PCB-(M)639A91
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      PCB-(M)639A91

      • Triaxial industrial ICP® vibration sensor,
      • With drill through,
      • Measurement range 50 g,
      • Sensitivity 100 mV/g,
      • Frequency range 0.5... 10,000 Hz,
      • Frequency response calibration,
      • M12 connector on the side
      <? 100 M?/g
      Specifications
      Basic dataEnglish unitsSI units 
      Sensitivity (±10 %)10.2 mV/(m/s²)[1]
      Measuring range±50 g pk±491 m/s² pk 
      Frequency range (≤5 %)8.0... 5,500 Hz 
      Frequency range (± 3 dB)0.5... 10,000 Hz 
      Resonance frequency≥25. 000 Hz 
      Wide band resolution (1... 10,000 Hz)0.0003 g rms0.003 m/s² rms[2]
      Linearity error≤1 %[3]
      Transverse acceleration sensitivity≤5 % 
      Conditions of use
      Overload limit (shock)±5.000 g pk 
      Temperature range (operation)-65... 250 ° F-54... 121 ° C 
      Influence of temperature on Temperature coefficient of sensitivitySee curve below[2]
      Technical identificationdata
      power18... 30 V DC 
      constant power supply2... 20 mA 
      output impedance≤150 Ω 
      Bias voltage8... 12 V DC 
      discharging charging time constant≥0,32 s 
      settling time (on area within ±10% of the bias voltage)< 2s 
      Spectral noise (1 Hz)90 µg/√Hz883 (µm/s²)/√Hz[1] [2]
      spectral noise (10 Hz)20 µg/√Hz196 (µm/s²)/√Hz[1] [2]
      spectral noise (100 Hz)10 µg/√Hz98.1 (µm/s²)/√Hz[1] [2]
      Spectral noise (1,000 Hz)3.0 µg/√Hz29.4 (µm/s²)/√Hz[1] [2]
      Electrical insulation (housing)≥100 MΩ 
      physical properties
      Sensor elementceramic 
      Geometry of the sensor elementshear principle 
      Housing materialstainless steel 
      sealinghermetic 
      Size - height0.72 in18.3 mm 
      Size - length0.95 in24.1 mm 
      Size - width0.95 in24.1 mm 
      Dimensions (maximum)3.0 oz85 grams[2]
      Electrical connection4-pin M12 connector 
      Connecting positionOn the side 
      FixingThrough hole 
      Notes
      [1]Conversion factor 1 g = 9.81 m/s²  
      [2]Typically  
      [3]Zero-balance just, determined using the method of least squares  
      [4]Details: See PCBs Declaration of conformance PS023  
      Included accessories
      081A56Mounting screw 1/4 "-28 x 0.75"(1)
      ACS-1TFrequency response for Triaxial accelerometer, traceable to NIST, 10 Hz up to the upper 5%-Frequenz(1)
      ACS-4TLow frequency calibration (phase and amplitude)(1)
      PCB-(M)639A91

      Specific References

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      639A91_drawing.PDF

      Technical drawing

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      639A91_manual.PDF

      Manual

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      639A91_specs.PDF

      Specifications

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