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Idiomas disponibles
Idiomas disponibles
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Safety notes
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Correct use
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Commissioning
8011166.126R | SICK
Subject to change without notice
Photoelectric proximity sensor
Operating instructions
Read the operating instructions before commissioning.
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Connection, mounting, and setting may only be performed by trained specialists.
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Not a safety component in accordance with the EU Machinery Directive.
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UL: Only for use in applications in accordance with NFPA 79. These devices shall
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be protected by a 1 A fuse suitable for 30 V DC. Adapters listed by UL with connec‐
tion cables are available. Enclosure type 1.
When commissioning, protect the device from moisture and contamination.
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These operating instructions contain information required during the life cycle of
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the sensor.
The WTB4-3 is an opto-electronic photoelectric proximity sensor (referred to as "sensor"
in the following) for the optical, non-contact detection of objects, animals, and persons.
If the product is used for any other purpose or modified in any way, any warranty claim
against SICK AG shall become void.
Photoelectric proximity sensor with background suppression.
Image: A
Technical data, see page 72.
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Check the application conditions: Adjust the sensing range and distance to the ob‐
ject or background and the remission capability of the object according to the cor‐
responding diagram [H] (x = sensing range, y = transition range between the set
sensing range and suppression of the background as a % of the sensing range (ob‐
ject remission / background remission). Remission: 6% = black , 18% = gray ,
90% = white (referring to standard white as per DIN 5033).
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