P31 WILCOXON | Alldatasheet
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Note: Due to continuous process improvement, specifications are subject to change without notice. This document is cleared for public release. Wilcoxon Sensing Technologies 8435 Progress Drive Frederick, MD 21701 USAAn Amphenol Company buy.wilcoxon.com www.wilcoxon.com Tel: +1 (301) 330-8811 Fax: +1 (301) 330-8873 info@wilcoxon.com SPECIFICATIONS P31 Ultra low noise power unit/amplifier Notes: 1 When used with 731A accelerometer. Accessories supplied: Two 9 V alkaline batteries Key features
- Amplifies signal x1, x10, x100
- Switchable output - acceleration or velocity
- Powers 731A accelerometer
- Manufactured in ISO 9001 facility INPUT CHARACTERISTICS Voltage to transducer 18 VDC Current to transducer, ± 20% 2.4 mA Maximum input voltage (gain = 1) 3.5 V rms OUTPUT CHARACTERISTICS Output impedance, nominal 2.5 kΩ Recommended load impedance >250 kΩ Maximum output voltage 3.5 V rms Spectral noise, 1-10 Hz, referred to input < -140 dB TRANSFER CHARACTERISTICS Gain acceleration 1, 10, 100 V/V Output sensitivity1: Acceleration Velocity 10, 100, 1,000 V/g 0.1, 1, 10 V/in/sec Gain accuracy ± 0.25 dB Frequency response, –3 dB: Acceleration (450 Hz filtered) Acceleration (100 Hz filtered) Velocity 0.05 - 450 Hz 0.05 - 100 Hz 0.8 - 150 Hz Amplitude nonlinearity <1% Total harmonic distortion <1% POWER REQUIREMENTS Internal batteries (2) 9 V alkaline Battery life >50 hours ENVIRONMENTAL Temperature range 0° to +55°C Relative humidity, max 90% PHYSICAL CHARACTERISTICS Weight 1.4 lb Dimensions, W x H x D 3 x 17/8 x 6” Connectors: Signal input Signal output Amphenol 31-225 twinax BNC 98443 Rev.J.1 09/18 Power unit/amplifier Model P31 On Off Te st Filter 450 Hz 100 Hz Ve l AC C 100 1000 V/g VEL 0.1 V/In/Sec 3.00" 1.75" 6.2" Wil c oxon Resear ch