Emerson MICRO MOTION 2700 Installationshandbuch Seite 117

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Transmitter Configuration and Use: Series 1000 and 2000 Transmitters 107
Pressure Compensation, Temperature Compensation, and Polling continued
Troubleshooting DiagramsDefaultsCompensation
4. If you will use a static temperature value:
a. Ensure that polling for temperature is not configured. Polling for pressure is allowed. See
Section 9.4.
b. From the
ProLink menu, open the Configuration panel and click the Temperature tab.
c. Enter the temperature value in the
External Temperature box.
5. Click
Apply.
With a Communicator
To configure external temperature compensation with a Communicator:
1. Press
4, 1.
2. Select
Ext Temp.
a. Select
Enable Ext Temp.
b. Select
Enabled.
c. Press ENTER.
3. If you will poll an external device for temperature data:
a. Press SEND.
b. Press
HOME.
c. Ensure that the transmitter is configured to use the same temperature measurement unit
that the external temperature measurement device uses (see Section 6.4).
d. Follow the polling setup instructions in Section 9.4.
4. If you will use a static temperature value:
a. Ensure that polling for temperature is not configured. Polling for pressure is allowed. See
Section 9.4.
b. Select
Static temperature.
c. Enter the static temperature value.
d. Press ENTER.
e. Press SEND.
f. Press HOME.
9.4 Configuring polling
Polling is used to retrieve temperature or pressure data from an external device.
If you have core processor v2.1 and earlier, the polled temperatuare value is
used for all calculations that require a temperature value.
If you have core processor v2.2 or later, the polled temperature value is used
only for calculation of the derived variable in enhanced density applications
or the CTL value in petroleum measurement applications. The temperature
value from the sensor is used for all other calculations that require a
temperature value.
You may query one or two external devices.
Polling requires HART protocol over the Bell 202 physical layer. You must ensure that the primary
mA output has been wired for HART protocol. See the installation manual for your transmitter.
You can configure polling with ProLink II or the Communicator.
Model 1500 AN
Model 1700 AN
Model 1700 IS
Model 2500 CIO
Model 2700 AN
Model 2700 IS
Model 2700 CIO
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