

                            -- HELP SCREEN --


         This screen allows the fluid/gas state for sizing formula
         and also allows the user to calculate for required orifice
         area, or maximum flow capacity, given a known orifice.

                          ͻ
                             FUNCTION KEYS   
                          ͼ

         F1: Press this key to calculate maximum flow capacity
             of a known orifice area.

         F2: Press this key to calculate required orifice area
             based on a given capacity requirement. After the
             required area is calculated, enter selected area,
             and press F1 to recalculate maximum flow rate.

         F3: Press this key to size for Gas/Vapor.

         F4: Press this key to size for Liquid service.

         F5: Press this key to size for Steam service.

         F6: Press this key to reload previously saved results.

         F7: Press this key to delete a previously saved project.
             Press CTRL C to escape.

         F8: Press this key to reindex databases. 


                        ͻ
                           REINDEX FILES   
                        ͼ
             
         When calculations are saved for later recall, they are
         saved under a PROJECT name that you name. If an entire
         project needs to be deleted to free disk space, the key
         F7 will remove the entire project. However, if you want 
         to edit a project and remove only selected tag no's., this
         can be done by pressing Function key F6 and using delete
         to edit. The file (tag no.) will be removed from the project
         file, but a space will remain in the database file where it
         resided. It is necessary to purge the database to free up
         the disk space. Press F8 to reindex the database. A message
         "Enter Database Name or "ALL" with a default of "ALL" will
         appear. Press ENTER for default.  


                       ͻ
                           MULTI-PHASE FLOW   
                       ͼ

         When a sizing calculation is completed, you may press F3
         to enter the result in a multi-phase calculation. As additional
         calculations are performed, they may be added, at which time
         total results are calculated. Results from any screen can be
         added by using the F3 key, or may be deleted using the delete
         key.





                       ͻ
                         VALVE TYPE SELECTION  
                       ͼ

         The first field to appear on the sizing screen is a pop-up
         menu for valve selection. Use the cursor keys to move to
         the type valve and press <ENTER>, at which time the valve
         coefficient of discharge will also be entered automatically.
         If you select "OTHER", it will be necessary to manually enter
         the discharge coefficient. Valve type can be changed at any
         time by pressing the Function Key F5 and changing the type.


                       ͻ
                         API FORMAT FOR PRINT  
                       ͼ

         At the conclusion of the calculation, press function key F2 to
         advance screen to the print format. As you move among the
         fields, some areas will have pop-up menus for selection,
         while others will be user key. However, all menu selections
         can be overridden by selection the "OTHER" option and entering
         your own data. At the completion of this form, press "Y" and
         <ENTER> to print results.


                       SAVING AND RECALLING A FILE


        When a calculation is completed, you may press function key
        F8 to save the results to a database. The prompt will ask
        for a file name, defaulting to the last file name entered.
        From the main menu you can select function key F6 to recall
        saved files. You will be asked for the file name, then press
        <ENTER> and a listing of all records saved under this file
        name will be displayed. Use the cursor key to highlight the
        selection and press <ENTER> for retrieval. If a retrieved
        file is to be saved, you will be asked if you wish to over-
        write the existing file. Pressing "Y" will add this as a new
        record. If "N" is entered, this record will overwrite the
        previously saved record.



                       Press ESC to return to screen.