125680-01

Proximitor I/O Module with Internal Terminations

The standard internal-termination rear I/O module for a Bently Nevada 3500/40M Proximitor Monitor, providing field connections for up to four proximity-transducer channels.

BRANDBently Nevada

STOCK CONFIRMATIONLead time: 2–3 days

CONDITIONBrand new and original

WARRANTY12 months

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Product overview

Bently Nevada part number 125680-01 is the Proximitor I/O Module with Internal Terminations listed for the 3500/40M Proximitor Monitor. It installs in the full-height rear slot behind the monitor and provides the internal field-termination interface for the monitor channels.

The associated 3500/40M monitor accepts one to four proximity-transducer signals and can be configured for radial vibration, thrust position, eccentricity, differential expansion or REBAM measurements. This part is the rear I/O module, not the 176449-01 front monitor module.

SUITABLE APPLICATIONS

Where the 125680-01 I/O module is used

3500/40M proximity-transducer channel wiring
Radial vibration and thrust-position monitoring
Eccentricity and differential-expansion monitoring
Installed 3500 rack maintenance and exact replacement

BENTLY NEVADA MODEL CODE

Model number breakdown

Read the complete ordering code from left to right. Every group matters when matching an installed system or preparing a spare.

3500/40M 176449-01 + 125680-01: Standard internal-termination module pair: front monitor 176449-01 + rear I/O card 125680-01
176449-01: Front card — 3500/40M four-channel Proximitor Monitor
125680-01: Rear card — Proximitor I/O Module with internal terminations

VERIFIED MODEL DATA

Technical specifications

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Manufacturer: Bently Nevada (Baker Hughes)
Part number / MPN: 125680-01
Product designation: Proximitor I/O Module with Internal Terminations
Used with: 3500/40M Proximitor Monitor; companion front monitor part 176449-01
Ordering option: 3500/40M I/O module type 01
Channel interface: Supports the field connections for 1 to 4 proximity-transducer signals through the associated monitor
Termination style: Internal terminations; external termination blocks are not used with this I/O type
Rack position: One full-height rear slot behind the associated monitor
Operating temperature: −30 to +65 °C when used as an internal/external termination I/O module
Storage temperature: −40 to +85 °C
Humidity: 95% non-condensing
Dimensions (H × W × D): 241.3 × 24.4 × 99.1 mm
Weight: 0.20 kg
Internal connector headers: Euro-style 8-pin and 12-pin headers are listed for the internal I/O module

Technical values are compiled from official Bently Nevada product documentation for this exact article number. Always check the delivered unit nameplate and revision before installation.

BUYER QUESTIONS

Frequently asked questions

Is 125680-01 the 3500/40M monitor itself?

No. It is the rear Proximitor I/O Module with Internal Terminations. The official spare listing identifies 176449-01 as the 3500/40M front monitor module.

How many channels does the associated monitor support?

The 3500/40M accepts one to four proximity-transducer signals.

Can external termination blocks be used with this module?

No. Official ordering guidance states that external termination blocks cannot be used with internal-termination I/O modules.

What should be checked before replacement?

Confirm the full part number, internal-termination requirement, companion 3500/40M hardware, rack position, connector headers and connected transducer configuration.

RELATED BENTLY NEVADA AUTOMATION PARTS

176449-013500/40M Proximitor Monitor 126615-01Proximitor I/O Module with External Terminations 135489-04Proximitor I/O Module with Internal Barriers

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