Matest catalogue 2018

SECTION S | SOIL
549
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)
S335-15
S336-11
S305-05
DIAL GAUGES (manual readings)
S336-15
S377 Dial gauge, 25x0.01 mm suitable for specimens of max.
dimensions 50x100 mm
S379 Dial gauge, 50x0.01 mm suitable for specimens of max.
dimensions 70x140 mm
S383 Dial gauge, 25.4x0.001 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.
S336-31
Note: The displacement transducers must be connected to the
automatic data acquisition system mod. S334
(see p. 559) or mod. S301-05 (see p. 544).
ACCESSORIES for DISPLACEMENT TRANSDUCERS
S377
S379
S383
S336-30 Extension cable 2 metres long
S336-31 Extension cable 5 metres long
S336-32 Extension cable 10 metres long
Note: It is recommended to use not more than 10 m of extension
cable to avoid noise problems that might occur.
DISPLACEMENT TRANSDUCERS (automatic readings)
Electrical devices for automatic readings. Calibration certificate is
supplied. Cable, connector and signal conditioner are provided.
TYPES OF AVAILABLE TRANSDUCERS:
TYPE “A”: Accurate and versatile linear potentiometric displacement
transducer,.
Indipendent linearity < 0.3% (0.3x10 mm)
Max. displacement speed: up to 10 m/s.
S335-15 Universal coupling pliers to hold the transducer/dial
gauge. It fits all Matest displacement transducers and
dial gauges (from Ø 8 mm to 20 mm).
S305-05 Mounting device of the universal coupling pliers mod.
S335-15 to fix the displacement transducer/dial gauge
to the Triaxial Cell mod. S305 or mod. S306
MODELS
S336-11 10 mm travel
S336-12 25 mm travel
S336-14 50 mm travel
S336-13 100 mm travel
TYPE “B”: Linear Strain Gauge Transducer. It guarantees good
repeatability and noise reduction.
Full bridge at 350 Ohm
Indipendent linearity < 0.1%
Standard sensitivity: 2 mV/V
MODELS
S336-18 5 mm travel
S336-15 10 mm travel
S336-16 25 mm travel
S336-17 50 mm travel
S336-41
GAUGE BLOCKS. Grade 1
Used to calibrate the linear displacement transducers.
MODELS
S336-43
S336-45
S336-41 Nominal length 5 mm
S336-43 Nominal length 10 mm
S336-45 Nominal length 25 mm
S336-47 Nominal length 50 mm
S336-47