Bently Nevada 330425 Series Accelerometers – 330425-02-05

Name: Bently Nevada 330425 Series Accelerometers – 330425-02-05
Brand: Bently Nevada

Model: 330425-02-05

Brand Bently Nevada

Series 330425-02-05

Model 330425-02-05

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Product Details And Specifications

Bently Nevada 330425 Series Technical Notes

The Evolution of 330425 Architecture

The 330425 series was developed as part of Bently Nevada's second-generation seismic transducer platform, succeeding earlier piezoelectric assemblies that required external signal conditioning. The 330425 integrates a shear-mode piezoelectric sensing element with an internal impedance converter (IEPE/ICP-compatible), eliminating the need for a separate charge amplifier in most installation configurations. Early variants in the series used a two-wire constant-current excitation topology (18–30 VDC, 2–10 mA), which remains the dominant interface standard for the 3500/64 and 3500/65 monitor cards. Later production runs introduced enhanced EMI shielding and extended temperature ratings to accommodate installations in close proximity to furnace walls and steam headers. The series is fully compatible with the Bently Nevada System 1 software platform for data acquisition and trending. As of current production status, several sub-variants within the 330425 family are classified as mature or end-of-active-production by Baker Hughes (the parent entity post-acquisition), making third-party sourcing and certified refurbishment the primary supply channel for maintenance and capital spares programs.

330425 Full Catalog & Functionalities (SKU List)

The following models represent the documented range of the 330425 series. Each unit is a seismic accelerometer transducer assembly differentiated by cable length, connector type, mounting configuration, and temperature rating:

330425-02-05: IEPE accelerometer, 2-pin MIL connector, 5-meter integral cable, standard temperature range
330425-02-10: IEPE accelerometer, 2-pin MIL connector, 10-meter integral cable, standard temperature range
330425-02-20: IEPE accelerometer, 2-pin MIL connector, 20-meter integral cable, standard temperature range
330425-02-30: IEPE accelerometer, 2-pin MIL connector, 30-meter integral cable, standard temperature range
330425-04-05: IEPE accelerometer, 4-pin MIL connector, 5-meter cable, extended EMI shielding
330425-04-10: IEPE accelerometer, 4-pin MIL connector, 10-meter cable, extended EMI shielding
330425-04-20: IEPE accelerometer, 4-pin MIL connector, 20-meter cable, extended EMI shielding
330425-06-05: High-temperature IEPE accelerometer, 5-meter cable, rated to +121°C continuous
330425-06-10: High-temperature IEPE accelerometer, 10-meter cable, rated to +121°C continuous
330425-06-20: High-temperature IEPE accelerometer, 20-meter cable, rated to +121°C continuous
330425-08-05: Armored cable variant, 5-meter, stainless steel conduit jacket, hazardous area rated
330425-08-10: Armored cable variant, 10-meter, stainless steel conduit jacket, hazardous area rated
330425-08-20: Armored cable variant, 20-meter, stainless steel conduit jacket, hazardous area rated
330425-10-05: Side-exit connector configuration, 5-meter cable, low-profile mounting flange
330425-10-10: Side-exit connector configuration, 10-meter cable, low-profile mounting flange
330425-12-10: Dual-output IEPE accelerometer, 10-meter cable, redundant signal path for SIL-rated loops

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