Reference Manual
00809-0100-4840, Rev. BA
July 2008
Rosemount 3100 Series
5-16
Changing the Base Units
(The 3102/3105)
Screen display: b.unit
Factory default: metric (m) or imperial (ft)
The transmitter may be re-configured to operate in a choice of base units:
• meters
•feet
• inches
NOTE:
If the base units are changed, the transmitter automatically re-starts as if it
were a new instrument on first power-up, but will default to the chosen base
units and load factory default values into all other parameters.
NOTE:
This menu option is in the engineering menu “Eng”. See “Accessing the
Engineering Menu (The 3102/3105)” on page 5-6 or see Figure C-4 on
page C-5 for a map of the menu structure.
To change the base units:
a) After entering the “Eng” menu (see the note above), press the green
button
↓ repeatedly until “b.unit” is indicated.
b) Press the blue button
→ to enter the base units selection menu.
The display indicates the present base units on the bottom display line.
c) If these base units are correct, press the red button
↵ to exit to the menu.
(The menu option “b.unit” re-appears. Press
↓ to get to the next menu.)
d) Press the blue button
→ to start the editing mode. The base units flash to
indicate they can be edited.
e) Press the green button
↓ repeatedly to scroll through the three options.
f) Press the blue button
→ to confirm the selected base units. (The flashing
stops.)
g) If the new setting is correct, press the red button
↵ to save. (The
transmitter automatically re-starts as if it was a new instrument on first
power-up.).
h) If the new setting is incorrect, press the blue button
→ to exit to the menu.
The menu option “b.unit” re-appears; re-start at step (b), or press
↓ to
exit the “Eng” menu and then the blue button
→ to change to the PV
display (see Figure C-4 on page C-5 for the menu structure.)