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Portable MEMS Inclinometer

The MEMS Portable Inclinometer System utilises the very latest in Bluetooth and MEMS (Micro-Electro-Mechanical) technology to provide fast and highly accurate readings.

The system comprises a slimline probe (detachable), lightweight cable reel and a rugged PDA (Personal Digital Assistant) which is used to view and/or download data at the borehole.

The probe is fitted with guide wheels and contains MEMS accelerometers measuring tilt in two perpendicular planes: One in the plane of the inclinometer wheels is known as the A axis; the other, in a plane perpendicular to that of the wheels, is known as the B axis.

Kevlar® reinforced cable is mounted on a lightweight, tough plastic reel which houses the Bluetooth module for wireless communication to the PDA. The cable is attached to the probe via a waterproof (to 1500m) quick connection which allows the probe to be detached, significantly reducing transport costs when returned for re-calibration.

The probe contains ‘on board’ calibration making it completely interchangeable with any reel. A MEMS Spiral Sensor is also available and is also compatible with any reel.

Inclinometer Casing QJ

Geosense® QJ Inclinometer Casing is a quick connecting casing, precision extruded from ABS, with four precise keyways formed at 90 degrees which allow accurate installation of portable and in-place inclinometers.

The quick connecting joint makes it faster and easier to install than traditional glue & socket inclinometer casing with external couplers and does not require any special tools or tapes. On deep installations the time saving is significant.

It can be used in boreholes, fill material, cast into concrete or attached to structures and is designed to move with the ground, material or structure to provide inclination information over a period of time.

As the casing is designed to deform with movement of the ground or structure the useful life of the casing ends when the continued movement of the casing causes deformation of shear so that the inclinometer probe can no longer be placed into the casing. Larger casing generally ensures a longer life.

Where vertical settlement or heave is anticipated to be greater than 2% it is recommended to use telescopic sections to eliminate axial load on the casing which would cause excessive buckling.

A full range of accessories including bottom and top caps, anchors and groutable anchors are available and can be used in conjunction with magnetic targets for combined inclinometer/magnetic extensometers.

Inclinometer Casing XC

Geosense® XC (External Coupler) Inclinometer Casing is a precision extruded from ABS, with four precise keyways formed at 90 degrees which allow accurate installation of portable and in-place inclinometers.

Standard joints are made by using external couplers which are glued to each end of the casing. Telescopic sections are riveted together to allow movement during settlement and sealed with mastic and tape to prevent the ingress of water and grout.

Advantages of the XC Inclinometer casing is that it can be cut and re-joined on site allowing maximum flexibility and makes any damage easily repairable.

It can be used in boreholes, fill material, cast into concrete or attached to structures and is designed to move with the ground, material or structure to provide inclination information over a period of time.

As the casing is designed to deform with movement of the ground or structure the useful life of the casing ends when the continued movement of the casing causes deformation of shear so that the inclinometer probe can no longer be placed into the casing. Larger casing generally ensures a longer life.

Where vertical settlement or heave is anticipated to be greater than 2% it is recommended to use telescopic sections to eliminate axial load on the casing which would cause buckling.

Data Logger UnilogCom 3G+

Wide-ranging applications, high capacity, multi-channel data logger with integrated cellular modem.

Large 16 MB ring memory for 1,120,000 measurements.

Compact plastic housing for wall mounting.

Backlit LCD with three multi-function buttons to display current measured values ​​and system state.

Transfer Options: mobile data retrieval, FTP Push, TCP push, SMS push, SMS Alarms.

Connectivity of digital and analog probes.

In-place Inclinometer

The Geosense® In-Place Inclinometer System (IPI) measures tilt and is used to calculate rotation and/or displacement in a vertical, inclined, or horizontal orientation. It is available in either a Uniaxial or Biaxial version.

The system consists of a series of wheeled sensors placed at various depths within the casing which are connected together either with extension rods or wire rope.

A digital bus system consisting of one single cable runs the length of the chain of connected sensors eliminating the need for a separate cable for each sensor and thus reducing the amount of cable required.

The extension rod system (IPI-ER) uses specially-designed connection rods to link sensors which allows them to move independently to each other without influencing the sensors above or below. This provides a profile of displacement over the complete length of the installation and the extension rod lengths can be varied to suit individual gauge length requirements. Sensors can also be concentrated in areas where movement is expected.

The wire rope system (IPI-WR) is used where only specific zones are of interest rather than the profile of the entire borehole.

Spiral Sensor

The MEMS Inclinometer Spiral Sensor is used to determine down-hole helical deformation of installed inclinometer casing. Installed casing spiral is a function of the manufacturing process, casing coupling, and installation technique.

It can be used with any vertical inclinometer system by using the same cable, reel, and hand-held readout. It is only necessary to read one data set; no 180 degree second reading set is required. Inclinalysis™ Inclinometer Software processes the resulting spiral data set.

Slip Indicator System

The Geosense® Slip Indicator comprises a flexible pipe with base plate which is inserted into the base of a borehole and surrounded with sand. When a lateral differential movement of the soil occurs, the flexible tube will become deformed in the zone of movement. Indicator probes, attached to a length of support rope, are used to determine the zone of movement.

TiltArray

Multi-parameter sensor for detecting pressure, temperature and conductivity.

High-quality 4-electrode conductivity measuring cell.

Ceramic-capacitive pressure sensor with high measuring accuracy (0.05% FS) and long-term stability (0.1%/year).

Sturdy, sleek Ø 22 mm grade 1.4539 stainless-steel housing for extreme conditions.

Output: RS485, Option: MOD-BUS, SDI-12, 4-20 mA.

NTC30 temperature sensor with 0.1°C accuracy.

Optional with integrated data logger: variant "Dipper-PTEC".

MEMS In-Place Tilt Meter

The Geosense® MEMS In-Place Tilt Meter measures uniaxial or biaxial tilt, which is measured from the plane(s) perpendicular to the base.

It is designed to be installed in either the vertical or horizontal position by either bonding, bolting or strong magnetic fixing directly to a structure or mounting plate.

The tilt sensors, based on well-established MEMS technology, are mounted within a rugged, heavy-duty waterproof die-cast metal enclosure suitable for the harsh environments found within construction and building industries.

Thermal effects of the MEMS sensor is minimal but in order to compensate for the effects of temperature on the enclosure, mountings and structure, the unit is fitted with an integral thermistor.

The digital RS-485 output signal provides the ultimate in accuracy together with the advantage of being able to create a digital BUS system where all sensors can be linked together and cable quantities significantly reduced.

MEMS Analogue Submersible Tilt Meter

Geosense® Submersible Tilt Meters are designed to measure tilt on submerged structures either on a vertical, inclined or horizontal surface.

They consist of highly accurate MEMS sensors mounted in robust watertight stainless steel housing which can be attached to the structure by bolting, bonding or welding.

Each unit is individually calibrated to provide the ultimate in system accuracy and repeatability and can be used in conjunction with a hand held readout, automatic data acquisition system and Wi-SOS to provide a wireless monitoring solution.

MEMS Digital Submersible Tilt Meter

Geosense Submersible Tilt Meters are designed to measure tilt on submerged structures either on a vertical, inclined or horizontal surface.

They consist of highly accurate MEMS sensors mounted in robust watertight stainless steel housing which can be attached to the structure by bolting, bonding or welding.

Each unit is individually calibrated to provide the ultimate in system accuracy and repeatability and can be used in conjunction with a hand held readout, automatic data acquisition system and Wi-SOS to provide a wireless monitoring solution.

MEMS Tilt Beam

Geosense® MEMS Tilt Beams are designed for attachment to structures, on either a vertical or horizontal surface, for the measurement of tilt or differential settlement.

They consist of a highly accurate MEMS sensor housed in a fully sealed enclosure which is mounted on a lightweight rigid GRP beam. This can be mounted onto the structure using special anchors. The GRP beam has a very low coefficient of thermal expansion meaning that thermal affects are minimised.

Both ends of the beam are fixed and when multiple beams are placed end to end, a differential displacement profile of the structure from anchor point to anchor point can be derived.

Data Transmission via the IRIDIUM Satellite

Robust satellite modem for global and nation-wide data transfer (incl. polar regions).

Direct connection to SEBA measurement data collector Unilog.

EL In-Place Tilt Meter

The Geosense® Digital EL In-Place Tilt Meter measures uniaxial or biaxial tilt, which is measured from the plane(s) perpendicular to the base.

It is designed to be installed in either the vertical or horizontal position by either bonding, bolting or strong magnetic fixing directly to a structure or mounting plate.

The tilt sensors, based on well-established Electrolytic technology, are mounted within a rugged, heavy-duty waterproof die-cast metal enclosure suitable for the harsh environments found within construction and building industries.

Vibrating Wire Piezometers

Geosense® VWP-3000 Series of Vibrating Wire piezometers use the well-proven method of converting fluid pressures on a sensitive diaphragm into a frequency signal.

Frequency signals are particularly suitable for the demanding environment of Civil Engineering applications, since the signals are capable of long transmission distances without degradation, tolerant of wet wiring conditions and resistant to external electrical noise.

The tilt sensors, based on well-established Electrolytic technology, are mounted within a rugged, heavy-duty waterproof die-cast metal enclosure suitable for the harsh environments found within construction and building industries.

Strain Gauge Piezometer

The Geosense® SGP-3400 Series of strain gauge piezometers are designed for monitoring soil pore pressure or changes in water level and are also suitable for dynamic monitoring such as pumping tests.

They are accurate, highly-reliable and suitable for use in the harsh environments often found within civil engineering including water wells, boreholes, dams, reservoirs, rivers, tanks or any other body of water.

The sensor is housed in a robust stainless steel sealed body with a porous filter tip, which are available in different porosities to suit specific site conditions.

It comprises a highly sensitive stainless steel diaphragm onto which a Wheatstone bridge strain gauge is mounted and connected to a signal-conditioning board to convert to a 4-20mA output within the piezometer housing.

Water Level Meter

A Water Level and Temperature Meter is used to determine the water level and temperature within a borehole, piezometer pipe or sump.

It consists of a stainless steel shrouded probe with a specially designed conductive probe to minimise displacement errors, providing unparalleled accuracy particularly in small bore piezometers.

As the probe is lowered into the water, a single audible buzz is heard and a red light shows.

The temperature is shown in degrees Celsius on an LCD digital display mounted on the side of the reel.

Mounted on a rugged lightweight drum with integral brake and probe holder for easy operation and storage and has all the same features as the standard water level meter.

Multi-Point VW Piezometer

Fully grouted installation permits multiple piezometers to be simply and reliably installed in a single borehole. The piezometer string and grout pipe are placed in the borehole and cement-bentonite grout is pumped until the borehole is filled.

Multi-point Piezometer Strings allow for multiple Vibrating Wire Piezometers to be connected on a single cable. This facilitates the installation of fully grouted multiple piezometers. The single cable prevents vertical void channels. Tough urethane jacketed, Kevlar® reinforced, non-stretch cable is employed to withstand the rigours of installation and is entirely water-blocked to minimize any leakage. No conductors are shared to maximize independent reliability of each sensor.

Vibrating Wire Piezometers provide excellent long-term accuracy, stability of readings and reliability under demanding geotechnical conditions. Vibrating Wire Piezometers are the electrical piezometers of choice as the frequency output of vibrating wire devices is immune to external electrical noise, and able to tolerate wet wiring common in geotechnical applications.

Standpipe Piezometer

Simple and economic measurement of groundwater pressures in soil and rock can be carried out using Casagrande type piezometers.

Geosense® piezometers are made up of low air entry porous plastic or ceramic elements which are connected to standpipe tubing and lowered into a predrilled borehole. Alternative types may be driven or pushed into soft soil.

Where Casagrande type piezometers are being installed then the porous element is surrounded by filter sand and a Bentonite seal placed above this response zone.

VW Pressure Transducer

The Geosense® VWT-9000 Series of Pressure Transducers are designed to be connected directly into hydraulic or pneumatic pressure lines by means of a 1/4” BSPF thread. Other thread sizes are available on request.

They are typically used to monitor uplift pressures within dams and to enable manual standpipe piezometers to be upgraded into an automated data acquisition system.

They are accurate, highly-reliable and suitable for use in the harsh environments often found within civil engineering including water wells, boreholes, dams, reservoirs, rivers, tanks or any other body of water.

Vibrating Wire technology is a well-proven method of converting fluid pressures on a sensitive diaphragm into a frequency signal which is capable of long transmission distances without degradation, tolerant of wet wiring conditions and resistant to external electrical noise.

Magnetic Extensometers

The Geosense® GEO-XM settlement system is a magnet extensometer system used typically to monitor settlement and heave in foundations, excavations and embankments.

Data received identifies the depth and position where settlement has occurred as well as the total amount of settlement.

It can also be installed behind retaining structures, such as sheet piles and slurry walls, and above underground openings, such as tunnels and shafts.

The system comprises a central access tube along which magnetic targets are positioned at various locations. Settlement is measured by the relative position of the magnetic targets using a Reed Switch Probe lowered down through the central access casing.

Reed Switch Probe

The Reed Switch Probe is used to determine the location of magnetic sensors in magnetic settlement systems.

When the reed switch passes through a magnetic field, it closes; completing a circuit and a buzzer is activated.

Borehole Rod Extensometer

The Geosense® GEO-XB2 borehole rod type extensometer range is used to measure and locate settlement, displacement and deformation in soil and rock.

It consists of a reference head and one or more in-hole anchors each of which is placed at a known depth and connected to the reference head by either a rigid or flexible rod running inside a flexible sleeve, which keeps the rod de-bonded from the grout.

As the soil or rock deforms the distances between the in-hole anchors change, as do the distances between the individual in-hole anchors and the reference head. The magnitude, distribution and rate of deformation can be accurately measured at the reference head.

The GEO-XB2 rod type extensometer range is available in a wide range of reference heads, anchors, rods and measuring sensors.

VW Soil Extensometer

The Geosense® GEO-XS VW Soil Extensometer monitors lateral and longitudinal deformation of soil and different types of embankments and embankment dams

It comprises a displacement transducer connected to an extension rod and fixed between a pair of anchor beams.

The assembly is housed in and protected by an external telescopic sleeve. To form a ‘Chain Extensometer’, Soil Extensometers are linked together, in series, using the anchor beams as connectors.

As structural movement occurs, the rod is moved within the housing. The shaft movement changes the tension in the sensor spring which, in turn, changes the tension in the Vibrating Wire.

Wire Deformeter Geo-DW300

The GEO-DW300 Wire Deformeter is designed to monitor the changes in distance between two anchor points and is available with either vibrating wire or potentiometer transducers. A stainless steel wire connects the transducer to the opposing anchor.

The mounting plate holds the transducer at one end and a pulley at the other end. A stainless steel wire connects the transducer to the opposing anchor. The pulley allows the transducer and anchor to be mounted on different planes, including perpendicular surfaces, up to 10m apart. The spring-loaded transducer keeps the steel wire tensioned.

Typical applications include monitoring cracks or displacements in civil structures.

Wire Deformeter Geo-DW300

The GEO-XW100 Wire Extensometer is designed to monitor the changes in distance between two anchor points up to a maximum of 30 metres apart.

It comprises a rotary potentiometric displacement gauge, an opposing anchor and a stainless steel wire that runs between the displacement gauge and the opposing anchor. With a wire extension kit, the length of the wire can be extended up to a maximum distance of 30 metres.

The displacement gauge is housed within a rugged steel enclosure with a mounting plate for horizontal or vertical mounting.

Tunnel Profile Monitoring

The Tunnel Profile Monitoring System is a series of linked rods, fixed to the tunnel wall, to monitor deformation. A data logging system and related software is available to provide near real time displacement and generate a graphical representation of tunnel performance.

A system of linked arms is affixed to the tunnel wall. Each arm is fitted with a high accuracy displacement sensor and precision tilt meter. Spatial displacement of the pins and arms results in changed tilt and displacement readings. The data logger system automatically collects the data and transmits it to a computer. The computer then analyzes the data, and calculates the displacement profile for presentation.

The system is available in either open or closed loop configurations. The closed loop method is analogous to conventional closed end survey techniques, while the open loop must be referenced to a known location.

Digital Tape Extensometer

The Digital Tape Extensometer is a portable device used for measuring displacement between reference anchors fixed to an excavation or structure.

The instrument consists of a precision punched steel tape incorporating a repeatable tensioning system and dial gauge readout. The tape winds onto a reel, which incorporates a tape tensioning device and a digital LCD readout.

The body of the extensometer has a hook connector that connects to the first eyebolt. An identical hook on the free end of the tape connects to the opposing eye bolt. The user then tensions the instrument and records the readings from the digital LCD display. The measurements are not absolute, but relative to the previous measurement. This provides an accurate record of displacement over time.

VW Displacement Gauge 5000

Geosense® VWDT-5000 series of vibrating wire displacement transducers cover displacement ranges up to 300mm and are fully waterproof to a minimum of IP68 (16 bar external pressure). They can be incorporated into many displacement products such as crack and joint meters, convergence meters, soil extensometers and displacement meters.

VWDT-5000 transducers are particularly rugged, and are carefully constructed and thermally aged to minimise long term drift and changes in calibration. The gauges will withstand demanding environmental factors encountered in Civil Engineering construction sites such as tunnels and piling applications

The data from the VWDT-5000 can be monitored by means of a portable read-out unit or connected to a data logger and distributed if required by telemetry.

VW 3D Crack Meter 4600

Geosense® VWTCM-4600 3D crack meters monitor three-way displacement across cracks and joints in concrete, rock, soil and structures.

The central reference block allows the vibrating wire transducers to show independent movement in all directions, irrespective of each other.

The VWTCM-4600 comprises a 3D mounting frame comprising two arms and two groutable anchors. Three vibrating wire displacement transducers, which also monitor temperature, are installed in the mounting frame.

Groutable anchors are installed either side of a joint or crack; the installation jig provided ensures that the two anchors are positioned correctly. Once they are set in position the installation jig is removed and the VW transducers installed. They are positioned against the reference block and typically set to their mid-point.

LP Crack Meter 4500

Geosense® LPCM-4500 crack meters are used to measure movement across surface cracks and joints in concrete, rock, soil and structures.

They consist of a potentiometric displacement transducer housed in an aluminium body with a stainless steel shaft with two anchoring points.

The potentiometer works on the principle of an outer body tube and an inner free-sliding wiper which makes electrical contact along a strip of fixed resistance. A regulated DC voltage is applied to the two ends of the resistance strip and the voltage between one end of the strip and the contact point of wiper and strip is measured as the output signal. On board signal conditioning provides an output signal in 4-20mA.

LPCM-4500 crack meters are installed by grouting, bolting, bonding or fixing expandable anchors to the structure to be monitored. The anchors incorporate ball joints where they are fixed to the gauge which accommodate any differential cross-axis movement and prevent the inner rod from binding within the outer casing

VW Crack Meter 4000

Geosense® VWCM-4000 crack meters are used to measure movement across surface cracks and joints in concrete, rock, soil and structures

They consist of a sensor outer body tube and an inner free-sliding rod which is connected at the internal end to a vibrating wire sensor by a spring. At the sensor end of the outer body and the external end of the rod anchors are attached which can be fixed either side of a crack to be monitored.

The gauge operates on the principle that a tensioned wire, when plucked, vibrates at its resonant frequency. The square of this frequency is proportional to the strain in the wire. Around the wire is a magnetic coil which when pulsed by a vibrating readout or data logger interface plucks the wire and measures the resultant resonant frequency of vibration.

A change in distance between the anchors caused by the crack opening or closing causes the inner free-sliding rod to move within the outer body which changes the tension on the spring and the vibrating wire thus altering the resonant frequency of the wire.

Manual 3D Crack Meter

The Geosense® manual 3D crack meters are designed to monitor three way displacement (X, Y and Z) across joints or cracks between adjoining concrete and rock structures.

It comprises of two steel blocks A & B. One (A) having flat machined discs mounted on the X,Y, Z axes and the other (B) having matching machined discs through which the stem of a manual dial gauge can be placed to measure any movement in any axis.

The re-bar anchors on the bottom of each block are grouted adjacent to each other into the structure that is being measured.

LP Displacement Gauge 5500

Geosense® LPDT-5500 series of linear potentiometer displacement gauges cover displacement ranges up to 300 mm.

They can be incorporated into many displacement products such as rod extensometers, crack and joint meters, convergence meters, soil extensometers and displacement meters.

Constructed from aluminium alloy and stainless steel they are lightweight but robust making them ideal for the harsh environments found within civil engineering.

VW Joint Meter

The Geosense® Vibrating Wire Joint meter is developed to monitor joints of mass concrete structures.

The Geosense® Vibrating Wire Joint meter is developed to monitor joints of mass concrete structures.

Opening and closing of joint is then measured by the gauge, which is firmly anchored in both blocks. The instrument body includes universal joints, on which sensing element is mounted, accommodating a small degree of shear movement that might occur.

INFODATASHEETSDATA HANDLINGAPPLICATION The Geosense® Vibrating Wire Joint meter is developed to monitor joints of mass concrete structures. The instrument consists of two parts, a socket and the main body with a waterproof vibrating wire sensing gauge. During construction of the structure, the socket is secured to the form and embedded into a lift of the block to be constructed. After removal of the form, and prior to concreting of adjacent block, the gauge is screwed into the socket, set at the desired range and then embedded into concrete. Opening and closing of joint is then measured by the gauge, which is firmly anchored in both blocks. The instrument body includes universal joints, on which sensing element is mounted, accommodating a small degree of shear movement that might occur. The vibrating wire joint meter is a robust and accurate instrument with excellent long-term stability. It can be measured by vibrating wire portable readout units or a data logger if remote continuous monitoring of the joints is required. All measurements are compared to an initial datum reading, providing a history of magnitude and rate of movement at the joint.

Liquid Settlement System

The Geosense® VWLSS-200 Vibrating Wire Liquid Settlement System is used to monitor settlement or heave in soils and other structures such as embankments, earth and rockfill dams.

The main components are a reservoir (single or multiple), liquid-filled tubing and a vibrating wire pressure transducer cell mounted on a plate or, for borehole application, attached to an anchor.

The vibrating wire sensor is attached to a settlement plate at the point of estimated settlement. The sensor is connected via two liquid-filled tubes which are connected to a reservoir located on stable ground.

Magnetic Extensometers

The Geosense® GEO-XM settlement system is a magnet extensometer system used typically to monitor settlement and heave in foundations, excavations and embankments.

Data received identifies the depth and position where settlement has occurred as well as the total amount of settlement.

It can also be installed behind retaining structures, such as sheet piles and slurry walls, and above underground openings, such as tunnels and shafts.

It can also be installed behind retaining structures, such as sheet piles and slurry walls, and above underground openings, such as tunnels and shafts.

Magnetic Extensometers

The Geosense® GEO-XM settlement system is a magnet extensometer system used typically to monitor settlement and heave in foundations, excavations and embankments.

Data received identifies the depth and position where settlement has occurred as well as the total amount of settlement.

It can also be installed behind retaining structures, such as sheet piles and slurry walls, and above underground openings, such as tunnels and shafts.

It can also be installed behind retaining structures, such as sheet piles and slurry walls, and above underground openings, such as tunnels and shafts.

Rod Settlement System

Geosense® GEO-XR single point rod settlement system is used to monitor sub-surface settlement or heave of ground.

The system comprises a series of inner steel rods and plastic outer sleeves together with plates when positioned on ground before fill or Borros type anchors when used in boreholes.

The inner steel rod is made from heavy duty 1metre lengths of 25mm outside diameter with a 3/4” BSPM thread with external socket

The outer plastic sleeves in 1metre lengths can be 60mm (2”) or 165 mm (6”) diameter with flush threads so that the inner and outer rod can be extended together.

A circular or square thick steel plate with a 3/4” BSPF socket welded onto it allows the datum plate to be placed and the first inner rod connected. Outer sleeves are placed over the steel rods as filling occurs.

VW Settlement Profiler

The Geosense® Vibrating Wire Settlement Profiler is used for the measurement of subsurface settlement.

Working principle: A vibrating wire sensor is located within a probe that can be pulled through a buried pipe or borehole. The sensor is connected via a liquid-filled tube mounted on a reel which is mounted horizontally at the reservoir location on stable ground. The reel is free to turn as the probe is pulled through the pipe or borehole.

The sensor measures the hydraulic head of liquid between the sensor and the reservoir locations.

VW Anchor Load Cell

Geosense® VWLC 5000 series Vibrating Wire Anchor Load Cells consist of a cylinder of high strength steel with 3 to 6 vibrating wire strain sensors (depending on capacity) mounted parallel to the longitudinal axis arranged equidistant around the circumference which measure the compression of the cylinder under load.

They are manufactured with a centre hole to accommodate anchors, rock bolts and tendons.

With the multi-sensor configuration it is possible to obtain accurate readings under mildly eccentric loading conditions as the sensors are read individually.

VW Anchor Load Cell

Geosense® VWLC 5000 series Vibrating Wire Anchor Load Cells consist of a cylinder of high strength steel with 3 to 6 vibrating wire strain sensors (depending on capacity) mounted parallel to the longitudinal axis arranged equidistant around the circumference which measure the compression of the cylinder under load.

They are manufactured with a centre hole to accommodate anchors, rock bolts and tendons.

With the multi-sensor configuration it is possible to obtain accurate readings under mildly eccentric loading conditions as the sensors are read individually.

Hydraulic Anchor Load Cell

The Geosense® HLC-6000 series Hydraulic Anchor Load Cells consist of a sensitive pressure pad formed by joining two stiff steel discs at their periphery. The void inside the cell is filled with de-aired fluid. When load is applied to the cell the pressure of the inside liquid changes. The changes in pressure correspond directly to the load applied.

Manufactured with a centre hole to accommodate anchors, rock bolts and tendons.

Mounting surfaces should be flat and parallel for optimum performance and the use of very stiff abutment plates and load distribution plates is recommended.

Strain Gauge Anchor Load Cell

The Geosense® SGLC 7000 series load cell consists of a cylinder of high strength steel with a series of electrical resistance strain gauges connected around the periphery as a Wheatstone Bridge that compensates for unevenly distributed loads and provides a single mV/V signal output.

They are manufactured with a centre hole to accommodate anchors, rock bolts and tendons

When the load cell is subjected to load the resistance of the strain gauges will change and the output signal is directly proportional to the applied load. The load cells are compensated for temperature variations often found during normal operating environments and have in-built lightning protection.

Connection to the load cell is via a heavy duty multi-core sheathed cable which can be connected to a direct portable readout, switched terminal units or a data logging system. Mounting surfaces should be flat and parallel for optimum performance and the use of abutment plates and load distribution plates is recommended

VW Solid Load Cell

The Geosense® VWLC 5050 series of Vibrating Wire Load Cells consist of a solid cylinder of high strength steel with 3 vibrating wire strain sensors mounted parallel to the longitudinal axis arranged equidistant around the circumference which measure the compression of the cylinder under load.

With the multi sensor configuration it is possible to obtain accurate readings under mildly eccentric loading conditions as the sensors are read individually

The readings from the individual sensors are averaged and when used in conjunction with a calibration factor, supplied with each cell, allow the applied load to be calculated.

The Geosense® VWLC 5050 series is typically used to measure and monitor compressive load or force in structural members, struts and piles.

Strain Gauge Solid Load Cell

The Geosense® SGLC 7050 series load cell consists of a solid cylinder of high strength stainless steel with a series of electrical resistance strain gauges connected around the periphery as a Wheatstone Bridge that compensates for unevenly distributed loads and provides a single mV/V signal output.

It is most commonly used to measure load acting on piles, struts, arch supports and props.It is most commonly used to measure load acting on piles, struts, arch supports and props.

When the load cell is subjected to load the resistance of the strain gauges will change and the output signal is directly proportional to the applied load. Mounting surfaces should be flat and parallel for optimum performance and the use of loading cap for strut monitoring is recommended.

Connection to the load cell is via a heavy-duty multi-core sheathed cable which can be connected to a direct portable readout, data logging or Wi-SOS 400 system.

Hydraulic Solid Load Cell

The Geosense® HLC-6050 series of Hydraulic Load Cells consist of a sensitive pressure pad formed by joining two stiff steel discs at their periphery. The void inside the cell is filled with de-aired fluid. When load is applied to the cell the pressure of the inside liquid changes. The changes in pressure correspond directly to the load applied.

Mounting surfaces should be flat and parallel for optimum performance and the use of very stiff bearing plates and load distribution plates is recommended.

The Geosense® HLC-6050 series is typically used to measure and monitor compressive load or force in structural members, struts and pile

NATM Pressure Cell

Geosense® NPC-3000 Series NATM Pressure cells are designed to monitor stress of shotcrete in the construction of tunnels, particularly those using the New Austrian Tunnel Method and other underground works. Monitoring of the radial and tangential stresses within shotcrete linings is vital to its success.

Mounting surfaces should be flat and parallel for optimum performance and the use of very stiff bearing plates and load distribution plates is recommended.

The cells are constructed from two stainless steel plates welded around their periphery with the narrow gap between the plates filled with hydraulic fluid.

As the stress increases within shotcrete or concrete the fluid pressure within the cell rises as the plates are squeezed together.

A length of stainless steel tube connects the plates to a pressure transducer (VWDT 5000 or SGT 3000) that converts the pressure to an electrical signal which can be read directly with a MP12 readout or data logged.

Total Earth Pressure Cell

TPC-4000 series Total Earth Pressure cells are designed to measure total pressure (effective stress and pore water pressure) in soils and at the interface between structures and the wall of excavation.

They are constructed from two stainless steel plates, welded around their periphery with the narrow gap between the plates filled with hydraulic fluid.

External pressure on the outside surfaces of the cell squeezes the two plates together creating an internal fluid pressure. A length of stainless steel tube connects the cell to a pressure transducer which converts the fluid pressure into an electrical signal which can be directly readout or transmitted to a data logging system

Models 4010 and 4020 are designed to measure soil pressures on structures. It is fitted with an extra thick back plate on one side which is placed against the structure so as to avoid any warping of the cell. The other side has a thin plate welded to the back plate which provides sensitive measurement of soil pressures.

Push-in Pressure Cell

A Push-in Pressure Cell, also called Spade Cell, is designed to be pushed into the ground where it can measure total earth pressure and pore water pressure within the soil. It can be used as a site investigation tool to determine the in-situ stress state, both vertical and horizontal, depending on the direction of installation. In addition, it can be used to monitor the change in active and passive pressure around retaining structures (diaphragm walls etc) as well as in tunnelling, and other earthworks. Typical installations are in fine grained cohesive soils, including very soft to stiff clays.

Construction consists of two longitudinal stainless steel plates, welded together around their periphery. The annular space between these plates is filled with de-aired glycol. A port and filter for pore water pressure measurement are located on one of the flat sides of the support plate behind the pressure sensitive section of the cell.

The pressure cell and the port for the pore water pressure are connected via stainless steel tubes to two pressure transducers integrated in the cell, typically vibrating wire, or pneumatic, or strain gauged if dynamic measurements are to be performed. A thermistor for temperature measurement is also incorporated.

Flat Jack

Flat jacks are designed to carry out in-situ testing of masonry structures and rock.

The flat jack is constructed from two stainless steel plates welded around their periphery, with the narrow gap between the plates filled with hydraulic fluid. It is inserted into a slot cut into the structure to be monitored and gradually brought up to pressure with a special hydraulic pump.

As stress increases within the structure or rock,the fluid pressure within the cell rises as the plates are squeezed together and it is possible to derive the stresses acting in the structure test area.

A length of stainless steel tube connects the plates to a pressure transducer (VWDT 5000 or SGT 3000) that converts the pressure to an electrical signal which can be read directly with a MP12 readout or data logged.

Embedment Strain Gauge

Geosense® VWS-2100 series vibrating wire embedment strain gauges are designed for direct embedment in concrete.

The strain gauge operates on the principle that a tensioned wire, when plucked, vibrates at its resonant frequency. The square of this frequency is proportional to the strain in the wire.

The gauge consists of two end blocks with a tensioned steel wire between them.

Around the wire is a magnetic coil which when pulsed by a vibrating readout or data logger interface plucks the wire and measures the resultant resonant frequency of vibration

Surface Mount Strain Gauge

Geosense® VWS-2000 series vibrating wire surface strain mount gauges are designed for the long term monitoring of steel or concrete structures. Gauges may be attached to steel structures by arc welding or, using alternative end blocks, bonded or grouted into concrete.

The strain gauge operates on the principle that a tensioned wire, when plucked, vibrates at its resonant frequency. The square of this frequency is proportional to the strain in the wire

The gauge consists of two end blocks with a tensioned steel wire between them. The end blocks can be attached by either arc welding, bonding or groutable anchors to steel or concrete.

Around the wire is a magnetic coil which when pulsed by a vibrating readout or data logger interface plucks the wire and measures the resultant resonant frequency of vibration.

Sister Bar/Rebar

Geosense® VWS-4000 series vibrating wire Sister Bars and Rebar Strain Meters are designed to be embedded in concrete to measure strains due to imposed loads.

The VWS-4000 Sister Bar is installed by tying it alongside an existing length of rebar within the cage. Available in two diameters: 12 and 16mm.

The VWS-4001 Rebar Strain Meter is installed by welding it into the existing rebar cage at a location within the structure where loads can be accurately passed from the concrete into the gauge. Available in various sizes to match the size of the rebar cage into which it is to be welded

Spot Weld Strain Gauge

Geosense® VWS-2020 series vibrating wire strain gauges are designed primarily to measure strains on the surface of steel structures but may also be used on other types of material.

The gauge consists of two end blocks with a tensioned steel wire between them. The end blocks are attached to stainless steel tabs which may be attached to steel structures by spot welding or, using alternative end blocks, bonded or grouted.

The strain gauge operates on the principle that a tensioned wire, when plucked, vibrates at its resonant frequency. The square of this frequency is proportional to the strain in the wire

Around the wire is a magnetic coil which when pulsed by a vibrating wire readout or data logger interface plucks the wire and measures the resultant resonant frequency of vibration.

Strand Anchor Strain Gauge

Geosense® VWS-2800 vibrating wire strain gauge is designed for the monitoring of strain along stranded anchors.

The gauge is housed within a robust cover to de-bond it from the surrounding grout and the specially-designed mounting blocks ensure the strain is transferred from the strand to the gauge. The low profile design means that multiple sensors can be installed along the bonded length of strand anchors.

The strain gauge operates on the principle that a tensioned wire, when plucked, vibrates at its resonant frequency. The square of this frequency is proportional to the strain in the wire.

The gauge consists of two end blocks with a tensioned steel wire between them. The end blocks can be attached by either arc welding, bonding or groutable anchors to steel or concrete.

VW Weir Monitor

The Geosense® VWM-2000 vibrating wire precision water level monitor utilises a vented vibrating wire force transducer in combination with a cylindrical weight suspended from it to monitor water levels.

The vibrating wire transducer is vented to atmosphere so that any atmospheric changes are automatically compensated.

The transducer and weight are contained within a PVC slotted pipe which can be located within the weir or tank as necessary and the vent tube is terminated within a moisture trap. Periodic change of the desiccant is required

The cylindrical weight is partially suspended in the water level being monitored and as the water level changes the force on the transducer by the cylinder alters which in turn alters the tension of the vibrating wire.

As with all vibrating wire sensors, the output is frequency and therefore not affected by changes of cable resistance and therefore extremely long cable lengths are possible.

V-Notch Weirs & Tanks

Geosense® V-Notch Weirs and Tanks are used to measure seepage water flows in open streams, channels or tanks and are used mainly as part of Dam Safety Monitoring programs.

Made from high quality stainless steel or other corrosion & abrasion resistant materials they are available in a wide range of sizes and angles to suit project requirements.

The V-notch weir uses the principle of flow of water over a triangular or rectangular notched weir plate. For a given profile size and shape, discharge is a function of the head of water at the weir.

EchoSounder

The Geosense® EchoSounder sets new standards in ultra compact sonar technology and acts as a stand-alone altimeter, providing accurate height off the seabed and other subsea distance measurements.

The EchoSounder is a robust professional offshore or freshwater altimeter, built to the highest quality standards. It is optimised for operation on small vehicles, as it is both compact and very lightweight in water.

A wide range of voltage inputs is available to suit individual projects.

Ultrasonic Flow Monitor

The Geosense® Ultrasonic Flow Monitor is a compact, easy to use system for measuring the velocity and depth of water in rivers and streams, open drainage channels and large pipes. It is suitable for use in a wide range of water qualities ranging from sewerage and waste water to clean streams, potable water, and even sea water. The instrument measures forward and reverse flow conditions and may be programmed to compute flow rate and total flow in pipes and open channels.

The newest model, consists of a new depth sensor and a new velocity algorithm in addition to all the previous features. The ultrasonic transducer assembly is profiled to reduce flow disturbance and signal electronics. It is designed to be placed at (or near) the bottom of the water channel for upstream measurement. A single cable connects the instrument to a 12V DC power source.

Staff Gauges

Geosense® Staff Gauges are used mainly to measure the water levels in dam reservoirs or in combination with V-notch weirs to monitor seepage or entry flows as part of Dam Safety Monitoring programs

Made from 150mm wide x 4mm thick lightweight glass reinforced plastic (GRP) they offer higher durability and longer life than products made from cast iron or other metals.

They are provided with red datum numerals for easy surveying and the numerals can either be on separate boards or printed directly onto the board itself.

Evaporation Pan

Evaporation Pans are used for applications where evaporation of open water areas must be monitored and measured, such as reservoirs.

It is simple to install and easy to use. Accurate evaporation readings are obtained from the contained area of the pan which are later correlated against the larger body of water through specific calculations.

The 4-20 mA transducer is securely enclosed and connects to a data logger or readout. The pan is constructed of stainless steel and is transported on its own wooden pallet for placement in the field. It can be easily disassembled for storage or transport to other job sites.

Telog Ru-32mA

The Ru-32mA is a versatile eight channel RTU that can be supplied with one or two pressure sensors and can interface up to two digital inputs (pulse and/or event), one 4-20mA current loop from a process instrument, one analog voltage or potentiometer input, and two additional inputs to capture the encoded register reading of single or dual water meters such as master meters and compound meters.

Using cellular technology enables unmanned monitoring of remote sites as well as instant updates and alarm notifications. The Ru-32mA uses a low power, LTE/Cat 1 cellular communication modem certified on multiple cellular systems. This ensures maximum coverage, reliability of service and alignment with cellular carriers technology roadmaps.

Telog Ru-32imA

The Telog Ru-32imA provides real-time monitoring and alarming of pressure, flow sensors, valves, and meters found in harsh environments typical of water distribution and wastewater collection systems such as underground water vaults. When you combine the Telog Ru-32imA RTU with a Trimble Telog software option, you have a powerful system of wireless water infrastructure monitoring that is consistently delivering real-time data from the field straight to your desktop. Imagine…all your data on one platform straight to your computer screen.

In addition to monitoring the pressure on the two pressure channels, the impulse recording option feature of the Trimble Telog Ru-32imA unit stores the waveform of captured pressure transient (impulse) waves detected on the monitored network. The Trimble Telog Ru-32imA can store up to 125 events of variable duration that may occur over many months of on-site monitoring, recording up to a maximum of 20 minutes of pressure transient data at 30 samples/second. Impulse monitoring can be enabled on both pressure channels simultaneously, providing insight into impact and origins of such transient events.

Telog Ru-35

The Telog Ru-35 provides real-time monitoring and alarming of flow, pressure and water quality instruments and sensors found in the harsh environments of sewers and underground water vaults. When you combine the Telog Ru-35 RTU with a Trimble Telog software option, you have a powerful system of wireless wastewater infrastructure monitoring that is consistently delivering real-time data and alarms from the field, straight to your desktop or browser. This provides situational awareness of the performance of the collection system, improves regulatory compliance and enables network modeling calibration.

The Telog Ru-35 supports multiple sensor interface options including RS-232, RS-485, analog and digital inputs with MODBUS, SDI-12 and I2C protocol support. For example, when connected to an open-channel flowmeter via RS-232, the RTU can interrogate the meter for its most recent level, flow velocity and battery voltage measurements. Trimble Telog also provides optional sensors that may be directly attached to the Telog Ru-35 including ultrasonic and pressure level, water quality sondes, temperature, level switches and rain gauges.

Telog Ru-33

Telog’s Ru-33 Recording Telemetry Unit, (RTU), provides real-time monitoring and alarming of instruments and sensors found in the harsh environment of sewers and underground water vaults.

The Telog Ru-33 has low power requirements and automatically monitors level, flow, pressure and water quality sensors. Data is forwarded wirelessly to a host computer operating Telog Online, Telogers for Windows or Telog Enterprise. Data communication may be scheduled frequently (e.g. daily, hourly, every five minutes, etc.) and/or immediately in response to site alarm conditions.

Telog RS-33

Collecting, analyzing and understanding data from networks of recording sites is a challenging task. The Telog RS-33 recording system offers you a versatile, economical and comprehensive solution to keep up with the data acquisition demands of today. The Telog RS-33 is a system package so flexible it can be customized for each application to provide you with the information you need in a concise, presentable format.

The power of every 33 series recorder from Trimble Telog is wireless data transfer capability. Using cellular technology enables unmanned monitoring of remote sites as well as instant updates and alarm notifications. The Telog RS-33 systems employ a Telog proprietary, low power m2m cellular modem certified for operation on the Verizon Wireless and Sprint cellular networks in addition to an Ethernet option.

Telog RS-33u

Collecting, analyzing and understanding data from networks of recording sites is a challenging task. The Telog’s RS-33u recording system offers you a versatile, economical and comprehensive solution to keep up with the data acquisition demands of today.

The Telog RS-33u provides real-time monitoring and alarming of instruments and sensors in a system package so flexible it can be customized for each application to provide you with the information you need in a concise, presentable format.

Telog HPR-32A

The Telog HPR-32A is an ideal pressure monitoring solution for pressure concerns, fire flow testing and hydraulic model calibration.

Trimble Unity software combined with Telog wireless hydrant pressure recorders provide a GIS-centric cloud and mobile platform for monitoring system pressures, and trends, min, max and average pressure history at any user defined interval. Telog hydrant pressure recorders can store data internally for many months and wirelessly transmit on a defined schedule to provide alerts and alarms in response to pressure faults, delivering a complete solution for proactive pressure and leakage monitoring and management.

Telog HPR-32iA

The Telog HPR-32iA is an ideal pressure monitoring solution for pressure monitoring, transient analysis, fire flow testing, customer pressure concerns, and hydraulic model calibration. The Telog HPR-32iA recorder measures water pressure at user programmable rates up to 256 samples per second with an internal pressure transducer. The recorder then computes any combination of the minimum, average and maximum values according to your selection of statistics and recording intervals. For example you can measure and store the maximum, minimum and average pressure at 5 minute intervals for more than 90 days (when impulse monitoring is disabled).

The impulse recording option feature of the Telog HPR-32iA units stores the waveform of captured transients. The HPR-32iA can store up to 125 events of variable duration that may occur over many months of on-site monitoring, up to a maximum rate of 256 samples per second and a total of 42,000 data values.

Telog HPR-32iA

The Telog R-33xx recorders become your eyes and ears in the field. The recorders accept analog and/or event inputs with a sample rate of 1 per sec up to 1 per 8 hours, storing up to 300,000 interval computations in memory. Telog R-33xx units record output from a variety of sensors such as pressure, level, flow, pH, temperature and humidity. Combine the Telog R-33xx recorders with a power source and communication option to easily administer a network of hundreds of remote recorders.

Alarm notification for critical point monitoring is available. Each alarm event is time-stamped and stored in the recorder's wrap around memory. Backup battery packs ensure data integrity in the event of a power source failure.

Telog RG-32A

When you combine the Trimble Telog RG-32A rain gauge recorder and Telog Online, or Trimble Water Unity cloud solutions, you have a powerful system of wireless water infrastructure monitoring that is consistently delivering real-time data from the field straight to your desktop. Imagine.....all your data on one platform straight to your computer screen.

The power of every 32 series recorder from Trimble Telog is wireless data transfer capability. Using cellular technology enables unmanned monitoring of remote sites as well as instant updates and alarm notifications. The RG-32A uses a low power, LTE/Cat 1 cellular communication modem certified on multiple cellular systems. This ensures maximum coverage, reliability of service and alignment with cellular carriers technology roadmaps.

Telog PR-32A/32iA

The Telog PR-32A and Telog PR-32iA are versatile instruments intended to monitor water system pressures or water levels (e.g. underground aquifers, surface reservoirs or water tower levels). When you combine the Telog PR-32A series with a Trimble software option, you have a powerful system of wireless water infrastructure monitoring that is consistently delivering real-time data from the field straight to your desktop. Imagine.....all your data on one platform straight to your computer screen.

In addition to performing the measurement and recording functions of the Telog PR-32A, the impulse recording option feature of the Telog PR-32iA units stores the waveform of captured pressure transient waves detected on the monitored network. The Telog PR-32iA can store up to 125 events of variable duration that may occur over many months of on-site monitoring, recording up to a maximum of 2.5 minutes of transient data at 256 samples/second.

Telog iLR-32A

When you combine the Telog iLR-32A current loop recorder and Telog Online, or Trimble Water Unity cloud solution, you have a powerful system of wireless water infrastructure monitoring that is consistently delivering real-time data from the field straight to your desktop. Imagine.....all your data on one platform straight to your computer screen.

The power of every 32 series recorder from Trimble Telog is wireless data transfer capability. Using cellular technology enables unmanned monitoring of remote sites as well as instant updates and alarm notifications. The iLR-32A uses a low power, LTE/Cat 1 cellular communication modem certified on Verizon Wireless.

Telog PFE-32A

When you combine the Telog PFE-32A pulse frequency/event recorder and Trimble’s range of cloud or on premise software solutions, you have a powerful system of wireless water infrastructure monitoring that is consistently delivering real-time data from the field straight to your desktop. Imagine.....all your data on one platform straight to your computer screen.

The power of every 32 series recorder from Trimble Telog is wireless data transfer capability. Using cellular technology enables unmanned monitoring of remote sites as well as instant updates and alarm notifications. The iLR-32A uses a low power, LTE/Cat 1 cellular communication modem certified on Verizon Wireless.

Telog PR-41

The Telog PR-41 Pressure Recorder establishes a new standard in low power, IoT communication sensors for monitoring and alarming remote water system pressures. It is available with a choice of pressure sensor ranges, from 1 to 500 PSI. The Telog PR-41 enables water utilities to cost effectively monitor their network, identify potential pressure and leakage issues and respond to them in a timely manner. In doing so, it aids them to comply with NRW, Customer Service and other regulatory targets.

Connected to Telog Cloud or on premise software applications, the Telog PR-41 may be configured to report its data on a schedule (5 or 15 minutes, hourly, etc. ) and/or on alarm (e.g. in response to a high or low pressure or level exceedance condition). The recorder can be programmed to sample the pressure sensor up to once per second and transmit the data statistics as per the schedule.

Telog WL-41

The Telog WL-41 Water Level Recorder establishes a new standard in low power, low cost IoT communication sensors for monitoring and alarming remote water system levels. The Telog WL-41 is a versatile instrument intended to monitor water levels (e.g. underground aquifers, reservoir or water tower levels). It is available with a choice of water level ranges, from 1 foot to 500 feet. .

Connected to Telog Cloud or on premise software applications, the Telog WL-41 may be configured to report its data on a schedule (5 or 15 minutes, hourly, etc. ) and/or on alarm (e.g. in response to a high or low or level threshold exceedance condition). The recorder can be programmed to sample the water level sensor up to once per second and transmit the data statistics as per the schedule.

Telog RG-41

The Telog RG-41 Rain Gauge Recorder establishes a new standard in low power, IoT communication sensors for monitoring and alarming remote rainfall volumes. It allows utilities and municipalities to monitor rainfall in their service areas and correlate it’s impact on their networks and/or watersheds and catchments.

Powered by a single user replaceable ‘C’ cell lithium battery, the Telog RG-41 continuously monitors the output of a tipping bucket rain gauge collecting rainfall data in user defined time increments then transfers the data automatically over a LoRaWAN™ wireless network to a central host computer in the cloud or on the utility enterprise network.

Telog MTU-41

Telog MTU-41 establishes a new standard in low power, wireless sensors for monitoring water meter totalizer registers and interval flow history. It allows utilities to deploy on new flow meters or retrofit existing flow meters with a cost effective sensor to monitor flow rates in the field, providing an up to date view of flow and driving efficiencies in operations by removing the need for manual meter reads.

By deploying Telog MTU-41s for bulk flow meters and custody transfer meters in their network, utilities can dramatically improve their insight into network behavior while achieving significant savings in operational costs.

Telog PE-41

The Telog PE-41 establishes a new standard in low power, wireless recorders for pulse and event recording. It allows utilities to retrofit a cost effective sensor to monitor existing mechanical flow meters and pumps in the field, providing an up to date view of flow and pump run times/duty cycles.

By deploying Telog PE-41s for bulk flow meters and pumps in their network, utilities can dramatically improve their insight into network behavior while achieving significant savings in operational costs.

Telog HPR-31

The simplicity of the compact, battery-powered Telog HPR-31 enables you to put it to work within minutes of unpacking. Once installed, the Telog HPR-31 measures water pressure at user programmable rates up to four samples per second with its internal pressure transducer. You can determine how often such data is summarized for reporting. The recorder computes any combination of minimum, average and maximum pressure measurement at each interval according to your selection of statistics and recording intervals. Recorded data may be gathered via an RS-232 connector using a handheld device or a laptop.

All Telog hydrant pressure recorders have low power requirements so they can be battery operated. The Telog HPR-31 series uses an AA 3.6v Lithium battery that can last up to five years.

Telog HPR-31

The simplicity of the compact, battery-powered Telog HPR-31 enables you to put it to work within minutes of unpacking. Once installed, the Telog HPR-31 measures water pressure at user programmable rates up to four samples per second with its internal pressure transducer. You can determine how often such data is summarized for reporting. The recorder computes any combination of minimum, average and maximum pressure measurement at each interval according to your selection of statistics and recording intervals. Recorded data may be gathered via an RS-232 connector using a laptop.

All Telog hydrant pressure recorders have low power requirements so they can be battery operated. The Telog HPR-31 series uses an AA 3.6v Lithium battery that can last up to five years..

Telog LPR-31

The Telog LPR-31 line pressure recorder is intended for temporary or permanent installation on water or gas distribution system lines. The Teog LPR-31 continuously monitors and records line pressure using an internal strain gauge pressure sensor. Sample rates are user programmable up to 4 samples per second and data may be saved as the computed statistics at user programmable intervals from once per second to every 8 hours.

The LPR-31 can store 5 minute minimum, maximum and average values for over 90 days. Recorded data may be gathered via an RS-232 connector using a laptop with Telogs for Windows software.

Telog LPR-31i

Telog’s LPR-31i line pressure impulse recorder monitors water pressure throughout a water distribution system and captures the waveform of water hammer and negative pressure transient events. In addition to performing the measurement and recording functions of the standard Telog LPR-31, the Telog LPR-31i stores the waveform of captured transients. The Telog LPR-31i can store up to 450 events of variable duration that may occur over many months of on-site monitoring.

The LPR-31i measures water pressure at user programmable rates up to 20 samples per second with internal pressure transducers. The recorder then computes any combination of the minimum, average and maximum values according to your selection of statistics and recording intervals. For example you can measure and store the maximum, minimum and average pressure at 5 minute intervals for more than 90 days.

Telog WLS-31

The Telog WLS-31 level tracker is a simple, effective and economical system designed to measure water level using a data logger and pressure sensor. The Telog WLS-31 is valuable in level monitoring applications such as aquifer characterization, environmental remediation, well or tank level recording, combined sewer overflow and sanitary sewer overflow.

With a Telog WLS-31, everything you need for level monitoring -- recorder, sensor and cable comes in one simple and rugged package, pre-assembled and calibrated. The simplicity of the compact battery-powered recorder enables you to put it to work, unattended, inside a 2" well within minutes of unpacking.

Telog ILR-31

The Telog ILR-31 converts current loop inputs into a series of amplitude values and stores them in its wraparound memory. When data averages are selected as part of the statistical analysis program, two types of data totals can be computed: Period and cumulative totals.

Telog IFM-32

The Telog IFM-32 flowmeter is an easily deployed and cost effective flowmeter providing highly accurate, bi-directional flow measurement for water distribution and raw water pipelines.

The IFM-32 is an insertion flowmeter, enabling retrofit in existing networks without service interruption and available in various lengths for permanent or portable applications. As it is battery operated, the Telog IFM-32 can be quickly and cost effectively installed at a variety of locations in the network, providing insight into flows that would not be otherwise cost effective. Combined with a Telog Ru-32A series RTU, the Telog IFM-32 enables monitoring of flows, pressures, pumps, valves and pressure transients in a single battery operated solution. All data captured is available for visualization, reporting and analysis in Trimble Unity Remote Monitoring, Telog Enterprise and Telogers for Windows application software for all water analysis applications.