F N F502-EN2-04.book Seite 111 Dienstag, 26. Juli 2005 5:48 17 Distance setting photoelectric sensor in metal housing E3S-CL  High water, oil and detergent resis- tance  Minimal black/white error for highest reliability detecting different colored objects (E3S-CL1) Features Eliminates Background Influences with a What Is Distance Setting? Hysteresis of Only 2% max. (E3S-CL1) (Differences from other detecting system) The hysteresis is the industry's minimum 2% max. (E3S-CL1). Distance-setting As a triangulation measuring is used, objects behind the set- When the sensing object moves in direction A, the center position ting distance cannot be detected. The sensor is insensitive to of the reflected light moves in direction B. This is received by the 2-split photodiode and the place where the incident levels are the the influence of background objects of high reflectivity, and Fea- same on the N and F sides is defined as the setting distance. stable detects works on a conveyor from above. The hystere- The object is detected by the incident circuit processing only when tures sis of the E3S-CL2 is 10% max. of the detecting distance (5% N F, and is not detected when N F. Therefore, detection is stable max. for white paper). without being influenced by the work type and background ob- jects. Received element N: Near (Two division photodiode) F: Far B Struc- A setting Setting range distance variable ture Light source LED A Detecting range Diffuse-reflective Since the level of the reflected light is judged for detection , the sensing distance varies with the color, material and/or size of the Fea- work. tures A malfunction may occur if there is any object of high reflectivity in the background. Received element Struc- Detecting area Light source ture LED Detecting range E3S-CL A-111 E3S-CL F502-EN2-04.book Seite 112 Dienstag, 26. Juli 2005 5:48 17 6-turn adjuster with indicator Optical Technology of E3S-CL By turning the distance setting ad-  The 6-turn adjuster with indicator ensures ease juster (worm gear), the rotation of the of distance setting. gear moves the cam to change the  Fine distance setting is possible. Operation unit cover incident angle of the whole incident block (lens and photodiode), setting Setting distance indicator the distance. Setting distance adjuster (worm gear) Stability indicator (green) Operation indicator (orange) Cam Receiver lens Two division photodiode Emitter lens Light source LED  NPN/PNP Output Selectable.  Light-ON/Dark-ON is also switch selectable. Conforms to Applicable EN/IEC Standards  The sensors satisfy the electrical safety (IEC947-5-2), noise resis- tance (IEC947-5-2, IEC801-2/3/ 4) and noise radiation restrictions (EN500 81-2, EN55011) required for photoelectric sensors. Application