Bently Nevada 990-10-XX-01-05 Vibration Transmitter | 990 Series

Product Overview

The Bently Nevada 990-10-XX-01-05 provides continuous radial vibration monitoring for industrial rotating machinery. This transmitter drives a 3300 XL 8mm proximity probe and converts the complex displacement signal into a linearized 4 to 20 mA DC output. This "rackless" solution allows you to integrate high-fidelity vibration data directly into your PLC or DCS. We deliver this unit as 100% Brand New and Original in factory-sealed packaging, backed by a full 12-month factory warranty.

Part Number Breakdown

The 990 series configuration determines the measurement scale, system length, and regional safety compliance:

Technical Specifications

The 990-10-XX-01-05 ensures precision monitoring in high-interference environments:

• Output Signal: 4 to 20 mA DC (Proportional to peak-to-peak vibration)

• Measurement Range: 0 to 254 µm (0 to 10 mils)

• Operating Temperature: -35°C to +85°C (-31°F to +185°F)

• Input Compatibility: Specifically for 3300 XL 8 mm Proximity Probes

• Supply Voltage: +17.5 to +30 Vdc

• Hazardous Area Rating: Certified for North American Division 2 locations (Option 05)

• Weight: 0.46 kg (1.01 lbs)

Engineering Advantages

• Cost-Effective Protection: This transmitter eliminates the need for expensive, centralized monitor racks. It provides a direct 4-20 mA loop to your control system, making it the ideal choice for auxiliary equipment like fans, pumps, and small motors.

• Streamlined Troubleshooting: Every unit features a BNC connector providing a raw buffered signal. Technicians can connect a portable data collector to view the actual vibration waveform without interrupting the 4-20 mA protection loop.

• High-Density Installation: The 01 mounting option includes pre-installed 35 mm DIN-rail clips. Its compact 6 cm width allows you to mount dozens of channels in a single local junction box, saving significant cabinet space.

• Division 2 Certified: The "05" approval allows for safe installation in Class I, Division 2 hazardous environments. This ensures compliance with North American safety standards for oil, gas, and chemical processing plants.

FAQs

• What is the difference between the 990 and 991 models?

  The 990 series monitors Radial Vibration (shaft movement side-to-side), while the 991 series monitors Thrust Position (shaft movement axial/end-to-end). Ensure you select the correct model for your specific protection logic.

• Can I mix system lengths (e.g., use a 5.0m transmitter with a 9.0m cable)?

  No. The "XX" in your part number must match your total electrical system length (probe plus extension cable). Mismatched lengths will lead to significant calibration errors and unreliable 4-20 mA data.

• Does this unit require a separate Proximitor?

  No. The 990-10-XX-01-05 combines the probe driver and the 4-20 mA transmitter into one housing. It replaces the traditional Proximitor entirely.

• Is the product original Bently Nevada?

  Yes. We supply only Brand New, original factory-packed hardware. The unit includes the original serial number and is eligible for full manufacturer support and our 12-month warranty.