SMARTSCAN 053B101, Installation Manual, Page: 36 / 49

T4 (053B) Series Installation Guide
CD354/220116 Smartscan Ltd 32
Now thrust the test piece anywhere in the light curtain detection zone and ensure
the machinery stops without apparent delay.
For light curtain models with an ODC above 40mm undertake the same tests as
described. During these tests the output switches should only turn OFF as the
test piece totally obscures each beam in the light curtain. Ensure that while the
test piece is obscuring each beam the output switches are OFF.
Maintenance
The Transmitter (TX) and Receiver (Rx) windows should be
cleaned regularly as indicated on the Installation Sheet,
Figure L.
Dirt build-up or scratching on the windows may lead to
intermittent tripping or a totally blocked condition of the light
curtain. Clear adhesive tape may be applied to the windows
of curtains in dirty or abrasive conditions. Renew the clear
adhesive tape periodically.
Dust particles can be attracted to the Perspex window due to static charges. This
can be prevented by the use of an antistatic plastic cleaner and antistatic cloth.
Clean the windows with a clean damp cloth using a mild
detergent. Never use abrasive, corrosive cleaners or
spray detergents.
During the maintenance inspection of the safety device and the danger area
checks include, damage and general wear, connection cables and the electrical
connections, mountings and physical extrusion and Perspex. See also the
Operation Cycle checks within this document.
Warning The machine shall not start whilst the test piece is blocking
the Detection Zone (K) of the light curtain. This is acknowledged by the
RED indicator in the on-state and Green indicator in the Off-state. The
machine shall remain in the stopped condition and/or prevent the machine
from restarting. If it does then machine MUST be isolated until the reason
has been investigated.
Warning There must not be any means of accessing the danger point
without interruption to the infrared field of the safety light curtain.