Emerson MMI-20011276 Manuel D’Utilisation
Net Oil Computer Supplement
29
Configuring the NOC Application
NOC Ov
er
vie
w
vie
w
NOC Configuration
Using the Displa
y
Be
fo
fo
re
Y
Y
o
u
Begin
NOC Ov
er
vie
w
vie
w
NOC Configuration
Using the Displa
y
Be
fo
fo
re
Y
Y
o
u
Begin
NOC Ov
er
vie
w
vie
w
NOC Configuration
Using the Displa
y
Be
fo
fo
re
Y
Y
o
u
Begin
NOC Ov
er
vie
w
vie
w
NOC Configuration
Using the Displa
y
Be
fo
fo
re
Y
Y
o
u
Begin
4.4
Setting up a water cut monitor
If you will use a water cut monitor:
1. Ensure that the water cut monitor is correctly installed and tested, and configured to report
water cut data in %.
2. Enable the water cut monitor as an external input, as described in Section 4.3, Step 5.
3. If desired, specify a value for
Ext Water Cut Limit
. When the measured water cut exceeds this
value, an alarm will be posted. Micro Motion recommends setting this parameter to the highest
value in your water cut monitor’s range. To disable the alarm, set the value to 100%.
value in your water cut monitor’s range. To disable the alarm, set the value to 100%.
4. Set up a HART polling connection between the Series 3000 device and the water cut monitor
as follows:
a.
Ensure that the primary mA output has been wired to support HART protocol, and that it
has a HART connection to the water cut monitor.
has a HART connection to the water cut monitor.
b.
From the Configuration menu shown in Figure 3-2, select
Inputs>External Inputs
.
c.
Select
Polling Variable 1
or
Polling Variable 2
.
d. Set
Polling Control
to
Poll as Primary
or
Poll as Secondary
.
e.
Set
Polled Variable
to
External Water Cut
.
f.
Specify the tag of the device to be polled.
5. To verify that water cut data is being received, view the current water cut value as shown in
Figure 5-2 (Well Test mode) or Figure 5-3 (Continuous mode). Ensure that the displayed value
matches the value sent by the water cut monitor.
matches the value sent by the water cut monitor.
4.5
Setting up pressure compensation
To set up pressure compensation:
1. Obtain the external pressure value, as described in Section 4.5.1
2. Enable and configure pressure compensation for oil density and water density and/or pressure
compensation for pressure effect, as described in Sections 4.5.2 and 4.5.3.
The same external pressure value is used for both types of pressure compensation.
4.5.1
Obtaining the external pressure value
To obtain the external pressure value, you must set up a HART polling connection between the Series
3000 device and the external pressure device, as follows;
3000 device and the external pressure device, as follows;
1. Ensure that the primary mA output has been wired to support HART protocol, and that it has a
HART connection to the external pressure device.
2. See Figure 3-2. Select
Configuration>Inputs>External Inputs
, and:
a.
Select
Polling Variable 1
or
Polling Variable 2
.
b.
Set
Polling Control
to
Poll as Primary
or
Poll as Secondary
.
c.
Set
Polled Variable
to
Pressure
.
d. Specify the tag of the device to be polled.
e.
Set
Pressure Units
to the units used by the external pressure device.
3. To verify, configure the process monitor to display the external pressure value and observe the
pressure data.