
Options
October 2016
Reference Manual
00809-0100-4808, Rev DA
52
Options
B.3.1 Custom meter configuration
The user-configurable scale is a feature that enables the LCD display meter to display flow, level, or custom pressure units. The meter can
be configured using a HART
®
Communicator (see
Table C-1 on page 62
).
The user-configurable scale feature can define:
Decimal point position
Upper range values
Lower range values
Engineering units
Transfer function
To configure the meter with a HART Communicator, perform the following procedure:
1. Connect the communicator to the transmitter. Before connecting a communicator in an explosive atmosphere, make sure the
instruments in the loop are installed according to intrinsically safe or nonincendive field wiring practices.
2. From the
ONLINE
screen, select
1 Device Setup
>
3 Basic Setup
>
7 Meter Options
>
2 Custom Meter Setup
.
3. To specify decimal point position:
a. Select
1 Sel dec pt pos
. Select the decimal point representation that will provide the most accurate output for your
application. For example, when outputting between 0 and 75 GPM, select
XX.XXX
.
b. Go to
Step 8
.
4. To specify a custom upper range value:
a. Select
2 CM Upper Value
. Enter the value the transmitter should read at the 20 mA point.
b. Go to
Step 8
.
5. To specify a custom lower range value:
a. Select
3 CM Lower Value
. Enter the value the transmitter should read at the 4 mA point.
b. Go to
Step 8
.
6. To define custom units:
a. Select
4 CM Units
. Enter the custom units (five characters maximum) the meter should display.
b. Go to
Step 8
.
7. To select the transmitter transfer function for the meter:
a. Select
5 CM xfer fnct
. Enter the transmitter transfer function for the meter. Select
sq root
to display flow units. The custom
meter transfer function is independent of the analog output transfer function.
8. Select
Send (F2)
to upload the configuration to the transmitter.
HART Fast Keys
1, 3, 7, 2
See
“Safety messages” on page 51
for warning
Содержание Rosemount 3051N
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