REO offer a range of vibration measurement instruments that are used in conjunction with an accelerometer.

SMW 3000 Measurement Instrument
                                                          

The SWM 3000 is a portable instrument that is used for tuning, servicing and testing vibratory feeders.The instrument is used in conjunction with an accelerometer and it can display, amplitude (deflection), throughput, frequency and acceleration (g).

REOVIB 6050 Pro Tool
                                                    
The REOVIB 6050 test set is a microprocessor controlled service unit for adjusting output power and determining the resonant frequencies of a vibratory feeder. The unit consists of a frequency converter for operating the vibratory feeder, and an electronics module for measuring and displaying the oscillation frequencies. All operating controls are mounted conveniently in the unit's front panel. The unit generates a frequency with a range of 35...140 Hz that serves to operate a vibratory feeder. The best operating frequency can either be adjusted manually or automatically by means of an
amplitude sensor and the integrated optimum frequency search function. The analog meter displays the RMS value of the electromagnet's operating current. The digital indicator provides a permanent display of vibration frequency or output
voltage in percent.