Model HT625B01 Product Type: Accelerometer, Vibration Sensor Model 625B01 w/ high temp. option (up to +325°F/163°C)   View  photo
PERFORMANCE ENGLISH SI Sensitivity  (± 5 %) 100 mV/g 10.2 mV/(m/s²) [4] Measurement Range ± 50 g ± 490 m/s² Frequency Range  (± 5 %) 30 to 240,000 cpm 0.5 to 4000 Hz [5][6] Frequency Range  (± 10 %) 22 to 360,000 cpm 0.37 to 6000 Hz Frequency Range  (± 3 dB) 12 to 600,000 cpm 0.2 to 10,000 Hz Resonant Frequency 1380 kcpm 23 kHz [3] Broadband Resolution  (1 to 10,000 Hz) 200 µg 1962 µm/s² [3] Non-Linearity ± 1 % ± 1 % [7] Transverse Sensitivity ≤ 5 % ≤ 5 % ENVIRONMENTAL     Overload Limit  (Shock) 2000 g pk 19,620 m/s² pk Temperature Range -65 to +325 °F -54 to +163 °C Temperature Response See Graph See Graph [3] ELECTRICAL     Settling Time  (within 1% of bias) ≤ 8 sec ≤ 8 sec Discharge Time Constant ≥ 1.0 sec ≥ 1.0 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Constant Current Excitation 2 to 10 mA 2 to 10 mA [1] Output Impedance <250 ohm <250 ohm Output Bias Voltage  (at 4 mA) 8 to 15 VDC 8 to 15 VDC [2] Spectral Noise  (10 Hz) 10 µg/√Hz 98.1 (µm/s²)/√Hz [3] Spectral Noise  (100 Hz) 6.0 µg/√Hz 58.9 (µm/s²)/√Hz [3] Spectral Noise  (1 kHz) 1.5 µg/√Hz 14.7 (µm/s²)/√Hz [3] Electrical Isolation >108 ohm >108 ohm PHYSICAL     Size (Diameter x Height) 1.36 in x 1.13 in 35 mm x 29 mm Weight 5.1 oz 145 gm Mounting Thread 1/4-28 UNF No Metric Equivalent [8] Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element Ceramic Ceramic Sensing Geometry Shear Shear Housing Material Stainless Steel Stainless Steel Sealing Welded Hermetic Welded Hermetic Electrical Connector MIL-C-5015 MIL-C-5015 Electrical Connection Position Side Side SUPPLIED ACCESSORIES: Model 081A73 Captive mounting bolt 1/4-28 x 1.34" (1) Model ICS-1 NIST-traceable single-axis amplitude response calibration from 600 cpm (10 Hz) to upper 5% frequency (1) OPTIONAL VERSIONS M - Metric Mount Supplied Accessory : Model M081A73 Mounting Bolt M6 x 1.00 (1) replaces Model 081A73 All specifications are at room temperature unless otherwise specified. NOTES: [1] Maximum of 4 mA is recommended at temperatures above 250 °F (121 °C). [2] Bias voltage increases with higher constant current. [3] Typical. [4] Conversion Factor 1g = 9.81 m/s². [5] 1Hz = 60 cpm (cycles per minute). [6] The high frequency tolerance is accurate within ±10% of the specified frequency. [7] Zero-based, least-squares, straight line method. [8] 1/4-28 has no equivalent in S.I. units.
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