AS3100S2-Z2 Vibration Sensor Bently Nevada Case Mounted Accelerometer

Product Overview

The AS3100S2-Z2 represents the pinnacle of industrial vibration sensing from Bently Nevada. This AS3100 Series case-mounted accelerometer utilizes a PZT ceramic shear design to deliver high-fidelity data. Engineered for long-term survival, the hermetically sealed 316L stainless steel housing ensures data integrity even in chemically harsh and high-shock environments.

Technical Configuration

• Model: AS3100S2-Z2
  • Sensing Element: PZT Ceramic / Shear design
  • Sensitivity: 100 mV/g (± 5% @ 25°C)
  • Frequency Range: 1.0 – 5,000 Hz (±10%)
  • Resonant Frequency: 22 kHz
  • Acceleration Limit: 80 g peak
  • Mounting: 1/4-28 UNF tapped hole

Environmental & Electrical Specifications

• Operating Temp: -55°C to +120°C
• Shock Rating: 5,000 g peak survival
• Bias Voltage: 12 Vdc nominal
• Broadband Noise: 700 μg (2.5 Hz to 25 kHz)
• Output Impedance: ≤ 100 Ω
• Sealing: Hermetic IP-rated 316L Stainless Steel

Global PLC Spare HUB's Insight

As evaluated by Global PLC Spare HUB, the AS3100S2-Z2 is optimized for balance-of-plant machinery protection. We recommend this sensor for monitoring cooling tower fans, reciprocating compressors, and industrial gearboxes. Its low base strain sensitivity makes it ideal for mounting on thin-walled machine casings where mounting-induced distortion often degrades standard sensor signals.

Professional FAQ

Q: How does base strain impact my measurement accuracy with this unit?
A: The unit features a specialized shear-mode design, limiting base strain sensitivity to 0.002 g/μstrain, ensuring your vibration data remains focused on machine dynamics.

Q: What is the benefit of the side-exit MIL-C-5015 connector?
A: It provides superior clearance in cramped machinery bays, allowing for secure cable routing without violating the minimum bend radius of shielded cables.

Q: Can I use this sensor in a zone with electromagnetic interference (EMI)?
A: Yes. The AS3100S2-Z2 features internal shielding and case isolation, effectively mitigating EMI and common ground loop issues.

Q: What is the optimal cable length for this accelerometer?
A: For best noise immunity, keep your shielded, twisted-pair cable runs below 100 feet. Always ground the shield at the signal processing end.

Q: Selection Guide: When is 100 mV/g sensitivity ideal?
A: This sensitivity is the industry standard for general-purpose monitoring, providing the best trade-off between signal-to-noise ratio and wide dynamic range.

Logistics & Quality Assurance

• Shipping: Expedited global transit via FedEx, UPS, and DHL.
• Dispatch: Ready for 24-48 hour fulfillment.
• Warranty: Industry-standard 12-month replacement coverage on all original units.

Maintenance & Diagnostic Tips

For optimal diagnostic capability, conduct a periodic 1 kHz calibration check. If the bias output voltage deviates significantly from 12 Vdc, it may indicate internal damage or cable oxidation. Ensure the mounting surface is spot-faced and clean to maintain a high-frequency response up to the 5,000 Hz threshold.

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