Flameproof Type Safety Light Curtain Type 4 BSF4-AH80

• Use flameproof electric appliances that are compatible with hazardous locations (locations where an explosive atmosphere of gas or vapor may exist).
• Make sure that the power supply is off while wiring. Otherwise, electric shock may result.
• Never modify or repair the product yourself. Failure to follow this instruction may result in an explosion or ignition.
• Protect the cables, or external conductors, against possible external damage by passing them through a sufficiently strong metallic tube or by other means.
• Ground the grounding terminal without fail. Failure to follow this instruction may result in an explosion or ignition.
• Do not open the lid of the flameproof enclosure, and do not remove the window frame fixtures of the enclosure. Failure to follow this instruction may result in an explosion or ignition.
• The product can be used in the areas where flameproof appliances of “Groups IIA and IIB” and temperature classification “T1 to T6” can be used, and where explosive gases may exist.
  Japan: Zone 1 and Zone 2
  Europe: Zone 1 and Zone 2 (Category 2G: ATEX)
  USA: Class I , Zone 1 and Class I , Zone 2 (US NEC 505)
  Canada: Zone 1 and Zone 2
  China: Zone 1 and Zone 2

• Install the product in a location where it is less likely to suffer mechanical damage.

• When mounting the safety light curtain, secure it in place using four M10 bolts.
• The cable lead-in port is threaded for wiring protective tube or conduit (NPT 1/2). Using a steel wire tube etc., if necessary, screw a tube into the port at least five complete threads.
• After beam alignment, tighten the hexagon-socket-head bolts for adjusting mounting angle for fixing. The recommended tightening torque is 1.5 to 1.7 N·m. (The hexagon-socket-head bolts for adjusting mounting angle are on top and bottom surfaces of the emitter and receiver.)

• Ground the external grounding terminal on the flameproof enclosure to keep the grounding resistance at or below 100 Ω.
• For grounding, use an electric wire with equivalent or higher insulation performance to a 600 V polyvinyl-insulated electric wire, and of a thickness ensuring safe carrying of the expected maximum ground current.

• This device has been developed / produced for industrial use only.
• Use the device according to the specifications of this product. Failure to follow this instruction may result in electric shock, injuries, or damage to the product.
• Unpack the product with the right side facing up. If you do not follow this instruction, you may get injured.
• Do not touch any terminals when measuring the insulation resistance.
  Failure to follow this instruction may result in electric shock.
• If there is something abnormal with the product, immediately turn OFF the product. Otherwise, electric shock, injuries, or a fire may result.
• Before measuring the insulation resistance, confirm that there is no explosive atmosphere of gases or vapor around. Failure to follow this instruction may result in an explosion or ignition.

Classification of “Class” (North America only)

• Hazardous atmosphere is classified as follows.

• Electric appliances are classified into the following groups in terms of explosive atmospheres:

• Excerpted from the “Guide to Explosion-proof Electric Machine and Appliance Type Verification (Related Technical Standards Consistent with Global Standards, Japan)”. In general, the temperature classes and gas or vapor categories of the representative explosive gases frequently used by plants are as shown in the table below: