Remove the outer box,take out Hardness tester mainframe and accessories box;
Take out the level adjustment screw from the accessory box,spin at the bottom of the main body；
Remove the cover,rotate the shockproof fastening screws(As shown in Figure 4)；
Turn the test force change handwheel to 0.098N；
Rotate the screws on the cover of the weight housing,remove the end cap,take out the weight shaft and weight from the accessory box,set the six weights on the weight axis from small to large.Wipe clean weight shaft and weight before install;
Grab the top of the weight shaft,place it in the weight housing,and turn the weight axis,so that the cross pin is placed in the lever V groove(As shown in Figure 5)；
Align the hole on the end cap with the weight axis,so that its shoulder and weight box hole match,tighten two M3 screws;
Turn test force change handwheel,so that the weight of the shell in the positioning slot up and down flexible,cover the instrument cover after all the above steps are completed；

Figure 5 internal structure diagram Figure 6 weight shaft installation diagram

Remove the dome cover,take out the micrometer from the accessory box,inserted into the hole；
Remove the cross case from the accessory box,use the gasoline to clean the rust,lubricate with thin oil after being dried;
Insert the cross test shaft into the hole of the lifting screw rod,fasten with screws;
Place the level gauge on the cross test stand,adjust the front and rear horizontal screws,so that the bubble center.

Main interface display

HV 1.0: Vickers hardness	HRC: converts the ruler to show other scale hardness values
D1 (D2): indentation diagonal length	Dwell: charge time selection, boot default setting 10 seconds
Setup: settings	No.0: Hardness test count (not included for the first time)
Print: Print

Key definition

OK	Enter	↑	Direction key
←	Direction key, objective switch key	↓	Direction key
→	Direction key, objective switch key	L+	Light source adjustment key
CLR	Set the zero key	L-	Light source adjustment key
0~9,“·”	Number key	↓	Start key