The Bently Nevada 990-04-90-01-05 990 Vibration Transmitter is a compact, high-reliability device designed to monitor vibration in rotating machinery. It converts signals from 3300 XL Proximity Probes into a standard 4–20 mA output, enabling integration with DCS, PLC, or SCADA systems for condition monitoring and machinery protection.

Key Features

• Compatible with Bently Nevada 3300 XL Proximity Probes

• Provides 4–20 mA output proportional to vibration amplitude

• Monitors radial vibration, shaft position, and thrust position

• Compact, durable housing for harsh industrial conditions

• DIN-rail or panel mounting options

• Meets API 670 machinery protection standards

• Simple installation and easy integration with existing systems

Technical Specifications

Industry Applications

• Power generation: turbines, compressors, pumps

• Oil & gas machinery protection

• Petrochemical process machinery monitoring

• Manufacturing equipment vibration monitoring

• Marine & offshore rotating machinery

• Condition-based maintenance programs

• Industrial automation systems

Advantages

• Reliable vibration and shaft position measurement

• Compact, cost-effective solution for machinery protection

• Meets API 670 compliance standards

• Compatible with existing 3300 XL Proximity Probes

• Reduces downtime and maintenance costs

Frequently Asked Questions (FAQ)

Q1: What is the primary function of this transmitter?

It measures machinery vibration and outputs a 4–20 mA signal for monitoring and protection.

Q2: Which probes are compatible?

Bently Nevada 3300 XL Proximity Probes.

Q3: Does it comply with API 670 standards?

Yes, it meets API 670 machinery protection requirements.

Q4: Can it be connected to a DCS or PLC?

Yes, the 4–20 mA output allows direct integration.

Q5: What measurements can it perform?

Radial vibration, shaft position, and thrust position.

Q6: What is the operating temperature range?

-35 °C to +85 °C.

Q7: How is it mounted?

DIN-rail or panel-mounted.

Q8: Is it suitable for harsh environments?

Yes, it is designed for industrial conditions and some models meet CSA/ATEX standards.

Q9: What is the weight of the transmitter?

Approximately 0.43 kg .

Q10: Why choose this transmitter over a rack-based system?

It offers a compact, cost-effective solution while providing reliable vibration monitoring.