4791A

Dytran model 4791A is a precision true RMS vibration monitoring meter designed to both power and receive signals from IEPE-type accelerometers. It features an adjustable level detector circuit that activates a set of relay contacts when vibration levels exceed user-defined thresholds, enabling automated control or shutdown of connected equipment.

This unit is ideal for continuous vibration monitoring in industrial environments, where real-time feedback and protective action are essential. By calculating the true RMS value of the incoming vibration signal, the 4791A ensures accurate representation of energy content, even in complex or noisy waveforms.

Its integrated IEPE power supply simplifies system setup, eliminating the need for separate signal conditioning hardware. The adjustable alarm levels and relay outputs make it suitable for predictive maintenance, machine protection, and process control applications.

Whether used as a standalone diagnostic tool or integrated into a broader monitoring system, the 4791A enhances safety, reliability, and operational efficiency.