HANNOVER MESSE 2019, 01 - 05 April
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esf-1 ultrasonic label sensor

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Exhibitor details
Exhibitor details
Logo esf-1 ultrasonic label sensor

Product description

The functional principle
Labels are guided through the fork. An ultrasonic transmitter in the lower tine of the fork beams a fast sequence of pulses through the backing material. The sound pulses cause the backing material to vibration, so that a greatly attenuated sound save is beamed from the opposite side. The receiver in the upper tine of the fork receives this sound wave.

The backing material transmits a different signal level from the label. This signal difference is evaluated by the esf-1. The signal difference between the backing material and the label can be very slight. To ensure a reliable distinction, the esf-1 must be trained to the label.

The esf-1 can reliably detect high-transparency, reflective materials as well as metallised labels and labels of any colour. The measurement cycle time automatically self-adjusts to the sound power required. For thin labels and backing materials, the esf-1 can work at its maximum speed, with a response time of < 300 microseconds.

To be able to detect special labels, for example labels with punches or perforations, there are three different teach-in methods available.

A) Learn both backing material and label dynamically

B) Separate teach-in for backing material and labels

C) Learn web material only

The teach-in procedure can optionally be carried out with the button on the top of the housing or with pin 5 on the unit's connector.

With LinkControl the esf-1 can optionally be parameterised. Measured values can also be shown graphically.

Product website

Hall 9, Stand H34

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