Q - Rotor zone offers an option of phase lagging or phase leading in the balancing programs. What is this and how do I know which one my instrument is using?

A - Absolute phase can either be measured forward (leading) or backwards (lagging) from the speed reference. Different devices and manufacturers use different systems. Because is manufacturer independent we offer both choices. In the vast majority of devices absolute phase is always lagging which is why the balancing tools always set lagging as the default option.

Q - Other than the trial weight selector the rotorzone balancing tools don’t show any units for weight or vibration. What units are being used?

A - In the balancing tools what you put in is what you get out. All units entered will be the output units with regard to vibration and mass units (i.e if the Trial Weight is in Grams the output displayed on the chart will be in Grams also). Select an appropriate measurement unit based on the available transducers, the bearing type and machine speed. Note that the balancing calculator weight output is always displayed as an integer (whole number).

Q - The rotor zone graphical balancing tools show the correction weight being placed half way down the blade. Is this the correct position?

A - No, the display for both the graphical balance tools is a vector plot not a literal representation of the machine. All weights (trial and correction) must be placed at the same radius.

Q - Is the Graphical Phase Balance available for the iPhone

A - Graphical Phase balance is only listed as available on the iPad due to screen size requirements. It can be downloaded and used on the IPhone but this is not recommended as the small screen size on the phone makes it difficult to use.