Configuring the Filling and Dosing Application

7.3.1Purge

Note: Two-stage discrete filling is not supported if a purge cycle is configured. If this functionality is required, configure the mA output as a three-level output, to control the fill, and configure Channel C as a discrete output, to control the purge.

If purge will be performed, one of the following valve control configurations is required:

•Two discrete outputs (one may be the mA output configured as a discrete output). One must be assigned to the primary valve and the other must be assigned to the secondary valve. The primary valve is used to control the fill, and the secondary valve controls the purge.

•The mA output configured as a three-level output, and Channel C configured as a discrete output assigned to the secondary valve.

The second discrete output is typically set up to control compressed air or a vacuum. These techniques are used to clear any process fluid that may be left in the piping from the previous fill.

There are two purge modes: manual and automatic.

•If Manual is configured, the Begin Purge and End Purge buttons on the Run Filler window are used to control the purge. The End Fill button also stops a purge.

•If Auto is configured, the purge starts automatically after the configured Purge Delay, and continues for the configured Purge Time. The purge may be stopped manually using the End Fill button.

In both cases, the discrete output assigned to the secondary valve transmits an Open signal when the purge begins, and transmits a Closed signal when the purge ends. The primary valve remains closed throughout the purge.

The purge can be stopped at any point, by using the End Purge or End Fill button.

7.3.2Cleaning

Cleaning does not require any special valve configuration. When cleaning is started, all valves assigned to the system (except any valves configured for purging, as discussed in the previous section) are opened; when cleaning is stopped, all valves assigned to the system are closed.

Typically, cleaning involves flowing water or air through the system.

7.4Configuring the filling and dosing application

To configure the filling and dosing application:

1.Open the ProLink II Configuration window.

2.Click the Filling tab. The panel shown in Figure 7-3 is displayed. In this panel:

a.Configure the flow source (see Section 7.4.1) and click Apply.

b.Configure Fill Type and other filling control options (see Section 7.4.2) and click Apply.

Note: You must configure Fill Type before configuring valve control.

3.Configure valve control as required:

•If you are configuring a one-stage discrete fill, skip this step and continue with Step 6.

•If you are configuring a two-stage discrete fill, configure Open Primary, Open Secondary, Close Primary, and Close Secondary (see Section 7.4.3 and Table 7-4), then click Apply.

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Micro Motion® Model 1500 Transmitters with the Filling and Dosing Application

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Emerson Process Management 1500 manual Purge, Cleaning, Configuring the filling and dosing application
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1500 specifications

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