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| Description: | A pressure sensor, interface, cable and software for real-time applications. |
| Sensor Type: | Silicon strain gauge pressure sensor, solid-state, with no moving parts, temperature and barometric pressure compensated. |
| Sensing Area: | The housing is entirely constructed of PVC and the sensor is isolated from water by an oil-filled chamber. The gauge is insensitive to clogging, biofouling, or silting, and is vented for automatic and continuous atmospheric pressure correction |
| Depth Range: | 35 meters (Recommended installation depth for wave measurements is 20m or less) |
| Sampling Rate: | 2 Hz |
| Resolution: | 0.05% FS |
| Precision: | 0.15% FS |
| Housing Material: | PVC |
| Weight: | 2.8 Kg (in air) |
| Dimensions: | 114 mm diameter 305 mm length |
| Cable: | 200 feet included |
| Output Parameters Unprocessed: |
Pressure vs. Time |
| Processed: | Software compatible with Windows environment reads, displays and stores instantaneous Depth. Calculates, displays and stores Tide, Significant Wave Height (Hs), Significant Wave Period (Ts), and Spectral Energy coefficients versus Frequency. The software also displays a graph of detrended wave height versus time. |
| Processing Software: | Wave analysis is based on FFT of 2,048 samples. Spectral coefficient used in calculation of wave height and period are corrected for frequency versus depth attenuation. Tide values are calculated based on one minute averages. |
| Signal Output From Sensor to Interface: |
4-20 mA for sensor cable length up to 5000 feet |
| From Interface to PC: | RS232 for computer-interface cable length up to 50 feet. RS485 cable option for computer-interface cable length up to 10,000 feet |
| Power: | External 10 to 30 VDC at less than 50 mA |
| User Entry: | User enters estimated Height Above Bottom (HAB) for automatic frequency versus depth attenuation corrections when calculating surface wave height |
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| InterOcean systems, inc.
4241 Ponderosa Avenue, Suite A, San Diego, CA 92123-6501 Phone: (858) 565-8400 Fax: (858) 268-9695 email: sales@interoceansystems.com |
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