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E3FZ/E3FR

Safety precautions

This product is not designed or rated for directly or

indirectly ensuring safety of persons. Do not use it for

such a purpose.

Do not use the product with voltage in excess of the

rated voltage. Excess voltage may result in malfunc-

tion or fire.

Never use the product with an AC power supply.

Otherwise, explostion may result.

When cleaning the product, do not apply a high-pres-

sure spray of water to one part of the product. Other-

wise, parts may become damaged and the degree of

protection may be degraded.

High-temperature environments may result in burn

injury.

The following precautions must be observed to ensure safe

operation of the Sensor.

Operating Environment

Do not use the Sensor in an environment where explosive or

flammable gas is present.

Connecting Connectors

Be sure to hold the connector cover when inserting or removing

the connector. Be sure to tighten the connector lock by hand;

do not use pliers or other tools. If the tightening is insufficient, the

degree of protection will not be maintained and the Sensor may

become loose due to vibration. The appropriate tightening torque

is 0.39 to 0.49 N·m for M12 connectors.

Load

Do not use a load that exceeds the rated load.

Rotation Torque for Sensitivity Adjustment

Adjust with a torque of 0.05 N·m or less.

Environements with Cleaners and Disinfectants

(e.g., Food Processing Lines)

Do not use the Sensor in environments subject to cleaners and

disifectants. They may reduce the degree of protection.

Modifications

Do not attempt to disassemble, repair, or modify the Sensor.

Outdoor Use

Do not use the Sensor in locations subject to direct sunlight.

Cleaning

Do not use thinner, alcohol, or other organic solvents. Otherwise,

the optical properties and degree of protection may be degraded.

Surface Temperature

Burn injury may occur. The Sensor surface temperature rises de-

pending on application conditions, such as the surrounding tem-

perature and the power supply voltage. Use caution when

operating or washing the Sensor.

Do not use the Sensor in any atmosphere or environment that

exceeds the ratings.

Do not install the Sensor in the following locations.

(1) Locations subject to direct sunlight

(2) Locations subject to condensation due to high humidity

(3) Locations subject to corrosive gas

(4) Locations where the Sensor may receive direct vibration or

shock

Connecting and Mounting

(1) The maximum power supply voltage is 30 VDC. Before turning

the power ON, make sure that the power supply voltage does

not exceed the maximum voltage.

(2) Laying Sensor wiring in the same conduit or duct as high-volt-

age wires or power lines may result in malfunction or damage

due to induction. As a general rule, wire the Sensor in a sepa-

rate conduit or use shielded cable.

and less than 100 m long.

(4) Do not pull on the cable with excessive force.

(5) Pounding the Photoelectric Sensor with a hammer or other

tool during mounting will impair water resistance.

(6) Mount the Sensor either using the bracket (sold separately) or

on a flat surface.

(7) Be sure to turn OFF the power supply before inserting or re-

moving the connector.

Cleaning

Never use thinner or other solvents. Otherwise, the Sensor sur-

face may be dissolved.

Power Supply

If a commercial switching regulator is used, ground the FG (frame

ground) terminal.

Power Supply Reset Time

The Sensor will be able to detect objects 100 ms after the power

supply is tuned ON. Start using the Sensor 100 ms or more after

turning ON the power supply. If the load and the Sensor are con-

nected to separate power supplies, be sure to turn ON the Sensor

first.

Turning OFF the Power Supply

Output pulses may be generated even when the power supply is

OFF. Therefore, it is recommended to first turn OFF the power

supply for the load or the load line.

Load Short-circuit Protection

This Sensor is equipped with load short-circuit protection, but be

sure to not short circuit the load. Be sure to not use an output cur-

rent flow that exceeds the rated current. If a load short circuit oc-

curs, the output will turn OFF, so check the wiring before turning

ON the power supply again. The short-circuit protection circuit will

be reset. The load short-circuit protection will operate when the

current flow reaches 1.8 times the rated load current. When using

a capacitive load, use an inrush current of 1.8 times the rated load

current or higher.

Water Resistance

Do not use the Sensor in water, rainfall, or outdoors.

! Warning

! Caution

Precautions for Safe Use

Precautions for Correct Use

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