Bently Nevada 3500/62 133811-03 Process Variable Monitor

The Bently Nevada 3500/62 133811-03 Process Variable Monitor is a specialized monitoring module in the Bently Nevada 3500 Machinery Protection System. It is designed to interface with process variable signals such as pressure, flow, level, or temperature from industrial transmitters. By bringing process data into the same rack system that monitors machinery parameters like vibration and position, the 3500/62 allows engineers to view both machinery and process conditions in a unified platform.

This monitor accepts standard 4–20 mA signals and provides electrical isolation, scaling, alarming, and integration with the rack’s display and communication modules. The 3500/62 enhances plant reliability by enabling correlation of machinery health with process conditions, supporting both protection and predictive maintenance strategies.

Product Specifications

Product Applications

The 3500/62 133811-03 Process Variable Monitor extends the monitoring capabilities of the 3500 rack by including critical process signals. Common applications include:

• Turbomachinery Systems – Integrating process conditions (such as lube oil pressure, fuel gas pressure, or cooling water flow) with vibration and temperature monitoring.

• Compressors and Pumps – Monitoring suction/discharge pressures, flow rates, and bearing lube oil temperatures.

• Generators and Motors – Correlating process parameters with electrical load and mechanical behavior.

• Petrochemical and Refinery Plants – Supervising process-critical variables for plant protection.

• Power Plants – Monitoring cooling water systems, steam pressures, and process feed rates.

• Oil & Gas Facilities – Offshore and onshore process safety monitoring with machinery protection.

Product Advantages

• Unified Monitoring: Brings process variables and machinery data together in a single system.

• Flexible Inputs: Accepts standard 4–20 mA transmitter signals from multiple process instruments.

• High Accuracy: Ensures reliable process variable measurement for protection and diagnostics.

• Scalable: Four independent channels per module reduce the need for multiple devices.

• Real-Time Protection: Fast sampling ensures timely alarm response to abnormal conditions.

• System Integration: Works seamlessly with Bently Nevada 3500 rack displays and communication modules.

• Built-In Diagnostics: Detects signal loss, wiring faults, and module issues proactively.

• Proven Reliability: Industrial-grade design tested for continuous operation in demanding environments.

FAQ

1. What type of signals does the 3500/62 133811-03 accept?

   It accepts 4–20 mA process variable signals from transmitters.

2. How many channels are available per module?

   The module provides 4 independent input channels.

3. Are the input signals electrically isolated?

   Yes, galvanic isolation protects against ground loops and noise interference.

4. Can the module generate alarms based on input values?

   Yes, each channel supports configurable Alert and Danger alarm setpoints.

5. What is the measurement accuracy of the process variable inputs?

   Typically ±0.1% of full scale, depending on configuration.

6. Does the module support redundancy?

   Yes, it can operate in redundant configurations within the 3500 rack.

7. How does the system detect signal loss or wiring issues?

   Diagnostic functions monitor input status and trigger fault indications.

8. Can the process variable monitor integrate with System 1 software?

   Yes, data is available for condition monitoring and advanced analysis in System 1.

9. Is the module hot-swappable in the 3500 rack?

   Yes, it can be replaced without powering down the entire system.

10. How fast does the module respond to input changes?

    It provides real-time sampling and alarm response suitable for machinery protection.