The 990-05-50-01-00 is one model in the 990 series of vibration transmitters. It receives input signals from a 3300 NSv proximity probe and its matching extension cable (available in 5-meter and 7-meter system length options), converts the signal to appropriate peak-to-peak vibration amplitude engineering units, and inputs this value as an industry-standard signal from 4 to 20 mA to the control system for triggering mechanical protection alarms and logic operations.

The 990 series of vibration transmitters offers the following advantages and features.

This integrated proximity sensor requires no external units and features built-in non-isolated PROX OUT and COM terminals and a coaxial connector, providing dynamic vibration and gap voltage signal outputs. Non-interactive zero and range potentiometers below the label support loop adjustment. The test input pin allows for quick verification of the loop signal output using a function generator.

Abnormal/signal suppression circuitry prevents high output or false alarms due to proximity probe malfunction or loose connections.

Mounting options include DIN rail clips or bulkhead mounting screws. Its potting construction makes it suitable for high humidity (up to 100% condensation) environments.

Compatible with the 3300 NSv proximity probe, allowing for transmitter installation in confined spaces.

A detailed selection list is as follows: