General information on operation

During regular operation, the system will be in supply mode.

The procedure for decommissioning and recommissioning for extended system standstills is described in the "Decommissioning and recommissioning" chapter.

Valve HPI is controlled via the operating firm's controller (optional for SP3, SP4 and BM/BE). This is not included in the delivery scope of Spectron and is therefore not covered in this user manual.

In the case of a pressure control panel with manual switchover, the HPI valves can be used to define which side is to supply the pressure regulator with gas. The HPI valve must be opened on this side. The other side is the reserve side. The HPI valve remains closed here.

If the reserve side is to become the supply side, the process gas source valve and HPI valve must first be closed on the supply side. The process gas source valve and the HPI valve on the reserve side are then slowly opened so that the reserve side can take over the supply. For the remaining procedure, see: "Exchanging the process gas source”