For single-point calculations, only one value is needed for each input property. For two-point calculations, two values are needed for each input property.
When using the range option for property calculations, the first input property remains constant. This property requires only one input value. The second property requires that a start value, end value, and an increment value for the range be entered.
Input property values are entered in the boxes to the right of the property name. Type the property value in each of the boxes, as shown in Figure 4. SteamCalc will check for valid input values. Note that the smaller the increment the larger the number of calculation points.
Figure 4: Enter the input property values in the boxes to the right of the property names.