Model 780FM-2-J88C Compact Sensor with Integral Cable

Brand: Wilcoxon Sensing Technologies

The top-exit Wilcoxon 100 mV/g integral cable sensor is designed for walkaround predictive maintenance applications. 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 sensing element is housed in a case-isolated Faraday shield, providing maximum protection from RF interference. BNC termination provides easy connection to portable data collectors or handheld vibration meters. 

A 316L stainless steel casing provides rugged durability for most extreme environments. The durable J88C coiled cable stretches up to six feet for quick and easy monitoring. An included twopole, 40 pound force pull-strength magnet provides maximum flexibility in the field.
Features
  • Designed for walkaround programs
  • Rugged design
  • Corrosion resistant
  • Hermetically sealed
  • Case isolated
  • ESD-protected
  • Manufactured in an approved ISO 9001 facility

Specifications

Approvals & Certifications

  • CE

Approvals & Certifications

  • ISO 9001

Cable Length

  • Approximately Extended Length of Coiled Cable: 6 feet (1.828 metres)

Circuit Protection

  • ESD Protection

Electrical Connectors

  • BNC Connector
  • Integral Cable (J88C)

Element

  • Sensing Element Design: PZT, Shear

Enclosure, Body Material

  • 316L Stainless Steel

Environmental Protection

  • Corrosion-Proof

Frequency

  • Frequency Response (± 10 %): 0.7 to 8,000 Hz
  • Frequency Response (± 3 dB): 0.4 to 12,000 Hz
  • Frequency Response (± 5 %): 1 to 6,000 Hz
  • Resonance Frequency: 30 kHz

Mounting

  • 1/4-28 UNF Tapped Hole

Noise

  • Electrical Noise, Equivalent G (Broadband: 2.5 Hz to 25 kHz): 500 µg
  • Electrical Noise, Equivalent G (Spectral: 1,000 Hz): 2 μg/√Hz
  • Electrical Noise, Equivalent G (Spectral: 10 Hz): 7 μg/√Hz
  • Electrical Noise, Equivalent G (Spectral: 100 Hz): 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, 25° C (77° F): 100 mV/g
  • Transverse Sensitivity: 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

  • Cable: -40° to 80° C (-40° to 176° F)
  • Sensor Head: -50° to 120° C (-58° to 248° F)

Vibration

  • Vibration Limit: 500 G Peak

Voltage

  • Bias Output Voltage: 12 Vdc
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