Teledyne LXT-220 - Manual (Page 33)

Dissolved Oxygen Controller Operation
Teledyne Analytical Instruments 33
The protection level for the operational displays is the number on
the left side of the second line. None of the operational displays are
password protected if the protection level is 0. If it is not zero then, with
the exceptions shown in Table 3-1, all displays that affect the operation
of the instrument are protected. An N entry in the table means that the
display is not protected.
Table 3-1: Protection Level Exceptions
level contrast man out 1-point buf
1 N N N
2 Y Y N
3 Y N Y
4 Y Y Y
3.3.1.1 C HANGING P ROTECTION L EVEL
To change the protection level, navigate using the right side
(CALIBRATE) ◄/ ► keys to the old protection level number (3 in the
above screen). Adjust the numerical value using the right side
(CALIBRATE) ▲/▼ keys and then accept the input by pressing either
of the left side MENU SELECT) ▲/▼ keys. The old operational
password is erased if the protection level is changed to 0. Changing from
0 to another value has no effect until a new password is entered. The
display shows no PW if the password has been erased.
3.3.1.2 C HANGING O PERATIONAL P ASSWORD
To enter a new operational password, navigate to the old password
(or no PW) using the (CALIBRATE) ◄/ ► keys and select by pressing
both (CALIBRATE) ◄/ ► keys simultaneously. This brings up the new
operational password screen.
New opr password