High Temperature Operation (+260°C) Hermetically Sealed 360° Cable Ori

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High Temperature Operation (+260°C) Hermetically Sealed 360° Cable Ori

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Model 2221F
High Temperature Operation (+260°C) Hermetically Sealed 360° Cable Orientation Lightweight Aerospace Flight Testing
ENDEVCO
MODEL 2221F
DESCRIPTION
ENDEVCO® Model 2221F piezoelectric accelerometer designed specifically high temperature vibration measurement small structures objects. unit hermetically sealed ideal extreme environmental conditions. light weight effectively minimizes mass loading. accelerometer self-generating device that requires external power source operation. Model 2221F features ENDEVCO's PIEZITE Type crystal element, operating annular shear mode. This unit exhibits excellent output sensitivity stability over time. Signal ground connected outer case unit and, when used with isolated mounting screw, accelerometer electrically isolated from ground. lownoise coaxial cable supplied error-free operation. transducer centrally located thru bolt, allowing 360° cable orientation. unit also adhesively mounted application permits.
Actual size
(6.1)
.363 (9.22)
.140 (3.56)
.600 (15.24)
.021 SAFETY WIRE HOLES UNIT IDENTIFICATION INSULATED MOUNTING SCREW ASSEMBLY 6-32 UNC-2A MATES WITH ENDEVCO 3000 SERIES CABLES WITH 10-32 UNF-2B CONNECTOR
(13.2) (3.1) (8.9)
ENDEVCO Signal Conditioner Models 133, 2775A OASIS 2000 Computer-Controlled System recommended with this high impedance accelerometer.
(3.1) .013 (.33) .496 (12.60) STANDARD TOLERANCE INCHES (MILLIMETERS) .XXX .010 (.XX .25)
F-CAD: PS2221F
INSULATED MOUNTING SURFACE (HARD ANODIZED ALUMINUM)
TYPICAL AMPLITUDE RESPONSE
TYPICAL TEMPERATURE RESPONSE
TYPICAL CAPACITANCE
DEVIATION
DEVIATION
CHARGE SENSITIVITY (260)
100000
1000
10000
-100 (-73)
(38)
(149)
FREQUENCY HERTZ
TEMPERATURE
APPLIES CALIFORNIA FACILITY
ENDEVCO
SPECIFICATIONS
following performance specifications conform ISA-RP-37.2 (1964) typical values, referenced +75°F (+24°C) unless otherwise noted. Calibration data, traceable National Institute Standards Technology (NIST), supplied. DYNAMIC CHARACTERISTICS CHARGE SENSITIVITY TYPICAL MINIMUM FREQUENCY RESPONSE RESONANCE FREQUENCY AMPLITUDE RESPONSE ±1dB TEMPERATURE RESPONSE TRANSVERSE SENSITIVITY AMPLITUDE LINEARITY 2000 ELECTRICAL CHARACTERISTICS OUTPUT POLARITY RESISTANCE ISOLATION CAPACITANCE GROUNDING Units pC/g pC/g 10.0 Typical Amplitude Response Typical Curve
MODEL 2221F
Acceleration directed into base unit produces positive output Signal return connected case. Case isolated from mounting surface insulated screw assembly
ENVIRONMENTAL CHARACTERISTICS TEMPERATURE RANGE HUMIDITY SINUSOIDAL VIBRATION LIMIT SHOCK LIMIT BASE STRAIN SENSITIVITY THERMAL TRANSIENT SENSITIVITY PHYSICAL CHARACTERISTICS DIMENSIONS WEIGHT CASE MATERIAL CONNECTOR MOUNTING TORQUE CALIBRATION SUPPLIED: FREQUENCY RESPONSE CHARGE SENSITIVITY MAXIMUM TRANSVERSE SENSITIVITY CAPACITANCE
equiv. pk/µ strain equiv. pk/°F (/°C)
-67°F +500°F (-55°C +260°C) Hermetically sealed 1000 3000 0.02 0.004 (0.007)
(oz)
lbf-in (Nm)
Outline Drawing (0.39) Stainless Steel Coaxial, 10-32 male thread
pC/g
ACCESSORIES Model 3090C-120 10207 EHM49 Model 2987
CABLE ASSEMBLY INSULATED MOUNTING SCREW, 6-32 ALLEN WRENCH, 7/64 INCH ADHESIVE MOUNTING ADAPTER
OPTIONAL ACCESSORIES Model 2771AM3 IN-LINE CHARGE CONVERTOR WITH CONSTANT CURRENT SOURCE Model 2950M3 TRIAXIAL MOUNTING BLOCK
NOTES Low-end response transducer function associated electronics. Short duration shock pulses, such those generated metalto-metal impacts, excite transducer resonance cause linearity errors. Send TP290 more details. Maintain high levels precision accuracy using Endevco's factory calibration services. Call Endevco's inside sales force 800-982-6732 recommended intervals, pricing turnaround time these services well quotations standard products.
Continued product improvement necessitates that Endevco reserve right modify these specifications without notice. Endevco maintains program constant surveillance over products ensure high level reliability. This program includes attention reliability factors during product design, support stringent Quality Control requirements, compulsory corrective action procedures. These measures, together with conservative specifications have made name Endevco synonymous with reliability. ENDEVCO CORPORATION, 30700 RANCHO VIEJO ROAD, JUAN CAPISTRANO, 92675 (800) 982-6732 (949) 493-8181 (949) 661-7231 www.endevco.com Email:applications@endevco.com 1100

High Temperature Operation (+260°C) Hermetically Sealed 360° Cable Ori

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