ISOTRON(R) Accelerometer ENDEVCO MODAL 63B-10, -100 MODEL 63B-10 -100 * Shock-Proof, Overload Protected * Small Size (<15 mm 3 , <9 gram) * Single Connector, Flexible Cable * Z-mount Compatible, Reduces Installation Time * Ideal for Modal Analysis Actual size DESCRIPTION The ENDEVCO(R) MODAL 63B is a lightweight triaxial piezoelectric accelerometer with integral electronics, designed specifically to measure modal responses in three orthogonal axes. This accelerometer offers exemplary dynamic range and frequency response in a very small package. MODAL 63B is designed to withstand typical handling in the laboratory environment without sustaining internal damage. The triaxial accelerometer also takes advantage of ENDEVCO's unique Z-mount quick release mounting system which reduces set-up time and improves mounting accuracy. 4 PIN RECEPTACLE 1/4-28 UNF-2A MATES WITH ENDEVCO 3027A CABLE The MODAL 63B features ENDEVCO's PIEZITE(R) Type P-8 crystal elements operating in annular shear mode, which offers very high transduction efficiency without sacrificing ruggedness. This accelerometer incorporates three independent internal hybrid signal conditioners operating in constant current mode. Its low impedance voltage outputs are connected to the same 4-wire cable that supplies the required constant current power. Signal ground is isolated from the mounting surface. The model number suffix indicates acceleration sensitivity in mV/g; i.e., 63B-100 features output sensitivity of 100 mV/g. .562 CUBE (14.27) .918 (23.32) ENDEVCO MODAL 63B S/N YYYY STANDARD TOLERANCE INCHES (MILLIMETERS) .XX = +/- .03 (.X = +/- .8) .XXX = +/- .010 (.XX = +/- .25) ENDEVCO Signal Conditioner Models 133, 2792B, 2793, 4416B or OASIS 482A, 433, 428 are recommended for use with this accelerometer. TYPICAL TEMPERATURE RESPONSE 20 20 15 15 10 10 5 0 -5 1 10 100 1000 % DEVIATION % DEVIATION TYPICAL AMPLITUDE RESPONSE 5 0 -5 -10 -10 -15 -15 -20 10000 -60 20 100 180 (38) (82) -20 260 FREQUENCY IN HERTZ (-51) APPLIES TO CALIFORNIA FACILITY (-7) TEMPERATURE oF ( oC) (127) ENDEVCO MODEL 63B-10 -100 ISOTRON(R) Accelerometer SPECIFICATIONS (EACH AXIS) The following performance specifications conform to ISA-RP-37.2 (1964) and are typical values, referenced at +75F (+24C), 4 mA, and 100 Hz, unless otherwise noted. Calibration data, traceable to National Institute of Standards and Technology (NIST), is supplied. DYNAMIC CHARACTERISTICS RANGE VOLTAGE SENSITIVITY, Typical FREQUENCY RESPONSE [1] Amplitude Response 5% 1dB, typical Resonance Frequency TRANSVERSE SENSITIVITY TEMPERATURE RESPONSE AMPLITUDE NONLINEARITY Units g mV/g Hz Hz Hz % 1 to 3000 .5 to 10 000 25 000 5 See Typical Curve 1 % POWER REQUIREMENT COMPLIANCE VOLTAGE SUPPLY CURRENT WARM-UP TIME (to reach 90% of final bias) ENVIRONMENTAL CHARACTERISTICS TEMPERATURE RANGE HUMIDITY SINUSOIDAL VIBRATION LIMIT SHOCK LIMIT BASE STRAIN SENSITIVITY At 250 strain THERMAL TRANSIENT SENSITIVITY PHYSICAL CHARACTERISTICS DIMENSIONS WEIGHT CASE MATERIAL CONNECTOR MOUNTING [2] See arrows on outline drawing +9.5 to +10.5 100 5 eq. g rms 0.001 0.0005 Signal ground is connected to the case and isolated from the mounting surface Vdc Vdc mA sec + 21 to + 24 + 2 to + 10 <5 g g pk eq. g/strain - 67F to + 257F (- 55C to + 125C) Epoxy sealed 500 200 8000 0.001 eq. g /F (/C) 0.01 (0.02) See Outline Drawing 9 (0.32) Aluminum Alloy, Anodized Microtech DR-4S-4H receptacle mates with Endevco Model 3027A/AM3/AM4 cable Adhesive, stud, or Z-mount gm (oz) CALIBRATION SUPPLIED: VOLTAGE SENSITIVITY MAXIMUM TRANSVERSE SENSITIVITY FREQUENCY RESPONSE P/N 30908 -100 50 100 See Typical Curves OUTPUT CHARACTERISTICS OUTPUT POLARITY DC OUTPUT BIAS VOLTAGE OUTPUT IMPEDANCE FULL SCALE OUTPUT VOLTAGE RESOLUTION (0.5 Hz to 10 kHz bandwidth) GROUNDING ACCESSORY Model 3027AM3 (10 ft) -10 500 10 mV/g % % 20 Hz to 4 kHz ISOTRON (each channel) TRIAXIAL CABLE, 85C [3] (3X BNC's at instrument ends) Z-mount, X3 Constant Current Source Biased Output + Voltage Supply Decoupling Capacitor Unbiased Output OPTIONAL ACCESSORIES Model 3027A-120 (10 ft) Model 3027AM4-120 (10 ft) 2981-12 TRIAXIAL CABLE, 125C (Pigtails at instrument ends) TRIAXIAL CABLE, 125C (Transducer extension cable, mates with Model 3027AM3) NOTES 1. Frequency response of the unit will be limited to 1kHz when the Z-mount is used. 2. Stud mounting of triaxial accelerometer is generally not recommended due to the difficulty in X-Y alignment. Various adhesives, such as hot-melt glue, cyanoacrylate, and petro wax, can be used effectively for mounting within their strength and temperature limitations. 3. Model 3027AM3 cable should only be used for applications under +85C. For +125C environment, use 3027AM4 together with 3027AM3 cable. 4. Maintain high levels of precision and accuracy using Endevco's factory calibration services. Call Endevco's inside sales force at 800-982-6732 for recommended intervals, pricing and turn-around time for these services as well as for quotations on our standard products. Continued product improvement necessitates that Endevco reserve the right to modify these specifications without notice. Endevco maintains a program of constant surveillance over all products to ensure a high level of reliability. This program includes attention to reliability factors during product design, the support of stringent Quality Control requirements, and compulsory corrective action procedures. These measures, together with conservative specifications have made the name Endevco synonymous with reliability. ENDEVCO CORPORATION, 30700 RANCHO VIEJO ROAD, SAN JUAN CAPISTRANO, CA 92675 USA (800) 982-6732 (949) 493-8181 fax (949) 661-7231 www.endevco.com Email:applications@endevco.com 1100