ALL PRODUCTS

Bently Nevada 138708-01 Shaft Absolute I/O Module with Internal Terminations Ready For Ship

Bently Nevada 138708-01 Shaft Absolute I/O Module with Internal Terminations Ready For Ship

Product Name:Shaft Absolute I/O Module

Brand Name:Bently Nevada

Model Number:138708-01

Country of Origin:USA

Warranty:12 Months

Whatsapp：+86 18159889985

Email：[email protected]

Appurtenance:

o module with internal terminations ready for ship-1

Overview
Contact for quotation
Specifications
Description
Applications
Features
Functions
FAQ
Spares
Recommended Products

Overview

Brand Name:	Bently Nevada
Model Number:	138708-01
Country of Origin:	USA
Packaging Details:	Original new Factory Sealed
Delivery Time:	in stock
Payment Terms:	T/T

Contact for quotation

Sales Manager:	Stella
Send an email:	[email protected]
Contact in Whatsapp:	+86 18159889985

Specifications

Parameter	Specification
Model	138708-01
Product Type	Shaft Absolute I/O Module
Manufacturer	Bently Nevada
Series	3500 Machinery Protection System
Compatible Monitor	3500/42M Proximitor Seismic Monitor
Termination Type	Internal Termination
Supported Sensor Types	Proximitor Sensors, Velomitor Sensors
Monitoring Function	Shaft Absolute Vibration Monitoring
Output Supply Voltage	23.9 V (Prox & Velomitor), 6.82 V (Prox & Seismoprobe)
Output Current	45.5 mA
Maximum Output Power	1.09 W
Operating Temperature	-30°C to +65°C
Storage Temperature	-40°C to +85°C
Humidity Rating	95% Non-Condensing
Dimensions (H × W × D)	241.3 × 24.4 × 99.1 mm
Weight	0.20 kg (0.44 lb)
Rack Requirement	One Full-Height Rear Slot
Compliance	FCC, EMC, CE, RoHS
Hazardous Area Certifications	ATEX, IECEx, CSA cNRTLus
Application	Machinery Protection, Shaft Vibration Monitoring, Predictive Maintenance

Description

138708-01 is a Bently Nevada 3500/42M Shaft Absolute I/O Module with Internal Terminations, designed to work with the 3500 Series machinery protection platform for advanced vibration and shaft position monitoring. The module supports both proximity and velocity sensing technologies, enabling accurate machine condition assessment in critical rotating equipment applications.

Integrated with the 3500/42M Proximitor Seismic Monitor, 138708-01 delivers reliable signal conditioning for shaft absolute vibration measurements, helping operators identify developing mechanical issues before they lead to costly downtime. Its internal termination design simplifies installation while maintaining dependable signal integrity.

Widely deployed in power generation, oil & gas, petrochemical, and industrial manufacturing facilities, 138708-01, together with modules such as 128229-01, 128240-01, and 138700-01, provides a robust solution for predictive maintenance and machinery protection systems.

Applications

Power plants: Used for turbine shaft vibration monitoring, machinery protection, and predictive maintenance programs.
Substations: Supports rotating equipment condition monitoring and auxiliary machinery diagnostics.
Chemical plants: Provides continuous vibration measurement for compressors, pumps, and process-critical assets.
Steel mills: Enables reliable shaft condition monitoring in harsh environments with high temperatures and electromagnetic interference.
Machinery manufacturing plants: Applied in test benches, rotating equipment monitoring, and production machinery diagnostics.

Features

Four-channel machinery monitoring support.
Compatible with proximity and velocity transducers.
Internal termination design for simplified wiring.
High-accuracy shaft absolute vibration measurement.
Continuous machine protection and alarm monitoring.
Supports predictive maintenance strategies.
Seamless integration with Bently Nevada 3500 systems.

Functions

Acquires shaft vibration and position signals.
Conditions sensor inputs for accurate measurements.
Supports shaft absolute monitoring applications.
Provides data for alarm and protection functions.
Assists maintenance teams in detecting early machine faults.
Enhances equipment reliability and operational safety.

FAQ

Q1: What is the primary function of the 138708-01 module?
A1: It provides shaft absolute vibration monitoring and signal conditioning within a Bently Nevada 3500 system.

Q2: Which monitor works with the 138708-01?
A2: It is designed for use with the 3500/42M Proximitor Seismic Monitor.

Q3: What sensors are supported by the 138708-01?
A3: The module supports Proximitor and Velomitor sensor inputs.

Q4: Is the 138708-01 suitable for turbine monitoring?
A4: Yes, it is widely used for turbine, compressor, and other rotating machinery applications.

Q5: What is the advantage of the internal termination design?
A5: Internal termination reduces wiring complexity and improves installation efficiency.

Spares

Number	Description
148722-01	3300 XL Test Plug with three color-coded 1-meter leads and banana plugs for testing Proximitor Sensor performance without disconnecting field wiring.
04310310	3300 XL Proximitor Sensor panel-mount screw, 6-32 UNC thread-forming type. Four screws required per sensor installation.
03200006	Silicone self-fusing tape, 9.1 m (10 yd) roll, providing electrical insulation and environmental protection for connectors.
40113-02	Connector Protector Kit for 3300 XL 8 mm probes and extension cables, including connector protectors and installation tools.
136536-01	Connector protector adapter for compatibility with pre-1998 installation tools used with 75Ω ClickLoc connectors.
40180-02	Package containing 10 pairs of connector protectors for 3300 XL 8 mm probes and extension cables.
03839410	75Ω triaxial male connector protector for extension cable connections, providing environmental protection against moisture and contaminants.
03839420	75Ω triaxial female connector protector for probe and extension cable connections, providing environmental sealing and connector protection.
04301007	3/8-24 probe lock nut with dual safety-wire holes for secure probe mounting in vibration-prone applications.
04301008	M10 × 1 probe lock nut with dual safety-wire holes for secure installation and retention of proximity probes.
330153-01	3300 XL Connector Kit containing male and female ClickLoc connectors, color-coded sleeves, FEP tubing, and silicone tape for cable termination and maintenance.