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- Bently Nevada
- 991-06-50-02-00
- Vibration Transmitter
- USA
- 112 × 38 mm
- 0.45kg
- Xiamen, China
- New & In Stock
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Bently Nevada 991-06-50-02-00
Comprehensive Product Overview, Technical Specifications, Product Applications, Advantages, Series Information, and Recommended Models
Product Overview
The Bently Nevada 991-06-50-02-00 is a compact industrial vibration transmitter designed for continuous condition monitoring of rotating machinery. It is developed for applications where reliable vibration measurement, stable analog signal transmission, and long-term operational reliability are required.
The transmitter belongs to the 991 Series, a family of permanently installed vibration transmitters designed for industrial machinery health monitoring. The device measures overall machine casing vibration and converts the vibration signal into a standardized 4–20 mA analog output, allowing direct integration with industrial automation and control systems.
The 991-06-50-02-00 combines vibration sensing, signal processing, and output conversion electronics into a single compact housing. This integrated design simplifies installation, reduces external hardware requirements, and improves system reliability compared with traditional vibration monitoring solutions that require separate sensing and processing components.
The transmitter is designed for direct installation on rotating equipment such as motors, pumps, compressors, fans, blowers, turbines, gearboxes, and other industrial machinery. Once installed, it continuously monitors vibration levels and provides real-time information about equipment operating conditions.
Continuous vibration monitoring enables maintenance personnel to detect abnormal vibration trends at an early stage. These changes may indicate mechanical issues such as bearing wear, rotor imbalance, shaft misalignment, mechanical looseness, coupling problems, or structural vibration problems.
The device supports predictive maintenance strategies by allowing maintenance teams to evaluate equipment condition based on actual operating data rather than fixed maintenance schedules. This approach helps reduce unexpected equipment failures, improve maintenance efficiency, and extend machinery service life.
The compact mechanical structure and rugged industrial design allow reliable operation in harsh environments where equipment may be exposed to continuous vibration, temperature changes, humidity, dust, oil contamination, and electrical interference.
The 991-06-50-02-00 is suitable for industrial facilities requiring dependable vibration monitoring, improved machinery reliability, and efficient condition-based maintenance.
Brand Information
| Item | Description |
|---|---|
| Brand | Bently Nevada |
| Product Category | Industrial Vibration Transmitter |
| Product Type | Permanent Machinery Condition Monitoring Device |
| Product Series | 991 Series |
| Monitoring Method | Continuous Online Vibration Monitoring |
| Output Signal | 4–20 mA Analog Current Output |
| Installation Method | Direct Machine Mounting |
| Measurement Target | Machine Housing Vibration |
| Application Purpose | Predictive Maintenance and Machinery Monitoring |
Product Series
The 991 Series is a compact industrial vibration transmitter family designed for continuous monitoring of rotating equipment.
The series provides a simple and effective solution for machinery condition monitoring by combining vibration sensing, electronic processing, and analog signal transmission into one integrated device.
The main purpose of the 991 Series is to provide continuous vibration information from industrial machinery, allowing operators and maintenance engineers to identify changes in equipment condition before serious failures occur.
The integrated design reduces system complexity because external signal-conditioning equipment is not required. This helps simplify installation, reduce wiring requirements, and improve overall system reliability.
The main characteristics of the 991 Series include:
- Continuous online vibration measurement
- Compact industrial housing
- Integrated signal conditioning
- Standard 4–20 mA analog output
- High resistance to industrial interference
- Stable long-term measurement performance
- Low maintenance requirements
- Direct compatibility with automation systems
- Suitable for harsh industrial environments
Typical monitored equipment includes:
- Centrifugal pumps
- Electric motors
- Compressors
- Industrial fans
- Blowers
- Gearboxes
- Turbines
- Cooling tower drives
- Process machinery
- Auxiliary rotating equipment
The series is widely used in industries where machine availability and production reliability are critical.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 991-06-50-02-00 |
| Product Type | Industrial Vibration Transmitter |
| Product Series | 991 Series |
| Measurement Principle | Velocity-Based Housing Vibration Measurement |
| Monitoring Mode | Continuous Online Monitoring |
| Output Signal | 4–20 mA Analog Current |
| Power Supply | 24 VDC Typical |
| Measurement Direction | Radial |
| Frequency Response | Approximately 10 Hz to 1000 Hz |
| Measurement Range | Industrial Rotating Machinery Vibration Monitoring |
| Accuracy | ±2% Full Scale (Typical) |
| Signal Conditioning | Integrated Electronic Processing |
| Response Time | Fast Dynamic Response |
| Output Characteristics | Linear Current Output |
| Mounting Method | Stud Mount Installation |
| Electrical Connection | Industrial Connector |
| Housing Material | Stainless Steel |
| Protection Rating | IP65 (Typical) |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -55°C to +100°C |
| Electromagnetic Compatibility | Industrial EMC Protection |
| Signal Stability | High Long-Term Stability |
| Maintenance Requirement | Low Maintenance |
| Service Life | Continuous Industrial Operation |
| Dimensions | Approximately 112 × 38 mm |
| Weight (kg) | Approximately 0.45 kg |
Product Features
The 991-06-50-02-00 is designed for permanent installation on industrial rotating machinery and provides continuous vibration information during normal equipment operation.
The transmitter integrates vibration measurement and signal conversion functions into a single compact unit. This reduces installation complexity and eliminates the need for additional external signal-processing devices.
The standard 4–20 mA analog output allows easy connection with industrial automation systems. The transmitted vibration signal can be used for monitoring, alarm generation, trend analysis, and maintenance decision-making.
The transmitter uses a rugged industrial enclosure designed for reliable operation in demanding environments. The housing provides protection against:
- Mechanical vibration
- Dust
- Humidity
- Oil contamination
- Temperature variation
- Industrial electrical interference
The compact design allows installation directly on machinery structures, bearing housings, and equipment frames where available space may be limited.
The integrated electronic circuitry provides stable signal processing and reduces measurement disturbances caused by nearby electrical equipment such as motors, generators, and variable frequency drives.
The device is designed for long-term operation with minimal maintenance requirements, making it suitable for critical equipment operating continuously.
Product Advantages
Continuous Machinery Health Monitoring
The transmitter provides real-time vibration information during machine operation, allowing operators to continuously evaluate equipment condition.
Early Detection of Mechanical Problems
Continuous monitoring helps identify abnormal vibration patterns before they develop into serious equipment failures.
The transmitter supports detection of conditions such as:
- Bearing deterioration
- Rotor imbalance
- Shaft misalignment
- Mechanical looseness
- Coupling problems
- Excessive vibration
- Structural vibration issues
Reliable Industrial Operation
The rugged construction provides dependable performance in harsh industrial environments where equipment experiences vibration, dust, humidity, and temperature fluctuations.
Easy Integration with Control Systems
The standardized 4–20 mA output enables direct connection with common industrial monitoring and automation platforms.
Compact Installation
The small mechanical size allows installation in areas where larger monitoring equipment cannot be installed.
Reduced Maintenance Requirements
The integrated design minimizes the number of components requiring inspection and maintenance.
Improved Predictive Maintenance Efficiency
The continuous vibration signal allows maintenance teams to identify equipment problems earlier and schedule repairs according to actual machine condition.
Extended Equipment Life
Early identification of vibration-related problems helps prevent severe mechanical damage and improves overall machinery reliability.
Product Applications
The 991-06-50-02-00 is suitable for a wide range of industrial applications requiring continuous vibration monitoring.
Pump Monitoring
Typical applications include:
- Centrifugal pumps
- Process pumps
- Cooling water pumps
- Boiler feed pumps
- Circulation pumps
- Transfer pumps
Motor Monitoring
Suitable for:
- Large electric motors
- Drive motors
- Fan motors
- Pump motors
- Auxiliary motors
Compressor Monitoring
Used for:
- Air compressors
- Gas compressors
- Refrigeration compressors
- Industrial process compressors
Turbine Monitoring
Applicable to:
- Steam turbines
- Gas turbines
- Auxiliary turbine systems
General Industrial Machinery
Suitable equipment includes:
- Gearboxes
- Fans
- Blowers
- Cooling tower equipment
- Conveyor systems
- Mining machinery
- Chemical processing equipment
- Marine auxiliary systems
- Manufacturing machinery
- Utility equipment
Recommended Models from the Same Series or Related Series
| Model | Product Type | Output Signal | Power Supply | Frequency Response | Dimensions | Weight (kg) |
|---|---|---|---|---|---|---|
| 991-06-50-01-00 | Industrial Vibration Transmitter | 4–20 mA | 24 VDC | 10 Hz–1000 Hz | Approx. 112 × 38 mm | Approx. 0.45 kg |
| 991-06-50-01-01 | Industrial Vibration Transmitter | 4–20 mA | 24 VDC | 10 Hz–1000 Hz | Approx. 112 × 38 mm | Approx. 0.45 kg |
| 991-06-50-01-05 | Industrial Vibration Transmitter | 4–20 mA | 24 VDC | 10 Hz–1000 Hz | Approx. 112 × 38 mm | Approx. 0.45 kg |
| 991-06-50-01-CN | Industrial Vibration Transmitter | 4–20 mA | 24 VDC | 10 Hz–1000 Hz | Approx. 112 × 38 mm | Approx. 0.45 kg |
| 991-05-70-01-01 | Industrial Vibration Transmitter | 4–20 mA | 24 VDC | 10 Hz–1000 Hz | Approx. 112 × 38 mm | Approx. 0.45 kg |
Popular Models from the Same Brand
| Model | Product Type | Main Function | Application | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 3300 XL 8 mm Proximitor Sensor | Proximity Sensor System | Shaft Vibration and Position Monitoring | Turbines, Compressors, Motors | Approx. 120 × 45 mm | Approx. 0.60 kg |
| 330103-00-05-10-02-00 | Proximity Probe | Shaft Displacement Measurement | Rotating Machinery Protection | Approx. 110 × 25 mm | Approx. 0.30 kg |
| 3500/22M | Monitoring Interface Module | Machinery Data Collection | Online Monitoring Systems | Approx. 241 × 24 × 242 mm | Approx. 0.80 kg |
| 3500/42M | Machinery Monitoring Module | Vibration and Position Monitoring | Critical Equipment Protection | Approx. 241 × 24 × 242 mm | Approx. 0.85 kg |
| 3500/40M | Machinery Monitoring Module | Shaft Position and Vibration Measurement | Industrial Rotating Equipment | Approx. 241 × 24 × 242 mm | Approx. 0.82 kg |
Product Summary
The Bently Nevada 991-06-50-02-00 is a compact industrial vibration transmitter designed for continuous monitoring of rotating machinery. It provides reliable vibration measurement through a standard 4–20 mA analog output and supports direct integration with industrial automation systems.
As a member of the 991 Series, the transmitter combines vibration sensing, electronic signal processing, and signal transmission into one compact industrial device. This design provides a practical solution for machinery condition monitoring while reducing installation complexity and maintenance requirements.
The transmitter delivers stable performance in demanding industrial environments and helps maintenance personnel identify early signs of mechanical problems such as imbalance, bearing wear, misalignment, looseness, and abnormal vibration conditions.
Through continuous monitoring and predictive maintenance support, the 991-06-50-02-00 helps improve equipment reliability, reduce unexpected downtime, optimize maintenance schedules, extend machinery service life, and increase operational efficiency in industries including power generation, petrochemical processing, oil and gas, mining, metallurgy, water treatment, marine engineering, manufacturing, and industrial automation.