1. Product Overview: Bently Nevada 3500/50 134938‑01

The 3500/50 134938‑01 is a Process / Electronic Input Module within the 3500 Machinery Protection System. Its role is to accept process signals (such as pressure, temperature, flow, analog 4–20 mA or voltage inputs) and integrate them into the condition monitoring and protection system. It allows plant process variables to be correlated with vibration or displacement metrics, enabling combined alerts or trends that account for both mechanical and process factors.

This module works in concert with other 3500 series modules (vibration, displacement, output, relays, gateway) to produce a unified monitoring solution. It is designed for rugged industrial environments and supports high reliability and availability.

2. Technical Specifications

3. Applications

The 3500/50 134938‑01 module is used wherever process parameters must be integrated with mechanical health monitoring. Typical applications include:

• Pressure Monitoring: Linking pressure trends with vibration spikes in compressors, pumps, or piping

• Temperature Monitoring: Capturing bearing or lubrication temperature changes in conjunction with vibration

• Flow / Level Signals: Combining flow or level readings with vibration/position to detect anomalies

• Alarm Correlation: Creating composite alerts when both mechanical and process variables cross thresholds

• Trending & Diagnostics: Merging process variables with mechanical time histories for root cause analysis

• Process Control Feedback: Feeding process data into control systems while being seen in machine protection dashboards

Industries benefiting include oil & gas, petrochemical, power generation, chemical processing, refining, and other heavy industries with rotating equipment plus complex process environments.

4. Advantages & Key Features

• Process‑Mechanical Integration: Enables combined logic and trending of process and mechanical parameters

• Multiple Channels: Supports 8 analog inputs, giving high flexibility for signal acquisition

• Wide Input Types: Handles voltage, current, and optionally RTDs or temperature sensors

• Channel Isolation: Galvanic isolation ensures signal integrity and protection from interference

• Buffered Outputs: Each channel gives buffered output for external systems without loading internal circuits

• User Configurable Logic: Custom alarms, limits, trend processing per channel

• Compact & Modular: Fits within standard 3500 rack architecture, no additional space needed

• Reliability in Harsh Conditions: Designed for industrial environments with wide thermal / humidity tolerance

5. Brand & Series

• Brand: Bently Nevada

• Series / Platform: 3500 Machinery Protection System

The 3500 Series is a modular, widely used platform for continuous machinery protection, merging vibration, displacement, process, output, and communication modules in unified racks.

6. Related / Alternative Models (Same Series or Functionally Adjacent)

Here are five modules in or adjacent to the 3500 line that complement or parallel the 3500/50.

These modules allow integration of mechanical, process, communication, and user interface capabilities in a unified 3500 system.

7. Popular Models from the Same Brand

Here are five other well-known Bently Nevada modules (outside or within 3500 platform) that are commonly used in industry, with brief parameter highlights: