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  • Users: d23
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  1. d23

    Lasater PVT

    All, Does someone have Lasater Pb calculation in an EXCEL file that they could share? Thanks
  2. d23

    Auto Run Macro

    All, I need to run a macro anytime a cell value changes, but the cell is a formula, not just a static value. I have tried the following code and it works fine if I manually enter a value in the target cell, but if I use a formula in the target cell it does not work. Is there a way to run the...
  3. d23

    multi page user form

    All, I am using a "multi-page userform" to perform several static calculations in a file. The multi page user form always opens to the first sheet tab in the user form. Is there some way to open a multi page user form on a page (sheet tab) other than page 1? Thanks D23
  4. d23

    Controlling File Distribution and Copying

    All, Is there a way to read the MS EXCEL Product ID number into a file. If I can read the ID number I can use it to limit use of a file to only computers I approve. I have to distribute some files I wrote and need to prevent the files from being copied to other machines. If there is a...
  5. d23

    Field Weakening

    All, Is there a simple way to calculate motor size required when operating in an extended speed range for a squirrel cage type motor? As an example assume the following: I have a 380-volt, 50-hertz input supply to a ASD. For simplicity sake assume I can get 380 volts out of the drive. At...
  6. d23

    Start-up Macro

    All, I need to run a text disclaimer on start-up. Can I make a macro run when a file opens that would display text only? What I am looking for is a command similar to \0 in Lotus. Thanks D23
  7. d23

    Forms Combo Box Format Control (Auto Update Range)

    I am using a combo box from the “FORMS” toolbar. In the format control where you select the input range is there a way to automatically update the range? I would like to write a series of “IF” statements that will determine the number of rows selected in the box. This selection will be...
  8. d23

    Lotus Window Off

    All: Lotus had a macro function named "window off." Is there a VBA code that does something like that? I'm am trying to freeze the window while a long macro runs. From memory the Lotus command(s) were: {windowoff} {windowon} Thanks in advance
  9. d23

    Hazen-Williams / Driscopipe

    All: I need to use a calculated friction loss in a spread sheet. This is a cool, clean fresh water application, so I assume Hazen-Williams will be reasonably accurate. I have looked, but cannot find a “C” factor for Driscopipe 1700 series. The formula I plan to use is: F = K * L...
  10. d23

    Water Well Sub Motors

    All: I am looking at a possible application that will require a "water well type" submergible motor. I know Franklin and Pleuger are out there. There must be others. I'm looking for med voltage, 500+ HP. I need reliability. Any ideas or suggestions of who to check or who to avoid...
  11. d23

    Slurry pump seals

    All: My experience with slurry pumps is zero… I’m getting ready to search the net for crash course info. If anyone knows some good links I would appreciate it. The current problem: Within the next several days or weeks I have to review some slurry pumps that are operating in series due to...
  12. d23

    VSD rated motors

    All: I have a few questions about VSD’s that is the result of reading other threads referring to motors needing to be VSD rated. I have not worked with drives in several years and realize that the technology has changed. Please correct me with my outdated assumptions. I have seen several...
  13. d23

    Specific Heat of Salt Water

    Hello All: I need some help with a formula for specific heat. The Specific Heat of fresh water at 60 degree F is 1 Btu/lb F. Fresh water has a specific gravity of 1.00. Sea water has a specific gravity of 1.0257 and a specific heat of 0.94. Is there some calculation that will give me the...

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