Precision Axial Position Monitoring Solution for Rotating Machinery
The Bently Nevada 991-06-50-01-01 Thrust Transmitter is a compact and reliable axial displacement monitoring transmitter designed for continuous thrust position measurement in industrial rotating equipment. Developed for applications such as centrifugal compressors, pumps, motors, and fans, this transmitter converts signals from a Bently Nevada 3300 NSv proximity probe into a standard 4–20 mA proportional output, allowing direct connection to PLC, DCS, SCADA, and machinery protection systems.
Featuring an integrated Proximitor® sensor, the 991-06-50-01-01 eliminates the requirement for a separate signal conditioning module. Its compact DIN-rail mounting design helps reduce panel space requirements while providing stable and accurate shaft thrust monitoring for OEM machinery and industrial maintenance applications.
The 991-06-50-01-01 configuration includes a 0.6 mm full-scale measurement range, 5.0 m system length, 35 mm DIN-rail mounting clips, and CSA Division 2 approval option, making it suitable for demanding industrial environments where dependable thrust protection is required.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 991-06-50-01-01 |
| Product Type | 991 Thrust Transmitter |
| Measurement Function | Shaft axial displacement / thrust position |
| Full-Scale Measurement Range | 0.6 mm (0.6-0-0.6 mm) |
| System Length | 5.0 m (16.4 ft) |
| Input Sensor | Bently Nevada 3300 NSv Proximity Probe |
| Output Signal | 4–20 mA proportional analog output |
| Power Supply | 12–35 VDC |
| Loop Type | Two-wire loop powered |
| Maximum Loop Resistance | 1,000 Ω at 35 VDC |
| Mounting Method | 35 mm DIN-rail clips |
| Signal Conditioning | Integrated Proximitor® sensor |
| Diagnostic Output | PROX OUT and COM |
| Approval Option | CSA Division 2 |
| Operating Temperature | -35°C to +85°C |
| Storage Temperature | -52°C to +177°C |
| Transmitter Weight | Approx. 0.43 kg |
| Total System Weight | Approx. 0.82 kg |
| Dimensions | Approx. 73 × 50 × 100 mm |
Industrial Applications
The 991-06-50-01-01 Thrust Transmitter is designed for machinery where accurate shaft axial position monitoring is critical to operational safety and equipment reliability.
| Industry | Typical Equipment |
|---|
| Oil & Gas | Centrifugal compressors, process pumps |
| Petrochemical | Rotating process equipment |
| Power Generation | Turbine auxiliary systems |
| Manufacturing | Industrial motors and fans |
| Water Treatment | Large pumping equipment |
| OEM Machinery | Compressor and pump packages |
Typical applications include:
-
Continuous thrust position monitoring
-
Thrust bearing protection
-
Machinery condition monitoring
-
Equipment alarm and shutdown systems
-
Predictive maintenance programs
-
Industrial automation feedback
Product Advantages
Integrated Proximitor® Technology
The built-in Proximitor® electronics provide direct signal conditioning inside the transmitter, eliminating external modules and reducing installation complexity. This design improves system reliability while saving valuable control cabinet space.
Accurate 0.6 mm Thrust Measurement Range
The 06 option provides a 0.6 mm full-scale measurement configuration, making this model suitable for applications requiring precise monitoring of small axial shaft movements.
Optimized 5 Meter System Configuration
The 50 option identifies the 5.0 m probe and extension cable system length, providing installation flexibility for compact machinery layouts and OEM equipment packages.
Reliable 4–20 mA Industrial Output
The standard analog output enables easy connection with modern automation systems, including PLC, DCS, and SCADA platforms, without additional signal conversion hardware.
Compact DIN-Rail Installation
The integrated 35 mm DIN-rail mounting clips allow quick installation inside industrial control panels, simplifying commissioning and future maintenance work.
Designed for Continuous Machinery Protection
The 991 Series is optimized for OEM and industrial rotating equipment applications, providing stable thrust position feedback for machinery protection logic and operational monitoring.
Technical FAQs
1. What is the Bently Nevada 991-06-50-01-01 used for?
It is used for measuring shaft axial displacement and providing a proportional 4–20 mA signal for thrust monitoring and machinery protection applications.
2. What measurement range does this model provide?
The model provides a 0.6 mm full-scale thrust measurement range.
3. Which proximity probe is compatible with this transmitter?
The transmitter is designed to operate with the Bently Nevada 3300 NSv proximity probe and matching extension cable system.
4. What does the "50" option represent?
The 50 option indicates a 5.0 meter system length configuration.
5. What does the "01" mounting option indicate?
The 01 option specifies 35 mm DIN-rail mounting clips for panel installation.
6. Does the transmitter require an external Proximitor module?
No. The Proximitor® sensor electronics are integrated into the transmitter assembly.
7. What output signal does the unit provide?
The transmitter provides a standard 4–20 mA proportional output compatible with industrial control systems.
8. What power supply is required?
The unit requires a 12–35 VDC loop-powered supply at the transmitter terminals.
9. Are diagnostic signals available?
Yes. The transmitter provides PROX OUT and COM connections for diagnostic testing and commissioning.
10. What equipment commonly uses this transmitter?
It is commonly installed on centrifugal compressors, small pumps, motors, fans, and other rotating machinery requiring continuous thrust position monitoring.
A DCS Q Co., Ltd. - PLC and DCS Industrial Control Equipment Wholesale
