Bently Nevada 128276-01 Half-Height Future Expansion Faceplate

Bently Nevada 128276-01: Description

The 128276-01 is identified as a specialized I/O module accessory designed for integration with the 

3500/42M Proximitor Seismic Monitor. It functions as a supplementary interface module, likely 

providing enhanced connectivity or signal conditioning capabilities for proximity, seismic 

(velocity/acceleration), or Seismoprobe transducers. Its core role is to extend the monitor’s 

input/output functionality, ensuring reliable signal transmission between field transducers and the 

main 3500/42M monitor module in industrial machinery protection applications.

Engineered for form-fit-function compatibility with the 3500 Series rack architecture, it supports the 

system’s modular design philosophy—enabling seamless integration without requiring 

modifications to existing rack infrastructure. It is tailored for harsh industrial environments, adhering 

to the 3500 Series’ ruggedization standards for temperature, humidity, and electromagnetic 

interference (EMI) resistance. The module likely complements the 3500/42M’s monitoring 

capabilities (e.g., radial vibration, thrust position, velocity, acceleration) by providing specialized 

termination, isolation, or signal filtering features, ensuring accurate data acquisition for machinery 

health monitoring and alarm triggering.

Key Parameters

Product Type: I/O module accessory for 3500/42M Proximitor Seismic Monitor.

Core Function: Supplementary signal interface/conditioning for proximity, seismic, or Seismoprobe 

transducers; enhances connectivity between transducers and the 3500/42M monitor.

Compatibility: Exclusively compatible with Bently Nevada 3500/42M Proximitor Seismic Monitor and 

3500 Series racks; aligns with the system’s modular rack architecture.

Transducer Support: Designed for proximity probes, velocity transducers (Velomitor), acceleration 

transducers, and Seismoprobe devices (consistent with 3500/42M’s transducer compatibility).

Physical Dimensions: Conforms to 3500 Series I/O module form factor—estimated 241.3 mm × 24.4 

mm × 99.1 mm (9.50 in × 0.96 in × 3.90 in) (non-barrier configuration) or 241.3 mm × 24.4 mm × 

163.1 mm (9.50 in × 0.96 in × 6.42 in) (barrier configuration); weight estimated 0.20–0.46 kg (0.44–

1.01 lb).

Rack Space Requirement: 1 full-height rear slot (consistent with 3500 Series I/O module mounting 

standards).

Environmental Adaptability: Operating temperature range -30°C to +65°C (-22°F to +150°F) (non-

barrier) or 0°C to +65°C (32°F to +150°F) (barrier); storage temperature -40°C to +85°C (-40°F to 

+185°F); humidity resistance up to 95% non-condensing.

Signal Handling: Input impedance and sensitivity aligned with 3500/42M standards (e.g., 10 kΩ for 

proximity/acceleration inputs); supports transducer power supply integration (-24 Vdc, consistent 

with 3500 Series norms).

Certifications & Compliance: Inherits 3500 Series’ global compliance (FCC Part 15, EU EMC Directive 

2014/30/EU, EU LV Directive 2014/35/EU, RoHS Directive 2011/65/EU); compatible with hazardous 

area deployments when paired with approved 3500 Series barrier modules (Class I, Division 2/Zone 2).

Integration: Supports 3500 Rack Configuration Software for parameterization; works in tandem with 

the 3500/42M’s alarm and monitoring functions (alert/danger setpoints, static value reporting).

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