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Model 780A-D2 Class I Division 2 Certified Accelerometer

Brand: Wilcoxon Sensing Technologies
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Wilcoxon’s top-exit 100 mV/g sensor is designed for monitoring areas with limited space. 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. A 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.

The 780A-D2 is classifed for usage in Class I Division 2/Zone 2 locations where ignitable gases, vapors or liquids are handled, processed or used but are not usually present during normal operation and can only escape through accidental rupture, breakdown or leaks.
Features
  • Lightweight for walkaround programs
  • Prevents ground loops in permanent mount applications with proper cabling
  • Can be submersed with proper connector
  • Hermetically sealed
  • ESD protected
  • Reverse wiring protection
  • Class I, Div 2/Zone 2 certified, non-incendive
  • Manufactured in an approved ISO 9001 facility
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Wilcoxon’s top-exit 100 mV/g sensor is designed for monitoring areas with limited space. 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. A 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.

The 780A-D2 is classifed for usage in Class I Division 2/Zone 2 locations where ignitable gases, vapors or liquids are handled, processed or used but are not usually present during normal operation and can only escape through accidental rupture, breakdown or leaks.
Features
  • Lightweight for walkaround programs
  • Prevents ground loops in permanent mount applications with proper cabling
  • Can be submersed with proper connector
  • Hermetically sealed
  • ESD protected
  • Reverse wiring protection
  • Class I, Div 2/Zone 2 certified, non-incendive
  • Manufactured in an approved ISO 9001 facility
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Specifications

Brand

Approvals & Certifications

  • ATEX Ex II 3 G Ex NA IIC T4 Gc
  • CE
  • CSA (C,US) Class I, Div. 2, Grade A, B, C, D, Class I, Zone 2 AEx, Ex NA II T4 Tamb: -50° to 120° C

Approvals & Certifications

  • ISO 9001

Circuit Protection

  • ESD Protection
  • Reverse Wiring Protection

Electrical Connectors

  • Cable (J10 / J9T2A)
  • Mating Connector: R6 Typical
  • Output Connector: 2-Pin, MIL-C-5015 Style

Element

  • Sensing Element Design: PZT, Shear

Enclosure, Body Material

  • 316L Stainless Steel

Environmental Protection

  • Non-Incendive

Frequency

  • Frequency Response (± 10 %): 0.7 to 9,000 Hz
  • Frequency Response (± 3 dB): 0.4 to 14,000 Hz
  • Frequency Response (± 5 %): 1 to 7,000 Hz
  • Resonance Frequency: 30 kHz

Mounting

  • 1/4-28 UNF Tapped Hole

Noise

  • Electrical Noise, Equivalent G, Nominal (Broadband: 2.5 Hz to 25 kHz): 500 µg
  • Electrical Noise, Equivalent G, Nominal (Spectral: 1,000 Hz): 2.0 µg/√Hz
  • Electrical Noise, Equivalent G, Nominal (Spectral: 10 Hz): 7 µg/√Hz
  • Electrical Noise, Equivalent G, Nominal (Spectral: 100): 4 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: 80 G Peak

Seal Type

  • Hermetic

Sensitivity

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