Bently Nevada 330425-01-05 Accelerometer
A 75 g peak, 25 mV/g casing accelerometer with a 1/4-28 UNF integral stud and multiple agency approvals.
Product Overview
330425-01-05 combines the higher 75 g peak range of the Bently Nevada 330425 platform with a 1/4-28 UNF mounting stud and the multiple-approval ordering option. It is intended for critical casing-acceleration measurements where the certified variant is required.
The sensor retains the family 25 mV/g sensitivity, broad frequency response, isolated stainless-steel case and three-pin connector. Channel scaling and hazardous-area loop documentation must match this exact suffix.
Performance
- Measures high-range casing acceleration with 25 mV/g nominal sensitivity.
- Supports critical machinery and gear-mesh monitoring up to a 75 g peak measurement range.
- Provides a 1/4-28 UNF integral stud for imperial mounting points.
- Carries the multiple-approval configuration for applicable certified installations.
Technical Details
| Manufacturer | Bently Nevada, a Baker Hughes business |
|---|---|
| Model | 330425-01-05 |
| Sensitivity | 25 mV/g ±5% |
| Peak Range | 75 g from 10 Hz to 15 kHz |
| Frequency Response | 10 Hz to 15 kHz ±3 dB |
| Amplitude Linearity | ±1% to 75 g peak |
| Power Input | -24 ±0.5 V DC |
| Bias Current | 2 mA nominal |
| Mounting Thread | Integral 1/4-28 UNF stud |
| Approval Option | Multiple approvals: CSA, ATEX and IECEx |
| Connector | Three-pin MIL-C-5015 receptacle |
| Operating Temperature | -55 to +121 °C |
System Integration
- Prepare the 1/4-28 mounting point and torque 330425-01-05 to 4.1 N·m on a rigid casing surface.
- Validate the applicable approval marking, entity parameters, associated barrier and field wiring against the site classification.
- Use the correct three-conductor cable and seal the connector while maintaining case isolation.
- Configure the monitor for 25 mV/g and revalidate alarm, trip and voting logic.
Applications
- Certified high-range acceleration loops
- Critical compressors and gearboxes
- Hazardous-area casing monitoring
FAQ
What does -01-05 specify on 330425-01-05?
The 01 option is the integral 1/4-28 UNF stud and 05 is the multiple-approval configuration.
Can 330425-01-05 replace 330425-01-00?
Electrical performance and stud match, but approval requirements and installed-loop documentation must be reviewed before substitution.
Can 330425-01-05 replace a 100 mV/g accelerometer?
Not directly. Its 25 mV/g sensitivity requires different monitor scaling and a review of alarms, trips and signal range.
What approval checks are needed for 330425-01-05?
Confirm the nameplate marking, site zone or division, entity parameters, barrier, cable and installation drawing for the full loop.
What should be supplied for a 330425-01-05 quotation?
Provide the exact model, monitor and barrier details, cable part and length, mounting location and required site approvals.
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