
6.2.2
Lockout
The LOI has a lockout feature that prevents nuisance actuation by someone brushing
against the glass window, raindrops, dirt, insects, etc.
This lockout mode is automatically established when no buttons are pushed for 30
seconds (default). You can configure the countdown to lockout.
To unlock the display, input a
Z
pattern. First, push the top left (gray) arrow, then the top
right, followed by the bottom left, and finally the bottom right. The
LK
notation in the
upper right corner of the display disappears. Push the gray arrow at the top left hand
corner once more to enter into the menu structure. Once you move deeper into the menu
structure, the transmitter gives you additional time, so that the lockout initiation doesn't
become a nuisance. This additional revert time is defaulted at one hour and is also user-
configurable.
CAUTION
Excessive dust can prevent the LOI from entering lockout.
This condition can cause uncommanded operations to occur
Always clean the dust and soil away from the LOI screen each time you use the LOI.
6.3
LOI key designations
The gray key (top left) moves one level higher in the menu structure. When entering
numbers, this key moves the cursor to the left.
This key also doubles as an
Enter
key once numbers are entered and when the cursor is
moved to its leftmost position. The new data entry value appears in the top line of the LOI
display once it is accepted.
The blue key (bottom left) acts as a selector when choosing from among a number of
menu items. This key also moves the cursor to the right when entering numbers.
Up
/
Down
keys (to the left side of the keypad) are used to increment up and down when
selecting from a series of menu picks. You can also use them to increment values up and
down when inputting data.
6.4
LOI menu tree
The following menu tree is specific to the Rosemount
™
Oxymitter 4000 and will assist you
in navigating the LOI.
Menu items in normal text display information only. Menu items in italics permit data
entry.
Start up and operate transmitter with LOI
Reference Manual
October 2019
00809-0100-4340
96
Emerson.com/Rosemount
Summary of Contents for Rosemount Oxymitter 4000
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