Geotechnical

Pressure sensors & instrumentation for measuring and recording pressure and level on applications such as bore-hole, soil & concrete testing.

Economical IP68 protected sensor with stainless steel 316L housing and Ceramic strain gauge sensing diaphragm for measuring liquid depth pressure or the pressure in a submerged pipe or vessel. Measure hydrostatic pressure from from 0 to 10 mWC (33 ftWC) up to 0 to 100 mWC (330 ftWc) and convert reading to a millivolt, current or voltage signal output. The Ceramic diaphragm has a high chemical resistance to media such as leachate and seawater, and the housing can be upgraded to Duplex stainless steel if necessary for extra material protection. A PUR coated cable is fitted as standard, but for additional chemical protection an FEP coated cable can be supplied.

Battery powered data logger for recording atmospheric pressure with an accuracy of ±0.1% full scale. A temperature sensor is also included with an accuracy of ±0.1 DegC.

Current output pressure transducer for measurement ranges from 0 to 2000 (30000 psi) range up to a maximum range of 6000 bar (90000 psi). All welded wetted parts and ATEX approved electronics for use in flammable gas or dust environments. Primarily used in hydraulic systems, waterjet torching and high pressure petrochemical applications. Accurate to 0.5% full scale output with adjustable zero and span trim via accessible potentiometers.

Stainless steel 316L wetted parts pressure sensor for high pressure ranges from 60 bar (900 psi) up to 600 bar (9000 psi). Used on applications such as hydraulic test benches, presses, injection moulding machines, hydraulic actuation and vehicle hydraulic systems. Accurate to 0.35% FS with options for 0.25% or 0.1% FS. Good long term stability of 0.1% FS over a period of 1 year.

High performance transducer with adjustable scaling for modifying the pressure range for different applications. Ranges from 0-60 bar up to 0-600 bar gauge or absolute. The output signal is accurate to 0.1% of base range or 0.5% with a 10:1 turn-down, and a 14 bit analogue to digital conversion provides a high resolution amplified output. Optional software and interface kit is available for re-ranging the output signal.

Based around a high integrity all welded thin film strain gauge sensing element, this high range pressure transducer is designed for measuring hydraulic pressures up to 2200 bar (~32,000 psi) on equipment such as hydraulic presses, injection moulding machines and other high range monitoring and control systems.

Hydrostatic level sensor with an IP68 sealed electrical connection, stainless steel 316L, Duplex or PVC construction and a passive millivolt strain gauge output signal. Available in level ranges from 10 to 100 mWG gauge or absolute.

Absolute referenced hydrostatic depth sensor with an IP68 sealed electrical interface, stainless steel 316L, Duplex or PVC housing and a mV, amplified voltage or current output. Available in depth ranges from 1 to 10 bar absolute.

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.

Robust cable junction box for terminating vented electrical cable from a 2 wire submersible hydrostatic level transmitter. The inside of the IP66 sealed box is vented to the ambient outside air via a PTFE filter to ensure the level sensor is properly vented to compensate for atmospheric pressure.

The level tape 100 system is used for determine the depth to water level and the bottom of the well graduated in metres by millimetres or feet by 0.01 feet. The reel unit produces an audible buzz when the probe hits the water and the tape goes slack when the probe reaches the bottom of the well.

Level tape 200 system is used for manually measuring the water depth of a well or borehole or for calibrating the water level datum when installing a water level sensor. Manufactured and tested to ASME (American Society of Mechanical Engineers) requirements the water level tape 200 incorporates enhanced features such as heavy duty polyethylene jacketed tape with black print on yellow background for easy reading, sensitivity adjustment via touch pad control for filtering out false readings due to running water, tape tensile strength of 300lb and an included carrying bag

Battery powered submersible data logger for recording level of rivers, reservoirs, boreholes, tidal & coastal waters with ranges from 3.5 mH2O up to 350 mH2O gauge or absolute

Battery powered submersible data logger for recording level of rivers, reservoirs, boreholes, tidal & coastal waters with ranges from 3.5 mH2O up to 350 mH2O gauge with non-linear logging functions and extra memory capacity for recorded data.

The level troll 300 bore hole water level data logger is available in measuring ranges from 10.9 m up to 200.7 mH2O. To compensate for atmospheric pressure the device can be used in conjunction with the Barotroll atmospheric pressure logger or a known value can be entered into the software to adjust the readings.

IP68 sealed hydrostatic level transmitter with a 17mm diameter for lowering into ground water boreholes for environmental monitoring of water level. Available in level ranges from 6 up to 200 metres of water gauge (650 ftH2O gage) with an accuracy of 0.5% full scale.

IP68 mid range pressure transmitter for measuring the level of highly contaminated and agressive liquid media with a body made from PVC. Hydrostatic ranges from 4 mWC up to 100 mWC

IP68 low range pressure transmitter for measuring the level of highly contaminated and agressive liquid media with a body made from PP (Polypropylene) or PVDF. Hydrostatic level ranges from 0.4 up to 100 metres of water column.

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.

SDI-12 protocol transducer for sensing water depth level and temperature in seawater, brackish water, tidal water, saline water or leachate. The digital interface conforms to the requirements of the SDI12 support group and can be used with environment monitoring equipment which supports the SDI12 digital communications interface. A high corrosion resistant ceramic diaphragm is fitted a standard and stainless steel 316L, Duplex or Marine Bronze housing materials can be chosen to suit the application requirements. Measure salt water depth in the ranges starting from 0-10 metres up to 0-100 metres, including absolute non-vented ranges from 1.5 bar up to 10 bar absolute.

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.

Analogue output sensor for immersing in seawater to determine depth or change in water level by measuring hydrostatic pressure. This sea depth probe has a Marine bronze housing and Ceramic diaphragm for protection from saltwater corrosion. Select fixed ranges from 10 metres (33 feet) up to 100 metres (328 feet) depth in a number of analogue output configurations including low voltage strain gauge, amplified voltage and current loop output. Also suitable for use in brackish and inland tidal water or any other application where there is the risk of corrosion form a saline liquid.

Passive compensated pressure transducer with a four arm semiconductor Wheatstone bridge circuit which produces a 100 millivolt with a 10 volt excitation. Pressure ranges from 0-100mbar up to 0-1000bar gauge or absolute. The silicon sensing chip is totally isolated from the media by an oil filled stainless steel 316L capsule with isolation membrane. This sensor is ideally suited for high frequency response applications since the output is only limited by the natural response of the silicon sensing capsule.

Piezo-resistive pressure sensor with a millivolt output direct from a four arm wheatstone bridge strain gauge circuit in pressure ranges from 10 up to 1000 bar gauge.