User guide

5
IL-E
Influence of dirt
Measurement errors may occur due to dust, water, oil, etc.
• Blow away dirt on the transmitter and the receiver with clean air. Wipe with a soft cloth
moistened with alcohol for heavy dirt.
• Blow away the dirt attached to the object with clean air or wipe it off.
• If dirt is floating in the measurement range, take adequate measures, such as installing a
protective cover or air purge.
Anti-noise prevention
When the unit is installed near electric noise source such as a power source or high-voltage
line, operational errors or product failure may occur. Take adequate measures such as using a
noise filter, arranging cables separately or insulating the sensor amplifier and the sensor head.
Power ON Reset
After the power is turned ON, it will take approx. two seconds for the measurement to start.
The judgment results will be output after the sampling period has elapsed.
Power source
• Noise superimposed on the power supply may cause malfunction. Use a direct current
stabilized power source which uses an insulation transformer.
• When using a commercially available switching regulator, make sure to ground the frame
ground terminal.
CE Marking
Keyence corporation has confirmed that this product complies with the essential
requirements of the applicable EC Directives, based on the following specifications.
Be sure to consider the following specifications when using this product in the Member
States of European Union.
 EMC Directive
• Applicable standards EMI : EN61326-1,ClassA
EMS : EN61326-1
• The length of the sensor head cable and all I/O cables must be less than 30m.
Remarks
These specifications do not give any guarantee that the end-product with this product
incorporated complies with the essential requirements of EMC Directive.
The manufacturer of the end-product is solely responsible for the compliance on the
end-product itself according to EMC Directive.
Other Precautions
Precautions on Regulations and Standards