Old Da Systems Panel.......user Guide

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We have just taken over an old DA Systems (when they were based at Southall !) Monitor VI control panel.

The customer still had the original installation instructions and we managed to crash and reprogramme it very easily to put an engineering code into it, only then did we have a slight problem.

We have no user guide and can find no information in the installation manual on how to change a user code.

The panel is otherwise in excellent working order dispite its age and the customer is relluctant to change the panel at this time just for the sake of a code !

Does anyone out there have either a copy of the user guide that we can emailed or faxed over or failing that can they just remember how to put a user code in ???

Thanks