A measurement system comprising: a vibration sensor; a control apparatus, configured to receive a signal from the vibration sensor, where the signal is representative of a first numerical value of a sensed parameter, said control apparatus being further configured to generate a display signal; and a display operably associated with said control apparatus, said display configured to depict a display image corresponding to the display signal, the display image including a bar graph having at least one bar wherein the at least one bar comprises a graphical representation of the first numerical value of the sensed parameter in a first color; and two indicia (84, 86, 88, 90, 92, 94, 96, 98) corresponding to second numerical values of the sensed parameter, wherein the second numerical values comprise subcomponents of the first numerical value of the sensed parameter, wherein the relationship between the first and second numerical values is defined by mathematical relationships; wherein the first and second numerical values have the same unit of measurement, wherein the indicia are superimposed on the at least one bar of the bar graph; and wherein the numerical value of the parameter represented by the at least one bar is derived from a mathematical relationship between two subcomponents represented by indicia (84, 86, 88, 90, 92, 94, 96, 98), each of the at least one bar and indicia (84, 86, 88, 90, 92, 94, 96, 98), being movable independently with respect to each other in response to their underlying signals wherein for the subcomponents, the indicia for the numerical values below a critical threshold are shown in a second color and the indicia for the numerical values above that critical threshold but below a higher threshold are represented by a third color and the indicia for the numerical values above that higher threshold are represented by a fourth color. a vibration sensor; a control apparatus, configured to receive a signal from the vibration sensor, where the signal is representative of a first numerical value of a sensed parameter, said control apparatus being further configured to generate a display signal; and a display operably associated with said control apparatus, said display configured to depict a display image corresponding to the display signal, the display image including a bar graph having at least one bar wherein the at least one bar comprises a graphical representation of the first numerical value of the sensed parameter in a first color; and two indicia (84, 86, 88, 90, 92, 94, 96, 98) corresponding to second numerical values of the sensed parameter, wherein the second numerical values comprise subcomponents of the first numerical value of the sensed parameter, wherein the relationship between the first and second numerical values is defined by mathematical relationships; wherein the first and second numerical values have the same unit of measurement, wherein the indicia are superimposed on the at least one bar of the bar graph; and wherein the numerical value of the parameter represented by the at least one bar is derived from a mathematical relationship between two subcomponents represented by indicia (84, 86, 88, 90, 92, 94, 96, 98), each of the at least one bar and indicia (84, 86, 88, 90, 92, 94, 96, 98), being movable independently with respect to each other in response to their underlying signals wherein for the subcomponents, the indicia for the numerical values below a critical threshold are shown in a second color and the indicia for the numerical values above that critical threshold but below a higher threshold are represented by a third color and the indicia for the numerical values above that higher threshold are represented by a fourth color. the indicia for the numerical values below a critical threshold are shown in a second color and the indicia for the numerical values above that critical threshold but below a higher threshold are represented by a third color and the indicia for the numerical values above that higher threshold are represented by a fourth color.