All testing machines require sensors for measuring physical quantity during tests. This section includes all the analog measuring devices to be fitted on standard machines typically used in a soil mechanics laboratory such as load rings, dial gauges, volume change burettes and pore pressure manometers.
Analog Measurements Components
Load Rings
Used for measuring applied force on a soil sample
Load ring fit with 28-WF1049 connector for triaxial cells
Description
Load rings are used for load measurement in soil mechanics test such as, shear, triaxial, uncondiend, CBR ….
All model are made from special alloy steel and they are supplied analogue dial gauge 0.001 mm and calibration chart.
All models can be fitted with T1000/F (see accessories), a special stem brake unit which maintains the maximum reading after the failure of the specimen
Load ring can be directly connected to the adapter fit on the crosshead of triaxial frames. Using the 28-WF1049 connector (see accessories) they can be adapted to our complete range of triaxial cells.
Products
82-T1000/1M
Load measuring ring 1 kN capacity with analogue dial gauge 0,001 mm
82-T1000/10M
Load measuring ring 10 kN capacity with analogue dial gauge 0,001 mm
82-T1000/2M
Load measuring ring 2 kN capacity with analogue dial gauge 0,001 mm
82-T1000/5M
Load measuring ring 5 kN capacity with analogue dial gauge 0,001 mm
27-WF1002/ST
2000N load ring complete with adapters for shear machine
27-WF1003/ST
5000N load ring complete with adapters for shear machine
Technical Specifications
- High resolution dial gauge. 0.001 mm (analogue and digital)
- Accuracy: ±1%
- Dimensions: 182 mm dia, 214 mm high
- Weight approx.: 1.2 to 2.2 kg
Accessories and Spare Parts
28-WF1049
Connector with conical seat for load rings
82-T1000/F
Stem brake for load rings
Axial Dial Indicators
Used for measuring axial deformation on soil sample.
30-WF6402
Description
Dial gauge are used for measuring vertical and/or horizontal deformation on soil machanics test
Supplied complete with rear mounts for connection to load rings
Products
30-WF6401
Dial gauge 12 mm x 0.002 mm
30-WF6402
Dial gauge 30 mm x 0.01 mm
30-WF6403
Dial gauge 50 x 0,01 mm
Technical Specifications
- 50 mm dial diameter
- Clockwise rotation.
- Weight approx.: 200 g
Double Burette Volume Change Apparatus
Used for measuring variation of volume on soil sample in traxial tests - Analog version
Standards ASTM D8079
28-WF4400
Description
The apparatus comprises two measurement tubes, which have a 25 ml burette mounted internally and an acrylic tube externally. The burette tubes are connected directly to a reversing valve system, which is used to reverse the direction of travel of the interface in the measurement tubes without affecting the direction of flow of water to or from the triaxial cell.
the unit also includes a by-pass valve system when volume change measurement is not required. Burettes are calibrated to Class A.
Products
28-WF4400
Double burette volume change apparatus
Technical Specifications
- Dimensions: 130x682x87 mm
- Weight approx.: 3 kg
Accessories and Spare Parts
28-WF4400/1
Red dye hydrocarbon soluble pack for 500ml
Pore Water Pressure
Used for measuring pore water pressure on a soil sample in triaxial tests
Standards ASTM D8079
28-WF4451 complete with anti-twist device
Description
Pore water pressure can be measured using pore pressure manometer with anti-twist device that can be fitted directly to triaxial cell.
Products
28-WF4451
Digital Manometer 1700 kPa cap. for pore water pressure. Suplied with anti-twist device and de-aring block
Technical Specifications
- Max working pressure: 2000 kPa
Resolution: 1 kPa
Protection: IP 65
Pressure unit: bar – mbar – psi – Mpa – kPa
Operation temperature: from 0 to 60°C
Accuracy: less than 0,20 % F.S.