Bently Nevada 990-05-XX-02-00 165335-01 990 Vibration Transmitter

Product Introduction

The Bently Nevada 990-05-XX-02-00 (165335-01) 990 Vibration Transmitter is a highly reliable industrial device designed to convert dynamic vibration signals from sensors into standardized process signals suitable for use in control and monitoring systems. Engineered by Bently Nevada, a world leader in machinery condition monitoring, this transmitter serves as a bridge between field-level vibration sensors and plant control systems such as DCS (Distributed Control Systems) or PLC (Programmable Logic Controllers).

The 990 series vibration transmitter integrates signal conditioning, amplification, filtering, and conversion functionalities into a compact and rugged housing. It converts raw sensor output, typically from a velocity or acceleration transducer, into a proportional 4–20 mA output signal. This allows real-time vibration data to be transmitted seamlessly into process automation networks for predictive maintenance, alarm management, and overall equipment protection.

The 165335-01 version of the 990 transmitter is particularly suited for use in rotating machinery, including motors, pumps, compressors, and turbines. Its advanced internal electronics ensure high accuracy and low noise, even in harsh environments with high electromagnetic interference. The device’s stability, compatibility, and durability make it a preferred solution in both new installations and retrofit applications.

---

Technical Specifications

---

Applications

The Bently Nevada 990-05-XX-02-00 (165335-01) 990 Vibration Transmitter is engineered for continuous vibration monitoring and machinery protection across a wide variety of industrial environments. It converts raw sensor data into actionable vibration parameters that can be interpreted by control systems for performance assessment, early fault detection, and machine health analysis.

Typical application areas include:

• Pumps: Monitoring of bearing vibration and cavitation detection in chemical and water treatment plants.

• Compressors: Continuous tracking of vibration to prevent mechanical imbalance or rotor misalignment.

• Motors: Early detection of bearing wear and rotor unbalance in motor-driven equipment.

• Fans and Blowers: Vibration signal transmission for predictive maintenance and operational reliability.

• Turbines: Real-time monitoring of shaft vibration in gas and steam turbines for protection and performance optimization.

• Gearboxes: Detecting gear mesh issues, misalignment, and wear through vibration trends.

• Conveyors and rotating shafts: Condition-based monitoring of vibration amplitude to prevent downtime and mechanical failure.

This transmitter can be directly interfaced with DCS or PLC systems, enabling a fully automated vibration monitoring setup. It supports both analog signal transmission and digital system integration when combined with additional modules or network converters.

---

Product Advantages

• Reliable 4–20 mA Output: Provides standardized process signal for seamless integration with industrial control systems.

• High Signal Accuracy: Delivers precise vibration readings with minimal drift or signal loss.

• Rugged Industrial Design: Resistant to vibration, temperature variations, and mechanical shock.

• Wide Frequency Response: Captures both low- and high-frequency vibration data for comprehensive machine diagnostics.

• Easy Integration: Fully compatible with existing Bently Nevada transducers and monitoring systems.

• Electrically Isolated Output: Ensures safety and prevents ground loop interference.

• Built-in Signal Filtering: Reduces noise and enhances signal stability, even in EMI-prone environments.

• Low Maintenance Requirements: Simple installation and minimal recalibration needed over operational life.

• High Environmental Tolerance: Operates reliably in oil, gas, power, and heavy manufacturing industries.

• Proven Reliability: Backed by decades of Bently Nevada’s engineering expertise in condition monitoring solutions.

---

FAQ

1. What types of sensors can be used with the 990 Vibration Transmitter?
   The transmitter is compatible with velocity sensors, accelerometers, and proximity probes that provide voltage or current-based vibration signals.

2. How does the transmitter convert vibration signals into a process-compatible format?
   The internal circuitry filters and amplifies the incoming dynamic signal and converts it into a 4–20 mA DC output proportional to vibration amplitude.

3. Is the 990 transmitter suitable for use with the Bently Nevada 3300 or 3500 systems?
   Yes, it can interface indirectly with these systems via 4–20 mA process loops or directly with control inputs on DCS and PLC units.

4. Can the frequency response be adjusted for specific machinery types?
   Yes, depending on the model configuration (XX code), different frequency ranges and filter characteristics can be specified to match machine requirements.

5. What is the level of electrical isolation between input and output circuits?
   The transmitter provides 500 V RMS isolation, protecting against ground loops and electrical interference.

6. How is the vibration range scaling determined for the output signal?
   The scaling is defined by the model configuration code (XX), which specifies the vibration range corresponding to the 4–20 mA output span.

7. Does the transmitter provide RMS or peak vibration measurement?
   The output represents RMS vibration level by default, though certain variants can be configured for peak or peak-to-peak output.

8. Can the transmitter be powered from a standard industrial 24 VDC supply?
   Yes, it operates from 12 to 36 VDC, with 24 VDC being the nominal and most commonly used supply voltage.

9. How does the transmitter handle electrical noise or EMI from nearby equipment?
   Its dual-stage filtering and robust shielding significantly reduce electromagnetic interference, ensuring a clean signal.

10. Can the transmitter be mounted directly near the vibration source?
    Yes, the rugged enclosure allows for field mounting close to the vibration sensor, minimizing signal degradation over long cable runs.

---

Related Models (Same Series or Function)

---

Popular Models from the Same Brand

FAQ

1. What types of sensors can be used with the 990 Vibration Transmitter?
   The transmitter is compatible with velocity sensors, accelerometers, and proximity probes that provide voltage or current-based vibration signals.

2. How does the transmitter convert vibration signals into a process-compatible format?
   The internal circuitry filters and amplifies the incoming dynamic signal and converts it into a 4–20 mA DC output proportional to vibration amplitude.

3. Is the 990 transmitter suitable for use with the Bently Nevada 3300 or 3500 systems?
   Yes, it can interface indirectly with these systems via 4–20 mA process loops or directly with control inputs on DCS and PLC units.

4. Can the frequency response be adjusted for specific machinery types?
   Yes, depending on the model configuration (XX code), different frequency ranges and filter characteristics can be specified to match machine requirements.

5. What is the level of electrical isolation between input and output circuits?
   The transmitter provides 500 V RMS isolation, protecting against ground loops and electrical interference.

6. How is the vibration range scaling determined for the output signal?
   The scaling is defined by the model configuration code (XX), which specifies the vibration range corresponding to the 4–20 mA output span.

7. Does the transmitter provide RMS or peak vibration measurement?
   The output represents RMS vibration level by default, though certain variants can be configured for peak or peak-to-peak output.

8. Can the transmitter be powered from a standard industrial 24 VDC supply?
   Yes, it operates from 12 to 36 VDC, with 24 VDC being the nominal and most commonly used supply voltage.

9. How does the transmitter handle electrical noise or EMI from nearby equipment?
   Its dual-stage filtering and robust shielding significantly reduce electromagnetic interference, ensuring a clean signal.

10. Can the transmitter be mounted directly near the vibration source?
    Yes, the rugged enclosure allows for field mounting close to the vibration sensor, minimizing signal degradation over long cable runs.

Related Models (Same Series or Function)

---

Popular Models from the Same Brand

Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.

As for the delivery time, when we receive your order requirements, we will arrange for warehouse personnel to test and verify the products. After you place the order, we will send it to you within 24 hours.