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

SDI Model 2290 Data Sheet

The SDI Model 2290 Single-Axis MEMS DC Precision Reference Calibration Accelerometer offers a precise, reliable, and accurate means of determining the sensitivity and frequency response characteristics of unknown MEMS DC accelerometers during end-to-end calibrations and related performance verifications. Within these applications, the Model 2290 serves as the "Reference Standard," either for performance specification comparisons, or as an actual substitute for the working accelerometer.

In addition to calibration verifications, the Model 2290 Series supports a variety of zero-to-medium frequency instrumentation applications, ranging from DC to 2000 Hz, and including both center of gravity acceleration measurements and equipment calibrations. 

The SDI Model 2290 incorporates SDI’s hermetically sealed, low noise, Model 1527 MEMS DC Inertial-Grade surface mount accelerometer chip and SDI’s proprietary electronics for extra-low noise performance and inertial-grade stability.  The rugged, anodized aluminum, 1-inch square package provides all the same durability and reliability of SDI’s industrial accelerometers, along with the convenience of a 4-wire pigtail for seamless compatibility with almost any DAQ system.

The SDI Model 2290, as with the company's other MEMS DC accelerometer lines, 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 it to a magnet.  The accelerometer is non-ferrous and will not respond to magnetic mounting.  An initial calibration certificate is provided with each unit.

The Model 2290’s US export designation is ECCN 7A994. It is not ITAR controlled.  

 

The SDI Model 2290 is both REACH and RoHS compliant.  ​

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

Applications for SDI Model 2290 accelerometer
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

2290_dimensions.jpg

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