水果無損硬度計(jì)檢測(cè)儀產(chǎn)品彩頁

DESCRIPTION SPECS FEATURES This tool is perfectly fit to detect proper picking maturity and control fruit softening during cold storage. It measures  the pressure necessary to force a plunger of specified size into the pulp of fruit. PREPARING SAMPLES About ten days before normal picking time, control pulp firmness, repeat control each 6-7 days for winter pome-fruits, each 2-3 days for  summer pome-fruits, and stone fruits. Take samples from several plants and several spots of each plant as a random sample will be more  representative of the lot. A suitable sample will be composed of 15-20 fruits; 2 measures have to be taken on each fruit at opposite sides, at the middle point of  each side, after removing 1/2"-3/4" diameter disc of peel. To avoid possible personal errors of measurement, you should place the left hand with the fruit to a wall or the ground, and while the right  arm remains rigid push the penetrometer. HAND HELD MEASUREMENT Hold the fruit firmly in the left hand, hold the fruit tester between thumb and  forefinger of the right hand, push button-commanded indicator hand, place the  plunger against the fruit and press with increasing strength until the plunger tip is  penetrated into the pulp up to the notch. Slow penetration of the plunger is essential. Sharp movements and sudden pressure  application may impair your measurements. In order to avoid mistakes and to assure  slow penetration of the plunger, make sure that the hand holding the fruit is firm,  leaning it on the table, and keep the arm rigid. TEST STAND MEASUREMENT When make the measurement, the SENSING HEAD along the adapter has to be on a  line with measuring fruit. • 20 kg, wide capacity, high resolution, high accuracy, high  repeatability • 3 kind display unit: kg, lb, Newton • full capacity zero (calibration) control capability • fast/slow response time push button • positive or reverse display direction select • accessories (plungers 8 and 11 mm) are included • table test stand is available (ref. 53205 SP) • low power consumption gives long