เครื่องวัดจุดรวมของยางมะตอย (AP ซีรี่ส์ )

Ap series digital asphalt penetrometer
Ap-1
1). It has digital tube display and it's semi-automatic.
2). Manually adjust the adjusting screw below the glass tank to let the asphalt surface connect with the needle tip fine.
3). Press the test button to make automatic timing. When time's up, lock the needle bar automatically. Measure the penetration value manually with digital percentage dial then read the value on dial.
Ap-2
1). It is controlled by computer. Adjust the contact between asphalt surface and needle tip by microscope measurement method.
2). Press the test button to make automatic timing. When time's up, the LCD display the penetration value, store, calculate the average automatically. It can store 10 groups of testing data.

Ap-3
1). It has one more heating device than ap-2 type.
2). It can maintain 25 degree, when the temperature is below 25 degree.
Ap-4
1). It has one more printer than ap-3.

Ap-5
1). It has large screen which can display the real time, and it can do three times test continuously and display the average value of penetration automatically.
2). It can connect the computer, adjust up and down through by microscope measurement method.
3). Automatically calibration, sensor alarms for over range.
Ap-6
1). It has one more infrared printer than ap-5.