Photoelectric sensors with background suppression

Fotocellen met een achtergrondonderdrukking werken als fotoceltasters, maar bezitten een extra functie om enkel objecten te detecteren binnen een gedefinieerde zone, van fotocel tot achtergrond. Om een fotocel met achtergrondonderdrukking goed te laten functioneren, dient deze altijd te worden afgesteld vlak voor de achtergrond. Je zou de fotocel dus ook ‘fotocel met achtergrondbenutting’ kunnen noemen. Middels een potentiometer wordt de achtergrond gedefinieerd, zo schakelt de fotocel enkel op objecten tussen de fotocel en de achtergrond. Photoelectric sensors with background suppression work as diffuse proximity photoelectric sensors, but have an additional function to detect only objects within a defined zone, from sensor to background. To make a sensor with background suppression function properly, it should always be taught just in front of the background. So you could also call the sensor a "photoelectric sensor with background utilization". The background is taught by means of a potentiometer, so the sensor switches only on objects between the sensor and the background.

Telco Sensors SP2000 series photoelectric sensors with background suppression are characterized by the commonly used housing dimensions of 50 x 50 x 17 mm. The transmitter and receiver are mechanically separated from each other in the housing, thus eleminating internal interference. The sensors are available in 10-30 Vdc version with PNP/NPN output or in multivoltage version where the sensor is powered by either 12-240 Vdc or 20-240 Vac and has a relay output available. The sensors with a relay always have a fixed cable connection. With the PNP/NPN outputs, there is a choice of fixed cable or a rotatable 4-pin M12 connector. In addition, these sensors can be delivered with or without time delay function.

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SPBS 2600 J

SPBS 2600 J

SPBS 2600 J is a cubical sensor with background suppression and 50 cm range, 4-pin M12-connector and PNP/NPN output. Range adjustable via a potentiometer.
SPBS 2602T J

SPBS 2602T J

SPBS 2602T J is a cubical sensor with background suppression and 200 cm range, 4-pin M12-connector and PNP/NPN output. On/Off delay and range adjustable via a potentiometer.
SPBS 2900T 5

SPBS 2900T 5

SPBS 2900T 5 is a cubical sensor with background suppression and 50 cm range, 5 meter fixed cable and relay output. On/Off delay and range adjustable via a potentiometer.
SPBS 2902T 5

SPBS 2902T 5

SPBS 2902T 5 is a cubical sensor with background suppression and 200 cm range, 5 meter fixed cable and relay output. On/Off delay and range adjustable via a potentiometer.
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