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Ultrasonic fork barriers: How they compare to optical fork sensors

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article image UPF-B Series ultrasonic fork sensors

Practical Control Solutions presents the UPF-B Series ultrasonic fork sensors designed as an alternative to optical fork barriers.

Offering simple and quick mounting, the UPF-B Series finds application in detection of parts in dirty environments, edge detection and detection of transparent parts. 

The UPF-B Series ultrasonic fork sensors offer high switching speed of 500Hz, and are robust, watertight and oil-resistant with IP67 rating.

Fork barriers have several advantages compared to standard barriers. Mounting is simplified since the transmitter and receiver are perfectly aligned. No mechanical misalignment is possible after mounting. Ultrasonic fork sensors are ideal for situations where optical fork sensors may fail because of high pollution or transparent objects.

The UPF-B Series fork sensors are compatible with optical fork sensors in terms of installation as well as operation. Thanks to the new transducer sealing made of Viton, the UPF-B sensors are very robust against many environmental influences. 

Ultrasonic fork barriers feature a transmitter and a receiver, each mounted on one side of the fork housing. The transmitter beam is focused to the receiver. If the receiver detects ultrasound, the output of the receiver becomes active. If the sound beam is interrupted, the receiver output gets disabled. The output signal can be set for NO (switching on dark) or NC (switching on bright) function. The status of the output signal is shown with the LED integrated in the M8 connector. The LED lights up when the output is active.

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