Manual De Usuario Emerson Enrutador De Red Network Router [71/110 Páginas]

Emerson enrutador de red Network Router

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Installation and Use Manual 65

Transmitter Configuration, Characterization, and Calibration

Meter Verification Transmitter TerminalsData LoggerTransmitter Configuration

5. If you will use a static pressure value:

a. Type the pressure value in the

External Pressure box.

b. Click

Apply.

c. Ensure that neither polled variable is configured to poll for pressure. Polling for

temperature is allowed. See Section 5.8.

5.7 Compensating for temperature

Temperature data are used in several different calculations. Micro Motion sensors always report

temperature data to the transmitter. For greater accuracy, you can configure the transmitter to use a

different temperature value:

• If the temperature is a known static value, you may choose to enter the external temperature in

the software and not poll a temperature measurement device.

• If the operating temperature varies significantly, you may choose to have the transmitter poll

for an updated temperature value from an external temperature measurement device. Polling

requires HART protocol.

Note: If you have core processor v2.1 or earlier, the external temperature data are used for all

calculations that require temperature or values. If you have core processor v2.2 or later, the external

temperature data are used only for calculation of the derived variable in enhanced density

applications or the CTL (Correction for Temperature on volume of Liquids) value in petroleum

measurement applications.

Note: If you poll for temperature, ensure that the external temperature measurement device is

accurate and reliable, and ensure that the transmitter is configured to use the same temperature unit

that the external temperature measurement device is using.

To enable and configure temperature compensation:

1. From the

View menu, select Preferences and ensure that the Use External Temperature

checkbox is checked.

2. If you will poll an external device for temperature data, follow the polling setup instructions in

Section 5.8.

3. If you will use a static temperature value:

a. Open the

Configuration panel and click the Temperature tab.

b. Type the temperature value in the

External Temperature box.

c. Click

Apply.

d. Ensure that neither polled variable is configured to poll for temperature. Polling for

pressure is allowed. See Section 5.8.

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