Meggitt Sensing Systems Endevco® model 2262A piezoresistive accelerometers

Product catalog summary

Overview: The Endevco model 2262A accelerometers are rugged, fluid-damped piezoresistive transducers. They utilize Piezite® type P-11 semiconductor strain gage elements in a bridge configuration, providing low impedance output with 10 Vdc excitation. These accelerometers are suitable for driving tape recorders, data acquisition systems, and low-frequency galvanometers without amplification. Viscous damping extends their frequency range and reduces high-frequency vibration effects. Typical applications include transportation environmental testing and transient accelerations on structural members.

Specifications:

Performance Characteristics: The accelerometers have a DC response with full ranges of 1000 g and 2000 g, and a full-scale output of 500 mV. They are hermetically sealed and have a damping ratio of 0.7. The sensitivity is 0.50 mV/g for 1000 g and 0.25 mV/g for 2000 g. The amplitude response is ±5% from 1 to 1500 Hz for 1000 g and 0 to 3000 Hz for 2000 g.
Electrical: The excitation is 10.0 Vdc maximum, with input resistance of 600 ohms and output resistance of 400 ohms. Insulation resistance is 100 megohms minimum at 100 Vdc.
Physical: The case is made of stainless steel, and the unit weighs 28 grams. It includes a mounting hole for a 10-32 UNF x 1/8 inch stud with a torque of 18 lbf-in (2Nm).
Environmental: The accelerometers can operate between 0°F to +200°F and are unaffected by humidity and altitude. They have acceleration limits of 1000 g static and 2500 g shock limit for 1000 g range, and 2000 g static and 5000 g shock limit for 2000 g range.

Recommendations: Endevco models 126, 136, or 436 are recommended as signal conditioners and power supplies. Calibration data traceable to NIST is supplied, and Meggitt offers factory calibration services for maintaining precision and accuracy.

Accessories: The product includes a mounting stud (10-32 UNF-2A), cable assembly, and hex key wrench. Optional accessories include a triaxial mounting block and various mounting studs and cable assemblies.

Catalog excerpts

Meggitt Sensing Systems Endevco® model 2262A piezoresistive accelerometers-1

Model 2262A Piezoresistive accelerometer Features Description • DC response • 1000 g and 2000 g full range • 500 mV full scale output • Hermetically sealed The Endevco® model 2262A accelerometers are rugged, fluid damped transducers of the piezoresistive type. Endevco’s Piezite® type P-11 semiconductor strain gage elements are used in a bridge configuration, providing a low impedance output with 10 Vdc excitation. The output is high enough to drive most tape recorders, data aquisition systems, and low frequency galvanometers directly, without amplification. Viscous damping extends their useful frequency range and reduces the effect of spurious, high frequency vibrations. Typical applications for these accelerometers include transportation environmental testing and transient accelerations on structural members. Endevco model 126, 136 or 436 recommended as signal conditioner and power supply. .625 HEX (15.88) KEYING DOT FOR CONNECTOR ORIENTATION 3 2 5 .17 CENTER OF (4.3) SEISMIC MASS .22 (5.6) 6 4 1 MATES WITH ENDEVCO 3022B CABLE .610 DIA (15.49) DIRECTION OF POSITIVE OUTPUT CENTER OF SEISMIC MASS .140 (3.56) .58 (14.7) .130 MIN THD (3.30) 1.00 (25.4) .280 (7.11) .028 (.71) .006 (.15) .003 (.08) .250 DIA (6.35) .540 DIA (13.72) MODEL 3022B CABLE ASSEMBLY 10-32 UNF-2B THD RECEPTACLE ACCELEROMETER CASE 1 2 3 4 5 6 SCHEMATIC 1 2 3 4 5 6 STANDARD TOLERANCE INCHES (MILLIMETERS) .XX = +/- .03 (.X = +/- .8) .XXX = +/- .010 (.XX = +/- .25) RED + IN GRN + OUT WHT - OUT BLK - IN CABLE SHIELD

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Meggitt Sensing Systems Endevco® model 2262A piezoresistive accelerometers-2

Model 2262A Piezoresistive accelerometer Specifications Performance characteristics: All values are typical at +75˚F (+24˚C), 100 Hz and 10 Vdc excitation unless otherwise stated. Calibration data, traceable to the National Institute of Standards and Technology (NIST), is supplied. Units -1000 -2000 Range Sensitivity (at 100 Hz) Amplitude response ±5% ±1 dB Maximum deviation (0 Hz to 2000 Hz) [1] Mounted resonance frequency Damping ratio [2] Non-linearity and hysteresis (% of reading, to full range) Transverse sensitivity Zero measurand output [3] Thermal zero shift From 0˚F to +200˚F (-18˚C...

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