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Description：

The part number 990-05-50-03-05 refers to a Bently Nevada 990 Vibration Transmitter. It is a 2-wire, loop-powered device used by OEMs (like centrifugal air compressors, small pumps, motors, and fans) to convert raw proximity probe vibration signals into a proportional 4 to 20 mA control signal.

The 990 Vibration Transmitter is intended primarily for theoriginal equipment manufacturers (OEMs) of centrifugal aircompressors or small pumps, motors, or fans who prefer toprovide a simple 4 to 20 mA proportional vibration signal asthe input to their machinery control system.

The transmitter is a two-wire, loop-powered device thataccepts input from our 3300 NSv proximity probe and itsmatching extension cable (available in 5 m and 7 m systemlength options).

Specification：

Frequently asked questions

Q1: What is the Bently Nevada 990-05-50-03-05 Vibration Transmitter?

A1: It is an industrial vibration transmitter used for continuous vibration monitoring and signal transmission in rotating machinery protection systems.

Q2: What is the 990-05-50-03-05 full-scale measurement range of this model?

A2: The 990-05-50-03-05 full-scale option “05” corresponds to 0–5 mils peak-to-peak (0–125 μm peak-to-peak).

Q3: What is the 990-05-50-03-05 system length of this transmitter?

A3: The 990-05-50-03-05 system length option “50” corresponds to 5.0 meters (16.4 feet).

Q4: What mounting configuration is included?

A4: The 990-05-50-03-05 mounting option “03” includes DIN clips and screws for installation.

Q5: What is the 990-05-50-03-05 main function of this vibration transmitter?

A5: Its main function is to convert vibration measurements into standardized output signals for machinery monitoring and control systems.

Product Applications

Oil and Gas Chemical Industry: Monitors various pump sets and centrifugal air compressors in high-risk environments to prevent leaks or explosions caused by excessive vibration.

Power and Energy: Applied to small and medium-sized steam turbines, generators, large industrial fans, and water pumps, ensuring high availability to prevent unexpected unplanned downtime.

Metallurgy and Heavy Industry: Monitors bearing vibration in continuously operating equipment such as blowers, exhaust fans, and conveyor belt drive motors.

Water Treatment and Manufacturing Plant : Integrates with general-purpose PLC systems for low-cost online condition monitoring of process water pumps and units.