Model 786A General Purpose Accelerometer

Brand: Wilcoxon Sensing Technologies
The top-exit Wilcoxon 100 mV/g broadband sensor provides long-lasting reliability with MTBF 25 years. The general-purpose accelerometer is ideal for monitoring machine vibration on a wide range of rotating equipment such as motors, pumps, fans, compressors, turbines and generators. 

The 316L stainless steel casing provides rugged durability for most extreme environments. The sensing element is housed in a case-isolated Faraday shield, providing maximum protection from ground loops and RF interference. Certified versions are available for use in hazardous areas.
Features
  • Case isolated
  • Hermetically sealed
  • ESD-protected
  • EMI/RFI shielded
  • Reverse wiring protection
  • Manufactured in an approved ISO 9001 facility
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The top-exit Wilcoxon 100 mV/g broadband sensor provides long-lasting reliability with MTBF 25 years. The general-purpose accelerometer is ideal for monitoring machine vibration on a wide range of rotating equipment such as motors, pumps, fans, compressors, turbines and generators. 

The 316L stainless steel casing provides rugged durability for most extreme environments. The sensing element is housed in a case-isolated Faraday shield, providing maximum protection from ground loops and RF interference. Certified versions are available for use in hazardous areas.
Features
  • Case isolated
  • Hermetically sealed
  • ESD-protected
  • EMI/RFI shielded
  • Reverse wiring protection
  • Manufactured in an approved ISO 9001 facility

Specifications

Approvals & Certifications

  • ATEX Ex Class I Division 1, (Zone 0/1), Class I Division 2, (Zone 2)
  • CE
  • CSA (C,US)

Approvals & Certifications

  • ISO 9001

Electrical Connectors

  • Cable (J10 / J9T2A)
  • Mating Connector: MIL Connector (MIL-5015 Style)

Element

  • Sensing Element Design: PZT, Shear

Enclosure, Body Material

  • 316L Stainless Steel

Frequency

  • Frequency Response (± 10%): 1 to 9,000 Hz
  • Frequency Response (± 3 dB): 0.5 to 14,000 Hz
  • Frequency Response (± 5%): 3 to 5,000 Hz
  • Resonance Frequency, Mounted, Nominal: 30 kHz

Mounting

  • 1/4-28 UNF Tapped Hole

Noise

  • Electrical Noise, Equivalent G, Nominal (Broadband: 2.5 Hz to 25 kHz): 700 µg
  • Electrical Noise, Equivalent G, Nominal (Spectral: 10 Hz): 10 µg/√Hz
  • Electrical Noise, Equivalent G, Nominal (Spectral: 100, 1,000 Hz): 5 µg/√Hz

Non-Linearity

  • Amplitude Non-Linearity: 1%

Output Impedence

  • Maximum 100 Ω

Power Requirement

  • 18-30 Vdc
  • Current Regulating Diode: 2-10 mA

Range

  • Acceleration Range, Vdc > 25 V: 80 G Peak

RFI/EMI Protection

  • EMI/RFI Shielded

Seal Type

  • Hermetic

Sensitivity

  • Base Strain Sensitivity, Maximum
  • Electromagnetic Sensitivity, Equivalent G, Maximum
  • Sensitivity, ± 5%, 25° C (77° F): 100 mV/g
  • Transverse Sensitivity: Maximum 5% of axial

Shock

  • Shock Limit: 5,000 G Peak

Temperature Range

  • -50° to 120° C (-58° to 248° F)

Vibration

  • Vibration Limit: 500 G Peak

Voltage

  • Bias Output Voltage: 12 Vdc

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