In strength testing, the following materials are selectable: Mild Steel
、
High-Carbon Steel
、
Cr
Steel
、
Cr-V Steel
、
Cr-Ni Steel
、
Cr-Mo Steel
、
Cr-Ni-Mo Steel
、
Cr-Mn-Si Steel
、
Super Strength
Steel and Stainless Steel. The relationship between the material number displayed on the instrument
screen and the material is as follows:
Table 5-2
Material No
Material
Material No
Material
0 Mild
steel 5 Cr-Mo
steel
1
High carbon steel
6 Cr-Ni-Mo
steel
2 Cr
steel 7 Cr-Mn-Si
steel
3 Cr-V
steel
8
Super strength steel
4 Cr-Ni
steel
9 Stainless
steel
5.3 Hardness/Strength testing
Press key to switch between hardness testing and strength testing (
б
b) .
Note: Only D and DC type of impact device has the function of strength testing. So hardness testing
is the only selection if the impact device is not D or DC type.
In hardness testing, Press
SCALE
key to change the hardness scale. The supported hardness scale
includes: HL, HV, HB, HRC, HS, HRB and HRA.
Note
：
z
Here only displays the valid hardness scale for the present selected impact device and material.
It would not display the hardness scale which is not valid.
z
Please select material firstly, then select hardness scale.
z
Presetting hardness scale recovers to HL automatically after presetting material is changed.
5.4 Impact Direction Setting
Press the key to move to the impact direction that you will preset.
5.5 Average Times Setting
You could modify average times within the range of 1 to 32 as following:
1)
Press key in testing state. The impact times item will begin to flash.
2)
Press
or
key to set the average times to the number you want.
Press key finally to exit from the operation.
