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Home | Piezoelectric Accelerometers | Special Application Piezoelectric Accelerometers

904

  • Vibration Monitoring, Vibration Level Controls, Automatic Shutdown
  • High Capacity (100 pC/g)
  • Case Grounded
  • 3/8-24 Integral Stud

The Models 904 and 904-HT Piezoelectric Accelerometers are primarily designed for industrial applications where monitoring and measurement of vibration levels are desirable but only a minimum of electronic equipment is available. The internal construction of the piezoelectric seismic system ensures that the units have no discernible spurious response to mounting torque, body strains, cable vibration, cable whip, pressure variations and most heat transients.

The stainless steel housing provides an environmentally rugged unit, while the epoxy sealoffers protection against industrial environments. Its grounded case construction provides tight mechanical coupling which yields accurate, wideband shock and vibration data. These accelerometers feature a 10-32 top connector and are provided with a 10" low-noise coaxial cable. The Model 904-HT will operate in environments up to +500 Deg. F.

Notes:
At +75 Deg F, 10g Peak, 100Hz; Lower Frequency Limit is Determined by Associated Electronics
Referenced to Sensitivity @ 100 Hz.
With Connector Protected or Sealed, Unit is Epoxy Sealed.

Specifications

Charge Sensitivity 100 +/-10 pC/g
Frequency Linearity +/-5% Max 1 Hz To 2,000 Hz
Resonant Frequency 30 KHz, Min.
Amplitude Linearity +/-1.0% (BFSL) / 500 g
Capacitance 9,000 +/-100 pF
Insulation Resistance 10,000 M Ohm Min, 50 VDC Test
Isolation Resistance 0 (Case Grounded)
Transverse Sensitivity 5% Max
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