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high freq. laboratory ceramic shear icp® accel, 100 mv/g, 0.8 to 20k hz, 316l ss case, side exit, 10-32 conn., frequency sweep iso 17025 accredited calibration

ACCELEROMETER

Model 621B51

High freq. laboratory ceramic shear ICP® accel, 100 mV/g, 0.8 to 20k Hz, 316L SS case, side exit, 10-32 conn., frequency sweep ISO 17025 accredited calibration

Sensitivity: (±5%) 100 mV/g (10.2 mV/(m/s²))
Frequency Range: (±3dB)48 to 1200000 cpm (0.8 to 20000 Hz)
Sensing Element: Ceramic
Measurement Range: ±50 g (±490 m/s²)
Weight: 1.06 oz (30 gm)

Specification 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.
[5] Typical value.
[4] Typical.
[6] 1/4-28 has no equivalent in S.I. units.

	English:	SI:
Performance
Sensitivity (±5 %)	100 mV/g	10.2 mV/(m/s²)	[1]
Measurement Range	±50 g	±490 m/s²
Frequency Range (±5 %)	144 to 600000 cpm	2.4 to 10000 Hz	[3]
Frequency Range (±10 %)	102 to 900000 cpm	1.7 to 15000 Hz
Frequency Range (±3 dB)	48 to 1200000 cpm	0.8 to 20000 Hz
Resonant Frequency	2100 kcpm	35 kHz
Non-Linearity	±1 %	±1 %	[2]
Transverse Sensitivity	≤5 %	≤5 %
Environmental
Overload Limit (Shock)	5000 g pk	49050 m/s² pk
Temperature Range	-65 to +250 °F	-54 to +121 °C
Temperature Response	See Graph %/°F	See Graph %/°F	[4]
Electrical
Settling Time (within 1% of bias)	≤5.0 sec	≤5.0 sec
Discharge Time Constant	≥0.2 sec	≥0.2 sec
Excitation Voltage	18 to 28 VDC	18 to 28 VDC
Constant Current Excitation	2 to 20 mA	2 to 20 mA
Output Impedance	<150 Ohm	<150 Ohm
Output Bias Voltage	8 to 12 VDC	8 to 12 VDC
Broadband Electrical Noise (1 to 10000 Hz)	100 µV	981 µm/sec²	[4]
Spectral Noise (10 Hz)	30 µg/√Hz	294 (µm/sec²)/√Hz	[5]
Spectral Noise (100 Hz)	10 µg/√Hz	98.1 (µm/sec²)/√Hz	[4]
Spectral Noise (1 kHz)	5 µg/√Hz	49.5 (µm/sec²)/√Hz	[5]
Electrical Isolation (Base)	>100000000 Ohm	>100000000 Ohm
Physical
Size - Hex	11/16 in	17.5 mm
Size - Height	1.03 in	26.2 mm
Weight	1.06 oz	30 gm
Mounting Thread	10-32 Female	10-32 Female	[6]
Mounting Torque	10 to 20 in-lb	1.13 to 2.26 Nm
Sensing Element	Ceramic	Ceramic
Sensing Geometry	Shear	Shear
Housing Material	Stainless Steel	Stainless Steel
Sealing	Welded Hermetic	Welded Hermetic
Electrical Connector	10-32 Coaxial Jack	10-32 Coaxial Jack
Electrical Connection Position	Side	Side