Soil INS

S8 VIBRATING WIRE SETTLEMENT CELL

DESCRIPTION

The vibrating settlement cell measures settlement and thrust in soil and rock fill. The use of measurement data from the cell can help control further displacement.

The cell consists of a vibrating wire pressure transducer connected through a pair of water-filled nylon tubes to a hydraulic potentiometer located on stable ground.

Vertical movement of the cell relative to its reading location results in a change in liquid pressure within the chamber, which is recorded in meters of water and translated into the amount of settlement or load.

The vibratory settlement cell can take measurements beneath concrete and earth structures in locations that are inaccessible to other types of instruments.

FUNCTIONS

  • 15m and 30m ranges available.
  • Manhole, trench and low profile types available.
  • No vertical rods or pipes to interfere with construction.
  • Twin liquid lines allow recirculation of water through the system after installation.
  • Does not require access above the sensor to acquire data.

BENEFITS

  • Accurate and repeatable readings over long cable lengths.
  • Long life, long-term stability and reliability.
  • Surge protector prevents electrical damage.
  • Connecting cable is firm, shielded and flexible.
  • Measurements are not affected by lateral movements.

    E3 DIGITAL TAPE EXTENSOMETER

    DESCRIPTION

    The digital tape extensometer is a portable device used to measure the displacement between pairs of eyebolts.

    These can be installed on a structure or in an excavation, such as a tunnel or shaft.

    The digital tape extensometer unit comprises a stainless steel tape measure with equally spaced precision drilled holes.

    The tape is wound onto a reel, which incorporates a tape tensioning device and a digital LCD readout.

    FUNCTIONS

    • Measuring range up to 30m.
    • Digital LCD readout provides accurate measurement.
    • Stainless steel tape measure
    • Optical tension indicator.

    BENEFITS

    • Compact, portable and lightweight.
    • Accurate and robust.
    • Simple, reliable and easy to read.
    • Repeatable measurements using the optical tape tension indicator.
    • Can be operated by one person
    • One instrument can read multiple matrices.

      C17-PRO VERTICAL DIGITAL INCLINOMETER SYSTEM

      DESCRIPTION

      The PRO Digital Vertical Inclinometer System is used to measure lateral deflections within a pit. The system comprises a biaxial probe, a cable reel and an ultra-rugged field tablet supplied with ‘In-Port Pro’ data capture software.

      The probe incorporates MEMS technology which allows highly accurate and repeatable readings, transferred via a digital signal. Bluetooth communication allows for a cable-free data transmission system with no connectors to corrode or break.

      The rugged Kevlar® reinforced cable consists of a non-slip cable marker system that, when used in conjunction with the cable gate, provides highly accurate and repeatable depth control.

      With all of these features combined, the PRO Digital Vertical Inclinometer System is a rugged and highly accurate system that is lightweight, compact and easy to operate anywhere in the environment.

      FUNCTIONS

      • There are no connectors between the probe, cable reel and field tablet.
      • The probe is made of 316 stainless steel.
      • Precision suspension wheel assemblies.
      • Bluetooth connection between cable reel and field tablet.
      • Accurate and precise measurements using MEMS sensors.
      • Repeatable depth control using low wear stainless steel markers and cable gate system.
      • Ultra-rugged field tablet allows for easy data transfer.
      • Enhanced ‘In-Port Pro’ software for use with Field Tablet for easy data capture.
      • Large 8″ high visibility touch screen display.

      BENEFITS

      • Molded cable connection eliminates water ingress and connection problems.
      • Digital signal allows for interference-free data transmission.
      • Advanced electronics ensures long, trouble-free use in a harsh environment site.
      • Easy data transfer via Bluetooth, direct connection or internet using Wi-Fi or GSM network.
      • Waterproof field tablet for continuous use in hostile environments.
      • Very long battery life.
      • Lightweight and easily portable.

        W7 WATER LEVEL METER

        DESCRIPTION

        Water level meters are used to measure the depth of water in pipes, manholes and boreholes.

        The meter consists of a stainless steel probe installed on a graduated, flexible cable that is wound on a hand reel containing a transistorized switched circuit, audio (buzzer) and visual (LED light) indicators, and a battery.

        The meter is easy to use and because it is portable, it can be used in many locations. The design of the tape prevents it from sticking to wet surfaces, such as a well casing, ensuring accurate measurements.

        There are two versions of the water level gauge; one with a small diameter probe and one with a standard probe. The standard probe version is also available with an optional digital temperature indicator.

        FUNCTIONS

        • One instrument can read in many places.
        • Contoured tape for accurate readings.
        • Tape range; 30m-500m with 1mm divisions.
        • Light weight.
        • Simple, reliable and easy to operate.
        • Audible (buzzer) and visual (lights) water level warning signals.
        • Sensitivity adjustment for variations in water conductivity.
        • Digital temperature indicator option.
        • Non-elastic polyethylene coated steel tape.
        • Ø12 mm thin probe available.

        BENEFITS

        • Easily portable
        • Tape design prevents tape from sticking to wet surfaces.
        • Economical water level monitoring.
        • Ideal for small diameter manholes.

          W4 HEAVY DUTY VIBRATING WIRE PIEZOMETER

          DESCRIPTION

          The heavy duty vibrating wire piezometer accurately measures pore water pressures in fully or partially saturated soils.

          The heavy duty design prevents casing stresses from affecting readings in extreme installations (dams and high soil stresses). The transducer is equipped with either a low air inlet sintered steel or a high air inlet ceramic filter. It has a cone-shaped part for pushing in installations.

          The transducer is made of high quality 316 grade stainless steel and designed for pressure ranges from -50 to 15,000 kPa.

          The heavy-duty vibrating-wire piezometer incorporates a surge arrester to provide protection against indirect lightning. The piezometer is also available with a thermistor for temperature monitoring.

          FUNCTIONS

          • Heavy duty design.
          • Utilizes proven vibrating wire (VW) technology.
          • Manufactured from high quality 316 stainless steel for long life operation.
          • Built-in temperature compensation
          • Hermetically sealed.
          • High precision device.
          • Capable of measuring negative pore pressures to -50 kPa.
          • Available with thermistor for temperature monitoring.
          • Accurate and repeatable readings over long cable lengths.

          BENEFITS

          • Long life, long-term stability and reliability.
          • Works in extreme installations and pressures up to 15000kPa.
          • Fast response to pressure changes.
          • Advanced design prevents case stresses from affecting readings.
          • Surge protector prevents electrical damage.
          • Connecting cable is firm, shielded and flexible.

            W9 STANDARD VIBRATING WIRE PIEZOMETER

            DESCRIPTION

            The standard vibrating wire piezometer provides accurate measurement of pore water pressures in fully or partially saturated soils.

            The transducer is made of high quality 316 grade stainless steel and designed to handle pressure ranges from -50 to 4000 kPa. It incorporates a built-in surge protector.

            The piezometer can be equipped with sintered steel low air inlet, or ceramic high air inlet filters.

            A cone-shaped part is available for push in installations.

            An integral thermistor is included for temperature monitoring.

            FUNCTIONS

            • Small diameter.
            • Utilizes proven vibrating wire (VW) technology.
            • Manufactured from high quality 316 stainless steel for long life operation.
            • Built-in temperature compensation.
            • Hermetically sealed.
            • Suitable for long-term monitoring.
            • No electronic components in the sensor module.
            • Capable of measuring negative pore pressures to -50 kPa.
            • Equipped with thermistors for temperature control.

            BENEFITS

            • Accurate and repeatable readings over long cable lengths.
            • Long service life, long-term stability and reliability.
            • Fast response to pressure changes.
            • Design prevents casing stress from affecting readings.
            • Surge protector prevents electrical damage.
            • Connecting cable is strong, shielded and flexible.

              W16 KOMPAKT VIBRATING WIRE PIEZOMETER

              DESCRIPTION

              The Kompakt vibrating wire piezometer provides accurate measurement of pore water pressures.

              The transducer is designed to handle pressure ranges from 0 to 1000 kPa. It incorporates a built-in surge protector.

              The piezometer is equipped with a sintered stainless steel low air inlet filter.

              An integral thermistor is included for temperature monitoring.

              FUNCTIONS

              • Small diameter.
              • Utilizes proven vibrating wire (VW) technology.
              • Built-in temperature compensation.
              • Hermetically sealed.
              • No electronic components in the sensor module.
              • Equipped with thermistors for temperature control.

              BENEFITS

              • Accurate and repeatable readings over long cable lengths.
              • Fast response to pressure changes.
              • Design prevents casing stress from affecting readings.
              • Surge protector prevents electrical damage.
              • Connecting cable is strong, shielded and flexible.

                E17 ROD EXTENSOMETER SYSTEMS INSTRUMENTS

                Description

                The Rod Extensometer system accurately measures settlement and/or heave at single or multiple anchor points in a borehole at its reference head.

                The system employs up to eight rods, anchored along the axis of a borehole, terminating in the reference head at the borehole entrance.

                Displacement along the axis of the borehole from the anchor is monitored by measuring the movement of the top of the rod relative to the reference head.

                The Rod Extensometer is available pre-assembled to specified lengths or as an assemble on site system.

                A versatile range of options are available for Rod Extensometers:

                • Automatic or manual reading
                • Hydraulic anchoring for soil
                • Groutable anchoring for rock
                • Multiple or single point rod reference heads

                Features

                • Rods and heads are delivered pre-assembled to customer specified lengths
                • Various anchor types available according to soil conditions and installation method
                • Manual or remote monitoring
                • Remote option uses Vibrating Wire displacement transducers
                • Up to 8 measuring points per borehole

                Benefits

                • Installation in drillholes or boreholes at any orientation
                • Quicker installation than conventional rod extensometer systems
                • Fibreglass less sensitive to temperature changes than steel
                • Particularly useful in confined areas For borehole diameters up to 200mm