Bently Nevada 990-05-50-02-00 2-Wire Vibration Transmitter | 3300 XL

Product Overview

The Bently Nevada 990-05-50-02-00 functions as a high-performance, 2-wire vibration transmitter designed for seamless integration with existing control systems. This device consolidates the signal conditioning of an eddy current proximity probe into a linear 4-20 mA output. By utilizing a loop-powered architecture, it simplifies field wiring while providing continuous machinery health data to PLCs or DCS. We supply this unit as 100% Brand New and Original, ensuring peak performance for your critical rotating assets.

Part Number Breakdown

The 990 series follows a precise modular configuration to match specific probe systems and environmental requirements:

Technical Specifications

This transmitter delivers laboratory-grade precision in a rugged industrial form factor:

• Output Type: 2-Wire 4-20 mA loop current.

• Measurement Range: 0 to 5 mils (0 to 127 microns).

• Dimensions: 10 cm x 7.5 cm x 5.2 cm.

• Weight: 0.44 KG.

• Country of Origin: USA.

• Power Requirements: Accepts loop voltage from +12 to +35 Vdc.

• Compatibility: Interfaces with 3300 XL 8mm proximity probes and extension cables.

Engineering Advantages

The 990-05-50-02-00 addresses specific industrial installation challenges:

• Minimized Wiring Complexity: The 2-wire design reduces cable costs and installation time. It draws power directly from the 4-20 mA loop, eliminating the need for separate power conductors in the field.

• DIN Rail Efficiency: The compact 10 cm footprint allows for high-density mounting. Engineers can fit multiple transmitters within a single small junction box near the machine train, reducing the distance of sensitive raw-signal cabling.

• On-Site Diagnostics: Despite its simple 2-wire interface, the unit features a buffered "Prox Out" terminal. This allows vibration analysts to plug in a portable data collector and view the raw orbit or time-base waveform without disconnecting any wires.

• Ground Loop Protection: The transmitter’s internal circuitry isolates the signal to prevent ground loop interference, a common issue in large industrial plants that causes false alarms or erratic readings.

FAQs

Does this unit support 7-meter or 9-meter cable systems?

No. The "-00" suffix designates a 5.0-meter system length. You must use a probe and extension cable that combined equal 5.0 meters. Using a different length will result in significant calibration errors and non-linear output.

What happens if the probe signal is lost?

The transmitter incorporates a "NOT OK" status. If the probe or cable fails (open or short circuit), the loop current drops below 3.6 mA. This allows your PLC to distinguish between "Zero Vibration" and a "System Fault," preventing false trips.

Can I mount this transmitter directly on the machine?

While the unit is rugged, we recommend mounting it in a NEMA 4X or IP65 rated junction box. This protects the terminal connections from oil, moisture, and extreme vibration, ensuring the 100% brand-new circuitry reaches its maximum service life.

Is this a genuine Bently Nevada product?

Yes. We only supply 100% Brand New units manufactured by Bently Nevada in the USA. Each device carries the original serial number and factory seals to ensure authenticity and E-E-A-T compliance for safety-critical applications.