3500/42M 138708-01 Bently Nevada Shaft Absolute I/O Module

Product Description

The Bently Nevada 138708-01, also cataloged as the 138708-01 Shaft Absolute I/O Module, operates as a dedicated hardware component for shaft absolute measurement signal processing within the 3500/42M Series Proximitor / Seismic Monitor system.

Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics Processing

The Bently Nevada 138708-01 receives proximity and seismic transducer signals through the 3500/42M monitoring architecture. The module processes dynamic machinery signals for shaft absolute measurement and supports rotor dynamics evaluation.

The module applies calibrated signal conversion for proximity-based measurements. Therefore, correct eddy-current probe scaling and gap voltage validation remain required during system commissioning. Bently Nevada proximity systems typically use gap voltage verification procedures, including -10 VDC target checks, to confirm probe operating range before vibration analysis.

The 16-bit A/D conversion provides digital signal representation for monitoring calculations. Additionally, the up to 10 kHz update rate supports high-speed acquisition of rotating equipment condition data.

Frequently Asked Questions

Q: What type of transducers can the 138708-01 accept?
A: The 138708-01 accepts input signals from proximity and seismic transducers within the Bently Nevada 3500/42M Series monitoring platform.

Q: Does the module require probe calibration before operation?
A: Yes. The connected eddy-current probe system requires correct scaling, mechanical installation verification, and gap voltage validation before measurement operation.

Q: What conversion resolution does the module provide?
A: The module provides 16-bit A/D conversion for processing shaft absolute measurement signals.

Field Installation Guidelines

Install the 138708-01 module according to the 3500 rack configuration requirements. Verify module seating, rack connector alignment, and mechanical retention before applying system power.

Connect proximity and seismic transducer wiring with proper cable routing practices. Keep signal wiring separated from high-voltage power conductors and sources of electromagnetic interference.

Verify cable shielding and grounding methods according to the monitoring system installation manual. Confirm probe polarity, signal continuity, and gap voltage values before enabling machinery protection functions.

Check the module configuration parameters inside the 3500 monitoring software after installation. Validate channel assignments, transducer types, and measurement scaling before placing the monitoring loop into service.

Other Attributes

• Series: 24765 and 135613 Case Expansion Transducer Systems
• Country of Origin: USA
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of The  Bently Nevada

Our Competitive Brands

• - ABB Advant-800xA，Advant OCS，Bailey Infi 90 and Net 90，H&B Freelance 2000，DSQC Robots，IGCT / IGBT
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• - Allen Bradley Allen-Bradley SLC500, MicroLogix, CompactLogix, ControlLogix, PLC-5, Panel View,
• - Bently Nevada 3300 System, 3500 System
• - Honeywell 7800 Series, FSC, IPC, Mxopen, TDC 2000, TDC 3000, Experion PKS(C200,C300)
• - Yokogawa Centum CS - Centum VP, Centum XL - micro XL, FA-M3, ProSafe-PLC
• - Ovation, Foxboro, EPRO, Emerson DeltaV, Fuji, Siemens, HIMA, Prosoft, Invensys Triconex, ICS TRIPLEX, Woodward, Bachmann, Schneider

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