Our Products

Comprehensive industrial automation solutions for global industries

Home / Bently Nevada / 138700-01
Product Categories
Product Categories

Contact us

If you are interested in our products and want to know more details,please Contact us,we will reply you as soon as we can.

Bently Nevada 3500/42 138700-01 Proximitor/Seismic Monitor
Bently Nevada 3500/42 138700-01 Proximitor/Seismic Monitor
Bently Nevada 3500/42 138700-01 Proximitor/Seismic Monitor
Popular Product

Bently Nevada 3500/42 138700-01 Proximitor/Seismic Monitor


Manufacturer: Bently Nevada

Product Number: 3500/42 (138700-01)

Category: 4-Channel Proximitor/Seismic Monitor

Number of Channels: 4

Series: 3500 Machinery Protection System

Application: Continuously measures and monitors vibration, shaft position, and seismic signals for critical rotating equipment

Contact Sales

Product Description

The Bently Nevada 3500/42 138700-01 is a four-channel Proximitor/Seismic Monitor designed for use in the 3500 Machinery Protection System. It continuously measures and monitors vibration, shaft position, and seismic signals from proximity probes, accelerometers, or velocity transducers. This module provides critical protection and early fault detection for rotating and reciprocating machinery, ensuring reliable operation and compliance with industry standards such as API 670.

Main Features

  • Four independent channels supporting proximity, velocity, or seismic inputs

  • Configurable measurement types including radial vibration, axial position, velocity, and acceleration

  • Dual-level alarms with programmable Alert and Danger setpoints

  • Buffered transducer outputs for advanced analysis and diagnostics

  • Hot-swappable design for ease of replacement without system interruption

  • LED indicators for module and channel status monitoring

  • Redundant rack power support through the 3500 backplane

  • Seamless integration with the 3500 system software for configuration and management

  • API 670 compliant, ensuring suitability for critical machinery protection applications

Technical Specifications

Dimensions and Weight

Item Specification
Dimensions 241.3 × 24.4 × 163.1 mm
Weight 0.46 kg

General Information

Item Specification
Manufacturer Bently Nevada
Model Number 3500/42 138700-01
Product Type Proximitor/Seismic Monitor Module
Mounting 3500 rack slot, hot-swappable
Operating Temp -30°C to +65°C
Storage Temp -40°C to +85°C

Electrical Characteristics

Item Specification
Channels 4
Input Types Proximity probes, accelerometers, velocity sensors
Input Range ±200 mV (sensor dependent)
Outputs 4–20 mA proportional outputs, buffered signals
Resolution 12-bit
Alarm Levels Two per channel (Alert and Danger)
Power Supply Via 3500 rack backplane, redundant supported

Environmental Specifications

Item Specification
Humidity Range 0–95% RH (non-condensing)
Vibration 5–2000 Hz, 0.7 g
Shock Resistance 30 g, 11 ms
Protection Class Designed for industrial environments

Industry Applications

The Bently Nevada 3500/42 138700-01 is widely applied in machinery monitoring and protection across industries:

  • Oil & Gas: Turbines, compressors, and critical rotating assets

  • Power Generation: Steam and gas turbines, and large generators

  • Petrochemical & Chemical: Compressors, pumps, and reactor equipment

  • Metals & Mining: Crushers, mills, and high-power rotating machines

  • Marine & Offshore: Propulsion systems, compressors, and diesel engines

  • Pulp & Paper: Paper machinery, motors, and critical rotating drives

Popular Product

Bently Nevada 3500/42 138700-01 Proximitor/Seismic Monitor

Manufacturer: Bently Nevada

Product Number: 3500/42 (138700-01)

Category: 4-Channel Proximitor/Seismic Monitor

Number of Channels: 4

Series: 3500 Machinery Protection System

Application: Continuously measures and monitors vibration, shaft position, and seismic signals for critical rotating equipment

Contact Sales

Product Description

The Bently Nevada 3500/42 138700-01 is a four-channel Proximitor/Seismic Monitor designed for use in the 3500 Machinery Protection System. It continuously measures and monitors vibration, shaft position, and seismic signals from proximity probes, accelerometers, or velocity transducers. This module provides critical protection and early fault detection for rotating and reciprocating machinery, ensuring reliable operation and compliance with industry standards such as API 670.

Main Features

  • Four independent channels supporting proximity, velocity, or seismic inputs

  • Configurable measurement types including radial vibration, axial position, velocity, and acceleration

  • Dual-level alarms with programmable Alert and Danger setpoints

  • Buffered transducer outputs for advanced analysis and diagnostics

  • Hot-swappable design for ease of replacement without system interruption

  • LED indicators for module and channel status monitoring

  • Redundant rack power support through the 3500 backplane

  • Seamless integration with the 3500 system software for configuration and management

  • API 670 compliant, ensuring suitability for critical machinery protection applications

Technical Specifications

Dimensions and Weight

Item Specification
Dimensions 241.3 × 24.4 × 163.1 mm
Weight 0.46 kg

General Information

Item Specification
Manufacturer Bently Nevada
Model Number 3500/42 138700-01
Product Type Proximitor/Seismic Monitor Module
Mounting 3500 rack slot, hot-swappable
Operating Temp -30°C to +65°C
Storage Temp -40°C to +85°C

Electrical Characteristics

Item Specification
Channels 4
Input Types Proximity probes, accelerometers, velocity sensors
Input Range ±200 mV (sensor dependent)
Outputs 4–20 mA proportional outputs, buffered signals
Resolution 12-bit
Alarm Levels Two per channel (Alert and Danger)
Power Supply Via 3500 rack backplane, redundant supported

Environmental Specifications

Item Specification
Humidity Range 0–95% RH (non-condensing)
Vibration 5–2000 Hz, 0.7 g
Shock Resistance 30 g, 11 ms
Protection Class Designed for industrial environments

Industry Applications

The Bently Nevada 3500/42 138700-01 is widely applied in machinery monitoring and protection across industries:

  • Oil & Gas: Turbines, compressors, and critical rotating assets

  • Power Generation: Steam and gas turbines, and large generators

  • Petrochemical & Chemical: Compressors, pumps, and reactor equipment

  • Metals & Mining: Crushers, mills, and high-power rotating machines

  • Marine & Offshore: Propulsion systems, compressors, and diesel engines

  • Pulp & Paper: Paper machinery, motors, and critical rotating drives

Related Products

Need a Custom Automation Solution?

Our team of experts can design and implement a tailored automation system to meet your specific requirements.