KROHNE OPTIWAVE 7300 C Handbook page 56

How to protect your gauge settings
Protect your settings by following this path to the Passwords menu
Advanced Setup > Device Setup > Passwords
Using this menu, you can
• switch on or off restricted access to program mode for which a supervisor password is needed. If
switched off, all users will be able to display device information and change quick setup and advanced
setup settings.
• change the supervisor password
Changing the supervisor password
1. From the Advanced Setup menu, select the Device Setup submenu, then Supervisor.
2. Type the new password (six characters using any of the four keys below the screen) then retype it to
confirm. If the second set of characters is not the same as the first, the device will display the error. Press
"escape" to reset and repeat step 2.
3. The screen will return automatically to the Password submenu.
Distance measurement
Distance measurement depends on a number of factors, covered in the menu items below
• tank height
• blocking distance
• reference offset
These will influence the effective measuring range of a TDR level meter and the point from which
measurements are taken.
OPTIWAVE 7300 C
Handbook OPTIWAVE 7300 C
56