Air Products GASGUARD TE10, Installation, Operation And Maintenance Manual

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GASGUARD
®
TE10 Distribution System Manual
Air Products and Chemicals, Inc. 7 - 16
7.6 Configuration Menu
The configuration menu contains a collection of files that are used to define the
operation of the TE10 controller. The files establish operating sequences for
valves during various operating modes, define digital alarm responses, and
establish setpoints for analog devices.
Access to the Configuration Menu requires a second or higher level password.
Access to individual files in the menu is further restricted by password security
level based on the content of the files. Many of the files are only accessible by
APCI personnel with 4th level security. This is to prevent changes to the operation
of the system that may cause unsafe conditions.
See Section 8.8 for more details of the configuration menu and descriptions of the
files that the customer may access for changing parameters such as non-critical
setpoints or number of purge cycles, or for viewing only.
7.7 Manual Mode Operation
The Manual Mode file in the Main Menu permits authorized personnel to open and
close any pneumatic control valves individually. Manual Mode provides a means
of flowing purge gas, weld shield gas and certification gas during system
installation and start-up procedures. It also provides a means of flowing purge gas
while maintenance or repairs are being performed.
Access to Manual Mode operation is restricted to 2nd or higher level supervisory
personnel. See Section 8.6 for detailed instructions for Manual Mode operation.
Only experienced operators should operate
the Distribution System in Manual Mode.
Operating valves out of their proper
sequence could potentially cause damage
to the product by interrupting or providing
insufficient gas flow. Manual operation
should not be used for process gas flow as
critical shutdown alarms may be disabled
in Manual Mode.