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731A

Product catalog summary

Specifications Overview
The document provides detailed specifications for the Wilcoxon Sensing Technologies 731A ultra quiet, ultra low-frequency accelerometer. It highlights the key features, technical specifications, and handling requirements.

Key Features

Ultra low-noise electronics for clear signals at sub-µg levels.
Ultra high sensitivity.
Manufactured in an ISO 9001 certified facility.

Technical Specifications

Sensitivity: ± 10%, 25°C, 10 V/g.
Acceleration Range: 0.5 g peak.
Amplitude Nonlinearity: 1%.
Frequency Response: 0.10 - 300 Hz (± 10%), 0.05 - 450 Hz (± 3 dB).
Resonance Frequency: 750 Hz.
Transverse Sensitivity: Max 1% of axial.
Temperature Response: –10°C to +65°C, –12% to +5%.
Power Requirement: 18 - 30 VDC, 2 - 10 mA.
Electrical Noise: Broadband 0.5 µg, Spectral 0.03 µg/√Hz at 2 Hz, 0.01 µg/√Hz at 10 Hz, 0.004 µg/√Hz at 100 Hz.
Output Impedance: Max 100 Ω.
Bias Output Voltage: 9 VDC.
Grounding: Case isolated.
Temperature Range: –10° to +65°C.
Vibration Limit: 10 g peak.
Shock Limit: Fragile.
Electromagnetic Sensitivity: 20 µg/gauss at 60 Hz.
Sealing: Hermetic.
Base Strain Sensitivity: Max 0.0001 g/μstrain.
Sensing Element Design: PZT ceramic / flexure.
Weight: 760 grams.
Case Material: 316L stainless steel.
Mounting: 3/8-16 tapped hole.
Output Connector: 2 pin, MIL-C-5015 style.
Mating Connector: R6 type.
Recommended Cabling: J9 / J9T2A.

Connections

Function: Connector pin.
Power/Signal: A.
Common: B.
Ground: Shell.

Additional Information
Special handling is required due to the sensitivity of the device, and it comes with a wooden protective case. Accessories supplied include an SF7 mounting stud and calibration data (level 3). An optional power unit/amplifier model P31 is available.

Catalog excerpts

SPECIFICATIONS Sensitivity, ± 10%, 25°C Acceleration range Amplitude nonlinearity Frequency response: ± 10% ± 3 dB Resonance frequency Transverse sensitivity, max Temperature response: -10°C Key features Power requirement: Voltage source Current regulating diode Electrical noise, equiv. g: Broadband 2.5 Hz to 25 kHz • Ultra low-noise electronics for clear signals at sub-pg levels • Ultra high sensitivity • Manufactured in ISO 9001 facility Output impedance, max Bias output voltage Grounding Temperature range Vibration limit Shock limit Electromagnetic sensitivity at 60 Hz Sealing Base strain sensitivity, max Sensing element design Weight Case material Mounting Output connector Mating connector Recommended cabling 0.5 pg 0.03 pg/VHz 0.01 pg/VHz 0.004 pg/VHz 100 O 9 VDC case isolated -10° to +65°C 10 g peak fragile 20 pg/gauss hermetic 0.0001 g/pstrain PZT ceramic / flexure 760 grams 316L stainless steel 3/8-16 tapped hole 2 pin, MIL-C-5015 style R6 type J9/J9T2A Note: Special handling required due to sensitivity; wooden protective case included. Accessories supplied: SF7 mounting stud; calibration data (level 3) Options: Power unit/amplifer model P31 C€ Note: Due to continuous process improvement, specifications are subject to change without notice. This document is cleared for public release. Wilcoxon Sensing Technologies An Amphenol Company 8435 Progress Drive Frederick, MD 21701 USA buy.wilcoxon.com www.wilcoxon.com

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