31206A Triaxial Rate Gyro Angular Rate Sensor ±150°/sec, ±300°/sec, or ±600°/sec 1 2 3 4 5 1.115 [28,30] 0.295 [7,50] 3 mm x 0,5 mm Thread x 3,5 mm [0.138] Deep 0.295 [7,50] (6) Mounting Holes 0.945 [24,00] 6 7 8 9 0.354 [9,0] Dimensions in inches [mm], identical for each view where applicable. 0.945 0.354 [24,00] [9,0] Cable to 9-pin male D-Shell connector Mounting Instructions WARNING Improper mounting will void warranty. See mounting instructions within. SUMMIT INSTRUMENTS Summit Instruments, Inc. 2 2 3 6 N . C l eve l a n d - M a s s i l l o n R d . A k ro n , O h i o 4 4 3 3 3 - 1 2 5 5 U S A ( 3 3 0 ) 6 5 9 - 3 3 1 2 FA X : ( 3 3 0 ) 6 5 9 - 3 2 8 6 How to Use the 31206A Connect a +8 to +36V DC power source to pins 8 and 9. ➤ Connect a differential or floating input A/D converter to each signal and signal common pins (pins 1 and 2 for Gyro 1, pins 3 and 2 for Gyro 2, pins 5 and 2 for Gyro 3, and pins 6 and 2 for Temperature). For best results use a converter with an input impedance greater than 1MΩ and common mode rejection ratio greater than 60dB. Single-ended converters are not recommended but if used, leave pin 2 unconnected to eliminate ground loops. A positive acceleration (labeled on the accelerometer cover) causes a positive change on the corresponding output. ➤ Keep cable lengths between the angular rate sensor 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 1 on the self-test input will add 0.25 to 0.6V* to all three gyro outputs. An output that changes less than +0.25V* or more than +0.6V* 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 should be connected to pin 4 or left unconnected. Use two 3,0 x 0,5 mm thread machine screws to attach to one of the three 31206A mounting faces. DO NOT thread a screw more than 2.5 mm (0.100 inch or 5 turns) into any 31206A 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 the mount and the 31206A. ➤ A locking compound should be used on all threads to prevent screws loosening due to vibrations. ➤ Specifications* ➤ * Scale linearly with range option Rnnn. Shock survival Sensitivity @ 25° C ±150 °/sec FSR ±300 °/sec FSR ±600 °/sec FSR Drift TMIN to TMAX Zero G Bias Level At 25° C Drift TMIN to TMAX Alignment Deviation from ideal g Sensitivity Nonlinearity Upper Cutoff Frequency Noise Density Self Test Input Impedance Temperature Sensor Sensitivity +25°C Bias Level Power Supply (VS ) Input voltage limits Input voltage - operating Input current Rejection ratio Output voltage swing Temperature Range * Data subject to change without notice. 12.5 6.3 3.1 2.5 2.50 ±3.0 ±1.5 0.2 0.1 100 0.05 50 13.8 6.9 3.4 ±6.0 8.4 2.5 -20 +8 80 0.25 -40 † 28 120 Pin 1 2 3 4 5 6 7 8 9 Description Cable Wire Gyro 1 Signal common Gyro 2 +5V Ouput Gyro 3 Temperature Self Test Power Ground Brown Red Orange Yellow Green Blue Violet Grey White* }twisted pair }twisted pair }twisted pair }twisted pair Limited Warranty Min Typical Max -2000 +2000 11.2 5.6 2.8 Male D-Shell Connector Units g mV/°/sec mV/°/sec mV/°/sec % FSR V °/sec degrees °/sec/g % FSR Hz °/sec/√Hz kΩ mV/°K V +38 +36 38 4.75 +85 V V mA dB V °C Scale linearly with range option Rnnn. Summit Instruments, Inc. (SI) warrants this product against defects in materials and workmanship for a period of three years from date of shipment. During the warranty period, SI 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. Summit Instruments 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 one-year duration of this written warranty. Warranty Service To obtain service during the warranty period products must be returned, transportation prepaid, to SI. 31206A-D001 Rev.10/05