The following instructions are for loading firmware into the GX-6000 in the field with an IR cable and then loading the PID library into the GX-6000 if it needs it. The PDF files have detailed instructions for the update procedure.
Do not perform a FACTORY DEFAULT in Factory Mode or the PID library which is stored in flash memory will be wiped clean. If this happens, the PID library will have to be loaded again. After loading the new firmware and library (if needed), check the PID alarm points. If they don’t look right, go into Display Mode and select the PID gas again. I recommend using the Legassic cable, but the Actisys IR2002UL will probably work also if that’s all you have and want to try it.