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B041-28 GAM GYRATORY INTERNAL ANGLE MEASURER

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STANDARDS: EN 12697-31 | ASTM D7115 | AASHTO T344
This Gyratory Angle Measurer has been designed by MATEST to provide an angle validating device. In less than 30 minutes the operator may
perform the calibration of the Gyratory Compactor.
The device perfectly simulates a HMA specimen as it generates an equivalent tilting moment and shear forces.
GAM can cover a wide range of angles, including the ones specified by EN and ASTM Standards.
The device allows to perform TOP and BOTTOM angle measurements as specified by the Standards; the average of the obtained values is then
considered as the internal angle of the machine.
An excel spreadsheet, which is supplied along with the device, is used for data acquisition and processing, and provides the precise value of the
internal angle according to the calculation procedure specified by EN 12697-31 (Annex-C) and AASHTO T344.
The spreadsheet allows to plot several graphs showing the measured data and it also provides some important indexes about the quality of the data.

MAIN FEATURES
High accuracy of the measured data.
Connection to PC through RS232 cable.
Three modes of data acquisition: Single, Partial or
Complete.
Accuracy: more than 0.01°, as requested by the
Standards.
Data processing is carried out by a specific
spreadsheet, which also allows to create the final
calibration certificate.
No need for power supply since the device is battery
operated. Also it has an energy saving feature which
automatically switch off the device if it is not being
used for a while.
Final calibration certificate.
Stand-alone device (battery operated).
Energy sawing with integrated automatic switch off
function.

ACCESSORIES
B041-50 GAM CALIBRATION-CHECKING set to ASTM
(1.16° angle). The set is composed by two square rules.
Supplied complete with factory certificate.
B041-51 GAM CALIBRATION-CHECKING set to EN
(0.82° angle). The set is composed by two square rules.
Supplied complete with factory certificate.
B041-55 ACCREDIA Official Calibration Certificate of the angle,
for the square rules (ASTM and EN).

TECHNICAL SPECIFICATIONS
The device is supplied complete with:
– Two different rings to perform tests either with M=240Nm
or M=425Nm
– Upper and lower base plate
– RS232 cable
– Strong practical suitcase
– Calibration certificate
Data are read by GAM and then downloaded (via RS232 cable)
all together at the end of the measurements, with no need to
connect the device to the PC after each measurement
Possibility to repeat even just one of the measurement, and lately
include it in the calculation spreadsheet
Power supply: n°2 batteries 1.5V type AA
Dimensions: Diameter 150 mm, Height 115 mm
Weight: 5.6 kg

 

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