Modify Instrument Base Conditions - Intergraph Smart Instrumentation - Help

Use this procedure to modify base condition values when entering data for Control Valve, Relief Valve, or Flowmeter calculations, from the Process Data or Calculation modules.

1. Open the process data sheet for an instrument tag from the Process Data module or the Calculation module.

2. Scroll to the BASE CONDITIONS section.

3. Select a base pressure unit of measure, and beside Pressure type the base pressure.

4. Select a temperature scale, and beside Temperature, type the base temperature.

5. According to the state that you selected under Fluid, select the basic property as follows:

   1. If the state is solid/powder, do one of the following:

      • Select Density @base, select a unit of measure, and type the density value.

      • Select Specific Gravity @base, and type the specific gravity value.

   2. If the state is liquid, do one of the following:

      • Select Density @base, select a unit of measure, and type the density value.

      • Select Specific Gravity @base, and type the specific gravity value.

   3. If the state is water, do one of the following:

      • Select Density @base, select a unit of measure, and type the density value.

      • Select Specific Gravity @base, and type the specific gravity value.

   4. If the state is gas/vapor, do one of the following:

      • Select Density @base, select a unit of measure, and type the density value.

      • Select Compressibility @base, and type the compressibility value.

   5. If the state is steam, beside Compressibility @base, type the value.

6. To save your changes, on the module toolbar, click .