Pall LevMixer DB-300, Руководство оператора

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Document #: 020-17475-00 Revision: E Page #: 35 of 63
P. OPERATOR CONTROL INTERFACE GUIDE
P.1 Navigating the Levmixer control screen
Each screen in the LevMixer control software has a number of common elements.
1. The window bar shows the name and/or status of each screen.
2. To return to the previous screen, press the back button in the upper right corner of
the screen.
3. Screen buttons corresponding to critical commands like START, STOP, PAUSE, etc… are
protected from inadvertent activation by a delay function. To activate these
commands the operator should press and hold the button until the indicating bar in the
top of window completely fills (2-3 sec). A request to hold the command button is
shown also indicated as text above the indicating bar.
4. Time is indicated on the operator interface in hh:mm format unless otherwise specified.
5. Each operation mode has its own interactive screen, which is either displayed
automatically (failure, power up) or by operator choice from the Main Menu
.
P.2 User Access Levels
Login function is available through the PW button in the left upper corner of each
screen (except informational screens and entry screens). All passwords are group
passwords, with a minimum of six uppercase, lower case or numeric characters. In total
three group logins are available: Operator, Supervisor, and Maintenance.
Maintenance login is only available while the system is in power up mode. The login
time period is controlled via a program setup parameter. Access is automatically set to
the default (common) level upon expiration of a prescribed time period since login.
Access to LevMixer control software functions is supported using the following levels:
Common (default) functions
 Use of Power up and Manual mode for full access (Sections P.3 and P.5).
 Use of Failure mode interactive screens for full access
 Use of Auto mode and Remote mode for view only access (Sections P.4 and P.6).
 No password protection
Operator: Includes all Common functions, plus…
 Use of Recipe start access (Section P.4).
Supervisor: Includes all Common and Operator functions, plus…
 Use of Auto mode and Remote mode for full access (Sections P.4 and P.6).
 Access to a limited set of parameters (Sections P.8).
 Ability to change the Password for the Supervisor and Operator groups.
 Ability to change the Automatic logout time.
Maintenance: Includes all Supervisor functions, plus…
 Full access to system and program parameters.
 The ability to skip power up logic.