Module suits manual, semi-automatic filling

A flexible filling module is specifically designed for controlling a diverse range of manual and semi-automatic filling applications where two speed component filling is typically required.

Leading weighing and process control specialists Sensor Techniques are introducing their flexible DAS-72 filling module.

This versatile and flexible instrument is specifically designed for controlling a diverse range of manual and semi-automatic filling applications where two speed component filling is typically required.

The DAS-72 is ideally suited for controlling the filling of a diverse range of powders, granules or liquids into containers including, sacks, bags, tote bins, IBCs, drums and pails.

This competitively priced unit has a wealth of features normally associated with more expensive units and can be used for both net and gross filling.

The DAS-72 features a very high speed sampling rate of 600 weight readings per second ensuring optimum fill precision and repeatability.

The wide range of user selectable digital filter values further improves performance by minimising the effects from noise and vibration.

The unit has three logic inputs and three logic outputs which form the control basis for the filling process.

The inputs provide 'stop' and 'start' controls as well as a 'container in place' signal to avoid unnecessary spillages.

In a typical filling process, once the start for the filling cycle has been initiated and the presence of the container verified, the filling continues until the 'Coarse' turnover point is reached.

At this point the 'Coarse' output turns off, leaving the 'Fine' output on.

If there is a possibility of a 'surge' of product causing the target value to be exceeded, a 'Blanking Time' can be set, which ignores the 'surge' and prevents an early 'Fine' output shut off.

At the predefined time, the 'Fine' output turns off and the 'fine in-flight delay time' ensures that the product 'in-flight' has reached the container before the final filled weight average is calculated.

The in-flight error is automatically calculated by taking the difference between the required fill weight and the actual weight achieved.

A percentage of this error is then used to 'adjust' the switch off point of the 'Fine' output on subsequent cycles to achieve a more accurate fill.

Sensor Techniques claim the filling module is ideal for both new-build equipment and for upgrading existing filling equipment.

The company can also provide a range of load cells and ancillary mechanical equipment together with technical support.

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