Emerson 9739 Manuel D’Utilisation

Page de 256
Option
Setup
Temperature data
from the sensor
a. Choose View > Preferences .
b. Disable Use External Temperature.
A user-configured
static temperature
value
a. Choose View > Preferences .
b. Enable Use External Temperature.
c. Choose ProLink > Configuration > Temperature.
d. Set External Temperature to the value to be used.
Polling for tempera-
ture
(4)
a. Ensure that the primary mA output has been wired to support
HART polling.
b. Choose View > Preferences .
c. Enable Use External Temperature.
d. Choose ProLink > Configuration > Polled Variables.
e. Choose an unused polling slot.
f. Set Polling Control to Poll As Primary or Poll as Secondary, and click
Apply
.
g. Set External Tag to the HART tag of the external temperature de-
vice.
h. Set Variable Type to External Temperature.
Tip
Poll as Primary
: No other HART masters will be on the network.
Poll as Secondary
: Other HART masters will be on the network.
The Field Communicator is not a HART master.
A value written by
digital communica-
tions
a. Choose View > Preferences .
b. Enable Use External Temperature.
c. Perform the necessary host programming and communications
setup to write temperature data to the transmitter at appropri-
ate intervals.
4.7.2
Configure petroleum measurement using the
Field Communicator
1.
Choose Online > Configure > Manual Setup > Measurements > Set Up Petroleum.
2.
Specify the API table to use.
a. Open the Petroleum Measurement Source menu and select the API table
number.
Depending on your choice, you may be prompted to enter a reference
temperature or a thermal expansion coefficient.
b. Enter the API table letter.
These two parameters uniquely specify the API table.
(4) Not available on all transmitters.
Configure process measurement
50
Micro Motion
®
 9739 MVD Transmitters