Precision ICP Accelerometers Technical Specifications Model Number 621B40 623C00 623C01 Sensitivity 5 N A 10 mV g 100 mV g 1 0 mV m s2 2 10 2 mV m s2 Sensitivity 10 10 mV g N A N A 1 02 mV m s2 2 Measurement Range 500 g 500 g 50 g 4 905 m s 4 905 m s 490 m s Frequency Range 5 N A 144 to 480 000 cpm 2 4 Hz to 8 kHz 4 Frequency Range 10 204 to 1 080 000 cpm 102 to 600 000 cpm 3 4 Hz to 18 kHz 4 7 1 7 Hz to 10 kHz Frequency Range 3 dB 96 to 1 800 000 cpm 48 to 900 000 cpm 1 6 Hz to 30 kHz 4 7 0 8 Hz to 15 kHz Resonant Frequency 5 100 kcpm 2 400 kcpm 85 kHz 5 8 40 kHz 5 Broadband Resolution 1 to 10 kHz 1 2 mg 300 µg 100 µg 1 176 µm sec2 5 2 943 µm sec2 5 981 µm sec2 5 Non linearity 1 6 Transverse Sensitivity 5 Environmental Overload Limit Shock 10 000 g pk 5 000 g pk 98 100 m s2 pk 49 050 m s2 pk Temperature Range 65 to 250 F 54 to 121 C Enclosure Rating N A IP68 Electrical Settling Time within 1 of bias 3 0 sec 2 0 sec Discharge Time Constant 0 1 sec 0 2 sec Excitation Voltage 18 to 28 VDC Constant Current Excitation 2 to 20 mA Output Impedance 100 ohm Output Bias Voltage 8 to 12 VDC Spectral Noise 10 Hz 100 µg Hz 12 µg Hz 7 0 µg Hz 980 µm sec2 Hz 5 117 µm sec2 Hz 5 68 7 µm sec2 Hz 5 Spectral Noise 100 Hz 30 µg Hz 4 5 µg Hz 2 8 µg Hz 294 µm sec2 Hz 5 44 µm sec2 Hz 5 27 5 µm sec2 Hz Spectral Noise 1 kHz 10 µg Hz 2 7 µg Hz 0 5 µg Hz 98 1 µm sec2 Hz 5 26 5 µm sec2 Hz 5 4 9 µm sec2 Hz 5 Electrical Protection RFI ESD Electrical Isolation N A 108 ohm Size Hex 3 8 in 11 16 in 9 6 mm 17 5 mm Size Height 0 66 in 1 97 in 16 8 mm 50 mm Weight 0 10 oz 1 80 oz 2 8 gm 51 gm Mounting Thread 5 40 Male 1 4 28 Female 1 M3 x 0 50 Male Mounting Torque 18 to 20 in lb 2 to 5 ft lb 203 to 226 N cm 2 7 to 6 8 N m Sensing Element Ceramic Shear Housing Material Titanium Stainless Steel Sealing Welded Hermetic Electrical Connector 5 44 Coaxial Jack 2 pin MIL C 5015 Electrical Connection Position Top Supplied Accessories Model ICS 1 NIST traceable single axis amplitude response calibration from 600 cpm 10 Hz to upper 5 frequency Model 081A40 Mounting Stud 1 Model ICS 1 NIST traceable single axis amplitude response calibration from 600 cpm 10 Hz to upper 5 frequency 1 Notes All specifications are at room temperature unless otherwise specified 1 1 4 28 has no equivalent in S I units 2 Conversion Factor 1g 9 81 m s 3 For CE reference PCB Declaration of Conformance PS023 or PS061 for details 4 The high frequency tolerance is accurate within 10 of the specified frequency 5 Typical 6 Zero based least squares straight line method 7 Frequency response with adhesive base 8 Mounted resonance nominal without magnet Optional Versions EX ATEX Approved Intrinsically Safe Hazardous Area Approval For Models 623C00 623C01 CS Canadian Standards Association Approved Intrinsically Safe For Models 623C00 623C01 M Metric Mount For Models 621B40 623C00 623C01 visit us online at www imi sensors com 1 716 684 0003 93 Technical Specifications Model Number 621B40 623C00 623C01 Model Number 621B40 623C00 623C01 Performance Physical Accessories Cables Pages 146 159