Product Introduction: Compact Machinery Protection Transmitter for Industrial Applications
The Bently Nevada 990-05-XX-01-00 990 Vibration Transmitter is a compact two-wire, loop-powered vibration monitoring device engineered for continuous condition monitoring of rotating machinery. Designed for OEM equipment manufacturers and industrial facilities, this transmitter converts vibration signals from compatible proximity probe systems into a proportional 4–20 mA output, allowing seamless connection with PLC, DCS, SCADA, and machinery control systems.
The 990 series integrates Proximitor® electronics into the transmitter housing, providing signal conditioning and vibration measurement in a single compact package. This design reduces system complexity, minimizes cabinet space requirements, and offers a practical monitoring solution for compressors, pumps, motors, fans, and other critical rotating assets.
The 990-05-XX-01-00 configuration features a 0–5 mils peak-to-peak (0–125 μm pp) measurement range, 35 mm DIN rail mounting, and a flexible system length option represented by “XX”, allowing selection according to the required transducer cable configuration.
Technical Specifications: Product Data and Engineering Parameters
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 990-05-XX-01-00 |
| Product Type | 990 Vibration Transmitter |
| Series | 990 Two-Wire Vibration Transmitter |
| Measurement Range | 0–5 mils pp (0–125 μm pp) |
| Input Type | Proximity probe signal input |
| Compatible Sensor | 3300 NSv Proximity Probe System |
| Output Signal | 4–20 mA proportional vibration output |
| Power Supply | 12–35 VDC loop powered |
| System Length | XX configurable transducer system |
| Mounting Method | 35 mm DIN rail clips |
| Diagnostic Output | PROX OUT and COM terminals |
| Signal Conditioning | Integrated Proximitor® electronics |
| Frequency Response | 5 Hz to 6 kHz |
| Operating Temperature | -35°C to +85°C |
| Storage Temperature | -51°C to +100°C |
| Construction | Industrial potted electronics |
| Protection Design | Rugged industrial enclosure |
| Dimensions | Approx. 100 mm × 74 mm × 60 mm |
| Weight | Approx. 0.45 kg |
Typical Industrial Applications: Designed for Reliable Machine Health Monitoring
The 990-05-XX-01-00 vibration transmitter provides an efficient monitoring solution for equipment operators who require vibration feedback without installing a complete rack-based machinery protection system.
| Industry | Typical Equipment |
|---|
| Oil & Gas | Compressors, pumps, rotating process equipment |
| Petrochemical | Chemical processing machinery |
| Power Generation | Turbines, auxiliary rotating systems |
| Manufacturing | Motors, fans, blowers, gearboxes |
| Water Industry | Large pumping equipment |
| OEM Machinery | Compressor and pump packages |
Common application areas include:
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Continuous vibration monitoring
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Machinery condition assessment
-
Predictive maintenance programs
-
Equipment alarm monitoring
-
Remote vibration signal transmission
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PLC/DCS integration
The transmitter is particularly suited for OEM applications where a simple and reliable 4–20 mA vibration signal is preferred for machinery control systems.
Product Advantages: Engineered for Simplified Vibration Monitoring
Integrated Proximitor® Electronics
The built-in Proximitor® design combines signal conditioning and transmitter functionality into one device. This reduces additional hardware requirements and provides a cleaner installation approach for machinery monitoring systems.
Standard 4–20 mA Industrial Output
The transmitter provides a widely accepted analog output signal that can be directly connected to industrial automation platforms. This enables operators to monitor vibration trends through existing control infrastructure without additional signal conversion equipment.
Flexible System Length Configuration
The XX system length option allows users to select the appropriate probe and extension cable combination according to installation requirements. This flexibility makes the transmitter suitable for various machinery layouts and equipment packages.
DIN Rail Installation Design
The 01 mounting option provides 35 mm DIN rail clips, supporting fast installation inside electrical cabinets, OEM control panels, and machinery monitoring enclosures.
Built-In Diagnostic Capability
The PROX OUT and COM terminals provide access to dynamic vibration and gap voltage signals, helping maintenance teams perform commissioning checks, troubleshooting, and system verification.
Durable Industrial Construction
The transmitter uses a ruggedized design intended for industrial environments, helping maintain stable operation under vibration, temperature variation, and demanding operating conditions.
Technical FAQs
1. What is the Bently Nevada 990-05-XX-01-00 used for?
The transmitter is used for continuous monitoring of rotating machinery vibration by converting proximity probe signals into a 4–20 mA output.
2. What type of sensor does this transmitter support?
It is designed for use with compatible Bently Nevada proximity probe systems, including 3300 NSv configurations.
3. What does “05” mean in the model number?
The “05” indicates a full-scale vibration measurement range of 0–5 mils peak-to-peak (0–125 μm pp).
4. What does “XX” represent?
The “XX” indicates that the transducer system length is configurable according to the required probe and extension cable arrangement.
5. What mounting method does this model use?
The “01” option specifies 35 mm DIN rail mounting clips.
6. What output signal does the transmitter provide?
The unit provides a standard 4–20 mA proportional vibration output for industrial control systems.
7. Does the transmitter require an external Proximitor module?
No. The Proximitor® electronics are integrated into the transmitter assembly.
8. What power supply is required?
The transmitter operates from a 12–35 VDC loop-powered supply.
9. What diagnostic functions are available?
The transmitter provides PROX OUT and COM terminals for vibration signal analysis and gap voltage checking.
10. What equipment commonly uses this transmitter?
Typical applications include compressors, pumps, motors, fans, blowers, and other rotating industrial machinery.
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