Dynalco SWT-1000 Speed Switch/Transmitter Manuel d'utilisateur télécharger pdf (Page 10)

Operating Instructions SWT-1000 DYNALCO

SWT-1000.r2.0609 8

3.2 Machine factor

The machine factor establishes the relationship between sensor frequency (Hz) and corresponding

speed (RPM).

Machine Factor = Frequency

RPM

If the # gear teeth and RPM are known, use the following formula to calculate corresponding

frequency:

Signal Frequency (Hz) = (RPM) X (Teeth or Discontinuities)

Another way to calculate the machine factor is:

Machine Factor = (Teeth or Discontinuities)

Note: The above formulas are based on the gear or target turning at the same speed as the

machine being monitored, ie: no step up or step down gear ratios involved.

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Dynalco SWT-1000 Speed Switch/Transmitter Manuel d'utilisateur Page 10