COMMAND LINE OPTION: When loading the program, you have several options available. By including /Fxx and /Bxx, on the command line, the colors you want to use will beset automatically. If you include /NB the sounds, generated when an error is made, will be suppressed. The color codes can be copied from the color select screen, they are displayed in the box marked "Current Choice". The /FXX option sets the foreground color, while /Bxx sets the background color. Following are several examples of valid command line entries... EEF/F11 Set foreground light blue EEF/F11/B01 Set foreground light blue / background blue EEF/F11/B01/NB Set foreground light blue / background blue / suppress sound GENERAL INFORMATION: Please follow the instructions below while running the EEF program. First select the proper subject from the main menu. Once the new menu is displayed you will have to select an appropriate topic. The computer will then display this screen. The first few lines, starting at the top of the monitor will give a brief description of the area you have accessed. If a prompt will require more than a one character response, then a window will be displayed. Thewindow has a wrap feature, which works as follows; as the window becomes filled,characters on the left will be dropped, as new characters are added on the rightside of the window. The BACKSPACE key can be used to eliminate characters, from the right side of the window, one at a time. When you are sure that you have entered the data properly, press the RETURN key, this will allow the computer to read and store the data. When all the necessary data has been entered the computer will solve for the unknown value, or perform a conversion, and display the result. The escape (ESC) key is always enabled, and can be used in any area,to exit and return to the most recent menu. Use this method to exit the program,and return to DOS, from the main menu. ELECTRONIC: This section of the program will calculate various electronic related formulas as listed below... Ohms law (DC) Coupled inductance Ohms law (AC) Impedance Resistance total Resonance Capacitance total Admittance Inductance total Susceptance Mutual inductance Conductance Most sections will calculate several different derivatives of a formula, for instance, the resonance area has the capability of solving not onlyfor resonance, but also capacitance, or inductance in a resonant circuit. In theareas where this is possible, you will be given several choices then, by user selection, the formula for the specified quantity will be performed. The formula used to arrive at the result is displayed on the screen at the end of any calculation. The standard print screen function can be used to obtain a hard copy, the screen is also time and date stamped, as a further aid to the user. ELECTRICAL: This section of the program will calculate various electrical related formulas as listed below... Efficiency Required fuse, wire size Power factor Wire resistance Amperes from horsepower Voltage drop Amperes from kilowatts Conduit fill Amperes from kva Kvar sizing Kilowatts and KVA Supply systems The left column represents formulas that can be used for calculating both single and three phase circuits. The other formulas are not phase dependantand can be used for any circuit configuration. Efficiency and Power Factor are calculated and displayed on the screen as a percent. Also, when entering data at an Efficiency or Power Factor prompt, the data must be input as a percent. The supply system area calculates the current draw, by a load, on any conventional power system. This is convenient for 60hz to 50hz conversions. The formula used to arrive at the result is displayed on the screen at the end of most calculations. The standard print screen function can be used to obtain a hard copy, the screen is time stamped, as a further aid to the user. NUMBER SYSTEMS: This section of the program will evaluate, and change a quantity in onenumber system to an equivalent value in another system. The number systems used in this section are as follows... Decimal (base 10) Hex (base 16) Octal (base 08) Binary (base 02) The current lower and upper conversion limit is: Decimal:+/-1048575 Binary :1111 1111 1111 1111 1111 Octal :3777777 Hex :FFFFF If a value outside of these limits is entered or calculated, an error message will be displayed indicating an overflow has occured. WORLD WIDE VOLTAGE DATABASE: This section of the program provides a current list of the worlds electric power supplied to consumers. The list covers a wide range of countries,and includes frequency, system (wye/delta), single phase voltage, and three phase voltage, when available. All voltages listed are alternating current (AC).A wye or star system will have a high voltage that is 1.732 times the low voltage, for example 120/208. A delta system will have a high voltage that is 2 times the low voltage. If a single voltage is listed under the single phase column, then it can be assumed that the consumer has only the one voltage available, and that it is a two wire service, (one phase wire and one neutral). Two voltages listed under the same column would indicate that the consumer has a three wire service, and both are available, (two phase wires and one neutral).A three phase service, when available, will normally be furnished with four wires, (three phase wires and one neutral). The higher voltage listed can be either single or three phase, but the lower voltage will always be single phase. CALCULATOR: An on-screen calculator is available to the user anywhere in the program. To access this feature just press the F(1) function key. A short list of special features will be displayed, along with the calculator itself. The capabilities include the normal four basic functions, plus squaring, square root, reciprocal, and exponential math. The current result in the display can also be exported back to the main program. The following list will define the special uses of the function keys while the calculator is displayed. F(1) - Clear the display. F(2) - Change the sign of the result. F(3) - Export the result back to the main program. F(4) - Place the value, PI, into the result window. F(5) - Calculate the square of the current displayed result. F(6) - Perform the reciprocal function on the current displayed result. F(7) - Perform the square root function on the current displayed result. F(8) - Perform the exponential math function using the previously entered value as the base, and the current displayed value for the exponent.
