Product Description:

The 990-10-50-03-00 Vibration Transmitter is intended primarily for the original equipment manufacturers (OEMs) of centrifugal air compressors or small pumps, motors, or fans who prefer to provide a simple 4 to 20 mA proportional vibration signal as the input to their machinery control system.

The transmitter is a two-wire, loop-powered device that accepts input from our 3300 NSv proximity probe and its matching extension cable (available in 5 m and 7 m system length options). 

Application:

Centrifugal Compressor Packages: Used in OEM compressor skid systems in oil & gas processing facilities for continuous vibration signal output into control systems.
Industrial Pumping : Applied in centrifugal and process pumps used in water treatment plants, petrochemical refineries, and chemical production facilities.
Electric Motor Drive : Installed on small to medium industrial motors in manufacturing plants for condition monitoring and automated shutdown logic.
OEM Rotating Machinery Skids: Integrated into packaged machinery systems such as modular turbine, compressor, and pump skids built by equipment manufacturers.

Frequently Asked Questions (FAQ)

Q: Can test equipment with AC power plugs be connected directly to the coaxial diagnostic terminal on the 990-10-50-03-00 transmitter?
A: No, because the diagnostic terminal lacks electrical isolation from the current loop, a specialized test adapter must be used when connecting AC-powered oscilloscopes or analyzers to the 990-10-50-03-00 to prevent ground loops and protect machinery protection integrity.

Q: Does the 990-10-50-03-00 unit require a separate external proximity sensor block to process proximity probe data?
A: No, the 990-10-50-03-00 design features an integrated sensor drive circuit built directly inside its housing, eliminating the need for an external module to drive the probe or condition the signal.

Q: What design protection keeps the 990-10-50-03-00 from outputting false high vibration alerts immediately after the system is turned on?
A: The 990-10-50-03-00 contains an embedded power-up inhibit circuit that deliberately suppresses the loop signal output during initial power application, mitigating errors and false trip logic caused by line voltage transients.

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