Description
Product Overview
The BENTLY 3500/91 is a communication gateway module designed for integration within Bently Nevada 3500 Series machinery protection systems. This module provides a reliable interface between the 3500 rack and external control or monitoring systems, enabling secure transmission of machinery condition data and system status information.
The 3500/91 plays a key role in plant-wide condition monitoring architectures, supporting efficient data exchange and centralized diagnostics for critical rotating equipment.

BENTLY 3500/32M
Key Features
- Communication gateway for Bently Nevada 3500 systems
- Reliable data transmission to external systems
- Designed for industrial networking environments
- High stability for continuous operation
- Seamless integration with 3500 rack architecture
Product Parameters
| Parameter | Specification |
|---|---|
| Product Model | 3500/91 |
| Manufacturer | Bently Nevada |
| Product Type | Communication Gateway Module |
| System Series | Bently Nevada 3500 |
| Communication Function | Data and status transmission |
| Mounting Type | 3500 rack-mounted |
| Operating Mode | Continuous operation |
| Application | Machinery protection communication |
Product Datasheet (Technical Summary)
| Technical Item | Description |
|---|---|
| Data Interface | Industrial communication interface |
| Supported Data | Monitoring values and system status |
| System Connection | 3500 rack backplane |
| Power Supply | Provided via 3500 rack |
| Diagnostics | Self-monitoring functions |
| Operating Environment | Industrial control cabinet |
Country of Origin
United States (USA)
Product Keywords
BENTLY 3500/91 Communication Module, Machinery Protection Gateway, 3500 System Interface Card, Condition Monitoring Network Module,
Bently Nevada Spare Parts,
Industrial Monitoring Modules
Usage Instructions
- Power down the 3500 rack before installing the module.
- Insert the 3500/91 module into the designated slot in the rack.
- Secure the module and connect the communication interface as required.
- Restore system power and allow the rack to complete initialization.
- Verify communication status through the monitoring system.
Frequently Asked Questions (Q&A)
Q1: What is the main function of the 3500/91 module?
A: It provides communication between the 3500 rack and external systems.
Q2: Is the 3500/91 suitable for continuous operation?
A: Yes, it is designed for 24/7 industrial monitoring environments.
Q3: Can it be used as a direct replacement?
A: Yes, it is typically used as a direct replacement for the same model.
Q4: Does it require software configuration?
A: Basic communication setup and verification are recommended after installation.
Q5: What systems commonly interface with this module?
A: Plant control systems, condition monitoring platforms, and supervisory systems.
Similar Model Recommendations
| Model Number | Description |
|---|---|
| 3500/90 | System Interface Module |
| 3500/92 | Enhanced Communication Gateway |
| 3500/22M | Transient Data Interface |
| 3500/94M | Display Interface Module |
| 3500/91-01 | Updated Revision Communication Module |



