21
Reference Manual
00809-0200-4840, Rev BA
December 2014
Section 4: Configuration
4.
Select
Base Units
.
5.
Follow on-screen instructions to select and confirm the new base units.
6.
Select “
Quit
” to exit to the previous menu.
7.
To get the same base units on the control unit, switch the power off and then on again.
The control unit prompts for the transmitter’s
Bottom Reference
value (
) in
the new base units.
Note
The display units (reported units) of the transmitter’s PV (Process Value) can be
changed to
metric
or
imperial
measurement units using the parameter
Primary
Variable Units
), but this does not automatically re-scale the PV.
4.2.2
Set as empty
If the bottom reference is unknown and the tank is empty, the transmitter can change the
Bottom Reference
value (
) to the
Distance
measurement with the tank empty.
P010
= (
D910
-
P060
)
Where:
P010 = Bottom Reference setting.
D910 = Distance measurement (see
P060 = Distance Offset setting (see
Field Communicator
To select the Set As Empty command:
1.
From the
Home
screen, select
2: Configure
.
2.
Select
2: Manual Setup
.
3.
Select
2: Level
.
4.
Select
3: Present Depth
.
5.
Select
2: Set as Empty
, and then press “
ENTER
”.
Note
When messages appear, take appropriate action if needed and press “
OK
”.
Set As Empty is also available at Fast Key sequence 2, 1, 2.
Fast Keys
2, 2, 2, 3, 2
Select:
1. Present Depth
2. Set as Empty
3. Exit
2. Set as Empty
ENTER
ABORT
(Field Communicator Screen)
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