depth for 30 min). Afterwards the sensors have been tested

according to the OMRON waterproof test.

Heat shock: Alternating, fast temperature changes between

-25°C and +55°C are executed for 5 cycles and 1 hour

for each temperature. Function and isolation are

checked.

Water proof:The sensors are submerged alternating in water of

+2°C and +55°C. 20 cycles with 1 hour for each tem-

perature are executed. Function, water tightness and

electrical isolation are checked.

Do not expose the photoelectric sensor to excessive shock during

installation, keeping within IP 67 standards.

Wiring

If the input/output lines of the photoelectric sensor are placed in the

same conduit or duct as power lines or high-voltage lines, the photo-

electric sensor could be induced to malfunction, or even be damaged

by electrical noise. Separate the wiring, or use shielded lines as

input/output lines to the photoelectric sensor.

Do not connect the black wire to the brown wire without a load. Direct

connection of these wires may damage the photoelectric sensor (AC

switching type).

When using the photoelectric sensor in the vicinity of an inverter

motor, ensure to connect the protective earth ground wire of the

motor to earth. Failure to ground the motor may result in malfunction

of the sensor.

When you use the photoelectric sensor at temperatures exceeding

45°C, the load current must be within the described values as shown

in the figure below.

Installation

Do not exceed a torque of

• 2.0 Nm ( 20 kgf cm) when tightening mounting nuts for plastic mod-

els

• 20.0 Nm (200 kgf cm) when tightening mounting nuts for metal mod-

els

Black

Brown

Blue

Load

Sensor

24 to 240 VAC

Operating temperature (˚C)

200

130

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