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- Bently Nevada
- 991-06-50-01-CN
- Vibration Transmitter
- USA
- 112 × 38 mm
- 0.45kg
- Xiamen, China
- New & In Stock
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Bently Nevada 991-06-50-01-CN
Comprehensive Product Overview, Technical Specifications, Product Applications, Advantages, Series Information, and Recommended Models
Product Overview
The Bently Nevada 991-06-50-01-CN is a compact industrial vibration transmitter designed for continuous online monitoring of rotating machinery. It is developed for applications where reliable vibration measurement, simple installation, and long-term operational stability are required.
The transmitter belongs to the 991 Series and is designed to continuously measure machine housing vibration and convert vibration signals into a standardized 4–20 mA analog current output. This output format enables direct connection with industrial control systems, including PLC, DCS, SCADA, and other automation platforms.
The 991-06-50-01-CN integrates vibration sensing, electronic signal conditioning, and output conversion functions into one compact industrial device. This integrated design reduces the need for additional signal-processing equipment, simplifies installation, and improves overall system reliability.
The transmitter is designed for permanent mounting on rotating equipment such as motors, pumps, compressors, fans, blowers, turbines, and gearboxes. By continuously collecting vibration data during machine operation, it provides important information about equipment condition and helps maintenance personnel identify abnormal operating conditions at an early stage.
Continuous vibration monitoring allows maintenance teams to move from traditional time-based maintenance toward condition-based maintenance. By analyzing vibration changes over time, engineers can identify potential issues such as bearing deterioration, rotor imbalance, shaft misalignment, mechanical looseness, coupling problems, and structural vibration before they cause serious equipment damage.
The compact structure and rugged industrial housing allow the transmitter to operate reliably in demanding environments where equipment may experience mechanical vibration, temperature changes, humidity, dust, oil contamination, and electrical interference.
The 991-06-50-01-CN is suitable for industrial applications requiring dependable machinery health monitoring, improved equipment reliability, reduced maintenance costs, and increased operational efficiency.
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 |
| Primary Measurement | Machine Housing Vibration |
| Application Purpose | Predictive Maintenance and Equipment Protection |
Product Series
The 991 Series is a compact industrial vibration transmitter family designed for continuous monitoring of rotating machinery.
The series provides a practical solution for equipment condition monitoring by combining vibration measurement technology, signal processing electronics, and analog output transmission into a single integrated device.
The main purpose of the 991 Series is to provide continuous vibration information from industrial machinery, allowing operators and maintenance engineers to understand equipment health in real time.
Compared with portable vibration measurement equipment, permanent vibration transmitters in this series continuously collect data during normal operation. This allows abnormal vibration trends to be identified earlier and enables maintenance activities to be planned more effectively.
The main characteristics of the 991 Series include:
- Permanent installation capability
- Continuous online vibration measurement
- Integrated signal conditioning
- Standard 4–20 mA output
- Compact mechanical design
- Strong environmental resistance
- Stable long-term operation
- Low maintenance requirements
- Easy integration with industrial control systems
Typical monitored equipment includes:
- Centrifugal pumps
- Electric motors
- Compressors
- Industrial fans
- Blowers
- Gearboxes
- Turbines
- Cooling tower equipment
- Process machinery
- Auxiliary rotating systems
The series is widely applied in industries where equipment availability and production reliability are critical.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 991-06-50-01-CN |
| Product Type | Industrial Vibration Transmitter |
| Product Series | 991 Series |
| Measurement Principle | Velocity-Based Housing Vibration Measurement |
| Monitoring Method | 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 991-06-50-01-CN is designed as a permanently installed vibration monitoring device for industrial rotating equipment. Its integrated structure combines sensing, processing, and signal transmission functions into a single compact unit.
The transmitter directly converts vibration measurements into a standard 4–20 mA output signal, allowing easy connection with existing industrial automation and monitoring systems.
The integrated electronics reduce the complexity of traditional vibration monitoring installations by eliminating the need for separate signal-conditioning modules.
The transmitter housing is designed for industrial environments and provides protection against:
- Mechanical vibration
- Dust exposure
- Humidity
- Oil contamination
- Temperature variation
- Electrical interference
The compact design allows installation on equipment with limited available space while maintaining reliable vibration measurement performance.
The internal electronic circuitry provides stable signal processing and improves resistance against interference from nearby electrical equipment such as motors, generators, transformers, and variable frequency drives.
The transmitter is optimized for long-term continuous operation and requires minimal maintenance, making it suitable for critical machinery operating in industrial facilities.
Product Advantages
Continuous Real-Time Monitoring
The transmitter provides continuous vibration information during normal equipment operation, allowing maintenance personnel to monitor machine condition without stopping production.
Early Fault Identification
Continuous vibration measurement helps detect developing mechanical problems before they become major failures.
Typical detectable conditions include:
- Bearing wear
- Rotor imbalance
- Shaft misalignment
- Mechanical looseness
- Coupling degradation
- Abnormal vibration increase
- Structural vibration problems
Reliable Industrial Performance
The rugged construction allows stable operation in harsh industrial environments with vibration, dust, humidity, temperature fluctuations, and electrical noise.
Easy System Integration
The standardized 4–20 mA analog output allows direct connection with common industrial automation systems, reducing installation complexity.
Compact Installation Structure
The small size allows mounting directly on machinery where installation space is limited.
Reduced Maintenance Requirements
The integrated design reduces the number of external components, lowering maintenance workload and improving system reliability.
Improved Predictive Maintenance Capability
Continuous vibration monitoring provides valuable equipment health information, helping maintenance teams schedule repairs according to actual machine condition.
Extended Machinery Service Life
Early detection of vibration problems allows corrective action before severe damage occurs, improving equipment reliability and reducing operating costs.
Product Applications
The 991-06-50-01-CN is widely used for continuous vibration monitoring of industrial rotating equipment.
Pump Applications
Suitable for:
- Centrifugal pumps
- Process pumps
- Cooling water pumps
- Boiler feed pumps
- Circulation pumps
- Transfer pumps
Motor Applications
Used for monitoring:
- Large electric motors
- Pump motors
- Fan motors
- Drive motors
- Auxiliary motors
Compressor Applications
Suitable for:
- Air compressors
- Gas compressors
- Refrigeration compressors
- Industrial process compressors
Turbine Applications
Used in:
- Steam turbine systems
- Gas turbine systems
- Auxiliary turbine equipment
General Industrial Applications
Applicable to:
- Gearboxes
- Fans
- Blowers
- Cooling tower drives
- Conveyors
- Mining equipment
- Chemical processing machinery
- Marine rotating systems
- Manufacturing equipment
- 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 |
| 991-01-XX-01-05 | 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 991-06-50-01-CN is a compact and reliable industrial vibration transmitter designed for permanent installation on rotating machinery requiring continuous condition monitoring.
As a member of the 991 Series, it combines vibration sensing, electronic signal processing, and standardized 4–20 mA analog transmission into one integrated industrial device. This design provides a simple, reliable, and cost-effective solution for machinery health monitoring.
The transmitter offers excellent environmental resistance, stable measurement performance, compact dimensions, and easy integration with industrial automation systems.
By continuously monitoring vibration conditions, the device helps detect early mechanical problems including imbalance, bearing degradation, shaft misalignment, looseness, and abnormal vibration behavior.
The 991-06-50-01-CN supports predictive maintenance strategies by improving fault detection, reducing unexpected equipment failures, optimizing maintenance planning, extending machinery service life, and increasing overall industrial production reliability.
It is suitable for applications in power generation, petrochemical processing, oil and gas facilities, mining operations, water treatment plants, marine engineering, manufacturing industries, and other environments where dependable rotating equipment monitoring is required.