Description
Product Introduction
This is a loop-powered two-wire eddy current vibration transmitter under Bently Nevada 990 series, matched with 3300 NSv proximity probes for shaft radial vibration & shaft displacement monitoring on rotating equipment. It integrates the proximitor circuit inside the housing, converts original gap/vibration voltage signals into standard 4–20mA analog output for DCS/PLC system monitoring and machine protection logic. The MOD 167577-05 is the factory revised part number corresponding to the base model 990-04-XX-02-05, with fixed internal calibration and circuit version. Widely applied on centrifugal compressors, blowers, pumps, fans and small steam turbines in petrochemical, power and metallurgy industries.
Core Technical Parameters
| Item | Specific Parameter |
|---|---|
| Model Number | 990-04-XX-02-05, Revised MOD Code: 167577-05 |
| Power Supply | 12 ~ 35 VDC two-wire loop power supply |
| Output Signal | 4–20mA current output (matches full-scale peak-to-peak vibration value) |
| Compatible Sensor | Bently 3300 NSv proximity probe + matched extension coaxial cable |
| Standard Sensitivity | 7.87 mV/μm (200 mV/mil) |
| Operating Temperature | -40 ℃ ~ +85 ℃; Storage Temperature: -52 ℃ ~ +177 ℃ |
| Diagnostic Port | Prox Out coaxial interface for dynamic waveform observation and gap voltage troubleshooting |
| Built-in Protection | Sensor fault detection, surge & EMI suppression, fully potted waterproof structure |
| Mounting Method | DIN rail mounting + fixed screw mounting |
| Certification | CE certified, compliant with IEC60255 industrial standard |
Core Competitive Advantages
- Integrated proximitor design reduces on-site component quantity, minimizes wiring fault points and cuts overall construction and long-term maintenance costs.
- Separated zero and span adjustment design enables independent field calibration without parameter coupling, facilitating regular metrology calibration works for maintenance teams.
- Embedded signal defeat logic suppresses abnormal current surges triggered by probe open circuits, short circuits and poor terminal contact, effectively preventing unnecessary unit trip events.
- Hermetically potted internal structure delivers outstanding environmental adaptability for high-humidity, dusty and temperature-fluctuated industrial field conditions.
Matching Components & Target Application Equipment
Supporting spare parts: 3300 series proximity probes, matched extension cables, probe fixed mounting hardwareApplicable rotary equipment: Centrifugal compressors, ID fans, FD fans, boiler feed pumps, circulating water pumps, small steam turbine generator assemblies
Commercial Supply Terms & After-Sales Support
- Compatibility verification: Our professional vibration hardware engineers confirm probe parameters and cabinet installation dimensions to guarantee plug-and-play replacement.
- Volume-based pricing: Tiered unit prices for bulk orders; real-time stock status and international freight costs are updated synchronously.
- Complete export paperwork: We provide commercial invoices, packing lists and relevant certification documents to guarantee smooth customs clearance for global overseas buyers.
- Strict pre-delivery inspection: Every unit is subjected to temperature cycle aging tests, full-scale output linearity calibration and backplane communication handshake validation before shipment release.
- Anti-impact export packaging: ESD vacuum sealed bag + high-density customized shock foam + heavy-duty reinforced carton to safeguard internal PCB and electronic components during cross-border long-distance logistics.
- Warranty clause: 12-month quality warranty against inherent hardware defects under rated operating conditions. We supply official datasheets and step-by-step replacement guidelines via email, along with permanent free remote technical debugging support.
FAQ
- Will replacing this transmitter overwrite the existing vibration alarm settings in the system?4–20mA alarm thresholds are configured on the upper DCS/PLC platform. Replacing the 990 transmitter will not modify any system configuration data; users only need to complete a power-on self-test after installation.
- What does MOD 167577-05 mean?MOD number is Baker Hughes internal revised drawing code, representing upgraded PCB version and factory fixed calibration data of the base model 990-04-XX-02-05.
- How fast can in-stock items be delivered?Products are stored in our domestic warehouse, all delivery procedures can be finished within 3 working days once payment is confirmed.
- WhatsApp: +86 13313703791
- Email: seren@ymgkplc.com
- Phone: +86 13313703791
- Wechat: +86 13313703791
- Website: www.xiongbaparts.com


+86 13313703791
+86 13313703791
seren@ymgkplc.com


