Bently Nevada 990-08-XX-01-CN 3300 NSv Proximity Transmitter

Product Overview

The Bently Nevada 990-08-XX-01-CN serves as a high-precision vibration transmitter within the 3300 NSv series. This device interfaces directly with non-contacting proximity probes to monitor radial vibration or axial position on rotating machinery. It converts the complex eddy current signal into a standard 4-20 mA current loop output, allowing operators to integrate critical vibration data directly into a DCS or PLC without requiring a dedicated rack-based monitor. We supply this unit as 100% Brand New and Original to ensure maximum plant safety and sensor longevity.

Part Number Breakdown

The 990-08-XX-01-CN follows a specific configuration logic to match your industrial requirements:

Technical Specifications

This transmitter delivers high-fidelity data even in electrically noisy environments.

• Input Compatibility: Accepts 1 non-contacting 3300 NSv Proximity Probe and extension cable.

• Power Requirements: Requires +12 to +35 Vdc input at the transmitter terminal.

• Measurement Range: 0.5 to 5.0 mils (12.7 to 127 microns).

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

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

• Temperature Stability: Operates reliably from -50°C to 120°C (-58°F to 248°F).

• Current Limiting: 23 mA typical to protect downstream circuits.

Engineering Advantages

The 990-08-XX-01-CN solves specific installation and environmental challenges:

• Compact Integration: The 4-20 mA output eliminates the need for expensive monitoring racks. You can wire the transmitter directly into your existing control system, saving significant cabinet space.

• Extreme Environment Resilience: The robust design withstands temperatures up to 120°C. This allows for installation in close proximity to gas turbines or steam valves where standard electronics often fail.

• Small Shaft Specialists: Unlike standard proximity systems, the NSv (Narrow Side View) technology excels in tight geometries. It minimizes side-view interference and allows for accurate measurement on shafts with diameters smaller than 50 mm (2 inches).

• Simplified Calibration: The 990 series arrives factory-calibrated for the 3300 NSv probe system, reducing commissioning time and eliminating the need for field adjustments.

FAQs

Is this unit compatible with standard 3300 XL 8mm probes?

No. The 990-08-XX-01-CN specifically requires a 3300 NSv Proximity Probe. Using standard 3300 XL probes will result in incorrect scale factors and inaccurate vibration readings due to different coil characteristics.

Does this transmitter provide a buffered output for diagnostics?

Yes. While the primary output is 4-20 mA, the unit includes a dynamic signal output. Technicians can connect portable vibration analyzers (like the Scout or VB series) to the BNC terminal to perform spectrum analysis and detailed fault diagnostics.

What power supply do I need for a multi-transmitter setup?

Each transmitter draws a maximum of approximately 23 mA. For multiple units, ensure your power supply provides between +12 and +35 Vdc with enough total amperage to cover the combined draw of all transmitters on the loop.

Is this a refurbished or surplus item?

We provide only 100% Brand New Bently Nevada hardware. Each unit ships in original packaging with the manufacturer’s certification of compliance, ensuring the full lifespan of the internal capacitors and circuitry.