Wilcoxon Sensing Technologies Intrinsically Safe Accelerometer, Model 786F-IS
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Model 786F-IS Intrinsically Safe Accelerometer

Brand: Wilcoxon Sensing Technologies
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Wilcoxon’s top-exit 100 mV/g broadband sensor is ideal for monitoring machine vibration on a wide range of rotating equipment including motors, pumps, fans, compressors, turbines and generators. 316L stainless steel casing provides rugged durability for the most extreme environments. The sensing element is housed in a case-isolated Faraday shield, providing maximum protection from ground loops and RF interference. 

The 786F-IS sensor is classifed for usage in Class I Division 1/Zone 0/1 locations where ignitable concentrations of flammable gases, vapors or liquids are present continuously under normal operating conditions.
Features
  • Integral cable
  • Class I, Div 1/Zone 0/1 certified
  • Hermetically sealed
  • ESD-protected
  • Reverse wiring protection
  • Manufactured in an approved ISO 9001 facility

Specifications

Brand

Approvals & Certifications

  • ATEX II 1 G Ex ia IIC T4 Ga -50° C ≤ Ta ≤ 120° C
  • CE
  • CSA (C,US) Class I, Div. 1, Grade A, B, C, D, Class II, Div. 1, Groups E, F, G, Class III, Div. 1, Class I, Zone 0, Ex ia IIC T4 Class I, Zone 0, AEx ia IIC T4 Tamb: -50° to 120° C
  • IEC, IECEx

Circuit Protection

  • ESD Protection
  • Reverse Wiring Protection

Electrical Connectors

  • Integral Cable (J9T2A, 16 feet, Blunt Cut)

Element

  • Sensing Element Design: PZT, Shear

Enclosure, Body Material

  • 316L Stainless Steel

Environmental Protection

  • IP68

Frequency

  • Frequency Response (± 10 %): 1 to 8,000 Hz
  • Frequency Response (± 3 dB): 0.5 to 13,000 Hz
  • Resonance Frequency: 30 kHz

Mounting

  • 1/4-28 UNF Tapped Hole

Noise

  • Electrical Noise, Equivalent G (Broadband: 2.5 Hz to 25 kHz): 700 µg
  • Electrical Noise, Equivalent G (Spectral: 10 Hz): 10 µg/√Hz
  • Electrical Noise, Equivalent G (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 > 22 V: 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 Sensitivit: Max. 5 % of axial

Shock

  • Shock Limit: 5,000 G Peak

Static Pressure

  • Hydrostatic Pressure - psi: 100 (kPa: 689.5, bar: 6.89)

Temperature Range

  • -50° to 120° C (-58° to 248° F)

Vibration

  • Vibration Limit: 500 G Peak

Voltage

  • Bias Output Voltage: 12 Vdc

Documentation

Data Sheets

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