Chapter 8 - Operating Procedures
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MNL000536
Revision 1
03/26/2018
BSGS eV / BULKGUARD eV
© Versum Materials, Inc. as of the revision and date shown. All rights reserved.
Confidential and Proprietary Data
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8
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4.I Tube Switching
Purpose
: This Manual Sub-Section describes the GASGUARD
®
AP11 Controller Program Routine
for Tube Switching. Tube Switching provides an automated method of systematically actuating ISO
container or Tube Trailer air-operated valves without manual intervention. When the Tube Switching
option is purchased, the tube switching program is accessed from the module AP11 controller.
The BSGS eV / BULKGUARD eV system allows for automated tube switching of 2 ISO’s with one
ISO being located on either process inlet. Due to I/O constraints, the tubes cannot be switched on a
one-by-one (also referred to as ‘1x1’) basis. Tubes are instead opened two at a time (‘2x2’), actuated
by a single pneumatic signal from the AP11 controller which has been split to simultaneously feed two
pneumatic tube valves.
Start Tube Switcher Operation
Verify that the downstream process equipment is
ready to receive process gas.
Verify that the manual process flow valves in the
system are open.
Touch anywhere on the graphics portion of the
screen. Display will show a request for
password input.