Bently Nevada 990-05-70-01-00 – 2-Wire Vibration Transmitter | 3300 Series Platform
Engineering Background
The Bently Nevada 990 Series Vibration Transmitter is engineered for continuous, real-time machinery health monitoring in critical rotating equipment applications. Developed by Baker Hughes (Bently Nevada), the 990 Series integrates seamlessly with the industry-standard 3300 Series monitoring platform, delivering reliable vibration signal conditioning in demanding industrial environments.
Product Positioning
The 990-05-70-01-00 is a 2-wire, loop-powered vibration transmitter designed for OEM and retrofit installations where simplified wiring, intrinsic safety compatibility, and long-term signal integrity are paramount. It is the preferred choice for procurement engineers specifying condition monitoring upgrades on turbines, compressors, pumps, and motors.
Complete Technical Specifications
- Part Number: 990-05-70-01-00
- Series / Platform: Bently Nevada 3300 Series
- Type: 2-Wire Loop-Powered Vibration Transmitter
- Output Signal: 4–20 mA (loop-powered)
- Measurement: Radial vibration (displacement / velocity)
- Supply Voltage: 18–30 VDC
- Operating Temperature: –40°C to +85°C
- Enclosure Rating: IP66 / NEMA 4X
- Weight: Approx. 1,100 g
- Certifications: CE, CSA, ATEX (consult datasheet for full listing)
- Manufacturer: Bently Nevada (Baker Hughes)
- Country of Origin: USA
Proven Application Environments
- Steam and gas turbines in power generation plants
- Centrifugal and reciprocating compressors in oil & gas facilities
- High-speed pumps and motors in petrochemical processing
- Rotating machinery in pulp, paper, and mining industries
- Marine propulsion and offshore platform equipment
Engineering Advantages
- 2-Wire Simplicity: Loop-powered design eliminates separate power wiring, reducing installation cost and complexity.
- Direct 3300 Series Compatibility: Plug-and-play integration with existing Bently Nevada monitoring racks — no signal conditioning adapters required.
- Wide Temperature Range: Rated for –40°C to +85°C, suitable for both arctic and high-heat process environments.
- Robust IP66 Sealing: Withstands washdowns, humidity, and particulate ingress in harsh plant environments.
- Long-Term Signal Stability: Precision-calibrated output maintains accuracy over extended service intervals, reducing maintenance overhead.
System Architecture & Signal Flow
The 990-05-70-01-00 connects directly to a proximity probe or accelerometer input and conditions the raw vibration signal into a standardized 4–20 mA loop output. This signal feeds into the Bently Nevada 3300 Series monitor rack, where it is processed for alarm, trip, and trending functions. The 2-wire architecture allows the transmitter to be powered entirely from the monitoring loop, simplifying field wiring and enabling installation in intrinsically safe (IS) zones when paired with appropriate barriers.
Sourcing & Quality Verification
- All units sourced through verified OEM-authorized distribution channels
- Each unit inspected against Bently Nevada factory specifications prior to shipment
- Original manufacturer documentation and certificates of conformance available upon request
- Traceability records maintained for quality audit compliance
- No refurbished or counterfeit stock — genuine parts only
Procurement Process
- Submit your RFQ or purchase order via support@konmask.com or place order directly on this page.
- Receive order confirmation with lead time and shipping details within 1 business day.
- Units dispatched with full documentation package (datasheet, CoC, packing list).
- Post-delivery technical support available from our engineering team.
Technical FAQ
Q: Is the 990-05-70-01-00 compatible with the Bently Nevada 3500 Series rack?
A: The 990 Series is optimized for the 3300 Series platform. Compatibility with 3500 Series requires verification against your specific rack configuration — contact our team for application review.
Q: Can this transmitter be used in ATEX Zone 1 hazardous areas?
A: Yes, when installed with appropriate certified Zener barriers or galvanic isolators per the applicable ATEX/IECEx installation requirements. Consult the official Bently Nevada installation drawing for details.
Q: What is the typical lead time?
A: Standard stock items ship within 3–7 business days. For urgent requirements, contact us for expedited options.
Q: Do you provide a warranty?
A: Yes. All units carry a 12-month warranty against manufacturing defects. Extended warranty options are available upon request.
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