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Model P31 Ultra Low Noise Power Unit/Amplifier
Brand: Wilcoxon Sensing TechnologiesFeatures:
- Powers model 731 seismic accelerometer
- Ultra low noise
- Amplifies signal x1, x10, x100
- Switchable output: acceleration or velocity
- Battery powered
- Wide dynamic range
- Switchable low pass filter, 450 Hz or 100 Hz
- Low current draw
- Battery test light
Specifications
Accuracy
- Gain Accuracy: ± 0.25 dB
Battery Life
- > 50 Hours
Electrical Connectors
- Signal Input: Amphenol Plug 31-225 Twinax
- Signal Output: BNC Connector
Frequency
- Frequency Response, -3 dB (Velocity): 0.8 to 150 Hz
- Frequency Response, -3 dB [Acceleration (100 Hz Filtered)]: 0.05 to 100 Hz
- Frequency Response, -3 dB [Acceleration (450 Hz Filtered)]: 0.05 to 450 Hz
Humidity
- 90 % Relative Humidity, Max.
Input
- Current to Transducer, ± 20 %: 2.4 mA
- Voltage to Transducer: 18 Vdc
Load Impedance
- Recommended Load Impedance: > 250 kiloohms
Noise
- Spectral Noise, 1 to 10 Hz, Referred to Input: < -140 dB
Non-Linearity
- Amplitude Non-Linearity: < 1 %
Output Impedence
- Output Impedance, Nominal: 2.5 kiloohms
Power Requirement
- Internal Batteries: (2) 9 V Alkaline Batteries
Sensitivity
- Output Sensitivity (Acceleration): 10 to 1,000 V/g
- Output Sensitivity (Velocity): 0.1 to 10 V/inch/sec
Temperature Range
- 0° to 55° C (32° to 130° F)