If bands become blackened, or contaminated with foreign materials the band should be replaced.

After replacing a Heatseal Band, an AutoCal must always be done to assure accurate control.

What is the AutoCal that is mentioned when changing the band?
AutoCal is an automatic function of the controller that passes a small current through the heatseal band in order to determine the resistance of the band at ambient temperature. The entire operation takes less than 15 seconds.

How often should the Teflon® Cover Strip be replaced?
Cover strip is an inexpensive consumable that contributes to the finished look of the seal. We recommend that it be replaced as soon as the appearance of the seal or the release properties of cover strip degrade. As with the heatseal band, the frequency of replacement is determined by the material, the sealing temperature, seal time, and cycle rate.

How often should the Silicone Strip, Siglaha, Durit or other Teflon® Tapes be replaced?
These materials also contribute to the final appearance of the seal. We recommend that they be inspected at each Heatseal Band replacement. If degraded or deformed, they should be replaced.

Is there anything mechanical to check or adjust?
Jaw bars should be checked for their proper alignment, both when standing and when in operation. Check all bolts and screws on the jaw ends for tightness. This can greatly affect the performance of the system.

What kind of maintenance does the Ropex Controller require?
The controller is virtually maintenance-free. Besides keeping the faceplate clean and all electrical connections tight, the controller needs no maintenance. A yearly Calibration service is available for customers who wish to maintain records of sealing operations for purposes of validation.

It is important to remember that the controller is measuring very small values of resistance in the heatseal band. For this reason, we cannot stress enough the importance of tight, well-made, electrical connections in optimizing your system.