Bently Nevada 990 Vibration Transmitter

The Bently Nevada 990 Vibration Transmitter is designed for original equipment manufacturers of centrifugal air compressors, small pumps, motors, and fans that require a simple and reliable 4 to 20 mA vibration signal for machinery control systems. It provides accurate vibration monitoring and easily integrates into existing control and protection systems.

This 2-wire, loop-powered transmitter works with Bently Nevada 3300 NSv proximity probes and matching 5 m or 7 m extension cables. It conditions the input signal into peak-to-peak vibration amplitude values and delivers a proportional 4 to 20 mA industry-standard output, enabling effective machinery protection, alarm management, and control system integration.

QInstrument is a leading supplier of Bently Nevada 990 Vibration Transmitter in UK and Ireland (EU), offering competitive prices and fast worldwide shipping across Turkey, Saudi Arabia, Oman, Nigeria, Indonesia, Malaysia, Vietnam, Mexico, Brazil, Argentina, and Colombia. Buy Bently Nevada Vibration Monitor from one of the UK’s leading suppliers of industrial automation and instrumentation equipment.

Features of Bently Nevada 990 Vibration Transmitter

• Integrated Proximitor Sensor with no external unit required
• PROX OUT and COM terminals with coaxial connector for vibration and gap voltage diagnostics
• Non-interacting zero and span adjustments for easy loop calibration
• Test Input pin for quick loop signal verification
• Power-up Inhibit circuit prevents startup signal errors
• Not OK/Signal Defeat circuit avoids false alarms from probe faults
• DIN-rail or bulkhead mounting options for easy installation
• Fully potted design for high humidity environments up to 100 percent condensing
• Compatible with 3300 NSv proximity probes for tight installation spaces

Technical Specifications of Bently Nevada 990 Vibration Transmitter

• Input: 1 × 3300 NSv proximity probe + extension cable
• Output: 4–20 mA loop‑powered vibration signal
• Power supply: +12 Vdc to +35 Vdc
• Frequency response: 5 Hz–6 kHz
• Probe gap range: 0.5–1.75 mm (20–55 mils)
• Loop resistance: Max 1 000 Ω at 35 Vdc
• Zero & span: External adjustments
• NOT OK / fault output: <3.6 mA
• Prox Out: Non‑isolated dynamic signal
• Minimum target: ~9.5 mm diameter
• Operating temp: –35 °C to +85 °C
• Storage temp: –52 °C to +100 °C
• Lead length: Max 3 m (10 ft)
• Mounting: DIN‑rail or bulkhead
• Construction: Potted, high humidity tolerant

Vibration Monitor Part Number & Configuration Guide

Standard (Example) Part Number

990-04-50-01-00

This is a reference configuration for the Bently Nevada 990 Vibration Transmitter. It represents one commonly supplied setup and helps customers understand how the part number is structured.

Configurable Part Number Format

990-XX-XX-XX-XX

Each X / XX in the part number indicates a selectable option that can be customized based on your application requirements such as Full-scale Option, System Length, Mounting & Approvals.

✅ Important: Final part number depends on the exact configuration needed for your machinery, environment, and monitoring system.

Applications

The Bently Nevada 990 Vibration Transmitter is commonly used in monitoring industrial rotating equipment, including:

• Centrifugal air compressors
• Small pumps, motors, and fans
• OEM machinery control systems
• Skid-mounted equipment packages
• Applications requiring a simple 4 to 20 mA vibration signal output

Downloadable

Bently Nevada 990 Vibration Transmitter Product Specifications

Why Choose QInstrument?

At QInstrument, we’re more than just an industrial instrument supplier, we’re your trusted partner for industrial automation, instrumentation, control systems, and test & measurement solutions.

Here’s why companies across the United Kingdom (UK) and Ireland (EU) choose us for industrial products and technical support:

• Test & Measurement Instruments You Can Trust: We supply high-quality test and measurement instruments from leading global brands, including industrial sensors, multimeters, oscilloscopes, accelerometers, proximity probes, calibrators, and advanced diagnostic tools for condition monitoring, maintenance, and industrial applications.
• Industrial Automation & Control Solutions: Our product portfolio includes PLC systems, SCADA solutions, transmitters, analyzers, process control instruments, vibration monitoring systems, and industrial networking solutions designed to improve operational efficiency, accuracy, and reliability.
• Fast, Reliable Worldwide Delivery: We proudly support customers across Turkey, Saudi Arabia, Oman, Nigeria, Indonesia, Malaysia, Vietnam, Mexico, Brazil, Argentina, and Colombia with reliable products, technical expertise, responsive customer service, and efficient global delivery solutions.

We Ship Worldwide

At QInstrument, we supply industrial automation, test and measurement instruments, control systems, and sensors across the United Kingdom (UK) and Ireland (EU), offering fast and reliable worldwide delivery. Through strong global logistics partnerships, we ensure efficient shipping and professional support for customers across Europe, South America, Africa, Southeast Asia, and the Middle East.

🡆 Europe (United Kingdom, Turkey)
🡆 South America (Brazil, Argentina, Colombia)
🡆 Africa (Nigeria)
🡆 Southeast Asia (Indonesia, Malaysia, Vietnam)
🡆 Middle East (Saudi Arabia, Oman)