SDI 2210, 2260 & 2266 ACCELEROMETERS
SDI’s Models 2210, 2260, and 2266 Low Cost Single-Axis MEMS DC Accelerometers are rugged plug-and-play measurement devices for suitable for a wide array of demanding applications. All three models excel in zero-to-medium frequency industrial applications, particularly where reliable performance, extremely low noise, and long-term stability are absolute requirements.
AVAILABLE
G-RANGES
± 2 g
± 5 g
± 10 g
± 25 g
± 50 g
± 100 g
± 200 g
± 400 g
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Low Noise: 10 μg/rootHz Typical for ±2g Full Scale Versions
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-55 to +125°C Operating Temperature Range
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Flexible +8 to +32 VDC Power
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Excellent Long-Term Stability
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±4V Differential Output or 0.5V to 4.5V Single Ended Output
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Responds to frequencies from zero (DC) to 2000+ Hz
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Low Impedance Outputs Support up to 2000 Feet of Cable
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Integrated Cable or Connector, Traditional 1” & Small Footprint Sizes
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Simple Four (4) Wire Connection
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Rugged Anodized Aluminum Case
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Fully Calibrated and Serialized for Traceability
The 2210 comes in a traditional 1-inch square package and the 2260 and 2266 are the small footprint devices designed for tight spaces. The 2210 and 2260 feature an integrated 3’ cable, while the 2266’s connector allows for customized cable lengths and easy repositioning. All three models feature a hermetically sealed, low noise SDI surface mount accelerometer, which is individually tested, programmed, calibrated by SDI.
Onboard voltage regulation and an internal voltage reference eliminate the need for precision power supplies. The robust, anodized aluminum case is potted then epoxy sealed and can be mounted easily via two screws, an adhesive, or by attaching a magnet.
ZERO TO MEDIUM FREQUENCY APPLICATIONS
g Range | 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) |
±2 | 2000 | 0 – 525 | 0 – 300 | 0 – 250 | 10 | 2000 |
±5 | 800 | 0 – 800 | 0 – 420 | 0 – 400 | 15 | 2000 |
±10 | 400 | 0 – 1100 | 0 – 660 | 0 – 700 | 23 | 5000 |
±25 | 160 | 0 – 1750 | 0 – 1050 | 0 – 1300 | 38 | 5000 |
±50 | 80 | 0 – 2100 | 0 – 1400 | 0 – 1600 | 60 | 5000 |
±100 | 40 | 0 – 3000 | 0 – 1700 | 0 – 1700 | 121 | 5000 |
±200 | 20 | 0 – 3600 | 0 – 2100 | 0 – 1900 | 243 | 5000 |
±400 | 10 | 0 – 4200 | 0 – 2400 | 0 – 2000 | 475 | 5000 |
OPERATION
SDI Models 2210, 2260, and 2266 MEMS DC Accelerometers provide optimal performance when they are connected to instrumentation in a differential configuration using both the AOP and AON output signals, but they also support single ended operation for complete flexibility.
These Accelerometers 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.
When a differential connection is not possible, SDI recommends connecting the accelerometer to instrumentation in single ended mode by connecting AOP and GND to the instrumentation and leaving AON disconnected. Keep in mind that the signal to noise ratio is reduced by half for a single-ended vs. a differential connection.
PERFORMANCE - ALL VERSIONS
All Models: Unless otherwise specified, Vs=+8 to +32 VDC, TC=25°C, Differential Mode. Span = ±g range = 8000 mV.
Note (1): For 2g thru 50g only; 100g and greater versions are tested and specified from -65 to +65g.
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
Please see the data sheet for sensor location and other additional details.
OPTIONAL ACCESSORIES
Model 2230 Triaxial Mounting Block
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Anodized 6061-T6 aluminum 1.25" cube
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Mix and Match g-levels for custom combinations
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10 lbs / 4.6 KG pull force
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Rated for use up to +/-50G
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Low mass: 23 grams
Model 2235 Stud Mount Adaptor Block
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Stud mount Adaptor for any SDI module
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Anodized 6061-T6 aluminum block
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6.2 grams, 0.7” x 1” footprint
3-AXIS VERSIONS
SDI’s universal single axis accelerometers are also built in three-axis configurations for multi-dimensional sensing in one package with only a single excitation connection. The SDI Models 2460 and 2466 are the three axis versions of the 2210, 2260 and 2266, using the same hermetically sealed, low noise SDI surface mount accelerometers. The 2460 includes a 3-foot integrated cable and is internally identical to the 2466, which features a connector for easily customized cable lengths and positions.
