990-05-XX-01-00 | Bently Nevada 3300 XL Vibration Transmitter

Product Overview

The Bently Nevada 990-05-XX-01-00 functions as a high-performance, 2-wire vibration transmitter designed for continuous machinery protection. This device integrates the Proximitor sensor and signal conditioning into a single module, converting the raw eddy current signal from a proximity probe into a linear 4-20 mA output. This allows for direct monitoring via a PLC or DCS without requiring an expensive rack-based monitor. We provide this unit as 100% Brand New and Original, ensuring your critical rotating equipment operates within safety limits.

Part Number Breakdown

The 990 series configuration defines the specific scale and mounting for your application:

Technical Specifications

This transmitter delivers laboratory-grade precision in demanding industrial environments:

• Output Signal: 4-20 mA current loop (Proportional to vibration/position).

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

• System Length: 5.0 meters (Calibrated for 5m probe/cable combinations).

• Frequency Response: 0 to 12,000 cpm (0 to 200 Hz).

• Input Compatibility: Accepts 1 non-contacting 3300 XL 8mm Proximity Probe.

• Power Requirements: Requires +12 to +35 Vdc loop power.

• Operating Temperature: -50°C to 120°C (-58°F to 248°F).

Engineering Advantages

The 990-05-XX-01-00 solves several industrial monitoring challenges:

• Cost-Effective Infrastructure: The 4-20 mA output eliminates the need for dedicated vibration monitoring racks. You feed the signal directly into your existing plant control system (PLC/DCS), significantly reducing the cost-per-point for balance-of-plant assets like pumps and fans.

• Space-Saving Design: The compact module mounts easily on 35mm DIN rails. This allows engineers to pack high-density vibration monitoring into small field junction boxes located near the machine train.

• Diagnostic Accessibility: The unit features a buffered "Prox Out" terminal. Maintenance personnel can connect a portable vibration analyzer to view the raw waveform (orbit/time-base) without interrupting the 4-20 mA protection loop.

• High Signal Integrity: Advanced internal circuitry rejects electromagnetic interference (EMI). This prevents "false trips" often caused by the electrical noise generated by nearby high-power Variable Frequency Drives (VFDs).

FAQs

Must I use a specific cable length with this transmitter?

Yes. The 990-05-XX-01-00 suffix specifies a 5.0-meter system length. You must use a probe and extension cable that total exactly 5.0 meters. Using a 7-meter or 9-meter cable will result in incorrect calibration and non-linear output.

What is the difference between this and a standard Proximitor?

A standard Proximitor outputs a negative voltage signal (e.g., -200 mV/mil) that requires a specialized monitor. The 990-05 transmitter converts that signal into a 4-20 mA loop current, making it "readable" by any standard industrial analog input card.

Does this unit support hazardous area installation?

The "01" approval option includes CSA and ATEX certifications. When installed with appropriate intrinsic safety barriers, you can safely monitor machinery located in explosive atmospheres.

How do I know this item is brand new?

We supply only 100% Brand New units in original Bently Nevada factory packaging. Each transmitter includes a unique serial number for traceability and is guaranteed to be an authentic USA-manufactured component.