57
Reference Manual
00809-0200-4840, Rev BA
December 2014
Section 4: Configuration
4.
Select
CURRENT
.
5.
Select
Up Range Val
.
6.
Follow the on-screen instructions to edit and save the new setting.
(Press the
Enter
(
) key if prompted to change the mode to “off-line”).
7.
Select “
Quit
” to exit to the previous menu.
4.3.19
Lower Range Value (P016)
This defines the process value (PV) represented by a 4 mA output from the transmitter.
The span of the 4–20 mA current output is defined by the
Upper Range Value
parameter
) and the
Lower Range Value
parameter.
As an example, consider a tank with a 120 gallons capacity. When empty, a 4 mA output current
is required from the transmitter. Therefore, the lower range value is set to 0. The upper range
value is typically set to 120 (gallons) for the 20 mA output current to indicate an full tank.
The lower range value can be greater than the upper range value, in which case the current
output will decrease for an increasing process value (PV).
Note
The displayed units are selected using the parameter
Primary Variable Units
(see
). Changing units does not re-scale the lower range value.
Field Communicator or AMS
To view or change the lower range value:
1.
From the
Home
screen, select
2: Configure
.
2.
Select
2: Manual Setup
.
3.
Select
1: Basic Setup
.
4.
Select
4: Lower Range Value P016
.
5.
Input a new value, and then select “
ENTER
” to save it.
6.
Press “
SEND
” to update the transmitter.
Note
When messages appear, take appropriate action if needed and press “
OK
”.
Fast Keys
2, 2, 1, 4
Lower Range Value P016
0 ft
0
ESC
DEL
ENTER
HELP
w
s
q
a
z
Lock
Shift
@ &
á ü
x
e
d
c
r
f
v
t
g
b
y
h
n
u
j
m
*
-
+
/
.
0
7
4
1
8
5
2
9
6
3
i
k
o
l
FN
(Field Communicator Screen)
Summary of Contents for 3107
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