E39-R5 datasheet(26/27 Pages) OMRON

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Photoelectric Sensors Technical Guide

● Operating Environment

Water Resistance

Do not use in water, in rain, or outside.

Ambient Conditions

Do not use this Sensor in the following locations. Otherwise, it may

malfunction or fail.

(1) Locations exposed to excessive dust and dirt

(2) Locations exposed to direct sunlight

(3) Locations with corrosive gas vapors

(4) Locations where organic solvents may splash onto the Sensor

(5) Locations subject to vibration or shock

(6) Locations where there is a possibility of direct contact with water,

oil, or chemicals

(7) Locations with high humidity and where condensation may result

Environmentally Resistive Sensors

The E32-T11F/T12F/T14F/T81F-S/D12F/D82F and E3HQ can be used

in locations (3) and (6) above.

Optical Fiber Photoelectric Sensors in Explosive Gas

Atmospheres

The Fiber Unit can be installed in the hazardous area, and the

Amplifier Unit can be installed in a non-hazardous area.

For explosion or fire due to electrical equipment to occur, both the

hazardous atmosphere and a source of ignition must be in the same

location. Optical energy does not act as an ignition source, thus there

is no danger of explosion or fire. The lens, case, and fiber covering are

made of plastic, so this setup cannot be used if there is a possibility of

contact with solvents that will corrode or degrade (e.g., cloud) the

plastic.

Electrical sparks or high-temperature parts that have sufficient energy

to cause explosion in a hazardous atmosphere are called ignition

sources.

Influence from External Electrical Fields

Do not bring a transceiver near the Photoelectric Sensor or its wiring,

because this may cause incorrect operation.

● Maintenance and Inspection

Points to Check When the Sensor Does Not Operate

• If the Sensor does not operate, check the following points.

(1) Are the wiring and connections correct?

(2) Are any of the mounting screws loose?

(3) Are the optical axis and sensitivity adjusted correctly?

(4) Do the sensing object and the workpiece speed satisfy the ratings

and specifications?

(5) Are any foreign objects, such as debris or dust, adhering to the

Emitter lens or Receiver lens?

(6) Is strong light, such as sunlight (e.g., reflected from a wall), shining

on the Receiver?

(7) Do not attempt to disassemble or repair the Sensor under any

circumstances.

(8) If you determine that the Sensor clearly has a failure, immediately

turn OFF the power supply.

Lens and Case

The lens and case of the Photoelectric Sensor are primarily made of

plastic. Dirt should be gently wiped off with a dry cloth. Do not use

thinner or other organic solvents.

• The case of the E3ZM, E3ZM-C and E3S-C is metal. The lens,

however, is plastic.

● Accessories

Using a Reflector (E39-R3/R37/RS1/RS2/RS3)

During Application

(1) When using adhesive tape on the rear face, apply it after washing

away oil and dust with detergent. The Reflector cannot be

mounted if there is any oil or dirt remaining.

(2) Do not press on the E39-RS1/RS2/RS3 with metal or a

fingernail.This may weaken performance.

(3) This Sensor cannot be used in locations where oil or chemicals

may splash on the Sensor.

M8 and M12 Connectors

• Be sure to connect or disconnect the connector after turning OFF

the Sensor.

• Hold the connector cover to connect or disconnect the connector.

• Secure the connector cover by hand. Do not use pliers, otherwise

the connector may be damaged.

• If the connector is not connected securely, the connector may be

disconnected by vibration or the proper degree of protection of the

Sensor may not be maintained.

● Others

Values Given in Typical Examples

The data and values given as typical examples are not ratings and

performance and do not indicate specified performance. They are

rather values from samples taken from production lots, and are

provided for reference as guidelines. Typical examples include the

minimum sensing object, engineering data, step (height) detection

data, and selection list for specifications.

Cleaning

• Keep organic solvents away from the Sensor. Organic solvents will

dissolve the surface.

• Use a soft, dry cloth to clean the Sensor.

Non-hazardous area

Amplifier Unit

Fiber Unit

Sensing object

Hazardous area

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