Turbine & Rotating Machinery Condition Monitoring Solution – Bently Nevada 990-04-XX-01-CN | 3500 Series
Where This Product Is Used
The Bently Nevada 990-04-XX-01-CN MOD:165335-01 Vibration Transmitter is purpose-built for continuous, real-time vibration monitoring in high-stakes rotating machinery environments. Typical deployment sites include:
- Steam & Gas Turbines – Power generation plants requiring 24/7 shaft vibration surveillance
- Centrifugal Compressors – Petrochemical and LNG facilities monitoring radial bearing vibration
- Pumps & Fans – Critical process pumps in refineries and chemical plants
- Gearboxes – High-speed gearbox health monitoring in paper mills and steel plants
- Marine Propulsion Systems – Shipboard machinery protection systems
This transmitter converts raw proximity probe signals into industry-standard 4–20 mA outputs, enabling seamless integration with DCS, PLC, and SCADA platforms without additional signal conditioning hardware.
Technical Specifications
- Part Number: 990-04-XX-01-CN
- Module Number: MOD:165335-01
- Series: Bently Nevada 3500 / 990 Series
- Function: Vibration Transmitter (Proximitor® Signal Conditioner)
- Output Signal: 4–20 mA (industry-standard analog)
- Input: Compatible with 3300 XL 8mm & 11mm proximity probe systems
- Supply Voltage: 18–30 VDC
- Measurement Range: 0–25 mils pp (0–635 µm pp) radial vibration
- Frequency Response: 0–10,000 Hz
- Operating Temperature: -40°C to +85°C
- Enclosure Rating: IP66
- Weight: 460 g
- Certifications: CE, CSA, ATEX (refer to nameplate)
- Country of Origin: USA (Baker Hughes / Bently Nevada)
Why Engineers Specify This Model
- Drop-in Compatibility: Direct replacement for legacy 990 series transmitters — no rewiring or recalibration of existing probe cables required.
- High Noise Immunity: Differential input design rejects common-mode electrical noise prevalent in industrial environments.
- Wide Temperature Range: Operates reliably from arctic offshore platforms to tropical petrochemical sites.
- DCS/PLC Ready: 4–20 mA output interfaces directly with Honeywell, Emerson DeltaV, Siemens PCS 7, ABB 800xA, and Yokogawa CENTUM without additional I/O modules.
- Proven Reliability: Part of the globally trusted Bently Nevada 3500 machinery protection ecosystem used in over 10,000 installations worldwide.
Complete System Bill of Materials
For a complete vibration monitoring loop using this transmitter, engineers typically specify:
- Proximity Probe: Bently Nevada 330101-XX-XX (3300 XL 8mm)
- Extension Cable: Bently Nevada 330130-XX-XX
- Transmitter: Bently Nevada 990-04-XX-01-CN MOD:165335-01 ← (This Item)
- Power Supply: 24 VDC DIN-rail PSU (e.g., Phoenix Contact QUINT series)
- DCS/PLC Analog Input Module: 4–20 mA AI card (any major brand)
- Junction Box: IP66-rated stainless steel field enclosure
Compliance & Industry Standards
- API 670 – Machinery Protection Systems (5th Edition)
- IEC 61511 – Functional Safety for Process Industry
- ISO 10816 / ISO 20816 – Mechanical Vibration Evaluation
- ATEX Directive 2014/34/EU – Equipment for explosive atmospheres
- CE Marking – EU electromagnetic compatibility and safety
- CSA – Canadian Standards Association certification
Quality Assurance & Sourcing
Konmask.com sources the 990-04-XX-01-CN MOD:165335-01 exclusively through verified industrial automation distributors and authorized surplus channels. Every unit undergoes:
- Visual inspection for physical damage, corrosion, and label integrity
- Functional power-on verification
- Serial number traceability check against manufacturer records
- Anti-static packaging with humidity indicator card
We provide a 90-day warranty on all stocked units. Certificates of conformance available upon request.
How to Source This Part
- In Stock: Ships within 1–3 business days from our warehouse
- Lead Time (New): 8–16 weeks via OEM channel (Baker Hughes)
- Minimum Order: 1 unit
- Bulk Pricing: Contact us for orders of 5+ units
- Export: Available for international shipment; export compliance documentation provided
- Payment: T/T, L/C, PayPal, credit card accepted
📧 support@konmask.com | 📞 +0086 19859288691
Application-Specific FAQ
Q: Is the 990-04-XX-01-CN compatible with 3300 XL 11mm probes?
A: The -04- designation indicates compatibility with 8mm probe systems. For 11mm probes, specify the 990-05-XX-01-CN variant.
Q: Can this transmitter be used in SIL-rated safety loops?
A: The 990 series transmitter can be incorporated into SIL 1/2 loops when used with a certified safety relay or voting logic solver. Consult your functional safety engineer for SIL verification.
Q: What is the difference between MOD:165335-01 and other MOD numbers?
A: The MOD number denotes the hardware revision. MOD:165335-01 is a current production revision with enhanced EMI shielding. It is backward-compatible with all previous revisions.
Q: Does this unit require Bently Nevada System 1 software for configuration?
A: No. The 990 transmitter is a passive signal conditioner — no software configuration is required. It outputs a standard 4–20 mA signal immediately upon power-up.
Q: Can Konmask provide a calibration certificate?
A: Yes. Factory calibration certificates and test reports are available for an additional fee. Please specify at time of order.
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Contact: support@konmask.com | +0086 19859288691
