Meech launches closed loop static control system

Meech International has developed a technology that it claims breaks new ground in the field of electrostatic control and enables customers to increase their process productivity and profitability. ‘Not only does the new 977CM Pulsed DC controller provide the first true closed loop static control system, but its design also incorporates a range of features that make it easier for the user to sustain optimum performance and extend the cleaning interval,’ said the company in a statement.

‘The ionizing bar is a key component in any static control system,’ said David Rogers, international product manager. ‘However, it is the nature of such bars that they become contaminated during use and have to be cleaned regularly in order to remain efficient. Depending upon the application, this can be as often as once a week. Reducing the downtime required for cleaning results in a direct increase in productivity. 

‘The new 977CM system has the ability to continuously monitor output from the ionizing bars and will automatically adjust the input voltage to compensate for the adverse effects of contamination. When this has increased to a preset level (typically 25 percent), further deterioration in bar performance will alert the operator, via local audible and visible warnings and remote alarm signals, to the need to clean the bars.’

The 977CM also features a fully automated closed-loop feedback system. A sensor bar detects residual voltages on web paths and rewinds and communicates with the 977CM unit to instruct it to tune its output to ensure the best possible charge neutralization for the current operating conditions. 

‘Optimizing static control at all times makes it possible to improve finished product quality, whether this is on an unwind/rewind or slitting unit, a packaging line or printing press,’ said David Rogers. ‘The closed loop facility means that current information relating to the residual electrostatic charge in the material being handled is always available on the clear LCD display. This data can be transmitted to allow remote monitoring and logging for quality assurance purposes.

‘The 977CM is extremely flexible and can be set to provide accurate neutralization of static charge regardless of any changes to the material being handled, running speeds or ambient humidity, which is vital for improving throughput in any subsequent processes.’  

This latest addition to the Meech range, which will be available from April 2009, can be connected to existing Meech Pulsed DC static elimination systems. The keypad on the front of the unit enables the 977CM to be set up to maintain the optimum output of the ionizing equipment, while a lock facility prevents unauthorized or accidental alteration of the desired settings. 

Click here for more stories about Meech on L&L.com.