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Model 786-500-M12-IS Low-Frequency Intrinsically Safe Accelerometer

Brand: Wilcoxon Sensing Technologies
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Wilcoxon’s top-exit broadband sensor is certified for usage in hazardous areas. The high-sensitivity accelerometer offers an interior sensing element capable of producing 500 mV/g for clear signals at low vibration levels. The low-end frequency response makes it ideal for slow-speed applications such as wind turbine generators and cooling towers. A high top-end frequency response offers clear signals for early bearing fault detection, gearbox wear, and other high-speed applications. The sensor is supplied with the popular M12 connector.

The 786-500-M12-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
  • High sensitivity
  • Extended low frequency response
  • Clear signals at low vibration levels
  • Class I, Div 1/Zone 0/1 certified
  • Comes with industry popular M12 connector
  • Hermetically sealed
  • ESD-protected
  • Reverse wiring protection
  • Manufactured in an approved ISO 9001 facility
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Wilcoxon’s top-exit broadband sensor is certified for usage in hazardous areas. The high-sensitivity accelerometer offers an interior sensing element capable of producing 500 mV/g for clear signals at low vibration levels. The low-end frequency response makes it ideal for slow-speed applications such as wind turbine generators and cooling towers. A high top-end frequency response offers clear signals for early bearing fault detection, gearbox wear, and other high-speed applications. The sensor is supplied with the popular M12 connector.

The 786-500-M12-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
  • High sensitivity
  • Extended low frequency response
  • Clear signals at low vibration levels
  • Class I, Div 1/Zone 0/1 certified
  • Comes with industry popular M12 connector
  • Hermetically sealed
  • ESD-protected
  • Reverse wiring protection
  • Manufactured in an approved ISO 9001 facility
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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 AEx, Ex ia IIC T4 Tamb: -50° C to 120° C
  • IEC, IECEx

Approvals & Certifications

  • ISO 9001

Circuit Protection

  • ESD Protection
  • Reverse Wiring Protection

Electrical Connectors

  • Output Connector: M12 Style, 4-Pin

Element

  • Sensing Element Design: PZT, Shear

Enclosure, Body Material

  • 316L Stainless Steel

Frequency

  • Frequency Response (± 10 %): 0.5 to 5,000 Hz
  • Frequency Response (± 3 dB): 0.2 to 10,000 Hz
  • Frequency Response (± 5 %): 0.7 to 5,000 Hz
  • Resonance Frequency: 30 kHz

Mounting

  • 1/4-28 UNF Tapped Hole

Noise

  • Electrical Noise, Equivalent G (Broadband: 2.5 Hz to 25 kHz): 250 µg
  • Electrical Noise, Equivalent G (Spectral: 10 Hz): 2.5 µg/√Hz
  • Electrical Noise, Equivalent G (Spectral: 100, 1,000 Hz): 1.5 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: 10 G Peak

Seal Type

  • Hermetic

Sensitivity

  • Base Strain Sensitivity, Max.
  • Electromagnetic Sensitivity, Equivalent G, Max.
  • Sensitivity, ± 5 %, 25° C (77° F): 500 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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