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B041-28 GAM - Gyratory internal Angle Measurer
B041-28 GAM - Gyratory internal Angle Measurer
B041-28 GAM - Gyratory internal Angle Measurer
- Description：
B041-28 GAM - Gyratory internal Angle Measurer
- Model：
B041-28
- Manufacturer：
Italy Matest
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Product Information
  • Description
  • Standard
  • Feature
  • Specification
  • Configuration
  • Accessories
Description

This Gyratory Angle Measurer has been designed by MATEST to provide an angle validating device. In less than 30 minutes the operator mayperform the calibration of the Gyratory Compactor.

The device  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 thenconsidered 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 value of theinternal 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.


Data are read by GAM and then downloaded (via RS232 cable)all together at the end of the measurements, with no need toconnect the device to the PC after each measurement Possibility to repeat even just one of the measurement, and latelyinclude it in the calculation spreadsheet.

Standard

• EN 12697-31

• ASTM D7115

• AASHTO T344

Feature

• High accuracy of the measured data

• Connection to PC through RS232 cable

• Three modes of data acquisition: Single, Partial orComplete

• Accuracy: more than 0.01°, as requested by theStandards

• Data processing is carried out by a specificspreadsheet, which also allows to create the finalcalibration certificate

• No need for power supply since the device is batteryoperated. Also it has an energy saving feature whichautomatically switch off the device if it is not beingused for a while

• Final calibration certificate

• Stand-alone device (battery operated)

• Energy sawing with integrated automatic switch offfunction

Specification
DescriptionTechnical Specification
Power supplyn°2 batteries 1.5V type AA
DimensionsDiameter 150 mm, Height 115 mm
Weight5.6 kg


Configuration

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

Accessories/Spare Parts

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)

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