Easy to Use: Simple operation, Insert to test
High Precision: Suitable for professional testing
Easy to Carry: Small and simple package for easy carrying
Applicability: Suitable for hardness testing of various fruits
High Quality: Rugged metal material, trustworthy
Principle:
The hardness of fruit can express by the unit area(s) could undertake the pressure of dynamometer(N), their specific value is just as the hardness(P).
P=N/S
P - the hardness value of fruit 10^5 Pa or (kg/cm^2)
N - pressure of dynamometer (N) N or (kg)
S - the area of pressure m^2 or (cm^2)
Pay Attentions
1.Retention knob should be loosened before measuring, rotate dial will justify the driven guidelines and the initial alignment of the same scale (straight head), and then rotate retention knob. Check whether the driver instructions pointer is on the right driver guidelines, if not, should rotate back to zero knob, so that instruction pointer is on the right of driver guidelines,
2. In order to achieve better accuracy, before measuring pressure the pressure head with their hands with full range press 2 to 3 times, so that lubrication.
3.When measuring hardness, should be uniformly slow insertion, can not turn pressure, should not impact measurement.
4.Pressure head fruits should be vertical surface.
5.GY-1 and GY-2 type fruit sclerometer scale units for the outer ring is * 10^5 Pa, the inner ring scale is kg/cm^2, GY-3 type, connecting the small pressure head, with inner ting scale readings, connecting big pressure head, with the outer ting scale readings.
6.The instruments and pressure head should be kept clean and after finishing measurement it should be cleaned be cleaned up the juice.
7.Joint top rack is provided for professional inspection sector, with the rack used to components, when connecting, rotate the knob, just revolve the screw and the sleeve is OK.
8.Using more than a year, should open the back cover, pour in some lubricating oil in the main shaft, gear, precious stones eyes, groove-oriented, to improve accuracy and extent the useful life of equipment.
9.The factory has been standardized the calibration, no unauthorized rotating screw nut.