Description
The Bently Nevada 135489-01 is a 3500 Series I/O module with internal barriers and internal terminations. It provides four channels for Proximity/Acceleration transducer applications and is associated with the 3500/42, 3500/70, and 3500/72 monitoring platforms.
The module interfaces field transducer signals with the machinery protection system. Its internal barrier design provides the required signal interface for installations where intrinsic-safety considerations are important, while the internal termination arrangement simplifies field wiring.
🔧 Key Features
• Bently Nevada 3500 Series I/O module
• Four Proximity/Acceleration channels
• Internal signal barriers
• Internal field terminations
• Designed for machinery protection applications
• Compatible with 3500/42M monitoring architecture
• Supports vibration and machine-condition monitoring
• Suitable for hazardous-area interface applications
• Rack-mounted industrial design
📋 Product Datasheet
• Brand: Bently Nevada
• Model: 135489-01
• Associated Monitor: 3500/42M
• Product Type: 4-Channel I/O Module with Internal Barriers
• Channel Configuration: 4 × Proximity/Acceleration
• Termination: Internal Terminations
• Barrier Type: Internal Barrier
• Primary Function: Transducer Signal Interface
• Compatible System: Bently Nevada 3500 Machinery Protection System
• Typical Signals: Proximity Probe / Accelerometer Signals
• Power Supply: Supplied through 3500 rack
• Nominal Circuit Voltage: Approx. 26.25 VDC*
• Signal Circuit Voltage: Approx. 13.65 VDC*
• Dimensions: Approx. 241.3 × 24.4 × 163.1 mm*
• Weight: Approx. 0.46 kg
• Mounting: 3500 rack I/O slot
• Operating Temperature: Approx. -30 to +65 °C*
• Country of Origin: USA
• Application: Machinery Protection / Vibration Monitoring
🏭 Typical Applications
The 135489-01 is suitable for rotating machinery monitoring where vibration, shaft movement, and machine-condition information need to be continuously evaluated.
Typical applications include:
• Steam turbines
• Gas turbines
• Compressors
• Pumps
• Generators
• Motors
• Industrial rotating equipment
• Oil and gas machinery
⚡ Functional Description
The 135489-01 provides the physical interface between compatible Bently Nevada transducers and the 3500 monitoring system. The four channels are configured for Proximity/Acceleration applications, allowing the system to acquire vibration and displacement-related signals for machinery protection.
The internal barriers are particularly useful where the monitoring system interfaces with equipment installed in hazardous or classified areas. The internal termination arrangement also avoids the need for a separate external termination block in the corresponding configuration.
🔌 Installation & Configuration
Basic installation procedure:
• Confirm the 3500 rack and monitor configuration
• Verify that the 135489-01 is the required I/O option
• Install the module in the designated rack position
• Connect compatible transducer wiring
• Verify probe and accelerometer channel assignments
• Configure monitoring parameters through the 3500 configuration software
• Check signal levels and channel status
🛠️ Commissioning Checklist
Before startup:
• Verify module part number
• Check transducer type and wiring
• Confirm channel assignments
• Inspect connectors and terminations
• Verify rack power
After startup:
• Confirm module recognition
• Check each channel’s signal
• Verify vibration/displacement values
• Test alarm setpoints
• Review system diagnostics
• Confirm machinery protection logic
📦 Ordering Information
The correct identification is:
BENTLY NEVADA 135489-01 | 3500/42M I/O Module with Internal Barriers | 4 Prox/Accel Channels | Internal Terminations
The 135489-01 is specifically identified as a 3500 Series I/O module with internal barriers, four Proximity/Acceleration channels, and internal terminations.
Dimensions, voltage, and environmental specifications marked with an asterisk are reference values. Verify the exact hardware revision and system configuration before engineering installation.
