MODEL 3255A ACCELEROMETER SPECIFICATIONS PC Board Mountable Accelerometer Amplified Output Temperature Compensated High Over-Range Protection The Model 3255A is a signal conditioned board mountable MEMS accelerometer available in 25g to 500g ranges. The package can be mounted in one of two orientations, allowing the measurement axis to be either parallel or perpendicular to the mounting surface without the use of costly brackets. The accelerometer incorporates integral temperature compensation and offers a flat frequency response from DC to 1500Hz dimensions FEATURES 25g to 500g Ranges Three Axis Mounting Options Surface Mount Package DC Response, Gas Damping Hermetically Sealed 5Vdc Excitation APPLICATIONS Impact & Shock Testing Vibration & Shock Monitoring Embedded Applications Transportation Measurements SENSOR SOLUTIONS /// Model 3255A Rev D 07/2017 Page 1 MODEL 3255A ACCELEROMETER PERFORMANCE SPECIFICATIONS All values are typical at +24C, 80Hz and 5Vdc excitation unless otherwise stated. Measurement Specialties reserves the right to update and change these specifications without notice. Parameters DYNAMIC Notes Range (g) 25 50 100 250 500 1 Sensitivity (mV/g) 10% 80.0 40.0 20.0 8.0 4.0 5Vdc Excitation Frequency Response (Hz) 0-800 0-1000 0-1200 0-1500 0-1500 5% Natural Frequency (Hz) 4000 4000 6000 8000 10000 Non-Linearity (%FSO) 0.5 0.5 0.5 0.5 0.5 Transverse Sensitivity (%) <3 <3 <3 <3 <3 <1 Typical Damping Ratio 0.7 0.7 0.7 0.6 0.5 Typical Shock Limit (g) 5000 5000 5000 5000 5000 ELECTRICAL Zero Acceleration Output (V) 2.50.10 2.50.10 2.50.10 2.50.10 2.50.10 Single-Ended 1 Excitation Voltage (Vdc) 2.7 to 5.5 2.7 to 5.5 2.7 to 5.5 2.7 to 5.5 2.7 to 5.5 Excitation Current (mA) <5 <5 <5 <5 <5 Bias Voltage (Vdc) 2.5 2.5 2.5 2.5 2.5 Full Scale Output Voltage (Vdc) 2.0 2.0 2.0 2.0 2.0 Output Impedance () <100 <100 <100 <100 <100 Insulation Resistance (M) >100 >100 >100 >100 >100 100Vdc Residual Noise (V RMS) 800 400 400 400 400 Passband Ground Isolation Isolated from Mounting Surface ENVIRONMENTAL Thermal Zero Shift (%FSO/C) 0.018 0.018 0.018 0.018 0.018 Thermal Sensitivity Shift (%/C) 0.021 0.021 0.021 0.021 0.021 Operating Temperature (C) -54 to +121 Compensated Temperature (C) -20 to +85 Storage Temperature (C) -54 to +121 PHYSICAL Case Material Ceramic Weight (grams) 1.5 Mounting Solder 1 Output is ratiometric with excitation voltage. 2 Do not electrically connect undesignated pads in sensor application. Except pad 5 may be tied to pad 4 without affecting performance. 3 Maximum ratings without damage: - Excitation voltage: +5.5Vdc - ESD protection: 4kV - Solder reflow temperature: +260C (10 seconds) 4 Adhesive underfill suggested for high-g applications. Calibration supplied: CS-SENS-0100 NIST Traceable Amplitude Calibration at 80Hz The information in this sheet has been carefully reviewed and is believed to be accurate however, no responsibility is assumed for inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application by customers technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others. SENSOR SOLUTIONS /// Model 3255A Rev D 07/2017 Page 2