User Manual

OPERATION 6
73
OPTIWAVE 7400-24 C
www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en
6.4.3 Protection of the device settings
The menu item PASSWORD (2.7.5) lets you change the supervisor menu password.
How to change the supervisor menu password
• After you enter the supervisor menu, push 6 × [

], [>
>>
>] and 4 × [

] to go to the menu item
PASSWORD (2.7.5).
• Enter the new 6-character password (push the 4 buttons in any sequence).
• Enter the new 6-character password again.
i If the second entry is the same as the first, the device will go back to the sub-menu list
(2.7).If the second entry is not the same as the first, the device will not go back to the sub-
menu list. Push [^
^^
^] to start the password sequence again and enter the new 6-character
password 2 times.
• Push [^
^^
^] to go back to the "STORE" screen.
• Push [

] or [

] to set the screen to STORE YES
STORE YESSTORE YES
STORE YES and push [^
^^
^].
i The device will save the new password and go back to normal mode.
How to set the supervisor password to "on" or "off"
The supervisor password is set to "on" by default. If it is necessary to set this function to "off"
refer to
Function description on page 63, Table 2: Supervisor menu, menu item PSWD YES/NO
(2.7.4).
6.4.4 HART
®
network configuration
The device uses HART
®
communication to send information to HART
®
-compatible equipment. It
can operate in either point-to-point or multidrop mode. The device will communicate in
multidrop mode if you change the address.
• [>
>>
>].
• [

] to decrease the value or [

] to
increase the value.
• [^
^^
^] to confirm.
This step sets the loop current value. Make
a selection from 3.5, 4, 6, 8, 10, 12, 14, 16,
18, 20 or 22 mA.
• [^
^^
^] 3 times to go back to the default
screen.
The loop current goes back to initial value.
Default screen.
Screen Step Description
INFORMATION!
Make a note of the password and keep it in a safe place. If you lose the password, please speak
or write to your supplier.
INFORMATION!
For more data, refer to Networks on page 49
.