SDI 2290 HIGH PRECISION MEMS DC CALIBRATION REFERENCE ACCELEROMETER

Inertial-grade stability and precision in an industrial package

SDI Model 2290-025 Reference Accelerometer

ECCN 7A994

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The SDI Model 2290 High Precision MEMS DC Calibration Reference Single Axis MEMS DC Accelerometer is a rugged, plug-and-play measurement device designed for zero-to-medium frequency applications that demand highly precise and reliable, accurate measurements.  It features SDI’s hermetically sealed, low noise, Model 1527 Tactical-Grade Inertial Navigation MEMS DC Accelerometer and SDI's proprietary electronics for extra-low noise performance and inertial-grade stability.  The rugged, anodized aluminum, 1” x 1” square package provides all the durability and reliability of SDI’s industrial accelerometers with the convenience of a 4-wire pigtail for use with almost any DAQ system. 

The 2290 is relatively insensitive to temperature changes and gradients. Onboard voltage regulation and an internal voltage reference eliminate the need for precision power supplies. The anodized aluminum case is epoxy sealed and is easily mounted via two screws, an adhesive, or by attaching a magnet.  The accelerometer is non-ferrous and will not respond to magnetic mounting.  An initial calibration certificate is provided with each unit.

The 2290 is REACH and RoHS compliant; it is ECCN 7A994 and is not ITAR controlled.

AVAILABLE

G-RANGES

± 5 g

± 10 g

± 25 g

± 50 g

  • Excellent Long-Term Stability

  • Flexible +8 to +32 VDC Power  

  • ±4V Differential Output

  • -55 to +125°C Operating Temperature Range 

  • Responds to Frequencies from Zero (DC) up to 1800 Hz

  • Low Impedance Outputs Support up to 2000 Feet of Cable

  • Integrated Cable, Traditional 1” square Size

  • Integrated 10’ Cable with Simple 4-Wire Connection

  • Rugged Anodized Aluminum Case, Module Mass: 9 Grams

  • Fully Calibrated and Serialized for Traceability

Quick Links

ZERO TO MEDIUM FREQUENCY APPLICATIONS

SDI accelerometer applications
G
Sensitivity, Differential
Frequency Response (Typ, 3 dB)
Frequency Response (Min, 3 dB)
Frequency Response (Typ, 5%)
Output Noise, Differential (RMS, Typ)
Max. Mechanical Shock (0.1 ms)
g
mV/g
Hz
Hz
Hz
μg/(root Hz)
g (peak)
±5
800
0 – 450
0 – 300
0 – 250
10
2000
±10
400
0 – 600
0 - 400
0 – 500
12
5000
±25
160
0 – 900
0 - 600
0 – 650
25
5000
±50
80
0 – 1200
0 – 900
0 – 800
50
5000

OPERATION

 

These accelerometer modules produce differential analog output voltage pairs (AON & AOP) which vary with acceleration.  The signal outputs are fully differential about a common mode voltage of approximately 2.5 volts.  At zero acceleration, the output differential voltage is nominally 0 volts DC; at ±full scale acceleration, the output is ±4 volts DC, respectively, as shown in the figure (below).  The output scale factor is independent from the supply voltage of +8 to +32 volts. 

SDI addelerometer differential output plot

PERFORMANCE - ALL VERSIONS

All Models: Unless otherwise specified, Vs=+8 to +32 VDC, TC=25°C, Differential Mode.  Span = ±g range = 8000 mV.

NOTICE:  Stresses greater than those listed may cause permanent damage to the device.  These are maximum stress ratings only.  Functional operation of the device at or above these conditions is not implied.

PACKAGE DIMENSIONS

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Please see the data sheet for sensor location and other additional details. 

OPTIONAL ACCESSORIES

Model 2230 Triaxial Mounting Block

  • Anodized 6061-T6 aluminum 1.25" cube

  • Mix and Match g-levels for custom combinations

SDI 2230 mounting block

Model 2232 Magnetic Mount

  • 10 lbs / 4.6 KG pull force

  • Rated for use up to +/-50G

  • Low mass: 23 grams

SDI 2232 magnetic mounting block

Model 2235 Stud Mount Adaptor Block

  • Stud mount Adaptor for any SDI module

  • Anodized 6061-T6 aluminum block

  • 6.2 grams, 0.7” x 1” footprint

SDI 2235 mounting block