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Model: 621B40

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High frequency ceramic shear ICP® accelerometer, 10 mV/g, 1.6 to 30k Hz, titanium case, top exit, 5-44 connector, frequency sweep ISO 17025 accredited calibration

  • Sensitivity: (±10%) 10 mV/g (1.02 mV/(m/s²))
  • Frequency Range: (±3dB) 96 to 1800000 cpm (1.6 to 30000 Hz)
  • Sensing Element: Ceramic
  • Measurement Range: ±500 g (±4905 m/s²)
  • Weight: 0.10 oz (2.8 gm)

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Sensitivity (±10 %)10 mV/g1.02 mV/(m/s²)[1] 
Measurement Range±500 g±4905 m/s² 
Frequency Range (±10 %)204 to 1080000 cpm3.4 to 18000 Hz[3][5] 
Frequency Range (±3 dB)96 to 1800000 cpm1.6 to 30000 Hz[3][5] 
Resonant Frequency5100 kcpm85 kHz[4][6] 
Broadband Resolution (1 to 10000 Hz)1.2 mg rms1176 µm/sec2[4] 
Non-Linearity±1 %±1 %[2] 
Transverse Sensitivity≤5 %≤5 % 
Overload Limit (Shock)10000 g pk98100 m/s² pk 
Temperature Range-65 to +250 °F-54 to +121 °C 
Temperature ResponseSee Graph %/°FSee Graph %/°F[4] 
Settling Time (within 1% of bias)≤3.0 sec≤3.0 sec 
Discharge Time Constant≥0.1 sec≥0.1 sec 
Excitation Voltage18 to 28 VDC18 to 28 VDC 
Constant Current Excitation2 to 20 mA2 to 20 mA 
Output Impedance<100 Ohm<100 Ohm 
Output Bias Voltage8 to 12 VDC8 to 12 VDC 
Spectral Noise (10 Hz)100 µg/√Hz980 (µm/sec2)/√Hz[4] 
Spectral Noise (100 Hz)30 µg/√Hz294 (µm/sec2)/√Hz[4] 
Spectral Noise (1 kHz)10 µg/√Hz98.1 (µm/sec2)/√Hz[4] 
Size - Hex3/8 in9.6 mm 
Size - Height0.66 in16.8 mm 
Weight0.10 oz2.8 gm 
Mounting Thread5-40 MaleM3 x 0.50 Male 
Mounting Torque18 to 20 in-lb203 to 226 N-cm 
Sensing ElementCeramicCeramic 
Sensing GeometryShearShear 
Housing MaterialTitaniumTitanium 
SealingWelded HermeticWelded Hermetic 
Electrical Connector5-44 Coaxial Jack5-44 Coaxial Jack 
Electrical Connection PositionTopTop 

All specifications are at room temperature unless otherwise specified.


Product Notes
[1] Conversion Factor 1g = 9.81 m/s².
[2] Zero-based, least-squares, straight line method.
[3] The high frequency tolerance is accurate within ±10% of the specified frequency.
[4] Typical value.
[5] Frequency response with adhesive base.
[6] Mounted resonance (nominal) without magnet.
[7] See PCB Declaration of Conformance PS023 for details.
ICS-6NIST traceable single axis amplitude response calibration from 10 Hz to upper +/- 3dB point.(1)
Optional Versions:
(M) Metric Mount
Product Documents
Additional Downloads