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Introduction
ambient temperature is 40°C or higher.
In the case of installing two or more sensor heads in parallel, mount each sensor
head to an aluminum or steel plate with a minimum surface area of 200 cm
make sure that the ambient temperature does not exceed 40°C.
Ambient humidity
• Use the system within a relative humidity (RH) range of 35% to 85%.
Do not use the system in places that may cause dew condensation as a result of
radical temperature changes.
Ambient illuminance of light receiving surface
Make sure that the illumination level of the light receiving surface does not exceed
3,000 lx under incandescent light.
Power Supply Voltage
Be sure to supply a rated voltage of 21.6 to 26.4 VDC.
Environment
• The internal circuit may be damaged if an external surge voltage (single-polarity,
full-wave voltage) in excess of 500 V ± 1.2 x 50 μs is imposed. Insert a surge
absorber between power input terminals if the external surge voltage is likely to
exceed 500 V.
• Always keep the emitter and receiver of the sensor head clean. Make sure that the
emitter and receiver are free of substances that refract light, such as water, oil, or
fingerprints, or surface water, or matters that block light, such as dust and dirt.
Clean the emitter and receiver with a soft lint-free cloth or lens cleaning paper.
• Check that the receiver will not receive direct ambient light the same as the laser
light in wavelength, such as sunlight. Mount an appropriate object, such as a light
shield plate, to the sensor head if high accuracy is especially required.
• Do not use the system in places with flammable or corrosive gas or excessive
dust, places where water is sprayed, places exposed to direct sunlight, or places
with strong vibration or shock.
Protective Structure
• The sensor head is of penetration-resistant type, but the connector is not of dust-,
water-, or corrosion-proof construction. Therefore, Do not use the product
underwater or in the rain. Pay attention to the operating environment.
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