WAC 296-806-20046   Make sure light curtains meet these requirements.  

     IMPORTANT:

     All devices must meet the general requirements for devices found in, Make sure devices meet these requirements, WAC 296-806-20044.

     You must:

     • Make sure light curtains, when used:

     – Respond to the presence of an operator's hand, other body part, or a work piece.

     – Have indicators that are easily seen by the operator showing when the device is functioning or has been bypassed.

Note:

Even if a shiny reflective object or work piece is used with a light curtain or other electro-optical device, it should still respond to the operator's hand or other body part.

     You must:

     • Make sure only authorized persons can make the following adjustments to light curtains:

     – Variations in operating conditions.

     – Fixed or channel blanking.

     – Floating blanking (sometimes referred to as floating channel or floating window features).

     • Safeguard access to the point of operation that is not protected by light curtains.

Reference:

For more information on light curtains and their requirements, see Performance criteria for safeguarding, ANSI B11.19.2003

[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. 04-14-028, § 296-806-20046, filed 6/29/04, effective 1/1/05.]