86517-xx-xx-01-02 Vibration Transmitter Bently Nevada Charge Converter

High-Precision Signal Processing Overview

• The 86517 Accelerometer Interface Module is a sophisticated signal conditioning unit developed by Bently Nevada.
• This 86517 module converts high-impedance charge inputs into stable, buffered voltage signals.
• It provides dual-mode monitoring, delivering both scaled acceleration and integrated velocity outputs.
• The 86517 ensures high-fidelity data transmission over long cable distances up to 305 meters.

Configuration Breakdown & Hierarchy

• 86517 — Accelerometer Interface Module Base
  • -AXX [Input Sensitivity]: 01 (50 pC/g) or 02 (100 pC/g)
  • -BXX [Filter Corners]: 01 (25/350 Hz), 02 (100/560 Hz), or 03 (40/300 Hz)
  • -CXX [DC Bias]: 01 (-10 Vdc Fixed)
  • -DXX [Approval]: 02 (CENELEC/SIRA Certified)

Technical Specification Matrix

• Manufacturer: Bently Nevada
• Model: 86517-xx-xx-01-02 MOD159840-01
• Supply Voltage: -23 Vdc to -26 Vdc
• Acceleration Output: 10 mV/g peak
• Velocity Output: 100 mV/in/s peak (3.93 mV/mm/s)
• Filter Type: 6th Order Butterworth (-36 dB/octave)
• Input Connector: MS-3112-8-3P
• Dimensions: 76.2mm H x 82.6mm W x 139.7mm L

Global PLC Spare HUB's Insight

• The 86517 is the ideal solution for high-temperature zones where standard internal-electronics sensors fail.
• By separating the charge amplifier, the 86517 allows the raw sensor to withstand heat while maintaining a clean signal.
• The 12th-order filtering provides exceptional noise rejection, making it a favorite for steam turbine monitoring.

Diagnostic Capabilities & Application Scope

• Overload Protection: Handles up to 100,000 pC peaks without clipping.
• Health Diagnostics: Integrated -10 Vdc bias allows the monitor to verify system "OK" status continuously.
• Suitable Equipment: Steam turbines, reciprocating compressors, and boiler feed pumps.
• Application Scenarios: Absolute casing vibration and velocity-based machinery protection.

Procurement & Logistics Strategy

• Dispatch: Global shipping within 24-48 hours via FedEx, UPS, or DHL.
• Warranty: Includes a full 12-month technical quality guarantee.
• Condition: Guaranteed genuine Bently Nevada hardware in factory packaging.

Professional FAQ & Selection Guide

• How do I choose the correct B-filter option?
• Select based on machine speed; B01 (25-350Hz) is the standard for 1800/3600 RPM industrial machinery.
• Can I use standard cable between the sensor and 86517?
• No, you must use low-noise charge cables (e.g., 45358 series) to prevent triboelectric interference.
• What is the maximum cable distance to the monitor?
• The output buffer supports up to 1,000 feet (305 meters) using 18-22 AWG shielded cable.
• Is the bias voltage adjustable?
• No, the 86517 uses a fixed -10 Vdc bias for standard system compatibility.
• What happens if cable capacitance is too high?
• Capacitance over 8300 pF will cause high-frequency signal loss and potential amplifier instability.

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