1-3 Attention MarksThis instruction manual employs the following attentions marks ,depending on the degree of the danger to call operator’s attention to each particular action.Read the following explanation of these marks thoroughly and observe these notices withoutfail.If you ignore the advice with this mark, death or serious injury could result.If you ignore the advice with this mark, injury or material damage couldresult. It gives useful information for better use of this device.Machine designer, installer, employer and operator The machine designer, installer, employer and operator are solely responsible toensure that all applicable legal requirements relating to the installation and the use inany application are satisfied and all instructions for installation and maintenancecontained in the instruction manual are followed. Whether this device functions as intended to and systems including this device complywith safety regulations depends on the appropriateness of the application, installation,maintenance and operation. The machine designer, installer, employer and operatorare solely responsible for these items.Engineer The engineer would be a person who is appropriately educated, has widespreadknowledge and experience, and can solve various problems which may arise duringwork, such as a machine designer, or a person in charge of installation or operation etc.Operator The operator should read this instruction manual thoroughly, understand its contents,and perform operations following the procedures described in this manual for thecorrect operation of this device. In case this device does not perform properly, the operator should report this to theperson in charge and stop the machine operation immediately. The machine must notbe operated until correct performance of this device has been confirmed.Environment Do not use a mobile phone or a radio phone near this device. If there exists a reflective surface in the place where this device is to be installed, makesure to install this device so that reflected light from the reflective surface does notenter into the receiver, or take countermeasures such as painting, masking,roughening, or changing the material of the reflective surface, etc. Failure to do so maycause the sensor not to detect, resulting in death or serious injury. Do not install this device in the following environments.Areas exposed to intense interference (extraneous) light such as high-frequencyfluorescent lamp (inverter type), rapid starter fluorescent lamp, stroboscopic lightsor direct sunlight.Areas with high humidity where condensation is likely to occurAreas exposed to corrosive or explosive gasesAreas exposed to vibration or shock of levels higher than that specifiedAreas exposed to contact with waterAreas exposed to too much steam or dust© Panasonic Industrial Devices SUNX Co., Ltd. 2013 MJE-SF4A No.0038-55V- 6 -