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Model 893V Piezoelectric Velocity Sensor

Brand: Wilcoxon Sensing Technologies
The 893V uses the industry standard 2-wire voltage transmission technique with a constant current supply. Thanks to the sensor’s isolated ground and internal shield, no ground loops or frame voltages are present to disturb the measurement. The rugged sensor has a simpler design (fewer components) than typical velocity sensors, making it inherently reliable. 

Further, the 893V is housed in a hermetically sealed and corrosion resistant case, making the sensor suitable for use with machinery in harsh industrial environments.
Features
  • Ultra low-noise electronics for clear signals at very low vibration levels
  • Tuned bandpass flatness for repeatability
  • Eliminates distortion caused by high frequency signals
  • Hermetically sealed
  • Manufactured in an approved ISO 9001 facility
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The 893V uses the industry standard 2-wire voltage transmission technique with a constant current supply. Thanks to the sensor’s isolated ground and internal shield, no ground loops or frame voltages are present to disturb the measurement. The rugged sensor has a simpler design (fewer components) than typical velocity sensors, making it inherently reliable. 

Further, the 893V is housed in a hermetically sealed and corrosion resistant case, making the sensor suitable for use with machinery in harsh industrial environments.
Features
  • Ultra low-noise electronics for clear signals at very low vibration levels
  • Tuned bandpass flatness for repeatability
  • Eliminates distortion caused by high frequency signals
  • Hermetically sealed
  • Manufactured in an approved ISO 9001 facility

Specifications

Approvals & Certifications

  • ISO 9001

Approvals & Certifications

  • CE

Electrical Connectors

  • Mating: MIL Connector (MIL-C-5015 Style)
  • Output Connector: 2-Pin, MIL-C-5015 Style
  • Twisted Shielded-pair Cable

Enclosure, Body Material

  • 316L Stainless Steel

Frequency

  • Frequency Response (± 10%): 6.0 to 2,500 Hz
  • Frequency Response (± 3 dB): 4.5 to 5,000 Hz
  • Resonance Frequency, Mounted, Nominal: 15 kHz

Mounting

  • 1/4-28 Tapped Hole

Noise

  • Electrical Noise, Equivalent In/sec (Broadband: 2.5 Hz to 25 kHz): 150 µin/sec
  • Electrical Noise, Equivalent In/sec (Spectral: 1,000 Hz): 1.0 µin/sec/√Hz
  • Electrical Noise, Equivalent In/sec (Spectral: 10 Hz): 25 µin/sec/√Hz
  • Electrical Noise, Equivalent In/sec (Spectral: 100 Hz): 1.5 µin/sec/√Hz

Non-Linearity

  • Amplitude Non-Linearity: 2%

Output Impedence

  • Maximum 80 Ω

Power Requirement

  • Input Supply Current: 2-10 mA
  • Supply Voltage for Current Source: 22-28 Vdc

Range

  • Velocity Range: 50 In/sec Peak

Seal Type

  • Hermetic

Sensitivity

  • Base Strain Sensitivity: 0.0005 In/sec/μstrain
  • Electromagnetic Sensitivity, Equivalent In/sec: 50 µin/sec/Gauss
  • Sensitivity, ± 5%, 25° C (77° F): 100 mV/inch/sec
  • 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: 2,500 G Peak

Voltage

  • Bias Output Voltage, Nominal: 12 Vdc