The expert and pro versions are identical in design. They can be easily exchanged with each other.
The special plastic used has metal-like properties and is light but very robust.
In this way, the connection line can be led to the sensor from behind or, to save space, from above.
The asymmetrical mounting adapter can be inserted in 2 directions, thereby allow- ing it to be positioned optimally to the right and left of the dispensing edge.
The label material can be taught-in very easily with the aid of the button.
The flat sensor surfaces on the transmitter and receiver mean that it has no pinholes or hard-to-reach niches or hollows where dirt can accumulate.
The very flat design of the lower fork leg allows the material to be positioned close to the dispensing edge.
can reliably detect high-transparency, reflective materials as well as metallised labels and labels of any colour. For thin labels and backing materials, the esf+1 can work at its maximum speed, with a measurement cycle time of ≥ 150 µs.
Labels are guided through the fork. An ultrasonic transmitter in the lower leg of the fork beams a fast sequence of pulses through the backing material. The sound pulses cause the backing material to vibrate such that a greatly attenuated sound save is beamed from the opposite side. The receiver in the upper leg 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 has to learn the label and backing material.
During the Teach-in process, the backing material and its labels are guided through the fork at a constant speed. The esf+1 sensor automatically learns the signal level for the labels and for the gaps between the labels. This is the standard Teach-in for labels.
Web material is generally processed from a roll. The splice to be detected is hidden somewhere in the roll. There is a separate Teach-in method available for this purpose, in which only the sheeting is learned. The esf+1 detects the level difference at the splice and sets its output.
can optionally be carried out with the button on the top of the housing or with pin 5 on the unit's connector.
the esf+1 can optionally be parameterised. Measured values can also be shown graphically.
esf+1 ultrasonic label and splice sensors have a Push-Pull switching output and support IO-Link in version 1.1.5.
The sensor features an integrated recipe management via IO-Link. Up to 20 different labels with backing material can be learned, and the material parameters can be saved directly in the sensor. In addition, material parameters for splice detection can also be saved in the recipe management, ensuring that material transitions are reliably detected and processed. All saved settings can be accessed at any time. There is no need to Teach-in the materials again.
