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DONG-A GEOVAN CO., LTD. | www.geovan.com | ISO9001 Certified Company DONG-A GEOVAN Optimized Measurement, Proven Safety manufacturer providing solutions to measuring sensors for construction safety and unmanned automatic data collection, has accumulated know-how over the years and conducted technology research over and over again through process innovation, measurement, collection and the data analysis of stored information, and immensely contribute to prevent various negligent accidents CONTACT address tel fax email

DONG-A GEOVAN | Optimized Measurement, Proven Safety WWW.geovan.com GV-2410 VW Embedment Strain Gage pOII GV-2411 VW Spot Weldable Strain Gage p012 GV-2417 Water level indicator p016 GV-2419 Total Pressure Cell p018 GV-2424 Linear earth settlement cell p019

- Slope measurement - Monitoring tilt of retaining wall - Inclination of concrete dam monitoring - Land slide monitoring - Bridge monitoring - Leveling of industrial equipment - Position control -Adopted MEMS sensor - Biaxial sensor - Minimized drift signal - Good repeatability - Excellent Linear output -Waterproof coated aluminium case Sensor type MEMS (Micro-Electro-Mechanical Systems) MEMS (Micro-Electro-Mechanical Systems) Response time Operating Temperature * Specification and design can be changed without prior notice. DONG-A GEOVAN | A. 721-32 Hakjang-Dong, Sasang-Gu,Busan, Korea T....

DONG-A GEOVAN CO., LTD. ISO9001:14001 Certified Company IN-PLACE INCLINOMETER MODEL - GV-2402 APPLICATION In-Place inclinometer are used for continuous monitoring of horizontal and vertical deformations. Applications includes : - Monitoring of slope or embankment performance - Monitoring of deflection of piles, abutments or retaining walls - Monitoring of ground movements caused by tunneling - Monitoring of settlement below storage tanks and structures - Monitoring of land sliding area OPERATIONS - An In-Place inclinometer installation comprises a number of Uniaxial or Biaxial electrical...

DONG-A GEOVAN CO., LTD. ISO9001:14001 Certified Company IN-PLACE INCLINOMETER MODEL - GV-2402 FEATURES - Thermal Sensitivity - Low signal noise ratio - High sensitive - EMF immunity - The 4-20mA loop current transmission allows the use of long cables without the loss of signal quality. SPECIFICATION - Axis : Uniaxial or Biaxial - Range : +/-10Degrees - Accuracy : 0.004Degress. less than 0.002Degrees with filtering - Material : 304F Stainless Steel - Resolution : 1 x 10E-4 F.S. depend on data logger’s resolution - Output : 4-20mA loop current transmission - Wheel set : Heavy duty wheel...

DONG-A GEOVAN CO., LTD. ISO9001:14001 Certified Company VIBRATING WIRE CRACKMETER MODEL - GV-2403 FEATURES - Splashproof - Robust design - Stainless steel material used - High accuracy & resolution - Long term stability - Stable frequency signal OPERATION Vibrating wire crackmeter is designed to measure displacements across cracks in structures. The transducer employs a shaft coupled to a spring which, in turn is coupled to a vibrating wire element. Movement of the shaft changes the tension in the spring and in the wire causing a corresponding change in its frequency of vibration....

* Specification and design can be changed without prior notice. DONG-A GEOVAN | A. 721-32 Hakjang-Dong, Sasang-Gu,Busan, Korea T. 8251 3155067 F. 8251 3158854 E.info@geovan.com

- Steel strain monitoring - Concrete strain measurement - Driven and bored piles struts and support systems - Underground and deep excavations monitoring - Waterproof construction - Removable coil & magnet - Stable frequency signal output -Temperature reading together - Stainless steel construction - Suitable for long term monitoring project Type of Transducer Vibrating Wire Nonlinearity less than F.S. 0.5 % * Specification and design can be changed without prior notice. DONG-A GEOVAN | A. 721-32 Hakjang-Dong, Sasang-Gu,Busan, Korea T. 8251 3155067 F. 8251 3158854 E.info@geovan.com

DONG-A GEOVAN CO., LTD. ISO9001:14001 Certified Company VIBRATING WIRE PIEZOMETER MODEL - GV-2407 EXACT PORE PRESSURE MEASUREMENT Geovan model GV-2407 piezometers are widely used to Measure ground water elevations and pore water pressures in boreholes, embankments, pipe lines, wells, mines, tunnels, road construction and soft ground monitoring projects APPLICATION - Controlling water pressure during consolidation by continuous monitoring - Prediction of slope failure and remediation - Design for lateral earth pressures - Design for uplift pressures and buoyancy - Monitor seepage, determine...

-The Piezometers can be used in the same type of applications as the traditional pneumatic type, electrical resistance type and vibrating wire type piezometers - Suitable real time water level monitoring - Slim size design OD22mm,L=120mm - Stainless steel body material - Accurate measurement - Long term stability & low power consumption - Atmosphere compensation with vent tube cable - mV output (Red V+, Black GND,White S+) The pressure sensing element is a semi-conductor which is wired up to give a change in resistance when the pressure in the environment changes.The output can be read...

- Proven long term stability and accuracy. - Rugged Waterproof - Not affected by cable length and resistance - Compatible with data logger The model GV-2409 Vibrating Wire Load Cell consists of a cylinder of high-strength, heat treated steel with 3 or 4 VW strain gages located around the circumference of Geovan Load Cell is ideally designed to measure loads in tiebacks,anchors,struts, rock bolts and strands in structures. Sensor type Vibrating Wire Strain Gage (other ranges on request.) Over range 1.5 times full scale without damage Material of cell SCM Steel Thermistor resolution 0.1...

VIBRATING WIRE EMBEDMENT STRAIN GAUGE Strain and Stress Measurement - Driven and bored piles monitoring - Suspension bars strain measurement - Soil nailing strain monitoring - Strain of H-Beam steel monitoring - Monitoring of Rebar deformation - Spot weldable installation - Waterproof construction - Stable frequency signal output -Temperature reading together - Strain gage is surrounded by coil unit permanently - Insensitive to long cable lengths Type of Transducer Vibrating Wire Nonlinearity less than F.S. 0.5 % * Specification and design can be changed without prior notice DONG-A GEOVAN |...