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34 Micro Motion
®
Series 3000 MVD Transmitters and Controllers
Configuring Security and Language
5.3 Security
Security can be used for the following three functions:
• To control access to the Management menu
• To write-protect the Series 3000 device configuration
• To control how process totalizers and inventories can be reset
Note: If custody transfer is implemented, the write-protection and totalizer reset control functions are
handled by the custody transfer application, and are not available here. See Chapter 14.
Note: If custody transfer (OIML) is implemented, you can also define an alarm log password to
control access to the active alarm log, the alarm event log, and alarm history. See Chapter 14.
5.3.1 Management menu access
Access to the Management menu can be controlled by two passwords:
• The configuration password enables access to all Management menus
• The maintenance password enables access to the Maintenance portion of the Management
menu system
When the Security button is pressed (see Section 4.3.1):
• If security is enabled, you will be prompted to enter a password. Depending on the password
you enter, either the Management menu or the Maintenance menu is displayed.
• If security is disabled, the Management menu is displayed immediately.
The configured passwords are stored even if security is disabled, so you can re-enable them at any
time.
It is not possible to activate only the configuration password or only the maintenance password.
To enable security for the Management menu, set
Enable Security to Enable.
To disable security for the Management menu, set
Enable Security to Disable.
The passwords are a combination of four button presses, using any of the four cursor control buttons:
Up, Down, Left, and Right.
To set a password:
1. Use the menu to select the password you are defining.
2. For
Press 1 through Press 4, specify which cursor control button must be pressed.
To enter a password:
1. Press the four cursor control buttons in the correct sequence.
2. Press
SEL.
5.3.2 Write-protecting the device configuration
When the device is in write-protect mode, the configuration data stored in the device and core
processor cannot be changed until write-protect mode is disabled.
To enable write-protection, set
Write Protect to Enable.
To disable write-protection, set
Write Protect to Disable.
Note: If write-protection is enabled, process totalizers cannot be reset unless the flow rate is zero.