Product Introduction: Flexible Vibration Monitoring Solution for Rotating Machinery
The Bently Nevada 990-10-XX-01-00 990 Vibration Transmitter is a compact, two-wire, loop-powered vibration monitoring device designed to provide reliable vibration measurement for industrial rotating equipment. Developed for OEM machinery builders and process industries, this transmitter converts displacement vibration signals from a compatible 3300 NSv proximity probe system into a standard 4–20 mA proportional output, allowing direct connection to PLC, DCS, SCADA, and machinery control systems.
Featuring integrated Proximitor® sensor electronics, the 990-10-XX-01-00 eliminates the requirement for a separate signal conditioning module. This compact design reduces installation complexity while delivering accurate vibration monitoring for centrifugal compressors, pumps, motors, fans, and other rotating machinery where continuous equipment health information is required.
The “-10” configuration provides a 0–10 mils peak-to-peak (0–250 μm pp) vibration measurement range, while the “-XX” system length option allows configuration according to the required proximity probe and extension cable arrangement. The “-01” mounting option provides 35 mm DIN rail installation capability, making it suitable for electrical cabinets and OEM control panels.
Technical Specifications: Engineering Data and Performance Details
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 990-10-XX-01-00 |
| Product Type | 990 Vibration Transmitter |
| Measurement Range | 0–10 mils peak-to-peak (0–250 μm pp) |
| Input Sensor | 3300 NSv Non-contacting Proximity Probe |
| System Length Option | XX configurable transducer system |
| Output Signal | 4–20 mA proportional vibration output |
| Loop Configuration | Two-wire loop powered |
| Power Supply | +12 to +35 VDC |
| Mounting Type | 35 mm DIN rail clips |
| Frequency Response | 5 Hz to 6 kHz |
| Accuracy | ±1.5% of specified full-scale range |
| Probe Gap Range | 0.5 to 1.75 mm (20 to 55 mils) |
| Diagnostic Output | PROX OUT and COM terminals |
| Signal Conditioning | Integrated Proximitor® electronics |
| Loop Resistance | Maximum 1,000 Ω at 35 VDC |
| Current Limiting | Approximately 23 mA |
| Operating Temperature | -35°C to +85°C |
| Storage Temperature | -52°C to +100°C |
| Construction | Rugged potted industrial electronics |
| Dimensions | Approx. 100 mm × 73 mm × 50 mm |
| Weight | Approx. 0.43 kg |
Industrial Applications: Built for Continuous Machinery Condition Monitoring
The 990-10-XX-01-00 vibration transmitter is designed for machinery applications where operators require a dependable vibration signal without installing a complete rack-based protection system.
| Industry | Typical Equipment |
|---|
| Oil & Gas | Centrifugal compressors, process pumps |
| Petrochemical | Rotating process machinery |
| Power Generation | Auxiliary turbines, generators |
| Manufacturing | Motors, fans, blowers, gearboxes |
| Water Treatment | Large pump systems |
| OEM Machinery | Compressor packages and skid systems |
Typical applications include:
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Rotating equipment vibration trending
-
Machinery condition monitoring
-
Predictive maintenance programs
-
Equipment alarm monitoring
-
PLC/DCS vibration input integration
-
Remote machinery health assessment
The 990 transmitter family is especially suited for OEM applications requiring a simple 4–20 mA proportional vibration signal as the input to machinery control systems.
Product Advantages: Designed for Efficient Machinery Protection
Integrated Proximitor® Electronics
The built-in Proximitor® sensor technology combines signal conditioning and vibration transmission functions into a single compact unit. This reduces wiring requirements, saves cabinet space, and simplifies installation compared with separate probe conditioning systems.
Wide 10 mil Peak-to-Peak Measurement Range
The “-10” range option provides a full-scale vibration measurement capability of 0–10 mils pp (0–250 μm pp), making this transmitter suitable for machinery requiring a wider monitoring range than standard 5 mil configurations.
Flexible System Length Selection
The “-XX” option allows users to select the required transducer system length based on installation requirements. This flexibility supports different machinery layouts where probe location and control cabinet distance vary.
DIN Rail Mounting Convenience
The “-01” mounting configuration provides 35 mm DIN rail clips for quick installation inside control cabinets, OEM panels, and industrial enclosures.
Standard 4–20 mA Industrial Interface
The transmitter provides a widely accepted analog current output that integrates easily with existing automation systems. Operators can monitor vibration levels through PLC, DCS, or SCADA platforms without additional signal conversion hardware.
Built-In Diagnostic Capability
The PROX OUT and COM terminals provide access to vibration and gap voltage signals, allowing technicians to perform commissioning checks, troubleshooting, and system verification.
Reliable Industrial Construction
The transmitter uses rugged potted electronics designed for demanding industrial environments, supporting operation in areas exposed to humidity, vibration, and temperature fluctuations.
Technical FAQs
1. What is the Bently Nevada 990-10-XX-01-00 used for?
It is used for continuous vibration monitoring of rotating machinery by converting proximity probe signals into a proportional 4–20 mA output.
2. Which sensor is compatible with this transmitter?
The transmitter is designed for use with Bently Nevada 3300 NSv proximity probes and matching extension cable systems.
3. What does “10” indicate in the model number?
The “10” represents a full-scale vibration measurement range of 0–10 mils peak-to-peak (0–250 μm pp).
4. What does “XX” mean?
The “XX” indicates a configurable transducer system length based on the required probe and extension cable combination.
5. What mounting method does this model use?
The “01” option provides 35 mm DIN rail mounting clips.
6. What output signal does the transmitter provide?
It provides a standard 4–20 mA proportional vibration output for industrial control systems.
7. Does it require an external Proximitor module?
No. The Proximitor® electronics are integrated into the transmitter housing.
8. What power supply is required?
The transmitter operates using a +12 to +35 VDC loop-powered supply.
9. What diagnostic connections are available?
The unit provides PROX OUT and COM terminals for vibration signal monitoring and gap voltage diagnostics.
10. What machines commonly use this transmitter?
Typical applications include compressors, pumps, motors, fans, blowers, and other industrial rotating equipment.
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