Bently Nevada

Bently Nevada 125800-02 3500/25 Isolated Keyphasor I/O Module

SKU 125800-02

Disponibile
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Bently Nevada

  • Product No.: 125800-02

  • Country of origin:United States

  • Product Type: Isolated Keyphasor I/O Module

  • Barcode: 8537101190

  • Payment: T/T, Western Union

  • Weight: 460g

  • Dimensions: 241.3 × 24.4 × 103.1 mm (H × W × D)

  • Shipping port: Xiamen

  • Warranty: 12 months

Bently Nevada 125800-02 is the isolated Keyphasor I/O module with internal terminations for the 3500/25 Enhanced Keyphasor system. Baker Hughes lists this exact part number for magnetic-pickup applications. It is a rear I/O module, not the half-height 3500/25 main module.

Technical Specifications

Manufacturer Bently Nevada / Baker Hughes
Part number 125800-02
System 3500/25 Enhanced Keyphasor
Product type Isolated Keyphasor I/O module
Termination Internal termination
Primary transducer type Magnetic pickup
Isolated input range +5 V to −11 V
Input impedance 21.8 kΩ minimum
Passive magnetic-pickup limit More than 200 rpm (3.3 Hz)
Rack position One full-height rear slot
Operating temperature −30 to +65 °C for the non-barrier I/O configuration
Storage temperature −40 to +85 °C
Humidity 95%, non-condensing

Isolation and Signal Limits

The 125800-02 is intended for installations where a Keyphasor signal is paralleled to more than one device and must be isolated from another system. Baker Hughes states that it can also isolate a Proximitor application when an external transducer power supply is provided.

This isolated I/O design is intended mainly for shaft-speed measurement. It can pass phase information, but it introduces more phase shift than the non-isolated I/O version. Do not substitute it for a non-isolated Keyphasor I/O card without reviewing the phase-measurement requirement.

Dimensions and Air-Freight Planning

Product dimensions 241.3 × 24.4 × 103.1 mm (H × W × D)
Net weight 0.46 kg
Estimated protective package 300 × 100 × 170 mm
Calculated package volume 0.00510 m³
Package-size basis Editorial air-freight estimate; warehouse measurement overrides this value.

Ordering and Replacement Checks

  • Confirm that the required spare is 125800-02, not 125800-01 or 126648-02.
  • 125800-02 uses internal terminations. External termination hardware and cable rules do not apply to it.
  • Record the installed 3500/25 main-module part number and rack position before replacement.
  • For Proximitor inputs, verify the separate transducer power arrangement.
  • Review phase error if the channel is used for phase rather than speed.

FAQ

Is 125800-02 the 3500/25 front Keyphasor module?

No. Baker Hughes identifies 125800-02 as the isolated Keyphasor I/O module with internal terminations. It occupies a full-height rear slot and works with the 3500/25 main module.

What input is the 125800-02 intended for?

It was created for magnetic-pickup applications. Baker Hughes specifies an isolated input range of +5 V to −11 V and states that passive magnetic pickups require more than 200 rpm (3.3 Hz).

Can 125800-02 be used with a Proximitor transducer?

Baker Hughes states that the isolated I/O module can provide isolation for a Proximitor application when an external transducer power supply is provided. The power arrangement must be checked before connection.

Can 125800-02 replace 125800-01 directly?

Do not assume a direct substitution. 125800-02 is the isolated internal-termination version, while 125800-01 is the non-isolated internal-termination version. Review signal type, isolation and phase requirements.

What are the dimensions and weight of 125800-02?

The Baker Hughes 3500/25 datasheet gives 241.3 × 24.4 × 103.1 mm (H × W × D) and 0.46 kg for the I/O module.

View all FAQs →

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

Technical Datasheet

Bently Nevada 125800-02 3500/25 Isolated Keyphasor I/O Module

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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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