Bently Nevada 330425-01-00 Accelerometer
مشخصات فنی
Manufacturer: Bently Nevada
Condition：New with Original Package
Product Type: Piezoelectric Accelerometers
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
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Product Description
The Bently Nevada 330425-01-00, also cataloged as the 330425 acceleration transducer, measures casing acceleration and converts mechanical vibration into an electrical signal for machinery condition monitoring. Its piezoelectric sensing element supports vibration analysis across a specified frequency range. The complete configuration is identified as 330425-01-00 in the supplied data.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330425-01-00 |
| Base Model | 330425 |
| Brand | Bently Nevada |
| Product Type | Piezoelectric Accelerometer |
| Measurement | Absolute acceleration |
| Sensitivity | 25 mV/g (2.5 mV/(m/s^2)) |
| Acceleration Range | 75 g peak |
| Frequency Response | 10 Hz to 15 kHz, +/- 3 dB |
| Frequency Response, Tighter Tolerance | 30 Hz to 10 kHz, +/- 10% |
| Amplitude Linearity | +/- 1% up to 75 g peak |
| Broadband Noise Floor | 0.01 g RMS, 10 Hz to 15 kHz |
| Mounted Resonant Frequency | Greater than 30 kHz |
| Transverse Sensitivity | Less than 5% of axial sensitivity |
| Input Voltage | -24 +/- 0.5 VDC |
| Bias Current | 2 mA nominal |
| Output Bias Voltage | -8.5 +/- 0.5 VDC |
| Grounding | Case isolated |
| Operating Temperature | -55 deg C to +121 deg C |
| Storage Temperature | -55 deg C to +121 deg C |
| Shock Survivability | 5,000 g peak maximum |
| Relative Humidity | 100% condensing, non-submerged |
| Case Material | 316L stainless steel |
| Connector | 3-pin MIL-C-5015 receptacle |
| Weight | 99 g typical, excluding cable |
Piezoelectric Vibration Measurement
The 330425 converts mechanical acceleration into an electrical output through a piezoelectric sensing element. The stated sensitivity of 25 mV/g defines the nominal relationship between input acceleration and output signal.
The frequency response determines the usable measurement bandwidth. The specified range extends from 10 Hz to 15 kHz at +/- 3 dB. The tighter amplitude tolerance applies from 30 Hz to 10 kHz.
For machinery monitoring, the acceleration signal can support vibration spectrum analysis, gear-mesh assessment, and investigation of bearing-related vibration components. Actual diagnostic capability depends on sensor mounting, signal conditioning, acquisition bandwidth, and analysis methods.
The sensor requires a compatible constant-current power source and signal-conditioning input. Verify the specified negative supply voltage, output bias, connector wiring, and input compatibility before connecting it to a monitoring channel.
TSI Signal Integration and Installation Verification
The 330425 measures absolute acceleration rather than shaft-relative displacement. It should not be treated as a direct replacement for an eddy-current proximity probe or a velocity transducer without verifying the monitoring system's measurement requirements.
When integrating the accelerometer into a Bently Nevada machinery monitoring system, verify the following:
- Signal scaling: Configure the acquisition channel for the specified 25 mV/g sensitivity and the required engineering units.
- Electrical compatibility: Confirm the constant-current excitation and negative supply requirements against the sensor documentation and signal conditioner.
- Ground isolation: Preserve the specified case isolation and check the grounding arrangement to avoid unintended ground loops.
- Signal interference: Route the sensor cable away from high-current switching conductors where practicable. Follow the monitoring system's shielding and grounding instructions.
- Measurement interpretation: Use acceleration-based processing unless the monitoring channel explicitly supports conversion to velocity or displacement.
Other Attributes
- Series: 24765 and 135613 Case Expansion Transducer Systems
- Country of Origin: USA
- Lead Time: In Stock, 2 Working Days
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