Bently Nevada 990-05-70-02-00

Overview

Bently Nevada 990-05-70-02-00 2-Wire Vibration Transmitter

The Bently Nevada 990-05-70-02-00 is part of the legendary 990 series 2-Wire Vibration Transmitters — rugged, loop-powered vibration monitoring devices engineered for continuous online vibration measurement of rotating equipment. It is designed to work seamlessly with Bently Nevada 3300 NSv non-contacting proximity probes and compatible extension cables, delivering a 4–20 mA proportional output that feeds directly into industrial control and protection systems. 

This transmitter is widely used in industries such as power generation, petrochemical, oil & gas, manufacturing, and heavy industrial automation to monitor vibration trends, trigger alarms, and protect machinery like motors, pumps, compressors and fans.

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Key Features

• Part Number / Model: 990-05-70-02-00 2-Wire Vibration Transmitter 

• Brand: Bently Nevada 

• Product Type: 2-Wire Vibration Transmitter 

• Full-Scale Option: 05 = 0-5 mils pp (0-125 µm pp) vibration range 

• System Length: 70 = 7.0 metres (23 ft) sensor cable 

• Mounting Option: 02 = bulkhead screws 

• Output: 4–20 mA proportional signal compatible with PLC/DCS/SCADA systems 

• Power Supply: Loop-powered device requiring +12 Vdc to +35 Vdc 

• Operating Temperature: Typically -35 °C to +85 °C 

• Construction: Rugged industrial design suitable for harsh environments 

• Warranty: Typically 12 months factory warranty 

How It Works

The transmitter measures vibration using a 3300 NSv proximity probe and conditions the raw dynamic vibration signal into an industry-standard 4–20 mA analog output. Because it’s a two-wire loop-powered device, power and signal are transmitted over the same wiring pair, simplifying installation and reducing wiring complexity. 

The 4–20 mA output is then used for real-time vibration trending, machinery protection logic, preventive maintenance algorithms, alarms and control system integration across PLC, DCS and SCADA platforms.

Industrial Applications

The Bently Nevada 990-05-70-02-00 vibration transmitter is widely used in:

• Machinery protection systems for rotating equipment

• Vibration trend monitoring for predictive maintenance

• PLC, DCS and SCADA integration

• Industrial manufacturing, energy, oil & gas, petrochemical plants

• Large motor, pump and compressor installations 

These applications benefit from accurate vibration feedback that prevents mechanical failures and reduces unplanned downtime.

FAQ

What is a 2-Wire Vibration Transmitter?

A 2-Wire Vibration Transmitter powers itself and transmits its analog signal over the same two wires, delivering a 4–20 mA proportional output for vibration level measurement. 

Which proximity probes are compatible?

This transmitter is typically used with Bently Nevada 3300 NSv proximity probes for non-contacting vibration measurement. 

Can it integrate with PLC systems?

Yes — the 4–20 mA output is natively compatible with most PLC, DCS and SCADA systems for automated monitoring and alarm functions. 

Is it suitable for harsh environments?

Yes — the transmitter is engineered for industrial environments with robust construction and a wide operating temperature range. 

Call to Action

For genuine Bently Nevada 990-05-70-02-00 2-Wire Vibration Transmitter and expert guidance on integration with your condition monitoring system, contact Seven Star LLC for pricing, technical support and delivery.