Silicon Strain Gauge Hydrostatic Pressure Sensors

Hydrostatic pressure sensors with silicon semiconductor strain gauge diaphragms which offer high accuracy for low to medium range liquid level measurement.  The small surface area of silicon chips is ideal for incorporating into the design of small diameter submersible sensors which are lowered down narrow boreholes as part of groundwater surveys.

Measure vacuum, positive gauge and absolute pressures from -1 bar (-15psi) up to 40 bar (600psi) with this all in one electronic switch, gauge and sensor. Designed specifically for use in the food, drink and biomedical industry for measuring process pressures and vessel contents. Choose dairy pipe or clamp type sanitary process fittings and select a food grade oil fill as the diaphragm isolation fluid. For pharmaceutical installations requiring hazardous dust protection the instrument includes the option for ATEX intrinsic safety.

Water resistant pressure sensor for measuring hydrostatic pressures in the range of 0-0.5 mWC up to 0-100 mWC. An all stainless steel 316L construction with Viton O rings seals and a choice of PUR, PVC or FEP vented cabling. The IMSL is used for measuring groundwater, aquifer, reservoir and borehole water level. The internal silicon strain gauge sensor provides a stable water level reading accurate to 0.1% of span linearity with low hysteresis and repeatability errors.

Submersible stainless steel pressure transmitter ideal for geotechnical surveying with a 19mm diameter for measuring hydrostatic water level in bore-holes. This small diameter level sensor has level ranges from 1 up to 250 metres water column and a 4-20mA current loop output signal.

Submersible level transmitter for measuring liquid level with a 4-20mA current loop or a 0-10V voltage output plus optional ATEX approval for instrinsically safe use in hazardous areas in ranges from 1mH2O up to 250mH2O.

Combined pressure and temperature sensor with a 1200 baud rate serial data interface as defined by the SDI-12 support group. The S12S is a submersible probe used for monitoring water level and temperature. The SDI-12 digital interface is specially designed for low power, battery operated instrumentation such as on-site environmental dataloggers. Measure the rise and fall of water levels in ranges from 0 to 2 feet up to 0 to 300 feet of water column.