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MEASURE OF THE AXIAL FORCE APPLIED TO THE SPECIMEN

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Three different equipments are available to measure the axial
force applied to the specimen:
load proving rings (manual readings)
load cells (automatic readings)
submersible load cells (automatic readings and no friction
effects)
LOAD PROVING RINGS
Mechanical equipment for manual reading. In order to avoid any
overload damage, an electrical safety device is supplied to stop the
loading process when the maximum capacity of the ring is reached.
Technical details, other models and accessories see p. 573

SUBMERSIBLE LOAD CELLS
Submersible electrical equipment for automatic reading.
The submersible load cell must be placed inside the cell and connected
to the automatic data acquisition system mod. S334
(see p. 559).
It is made of high quality materials. It is a sealed waterproof device
with an excellent resistance to lateral forces.
It guarantees no friction effect of the ram. It is strongly recommended
when high accuracy in testing is required.
It must be equipped with the loading ram mod. S337-21.
Rated output: 2 mV/V nominal
Accuracy: 0.1%
Non-linearity: 0.05%

ACCESSORY
S374 STEM MECHANICAL BRAKE DEVICE
It keeps the max. reached value on the dial gauge and
allows the manual zero setting.
ELECTRIC STRAIN GAUGE LOAD CELLS
Electrical equipment for automatic reading. The load cell must be
connected to the automatic data acquisition system mod. S334
(see p. 559). Cable, connector and device to fix the load cell to the
triaxial frame are supplied.
Rated output: 2 mV/V nominal
Accuracy: 0.1%

ACCESSORIES
S337-21 LOADING RAM: Loading ram for submersible cells
S337-51 CALIBRATION PROCESS of one device that is combined
with the acquisition/processing system mod. S334.
To be chosen among:
– displacement transducer mod.S336-11 to S336-22,
– electric load cell mod. S337-02 to S337-34.
Calibration certificate is supplied.

MEASURE OF THE AXIAL STRAIN

Two different equipments are available to measure
the specimen axial displacement:
– Dial gauges (manual readings)
or:

– Displacement transducers
(automatic readings)

DIAL GAUGES (manual readings)
S377 Dial gauge, 25×0.01 mm suitable for specimens of max.
dimensions 50×100 mm
S379 Dial gauge, 50×0.01 mm suitable for specimens of max.
dimensions 70×140 mm
S383 Dial gauge, 25.4×0.001 mm with RS 232 port for PC
connection.
Note: For other requirements, dial and digital gauges with different
maximum travel and sensibility are also available:
see technical details at p. 574.

 

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