The Oyster 700 Series provide accurate and reliable level measurement utilizing the latest miniature microprocessor technology. The transmitter contains a piezo-resistive sensor that outputs a signal proportional to the hydrostatic pressure on the diaphragm. This signal is compared to the atmospheric pressure via the vent tube and compensated to the water temperature to produce an accurate level measurement.
The benefit of an Oyster submersible pressure transducer is the ease of installation. Just strap the transmitter to a pipe and lower to the desired zero (0) level. That’s it. No calibration required! Connect the 2-wire loop powered 4-20mA output and you’re done!
This technology is ideal for pump stations, fuel tanks, ship ballast, storage vessels and all types of water and wastewater applications. The open face ceramic diaphragm avoids clogging or build-up from slurry and wastewater sludge. The optional titanium or PVDF housing with the Tefzel cable are ideal for corrosive environments or saltwater installations.
All Welded SS 316L, Titanium or PVDF
Molded Polyurethane or Tefzel Cable
Pre-calibrated to Specified Water Column Range
General Purpose or FM/CSA Approved Intrinsically Safe
Integral Temperature Compensation
Technical Specifications: Oyster 700 Series
Measuring Principle Submersible Pressure Transducer
Measuring Range Version Dependent, up to 2,00 ft W.C.
Accuracy (non-linearity, hysteresis & repeatability) ± 0.25% FS (BSL) Standard Version
± 0.1% FS (BSL) High Accuracy Version
Overpressure Full scale ranges up to 20 psi – 10X
Above 20 to 150 psi – 4X
Compensated Temperature Range 30˚ to 85˚ F (-2˚ to +30˚ C)
Compensated Temperature Accuracy ± 1.5% TEB > 5 psi – Standard Version
± 0.3% TEB > 5 psi – High Accuracy Version
Power Supply 2-wire, 4-20mA, 12-40 VDC
Analog 1 4-20mA, Loop-powered output
Temperature Range -10˚ to +175˚F (-20˚ to +80˚C)
Outdoor Rating NEMA 6P (IP 68) Submersible
Dimensions Version Dependent
Housing Material Stainless Steel 316L, Titanium or PVDF with Ceramic Face
Weight Approximate 7 oz. (excluding cable)
Standard General Purpose
Hazardous Areas (Optional- requires I.S. Barrier) FM & CSA Approved Class I, II; Div. I, II; Grp A-G
Product Warranty 1 year