Operating Manual

Accu-Wave Chapter 9 Security, Service & Diagnostic
TN Technologies 9-1
Chapter 9 Security, Service, and Diagnostics
The “Security, service and diagnostic functions” menus is divided into four primary menu
subgroups.
• Security Items: (Password, etc.)
• Diagnostics: System Test, Related Items
• User Service & Related Items
• Factory Service & Related Items
(only available if “Service Only Items” are enabled)
These menu groups are described in this chapter.
Security
Password protection is available to prevent unauthorized personnel from making new setup
entries or changing existing entries. The password is a numeric entry that can be from 1-8
digits in length and include any combination of the digits 0-9. For example, “056,”
“4321,” and “12345678” are all valid passwords. Leading 0’s are part of the password
and must be entered.
Once a password has been set, you must enter this password whenever you use the set up
menus. To disable the password, enter 0 for the password value.
Caution: Do not forget your password! Once a password is established, you
cannot change entries or do fine tuning without the password.
The “entries have been changed xx times” item can be used to check for unauthorized
entries. The value in this entry is updated each time a setup entry is changed and saved.
After you complete the setup of your gauge, note this value and then periodically check
this item to see if the number has changed. If the number has changed, it indicates that one
or more menu setup items have been changed and saved.
The “Keypad is in use” item can also help you detect unauthorized changes by activating
an alarm when the system is accessed by either the keypad or the serial port.