Spectron BE56-2U-VCR, User Manual

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7 | Operation Spectron Gas Control Systems GmbH
20 GES_BE56-2U-VCR_1020
7 Operation
7.1 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 de-
scribed in the "
Decommissioning and recommissioning [
}
28] " 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.
NOTICE
For the actions described in the following chapters, the controller must be connected and ready
for operation and in a manual mode.
7.2 Gas supply interruption
7.2.1 Interruptions to operation for less than 48 hours
For short interruptions to operation (less than 48 hours), the valve on the process gas source
and valve PLI or a valve on the consumer can be closed. No other shut-off and safety measures
are required.
7.2.2 Interruptions to operation for more than 48 hours
For longer interruptions to operation (over 48 hours), the following steps must be carried out:
7.2.3 Putting the pressure control panel into a safe condition
In the event of interruptions in operation for more than 5 days or pending maintenance or servi-
cing, the pressure control panel must be put into a safe condition. First carry out the steps "
In-
terruptions to operation for more than 48 hours [
}
20] ".
The process gas source must be connected during flushing (see " Connecting the process gas
source [ } 18] "). Also observe the " Preparations for commissioning [ } 18] " chapter.
To ensure high gas purity, pressure purging is to be performed as described below.