4623 Series Accelerometer

The Model 4623 is a low frequency DC response accelerometer offering outstanding performance over a wide operating temperature range.

4623 Series Accelerometer

Description: The Model 4623 is a low frequency DC response accelerometer offering outstanding performance over a wide operating temperature range. The accelerometer is available in ranges from ±2 to ±500g and incorporates an EMI/EMC protection circuitry for harsh installations. The output is signal conditioned to provide a low noise amplified signal. The model 4623 incorporates a PFA insulated cable with a rugged strain relief designed for demanding applications.

Features:• ±2g to ±500g Dynamic Range
• Signal Conditioned Output
• EMI/EMC Protection Circuit
• Gas Damping
• Integral Strain Relief
• DC, Low Frequency Response
• 7 to 30Vdc Excitation Voltage
• High Sensitivity
• MEMS Accelerometer

Parameters
DYNAMIC Notes
Range (g) ±2 ±5 ±10 ±25 ±50 ±100 ±250 ±500
Sensitivity (mV/g) 1000 400 200 80 40 20 10 4 ±10%
Frequency Response (Hz) 0-150 0-150 0-200 0-400 0-600 0-1000 0-1000 0-1000 ±5%1
Frequency Response (Hz) 0-400 0-400 0-550 0-800 0-100 0-1400 0-1500 0-1500 ±1dB
Natural Frequency (Hz) 700 800 1000 1500 4000 6000 8000 10000
Non-Linearity (%FSO) ±1.0 ±1.0 ±1.0 ±1.0 ±1.0 ±1.0 ±1.0 ±1.0
Transverse Sensitivity (%) <3 <3 <3 <3 <3 <3 <3 <3 <1 Typical
Damping Ratio 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.5
Shock Limit (g) 5000 5000 5000 5000 5000 5000 5000 5000
Residual Noise (µV RMS) 500 300 300 350 400 400 400 400 Passband
Spectral Noise (µg/√Hz) 35 38 75 219 316 516 1581 2582 Passband
ELECTRICAL
Zero Acceleration Output (mV) ±50 Differential
Excitation Voltage (Vdc) 7 to 30
Excitation Current (mA) <5
Bias Voltage (Vdc) 2.5
Output Resistance (Ω) <100
Insulation Resistance (MΩ) >100 @100Vdc
Turn On Time (msec) <100
Ground Isolation Isolated from Mounting Surface
ENVIRONMENTAL
Thermal Zero Shift (%FSO/°C) ±0.008 Typical
Thermal Sensitivity Shift (%/°C) ±0.010 Typical
Operating Temperature (°C) -55 to 125
Compensated Temperature (°C) -40 to 100
Humidity Epoxy Encapsulated, IP65
PHYSICAL
Case Material Anodized Aluminum
Cable 4x #26 AWG Conductors, PFA Insulated, Braided Shield, PFA Jacket
Weight (grams) 14
Mounting 2x #4 or M3 Screws
Mounting Torque 6 lb-in (0.7 N-m)

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