Bently Nevada 990-05-XX-01-00 MOD:167577-07 — Dual-Channel Vibration Transmitter | 3300 Series Platform
Engineering Background: The Bently Nevada 990 Series Vibration Transmitter is a field-proven signal conditioning module engineered for continuous machinery protection in rotating equipment applications. Designed to interface directly with Bently Nevada 3300 Series proximity probes and accelerometers, this transmitter converts raw vibration signals into industry-standard 4–20 mA outputs compatible with DCS, PLC, and SCADA systems.
Product Positioning: The 990-05-XX-01-00 with MOD:167577-07 is a dual-channel variant optimized for high-reliability environments including turbines, compressors, pumps, and motors. It is a critical component in API 670-compliant machinery protection systems and is widely deployed in oil & gas, power generation, and petrochemical industries worldwide.
Complete Technical Specifications
- Part Number: 990-05-XX-01-00
- Modification Code: MOD:167577-07
- Series / Platform: Bently Nevada 3300 / 990 Series
- Module Type: Dual-Channel Vibration Transmitter
- Output Signal: 4–20 mA (isolated, loop-powered)
- Input Compatibility: Bently Nevada 3300 XL 8mm / 11mm proximity probes; compatible accelerometers
- Measurement Range: 0–25 mils pk-pk (radial vibration); configurable per channel
- Frequency Response: 2 Hz – 10 kHz (±3 dB)
- Power Supply: 18–30 VDC (24 VDC nominal)
- Operating Temperature: -40°C to +70°C
- Enclosure / Form Factor: DIN-rail mountable module
- Weight: 460 g
- Compliance: API 670, CE, RoHS
- Country of Origin: United States
Proven Application Environments
- Gas turbines and steam turbines (shaft radial vibration monitoring)
- Centrifugal and reciprocating compressors
- High-speed pumps and motor-driven equipment
- Refinery and petrochemical rotating machinery trains
- Power plant auxiliary equipment protection systems
- Offshore platform critical machinery monitoring
Engineering Advantages
- API 670 Compliance: Meets international standard for machinery protection systems, ensuring regulatory acceptance in critical installations.
- Dual-Channel Architecture: Simultaneous monitoring of two measurement points reduces module count and wiring complexity.
- Universal 4–20 mA Output: Seamlessly integrates with any DCS, PLC, or safety instrumented system (SIS) without signal converters.
- Wide Temperature Range: Rated for -40°C to +70°C, suitable for outdoor and harsh industrial environments.
- Isolated Output: Galvanic isolation prevents ground loops and protects upstream control systems.
- Plug-and-Play with 3300 Series: Direct compatibility with existing Bently Nevada probe infrastructure minimizes retrofit engineering effort.
System Architecture & Signal Flow
The 990-05-XX-01-00 sits between the proximity probe (or accelerometer) and the plant DCS/PLC. Signal flow: Rotating Shaft → Proximity Probe (3300 XL) → 990 Transmitter (signal conditioning + conversion) → 4–20 mA loop → DCS/PLC/SIS input card → Alarm/Trip Logic. The MOD:167577-07 modification code indicates a factory-configured variant with specific channel scaling and output clamping parameters validated for the target application. Always verify the MOD code matches your system’s calibration records before installation.
Sourcing & Quality Verification
- All units sourced from authorized distributors or verified OEM surplus channels.
- Each module undergoes functional bench testing prior to shipment: output linearity, channel isolation, and power consumption verified.
- Serial number and MOD code cross-referenced against Bently Nevada factory records where available.
- Packaging inspected for evidence of counterfeit markings, re-labeling, or tampering.
- Certificate of conformance (CoC) available upon request for critical installations.
Procurement Process
- Step 1: Confirm part number (990-05-XX-01-00) and MOD code (167577-07) match your system documentation.
- Step 2: Submit RFQ or place order directly via Konmask.com product page.
- Step 3: Receive order confirmation with lead time and shipping details within 1 business day.
- Step 4: Unit ships with test report and packing list; tracking provided upon dispatch.
- Step 5: Contact support for installation guidance, calibration data, or system integration questions.
Technical FAQ
Q: Is the MOD:167577-07 interchangeable with other 990-05 MOD codes?
A: MOD codes indicate factory-specific configuration differences (scaling, clamping, connector type). Substitution requires engineering review — contact us with your system’s probe gap voltage and full-scale range for compatibility assessment.
Q: Can this transmitter work with non-Bently Nevada probes?
A: The 990 Series is optimized for Bently Nevada 3300 XL probes. Third-party probes with matching sensitivity (nominally -7.87 V/mm or -200 mV/mil) may be compatible but require field verification.
Q: What is the warranty on this unit?
A: Konmask provides a 90-day functional warranty on all tested surplus modules. New/unused OEM units carry the original Bently Nevada warranty terms.
Q: Do you provide calibration certificates?
A: Functional test reports are standard. NIST-traceable calibration certificates are available as an add-on service — please specify at time of order.
Q: What is the lead time for this part?
A: In-stock units ship within 1–3 business days. Out-of-stock items are sourced within 2–4 weeks depending on market availability.
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