WLL 170 Photoelectric switches with fibre-optic cable, red light, manual sensitivity adjustment -- DC. Dimensional drawing R1.6 2-R

Transcription

1 WLL 0 Photoelectric switches with fibre-optic cable, red light, manual sensitivity adjustment -- DC mm Through-beam systems Dimensional drawing R. -R. Scanning distance mm. Proximity systems Red sender LED for standard applications anual sensitivity adjustment Simple installation and alignment. ø. approx. 00 approx R.. 0 Adjustments possible WLL 0-P WLL 0-N WLL 0-P 0 WLL 0-N 0 WLL 0-P 0 WLL 0-N 0 in ax SENS DLY L. D. 0 0 Sender LED, installation of LL fibre-optic cable (sender fibre) Receiver, installation of LL fibre-optic cable (receiver fibre) Protective hood: can be raised at both ends, removable ounting bracket, included (see Accessories) : lights up when switching output is active LED signal strength indicator, green: lights up when light received >. (switching threshold = ) Sensitivity scale Sensitivity control ( revolutions) Selector switch for -delay: DLY ()/, 0 ms fixed Selector switch: L. (light-switching)/ D. C V Connection types WLL 0-P WLL 0-P 0 WLL 0-N WLL 0-N 0 WLL 0-P 0 WLL 0-N 0 Accessories page Cable receptacles ounting brackets* 0 Fibre-optic cables 0 * included with delivery l mm L+ -pin, L+ -pin, L+ NC 0

2 WLL 0 Technical data WLL 0- P P 0 P 0 N N 0 N 0 Suitable fibre-optic cable Recommended operating range Recommended operating distance LL plastic fibre-optic cables Depends on fibre-optic cable used mm (through-beam system) (with tip adapters mm) mm ) (proximity system) Sensitivity adjustment Potentiometer, turns ) Light source ), light type LED, visible red light Light spot diameter of LL Depends on scanning range Disp. angle of LL fibre-optic cable Approx. ) Supply voltage V ) S VDC Ripple ) 0 % Current consumption ) 0 ma Switching outputs PNP: open collector: NPN: open collector: Output current I A max. 00 ma Light receiver, switching mode Light-/dark-switching ) Response time ) 0. ms ax. switching frequency 0) 0/s Time delay T (-delay) 0 ms fixed, selectable via sliding switch Connection types cable ) PVC, m; x 0. mm, l.0 mm, -pin, -pin Circuit protection ) A, B, C, D Enclosure rating IP 0 Ambient temperature T A Operation C...+ C Storage 0 C...+0 C Weight with cable m Approx. 0 g with, -pin/-pin Approx. 0 g Housing material ABS ) Object with 0 % remission (based on standard white to DIN 0) ) Sensitivity scale 0 ) Average service life 00,000 h at T A = + C ) Deviations, see data for LL ) Limit values ) ay not exceed or fall short of V S tolerances ) Without load ) Via sliding switch ) With light/dark ratio :, without time delay 0) Signal transit time with resistive load ) Do not bend below 0 C ) A = V S connections reverse-polarity B = Inputs/outputs reverse-polarity C = Interference pulse suppression D = Outputs overcurrent and short-circuit Function diagram for WLL 0, manual sensitivity adjustment WLL 0 : lights up when switching output is active. Depends on position of light/dark selector switch. Indicator LED, green: lights up when light received >. (relative to switching threshold, switching threshold = ) t 0 ms Light received >. Switching threshold () Light received < 0. Switching output (light-switching) Switching output Indicator LED, green WLL 0-P 0 WLL 0-P 0 0 WLL 0-P 0 0 WLL 0-N 0 WLL 0-N 0 0 WLL 0-N 0 0 0

3 WLL 0 Photoelectric switches with fibre-optic cable, high speed -- DC mm Through-beam systems Dimensional drawing R. -R. Proximity systems Scanning distance 0... mm High speed 0,000/s, for extremely fast processes Red sender LED anual sensitivity adjustment Time delay of 0 ms for signal prolongation. ø. approx R.. 0 approx Adjustments possible WLL 0-P WLL 0-N WLL 0-P 0 WLL 0-N 0 WLL 0-P 0 WLL 0-N 0 in ax SENS DLY L. D. 0 0 Sender LED, installation of LL fibre-optic cable (sender fibre) Receiver, installation of LL fibre-optic cable (receiver fibre) Protective hood: can be raised at both ends, removable ounting bracket, included (see Accessories) : lights up when switching output is active LED signal strength indicator, green: lights up when light received < 0. or >. (switching threshold = ) Sensitivity scale Sensitivity control ( revolutions) Selector switch for -delay: DLY ()/, 0 ms fixed Selector switch: L. (light-switching)/ D. C V Connection types WLL 0-P WLL 0-P 0 WLL 0-P 0 WLL 0-N WLL 0-N 0 WLL 0-N 0 Accessories page Cable receptacles ounting brackets* 0 Fibre-optic cables 0 * included with delivery l mm L+ -pin, L+ -pin, L+ NC 0

4 WLL 0 Technical data WLL 0- P P 0 P 0 N N 0 N 0 Suitable fibre-optic cable Recommended operating range Recommended operating distance LL plastic fibre-optic cables Depends on fibre-optic cable used mm (through-beam system) (with tip adapters mm) 0... mm ) (proximity system) Sensitivity adjustment Potentiometer, turns ) Light source ), light type LED, visible red light Light spot diameter of LL Depends on scanning range Disp. angle of LL fibre-optic cable Approx. ) Supply voltage V ) S VDC Ripple ) 0 % Current consumption ) 0 ma Switching outputs PNP: open collector: NPN: open collector: Output current I A max. 00 ma Light receiver, switching mode Light/dark-switching ) Response time ) 0 µs ax. switching frequency 0) 0,000/s Time delay T (-delay) 0 ms fixed, selectable via sliding switch Connection types cable ) PVC, m; x 0. mm, l.0 mm, -pin, -pin Circuit protection ) A, B, C, D Enclosure rating IP 0 Ambient temperature T A Operation C...+ C Storage 0 C...+0 C Weight with cable m Approx. 0 g with, -pin/-pin Approx. 0 g Housing material ABS ) Object with 0 % remission (based on standard white to DIN 0) ) Sensitivity scale 0 ) Average service life 00,000 h at T A = + C ) Deviations, see data for LL ) Limit values ) ay not exceed or fall short of V S tolerances ) Without load ) Via sliding switch ) With light/dark ratio :, without time delay 0) Signal transit time with resistive load ) Do not bend below 0 C ) A = V S connections reverse-polarity B = Inputs/outputs reverse-polarity C = Interference pulse suppression D = Outputs overcurrent and short-circuit Function diagram for WLL 0, manual sensitivity adjustment WLL 0 : lights up when switching output is active. Depends on position of light/dark selector switch. Indicator LED, green: lights up when light received >. (relative to switching threshold, switching threshold = ) Light received >. Switching threshold () Light received < 0. Switching output (light-switching) WLL 0-P WLL 0-P 0 WLL 0-P 0 WLL 0-N WLL 0-N 0 WLL 0-N t 0 ms Switching output Indicator LED, green

5 WLL 0 A Photoelectric switches with fibre-optic cable, analogue -- DC mm Through-beam systems Dimensional drawing R. -R. Proximity systems Scanning distance mm Analogue output voltage... V Large range of suitable LL fibre-optic cables Ideal for more complex requirements, e.g. positioning tasks, turbidity/transmission measurement, contrast resolution. ø. approx R.. 0 approx Adjustments possible WLL 0A-V WLL 0A-V0 WLL 0A-V0 in ax SENS ms 0 ms Sender LED, installation of LL fibre-optic cable (sender fibre) Receiver, installation of LL fibre-optic cable (receiver fibre) Protective hood: can be raised at both ends, removable ounting bracket, included (see Accessories) : analogue output with saturation ( V) LED signal strength indicator, green: lights up when light received Sensitivity scale, min./max. = 0 Sensitivity control (min./max. = revolutions) Selector switch for analogue output response time C V Connection types WLL 0A-V WLL 0A-V0 WLL 0A-V0 Accessories page Cable receptacles ounting brackets* 0 Fibre-optic cables 0 * included with delivery l mm L+... V -pin, L+... V -pin, wht L+... V NC

6 WLL 0A Technical data WLL 0A- V V 0 V 0 Suitable fibre-optic cable LL plastic fibre-optic cables ) Depends on fibre-optic cable used Recommended operating ranges ) max mm (through-beam syst.) (with tip adapters mm) Recommended operating distance ) max mm ) (proximity system) Light source ), light type LED, visible red light Light spot diameter of LL Depends on scanning range Disp. angle of LL fibre-optic cable Approx. ) Supply voltage V ) S VDC Ripple ) 0 % Current consumption ) 0 ma Analogue output Voltage output... V V = no light received V = saturation Load current (max.) 0 ma Output resistance (Ri) Ω Load resistance kω (recommended) Response time, selectable ) ms/0 ms Sensitivity, adjustable Potentiometer, turns ) Connection types cable 0) PVC, m; x 0. mm, l.0 mm, -pin, -pin Cable extension max. 00 m; signal loss to be expected Circuit protection ) A, C, D Enclosure rating IP 0 Ambient temperature T A Operation C...+ C Storage 0 C...+0 C Weight with cable m Approx. 0 g with, -pin/-pin Approx. 0 g Housing material ABS ) See Accessories; selection table for LL fibre-optic cables ) Object with 0 % remission (based on standard white to DIN 0) ) Average service life 00,000 h at T A = + C ) Deviations, see data for LL ) Limit values ) ay not exceed or fall short of V S tolerances ) Without load ) Delay time: change in received light/ change in analogue output, (0 % of upper range value) ) Scale 0 0) Do not bend below 0 C ) A = V S connections reverse-polarity C = Interference pulse suppression D = Outputs overcurrent and shortcircuit WLL 0A, analogue, typical curves Analogue output (V) V SENS. max. WLL 0A LL-TB0 Analogue output (V) V SENS. max. WLL 0A LL-DB0 WLL 0A-V WLL 0A-V0 WLL 0A-V SENS. / SENS. / 0 (mm) (mm) 0 (mm) Scanning distance (mm)

7 WLL 0T Photoelectric switches with fibre-optic cable, teach-in, red light -- DC mm Through-beam systems Scanning distance mm Dimensional drawing R. -R.. Proximity systems Red sender LED for standard applications and mark recognition Easy alignment and commissioning by teach-in anual fine adjustment, optional Anti-interference, optional. ø. approx R approx C V Adjustments possible WLL 0T-P WLL 0T-P 0 WLL 0T-P 0 WLL 0T-N WLL 0T-N 0 WLL 0T-N 0 DLY L. D. 0 Connection types WLL 0T-F WLL 0T-F 0 WLL 0T-F 0 WLL 0T-E WLL 0T-E 0 WLL 0T-E 0 DLY L. D. + SENS. ADJ. WLL 0T-P WLL 0T-P 0 WLL 0T-P 0 WLL 0T-N WLL 0T-N 0 WLL 0T-N 0 WLL 0T-F WLL 0T-F 0 WLL 0T-F 0 WLL 0T-E WLL 0T-E 0 WLL 0T-E 0 LED sender, installation of LL fibre-optic cable (sender fibre) Receiver, installation of LL fibre-optic cable (receiver fibre) Protective hood, can be raised at both ends, removable ounting bracket, included (see Accessories) Orange LED indicator, lights up when switching output is active Green LED reception indicator, lights up when light received is < 0. or >. (switching threshold = ) delay selector switch: DLY (on)/, 0 ms fixed Selector switch: L. (light-switching)/ D. Operating mode selector switch: (teach-in 0 mode)/ (sensor mode) Teach-in push button Sensitivity potentiometer ± 0, SENS.ADJ : manual fine adjustment of taught-in switching threshold (see selection table for variants) Accessories page Cable receptacles ounting brackets* 0 Fibre-optic cables 0 * included with delivery l mm L+ -pin, L+ -pin, L+ NC

8 WLL 0T Technical data WLL 0T- P P 0 ) N N 0 ) F F 0 ) E E 0 ) P 0 ) N 0 ) F 0 ) E 0 ) Suitable fibre-optic cable LL plastic fibre-optic cables Dependent on fibre-optic cable used Recommended operating ranges mm (through-beam system) (with auxiliary lens mm) Recommended operating distance mm ) (proximity system) Sensitivity setting Automatically, by teach-in button ode switch at pos. ) Additional fine alignment, manual Optional ) ode selector switch position Teach-in button active position Teach-in button inactive ) Basic device WLL 0T Anti-interference ) See selection table WLL 0T Light source ), light type LED, visible red light Light spot diameter LL Dependent on scanning range Dispersion angle LL fibre-optic cable Approx. ) Supply voltage V 0) S V DC Ripple ) 0 % Current consumption ) 0 ma Switching outputs PNP: open collector: NPN: open collector: Output current I A max. 00 ma Light receiver, switching type Dark-/light-switching ) Response time ) 0. ms Switching frequency max. ) 000/s Time delay t ( delay) 0 ms fix, selectable by sliding switch Connection types cable ) PVC, m; x 0. mm, l.0 mm, -pin, -pin Circuit protection ) A, B, C, D Enclosure rating IP 0 Ambient temperature T A Operation C...+ C Storage 0 C...+0 C Weight with cable m Approx. 0 g with, -pin/-pin Approx. 0 g Housing material ABS ) Plug, -pin ) Plug, -pin ) Object with 0 % remission (based on standard white to DIN 0) ) Teach-in active ) Change of switching threshold at approx. ± %, with potentiometer ± 0 ) Equipment in sensor mode ) Optional, no opposing interference of basic WLL 0T and WLL 0T Antiinterference ) Average service life 00,000 h at T A = + C ) See LL data for deviations 0) Limit values ) ay not exceed or fall short of V S tolerances ) Without load ) By sliding switch ) With light/dark ratio : without time delay ) With resistive load ) Do not bend below 0 C ) A = V s connections reverse-polarity B = Inputs/outputs reverse-polarity C = Interference suppression D = Outputs overcurrent and shortcircuit Function diagram WLL 0T standard WLL 0T in sensor mode Operating mode selector switch in mode (after setting the switching threshold by means of teach-in). Orange LED display: lights up if switching output is active. Dependent on setting of light/ dark selector switch. Green LED display: lights up if light received is < 0. or >. (based on the switching threshold, switching threshold = ). LED display in teach-in mode: see Teach-in page t 0 ms Light received >. Switching threshold () Light received < 0. Switching output (light-switching) Switching output WLL 0T-P WLL 0T-P 0 WLL 0T-P 0 WLL 0T-N WLL 0T-N 0 WLL 0T-N 0 WLL 0T-F WLL 0T-F 0 WLL 0T-F 0 WLL 0T-E WLL 0T-E 0 WLL 0T-E Indicator LED, green

9 WLL 0T Photoelectric switches with fibre-optic cable, mark sensors, green light -- DC mm Through-beam systems Dimensional drawing R. -R. Proximity systems Scanning distance 0... mm Green sender LED Ideal for recognition of red marks, contrasts or parts Teach-in anual fine adjustment, optional Anti-interference, optional C V. ø. approx Adjustments possible WLL 0T-P WLL 0T-P 0 WLL 0T-P 0 WLL 0T-N WLL 0T-N 0 WLL 0T-N 0 DLY L. D. 0 Connection types 0 approx R. 0. WLL 0T-F WLL 0T-F 0 WLL 0T-F 0 WLL 0T-E WLL 0T-E 0 WLL 0T-E 0 DLY L. D. + SENS. ADJ. 0 WLL 0T-P WLL 0T-P 0 WLL 0T-P 0 WLL 0T-N WLL 0T-N 0 WLL 0T-N 0 WLL 0T-F WLL 0T-F 0 WLL 0T-F 0 WLL 0T-E WLL 0T-E 0 WLL 0T-E 0. LED sender, installation of LL fibre-optic cable (sender fibre) Receiver, installation of LL fibre-optic cable (receiver fibre) Protective hood, can be raised at both ends, removable ounting bracket, included in delivery (see Accessories) Orange LED indicator, lights up when switching output is active Green LED reception indicator, lights up when light received is < 0. or >. (switching threshold = ) delay selector switch: DLY (on)/, 0 ms fixed Selector switch: L. (light-switching)/ D. Operating mode selector switch: (teach-in mode)/ (sensor mode) Teach-in push button Sensitivity potentiometer ± 0, SENS.ADJ : manual fine adjustment of taught-in switching threshold (see selection table for variants) Accessories page Cable receptacles ounting brackets* 0 Fibre-optic cables 0 * included with delivery l mm L+ -pin, L+ -pin, L+ NC

10 WLL 0T Technical data WLL 0T- P P 0 ) N N 0 ) F F 0 ) E E 0 ) P 0 ) N 0 ) F 0 ) E 0 ) Suitable fibre-optic cable LL plastic fibre-optic cables Dependent on fibre-optic cable used Recommended operating ranges mm (through-beam system) (with auxiliary lens mm) Recommended operating distance 0... mm ) (proximity system) Sensitivity setting Automatically, by teach-in button ode switch at pos. ) Additional fine alignment, manual Optional ) Black & white resolution ) grey levels ode selector switch position Teach-in button active position Teach-in button inactive ) Basic device WLL 0T Anti-interference ) See selection table WLL 0T Light source ), light type LED, visible green light Light spot diameter LL Dependent on scanning range Dispersion angle LL fibre-optic cable Approx. 0) Supply voltage V ) S V DC Ripple ) 0 % Current consumption ) 0 ma Switching outputs PNP: open collector: NPN: open collector: Output current I A max. 00 ma Light receiver, switching type Dark/light switching ) Response time ) 0. ms Switching frequency max. ) 000/s Time delay t ( delay) 0 ms fix, selectable by sliding switch Connection types cable ) PVC, m; x 0. mm, l.0 mm, -pin, -pin Circuit protection ) A, B, C, D Enclosure rating IP 0 Ambient temperature T A Operation C...+ C Storage 0 C...+0 C Weight with cable m Approx. 0 g with, -pin Approx. 0 g Housing material ABS ) Plug, -pin ) Plug, -pin ) Object with 0 % remission (based on standard white to DIN 0) ) Teach-in active ) Change of switching threshold at approx. ± %, with potentiometer ± 0 ) With LL -DT0 proximity fibre-optic cable, scanning distance mm ) Equipment in sensor mode ) Optional, no opposing interference of Basic WLL 0T and WLL 0T Anti-Interference ) Average service life 00,000 h at T A = + C 0) See LL data for deviations ) Limit values ) ay not exceed or fall short of V S tolerances ) Without load ) By sliding switch ) With light/dark ratio : without time delay ) With resistive load ) Do not bend below 0 C ) A = V s connections reverse-polarity B = Inputs/outputs reverse-polarity C = Interference suppression D = Outputs overcurrent and shortcircuit Function diagram WLL 0T standard WLL 0T in sensor mode Operating mode selector switch in mode (after setting the switching threshold by means of teach-in). Orange LED display: lights up if switching output is active. Dependent on setting of light/ dark selector switch. Green LED display: lights up if light received is < 0. or >. (based on the switching threshold, switching threshold = ). LED display in teach-in mode: see Teach-in page t 0 ms Light received >. Switching threshold () Light received < 0. Switching output (light-switching) Switching output WLL 0T-P WLL 0T-P 0 WLL 0T-P 0 WLL 0T-N WLL 0T-N 0 WLL 0T-N 0 WLL 0T-F WLL 0T-F 0 WLL 0T-F 0 WLL 0T-E WLL 0T-E 0 WLL 0T-E Indicator LED, green

11 WLL 0T Photoelectric switches with fibre-optic cable, teach-in Functions Sensitivity potentiometer SENS.ADJ., ± 0, (optional, see WLL 0T selection table). For fine retro-adjustment of the taught-in switching threshold ± %. Ideal for accurate adaptation for positioning tasks, mark recognition, transparent or very small objects. Switching selector switch L.: light-switching. D.: dark-switching. Either in NPN or PNP. Connection type Either, -pin/-pin equipment or m connection cable. Teach-in button Sensitivity setting by pressing a button. No special photoelectric switch knowledge necessary. Only active when ODE selector switch is in the position (manipulation protection). Teach-in mode selector switch Separate from other operating mode selector switches, therefore simple to operate, no double functions. : WLL 0T in manual teach-in mode. Optimum switching point setting by simply pressing a botton (once or twice). : The taught-in switching threshold and switching hysteresis are saved in the EEPRO. Accidental change of the taught-in parameter is not possible. After seconds the WLL 0T operates in the sensor mode. The saved teach-in values are retained for an unlimited period of time even if the voltage is interrupted for a longer time. delay t off For switching output. Also switchable, 0 ms fixed. Enables the control unit to detect very short events. Protective hood Both sides can be opened up, easy to remove. Easy locking. Also used to check correct fibreoptic cable locking (protective hood cannot be shut otherwise). ounting system WLL 0T ounting by simply clipping onto profile mounting rail. (ounting bracket included in delivery). LED indicators orange, green Teach-in mode: Signalling teach-in sequence Constantly flashing: Teach-in error Constantly lit: Teach-in OK. Sensor mode: Orange LED: switching output active Green LED: receiver signal >. or < 0.; (switching threshold = ). Sender LED: Either red or green LED (see selection table) Red LED: Ideal for all standard applications (high transmission power, large ranges), also for mark detection. Warning: not possible to detect red marks with red light. Green LED: Ideal for recognition of red marks. µ-prozessor controlled, with EEPRO: Permanent retention of taught-in switching threshold and hysteresis even if voltage is interrupted for a longer period of time. Snap-in connector for fibre-optic cable Fibre-optic cable mounting Release fibre-optic cable: snap closure in horizontal position. Insert the fibre-optic cable. Lock the fibre-optic cable: closure in vertical position. Removing fibre-optic cable Release the fibre-optic cable: put the snap closure in a horizontal position. Pull out the fibre-optic cable. Fibre-optic cable receptacle fibre-optic cable (sender). fibre-optic cable (receiver). Suitable fibre-optic cable: LL series plastic fibre-optic cable (see description of the many LL variants).

12 WLL 0T, Teach-in handling. Accurate sensitivity setting (by pressing button twice); WLL 0T Teach-in steps Positioning the object in the light path Proximity Through-beam Proximity Through-beam system system system system START Teach-in Parts in light path Remove parts from light path Reset: STOP Sensor mode anual teach-in Press teach-in button > s Press teach-in button > s ode switch in position Press teach-in button > sec Orange LED indicator lights Press teach-in button > sec Green LED indicator lights ode switch in position This operating mode is suitable for all applications: large ranges, precise switching points, low hysteresis, transparent objects and contrast marks. The WLL 0T automatically optimizes the switching threshold and hysteresis by means of a µ-processor and saves these values permanently in the EEPRO. No special experience with opto-electronic components is necessary. The teach-in button is pressed twice. Applications: Through-beam system: All standard applications, even thin and transparent objects are detected. Proximity system: All standard applications, strong background interference, small or dark target objects, simple marks with contrast differences.. Accurate positioning of parts or switching positions (by pressing button once); WLL 0T Teach-in steps Positioning the object in the light path Proximity system Through-beam system START Teach-in Parts accurately positioned in light path Reset: STOP Sensor mode anual teach-in Press teach-in button > s ode switch in position Press teach-in button > sec, orange LED indicator lights ode switch in position This operating mode is particulary suitable for accurate positioning tasks. After positioning the object in the desired switching position, the WLL 0T automatically optimizes the switching threshold and hysteresis by means of a µ-processor and saves the values permanently in the EEPRO: No special experience with opto-electronic components is necessary. The teach-in button is pressed once. Applications: Through-beam system: Accurate positioning of parts. Proximity system: Accurate positioning of parts, positioning of contrast marks. WLL 0T with additional sensitivity potentiometer (see Selection table). The switching threshold taught-in by means of the teach-in button can also be manually changed within a narrow range (adapted). This may be necessary if the exact switching point required is unknown at the time of commissioning. Warning: This SENS.ADJ potentiometer must be set to the 0 position during teach-in ( mode).

13 WLL 0T Photoelectric switches with fibre-optic cable Selection table WLL 0T Red sender LED WLL 0T Applications: Our recommendation for almost all applications with fibre-optic cables. Also as a contrast sensor for colour marks, marks on transparent sheets, for detection of thin parts and for accurate positioning. Warning: Not suitable for red marks. WLL 0T-P 0 WLL 0T-P 0 0 WLL 0T-P 0 0 WLL 0T-N 0 WLL 0T-N 0 0 WLL 0T-N 0 0 Anti-interference * (other system features are identical) Green sender LED, mark sensor WLL 0T -- mark sensor Applications: All variants with green sender LEDs are ideal for detection of red contrasts (contrast marks). Reduced range/scanning distance. WLL 0T-P 0 WLL 0T-P 0 0 WLL 0T-P WLL 0T-N 0 WLL 0T-N 0 0 WLL 0T-N 0 0 Anti-interference * (other system features are identical) WLL 0T-P WLL 0T-P 0 WLL 0T-P 0 WLL 0T-N WLL 0T-N 0 WLL 0T-N WLL 0T-P WLL 0T-P 0 WLL 0T-P 0 WLL 0T-N WLL 0T-N 0 WLL 0T-N WLL 0T with additional potentiometer for manual fine adjustment Applications: anual adjustment. An additional potentiometer (± 0 ) allows the taught-in switching points to be changed at a later stage. Thin parts, pressure marks and positioning cannot always be preset accurately using a manual procedure. You can vary the switching threshold at a later stage by approx. ± %. WLL 0T-F 00 0 WLL 0T-F 0 0 WLL 0T-F 0 00 WLL 0T-E 00 WLL 0T-E 0 0 WLL 0T-E 0 00 Anti-interference * (other system features are identical) WLL 0T-F 00 WLL 0T-F 0 0 WLL 0T-F WLL 0T-E 00 WLL 0T-E 0 0 WLL 0T-E 0 00 WLL 0T -- mark sensor with additional potentiometer for manual fine adjustment Applications: anual adjustment. An additional potentiometer (± 0 ) allows the taught-in switching points to be changed at a later stage. Thin parts, pressure marks and positioning cannot always be accurately preset using a manual procedure. You can vary the switching threshold at a later stage by approx. ± %. WLL 0T-F 00 WLL 0T-F 0 0 WLL 0T-F 0 00 WLL 0T-E 00 WLL 0T-E WLL 0T-E 0 00 Anti-interference * (other system features are identical) WLL 0T-F 00 0 WLL 0T-F 0 0 WLL 0T-F 0 00 WLL 0T-E 00 WLL 0T-N 0 0 WLL 0T-E 0 00 * Anti-interference Are built-in components or several fibre-optic tips installed close to one another? Do the photoelectric switches interfere with one another? The solution: WLL 0T Anti-interference! Two WLL 0Ts, one basic version and one anti-interference version operate without mutual interference. All versions listed above are also available as anti-interference versions. 0