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INTRODUCTION
Ambient temperature
• Maintain a minimum clearance of 50 mm above and below the Controller to improve air
circulation.
• Do not install the Controller immediately above significant heat sources, such as heaters,
transformers, or large-capacity resistors.
• Do not let the ambient temperature exceed 50°C.
• Provide a forced-air fan cooling or air conditioning if the ambient temperature is near 50°C so
that the ambient temperature never exceeds 50°C.
Ambient Illumination
• Do not let the ambient illumination exceed 3000 lx.
• When using the Controller near lighting equipment that turns on and off continuously, reduce
the influence of the light by, for example, using a light baffle.
Noise Resistance
• Do not install the Controller in a cabinet containing high-
voltage equipment.
• Do not install the Controller within 200 mm of power cables.
Sensor
Install the sensor in a clean environment and keep the optical
filter on the front panel of the sensor free from oil and dust. If affected by oil or dust, clean the
filter as follows:
• Use a blower brush (normally used to clean camera lenses) to blow large dust particles away
from the surface. Do not blow the dust away with your mouth.
• Use a soft cloth (for lenses) with a small amount of alcohol to remove the remaining dust.
Never use strong force when wiping the sensor. The filter may become scratched, which can
cause errors.
When replacing the sensor connected to the Controller:
Turn off the download function when replacing the sensor.
If the sensor is replaced while the download function is on, measurements cannot be taken
correctly with the new sensor because the old sensor information (such as the measurement
range) is still stored.
Operation Manual p.179
10
Setup Manual
Control panel
Louver
Power cable
200 mm min.
200 mm min.
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