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OEM Accelerometer
Model 525
* * * * * Low Impedance Low-Noise, High Resolution TO-5 Packaging Wide Bandwidth Low Cost / OEM Applications
ENDEVCO
MODEL 525
DESCRIPTION
The ENDEVCO Model 525 is a miniature piezoelectric accelerometer with internal electronics, configured in a TO-5 package for high volume OEM applications. As a low-impedance piezoelectric device, the Model 525 offers a wide frequency response, high shock survivability and low noise. The Model 525 is designed specifically to provide high-performance integrated vibration measurement of machines, structures or vehicles. Mounting hardware and cabling are eliminated. The device is designed for integration in standard hybrid or SMT electronics packaging and may be mounted by either adhesive or soldering. The ENDEVCO Model 525 is a hermetically sealed design capable of withstanding long-term reliability in harsh environments. The Model 525 is available in two power ranges. 525-01 : +18v to +28v, 2mA to 20mA. 525-02 : +5v to +18v, 0.39mA to 2mA.
TYPICAL AMPLITUDE RESPONSE TYPICAL AMPLITUDE RESPONSE
TYPICAL TEMPERATURE RESPONSE
20 15 10
20 15 10
% DEVIATION
% DEVIATION
5
5 0 -5 -10 -15
dB DEVIATION
0 -5 -10
-X-010, 100 -Y-010, 100
10 100 1000
-15 -20 10000
-100 (-73) -50 0 (-18) 50 100 (38) 150 200 (93) 250 -20 300 (149)
1
FREQUENCY IN HERTZ
TEMPERATURE F (C)
APPLIES TO CALIFORNIA FACILITY
ENDEVCO
OEM Accelerometer
SPECIFICATIONS
Values are typical at +23C, referenced at 100 Hz and conform to ISA-RP 37.2 (1-64) unless otherwise specified. -01 Option 525-10-01 525-100-01 500 50 10 100 See Typical Curve 30000 0.5 to 12 000 5 10 <5 <1 -02 Option 525-100-02 100 100 30000 0.5 to 12 000 5 10 <5 <1
MODEL 525
DYNAMIC CHARACTERISTICS RANGE VOLTAGE SENSITIVITY (20%) FREQUENCY RESPONSE RESONANCE FREQUENCY AMPLITUDE RESPONSE 10 TEMPERATURE RESPONSE Sensitivity deviation at (0C to 40C) Sensitivity deviation at (-20C to +85C) TRANSVERSE SENSITIVITY AMPLITUDE LINEARITY
Unit g mV/g Hz Hz % % % %
525-10-02 100 10
ELECTRICAL CHARACTERISTICS SUPPLY VOLTAGE Vdc SUPPLY CURRENT mA WARM-UP TIME sec DC OUTPUT BIAS VOLTAGE Vdc ROOM TEMPERATURE OVEN OPERATING TEMP (-55C TO +125C) FULL SCALE OUTPUT VOLTAGE Vdc NOISE (Broadband) grms
+18 to +28 +2 to +20 <2 +11.5 to +12.5 +7 to +14 5 300 100 300
+5 to +18 +0.39 to +2 <2 +3.2 to 3.5 +2.7 to 3.6 1 100
OUTPUT CHARACTERISTICS OUTPUT POLARITY GROUNDING OUTPUT IMPEDANCE
See Outline Drawing Signal Ground Connects to Case <100
See Outline Drawing Signal Ground Connects to Case <100
ENVIRONMENTAL CHARACTERISTICS OPERATING TEMPERATURE HUMIDITY SINUSOIDAL VIBRATION LIMIT SHOCK LIMIT [1]
g pk g pk
-54C to +125C (-65F to +257F) Hermetic 800 10000
-54C to +125C (-65F to +257F) Hermetic 800 10000
PHYSICAL CHARACTERISTICS DIMENSIONS WEIGHT oz (gram) HEADER LID OUTPUT CONNECTION PART NUMBERING AND ORDERING
TO-5 package 0.36" dia, 0.40" tall 0.10 (2.8) Kovar, gold plated Stainless Steel 1 Output lead 2 ground leads
TO-5 package 0.36" dia, 0.40" tall 0.10 (2.8) Kovar, gold plated Stainless Steel 1 Output lead 2 ground leads
525 - __ __ - __ __ __
SENSITIVITY: 010 = 10 mV/g, 100 = 100 mV/g TEMPERATURE SENSOR OPTION: T for temp. sensor, otherwise leave blank SENSITIVE AXIS: X = +x positive output Y = +y positive output Z = +z positive output ACCESSORIES No accessories included. NOTES 1. Shock pulses of short duration may excite the transducer sesonance. Shock levels above the sinusoidal limit may produces temporary zero shift which will result in erroneous data. 2. 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 turnaround 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 0501

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