34201A ±1 g to ±2 g Triaxial Accelerometer Zero g Bias Stability ±2 mg Very Low Noise 110 µg/Hz Measurement Specialties, Inc. 2236 N. Cleveland-Massillon Rd. Akron, Ohio 44333-1255 USA (330) 659-3312 www.meas-spec.com precisionsensors.meas-spec.com Parameter Specifications* Min Range Measurement Full Scale Sensitivity At 25°C, Option R002 Drift Tmin to Tmax Zero g Bias Level At 25°C Drift Tmin to Tmax Alignment Deviation from Ideal Axes Transverse Sensitivity Nonlinearity Frequency Response Noise Density Self Test Pull-up Resistor Temperature Sensor Sensitivity +0°C Bias Level Outputs Output Voltage Swing, R001, R1.5 Output Voltage Swing, R002 Power Supply (Vs) Input Voltage Limits Input Voltage - Operating Input Current Rejection Ratio Temperature Range (Ta) Mass Shock Survival Data subject to change without notice †Scale linearly with range option Rnnn Typical Max Units ±2.0 g 1000† ±0.3 mV/g % 2.5 ±2 ±0.15 0.25 ±0.2 0 110 5 ±6 ±0.5 ±1.25 2100 6.45 509 V mg degrees % % FSR Hz µg/√Hz kΩ mV/°C mV 0.05 0.55 4.95 4.8 V V -20 +8.5 13 >120 -40 35 -3500 +36 +36 V V mA dB °C grams g +85 +3500 *within one year of calibration Three-Year Limited Warranty Measurement Specialties, Inc. warrants this product against defects in materials and workmanship for a period of three years from date of shipment. During the warranty period, Measurement Specialties will, at its option, either repair or replace products which prove to be defective. Exclusions This warranty does not apply to defects or damage resulting from: •Improper installation or maintenance •Customer supplied software or interfacing •Unauthorized modification or misuse •Operation outside of the product specifications Limitations The warranty set forth above is exclusive and no other warranty, whether written or oral, is expressed or implied. Measurement Specialties specifically disclaims the implied warranties of merchantability and fitness for a particular purpose. Some jurisdictions do not allow limitations on how long an implied warranty lasts, so the above limitation or exclusion may not apply to you. However, any implied warranty of merchantability or fitness is limited to the three-year duration of this written warranty. Warranty Service To obtain service during the warranty period, products must be returned, transportation prepaid, to Measurement Specialties. 34201A Rev. 8/18/13 How to Use the 34201A ►Connect ► a +8.5 to +36 V DC power source to pin 8, ground to pin 9. Accelerometer Connections Mounting Instructions ►Use ► two 3.0 mm x 0.5 mm thread machine screws to attach to one of the three 34201A mounting faces [recommended torque 5 lbf-in (0.56 N.m)]. DO NOT thread a screw more than 2.5 mm (0.100 inch or 5 turns) into any 34201A mounting face as this can damage the accelerometer and will VOID the warranty. ►A ► light film of oil or silicone grease can be used to enhance contact between two mounting surfaces. ►A ► locking compound should be used on all threads to prevent screws loosening due to vibrations. Pin Description 1 2 3 4 5 6 7 8 9 Accelerometer 1 Brown Signal common Red Accelerometer 2 Orange +5V Output Yellow Accelerometer 3 Green Temperature Blue Self Test-L Violet Power Grey Ground* White Cable Wire } } } } twisted pair twisted pair twisted pair twisted pair *connected to braided shield at D-shell pin CAUTION Improper wiring, particularly Power, may cause permanent damage and void the warranty. Pins other than +Vs should not exceed 5 V ►Connect ► a differential or floating input A/D converter to each signal and signal common pins (pins 1 and 2 for Accelerometer 1, pins 3 and 2 for Accelerometer 2, pins 5 and 2 for Accelerometer 3 and pins 6 and 2 for Temperature). For best results, use a converter with an input impedance greater than 1 MΩ and common mode rejection ratio greater than 60 dB. Single-ended converters are not recommended, but if used, leave pin 2 unconnected to eliminate ground loops. A positive acceleration (marked on the accelerometer label) causes a positive change on the corresponding output. ►Keep ► cable lengths between the accelerometer and A/D converter as short as practical. Use shielded twisted pair wiring, especially near electric motors or other noise sources. ►As ► a rule of thumb, sample frequency should be at least 10 times the signal bandwidth when linear interpolation is used for signal reconstruction. Built-in or external low-pass filtering can be used to lower the noise floor and eliminate spurious peak measurements from short-duration shock impulses with insignificant energy content. ►A ► logic 0 on the self-test input will add to all three accelerometer outputs (see calibration certificate for amount). An output that changes significantly more or less (±20%) than the certificate amount indicates a defective channel, shorted pin or broken wire. The self-test signal is approximate and should not be used for calibration. If the self-test feature will not be used, pin 7 may be left disconnected.