Rochester Instrument Systems 4644S Vibration Monitor Module

The RIS 4644S is an industrial vibration monitoring module designed to provide continuous measurement of machine vibration levels in G‑force units. It offers front‑panel visual indication, alarm status outputs, and recorder output for integration with control or protection systems. Ruggedly built for use in rotating equipment condition monitoring applications.
Technical Specifications (no blank lines):
Model: 4644S Vibration Monitor Module
Measured parameter: Vibration level in G’s (front analog scale 0–10 G)
Input sensitivity: 50 mV/G (per module label and matching catalog variant)
Recorder output: 0–10 VDC full scale (FS)
Status indicators: DANGER (red), ALERT (yellow), OK (green), PROBE indicator (front panel)
Probe connection: Front‑panel coaxial connector for vibration probe input
Module format: Rack‑mount plug‑in card, Rochester Instrument Systems standard housing
Typical use: Industrial machinery protection, vibration threshold monitoring, alarm/shutdown signaling
Dimensions (approx.): 11.5 in × 1.25 in × 7 in (typical module dimensions from catalog listings)
Weight: approx. 1.35 lbs
Manufacturer: Rochester Instrument Systems (RIS), Columbus, Ohio
Country of manufacture: USA Please review pictures carefully and let us know if you have any questions!