Product Introduction

The Bently Nevada 3500/40 149716‑01 TMR Proximitor I/O Module with External Terminals is a compact yet powerful module for proximity sensor signal acquisition. Designed for TMR‑based monitoring systems, it provides robust and precise I/O handling while simplifying cabinet wiring with external terminal access. Its industrial design supports high reliability in critical rotating machinery applications.

Technical Specifications

Specification	Description
Product Type	TMR Proximitor I/O Module with External Terminals
Model	3500/40
Part Number	149716‑01
Function	Proximity sensor signal input/output with redundancy support
Architecture	TMR (Triple Modular Redundancy)
Application	Machinery vibration and position monitoring
Manufacturer	Bently Nevada
Installation	Rack mounting in 3500 Series systems
Dimensions	241.3 × 24.4 × 99.1 mm
Weight	0.2 kg

Recommended Related Models

Bently Nevada 3500/40 Proximitor I/O Modules (135489‑04) – Standard I/O variant
Bently Nevada 3500/40 Preamplifier Monitors (140734‑01) – Signal conditioning units
Bently Nevada 3500/42 Seismic & Preamplifier Modules – Vibration monitoring boards
Bently Nevada 3300 XL Probes – Field proximity and vibration transducers

Popular Related Models

Bently Nevada 3500/40 Enhanced Key Phase Modules – Speed and phase signal capture
Bently Nevada 3500/25 I/O Module Families – Complementary I/O options
Bently Nevada Keyphasor Signal Modules – Speed/position reference modules
Bently Nevada System Interface Boards – Rack communication boards

Application Scenarios

The Bently Nevada 3500/40 149716‑01 TMR Proximitor I/O Module with External Terminals is designed for high‑reliability machinery monitoring and protection. It is widely used in:

Rotating equipment protection — turbines, compressors, generators
Proximity sensor signal acquisition for shaft position and vibration analysis
Trip/overspeed and machinery protection systems
Redundant (TMR) architectures for maximum uptime
Control and condition monitoring cabinets where external terminations simplify field wiring

Key Advantages

This module offers precise measurement capabilities with robust industrial design:

TMR (Triple Modular Redundancy) interface enhances reliability and fault tolerance
External terminals simplify wiring and maintenance in control cabinets
Compact and lightweight — space‑efficient mounting in 3500 Series racks
High‑fidelity signal acquisition suitable for demanding proximity sensor inputs
Seamless integration with Bently Nevada 3500 Series monitoring systems

Technical FAQs

What is the main function of this module?
It provides TMR‑ready Proximitor I/O signal acquisition with external termination flexibility.
What does “TMR” signify here?
Triple Modular Redundancy — a fault‑tolerant architecture that increases reliability.
Can it handle multiple sensor channels?
Yes — it processes multiple Proximitor sensor inputs and outputs to the monitoring system.
Is continuous operation supported?
Yes — designed for continuous 24/7 industrial use.
What advantages do external terminals provide?
They make field wiring, maintenance, and troubleshooting more accessible.
Is it compatible with other 3500 Series modules?
Yes — it is fully integrated within 3500/40 and general 3500 monitoring systems.
Does it simplify cabinet wiring?
Yes — external terminals reduce complex internal terminations.
Can it be used in redundant systems?
Yes — it’s designed for TMR configurations requiring high availability.
Does installation require special tools?
No — standard rack and wire termination tools are sufficient.
Why choose an original Bently Nevada module?
To ensure reliable compatibility, measurement accuracy, and long‑term operational stability.