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PDF MH180 Data sheet ( Hoja de datos )
| Número de pieza | MH180 | |
| Descripción | Leeb Hardness Tester User Manual | |
| Fabricantes | Mitech | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MH180 (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
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www.DataSheet4U.com
MH180 Leeb Hardness Tester
User’s Manual
Mitech Inc. Ltd.
1 page  
www.DataSheet4U.com
MITECH
www.mitech-ndt.com
1.3 Technical Specifications
z Error and repeatability of displayed value see Table1-1 below.
Table 1-1
No.
Type of
impact device
Hardness value of Leeb
standard hardness block
Error of displayed
value
Repeatability
1D
760±30HLD
530±40HLD
±6 HLD
±10 HLD
6 HLD
10 HLD
2 DC
760±30HLDC
530±40HLDC
±6 HLDC
±10 HLDC
6 HLD
10 HLD
3 DL
878±30HLDL
736±40HLDL
±12 HLDL
12 HLDL
4 D+15
766±30HLD+15
544±40HLD+15
±12 HLD+15 12 HLD+15
5G
590±40HLG
500±40HLG
±12 HLG
12 HLG
6E
725±30HLE
508±40HLE
±12 HLE
12 HLE
7C
822±30HLC
590±40HLC
±12 HLC
12 HLC
z Measuring range：HLD（170～960）HLD
z Measuring direction：0~360°
z Hardness Scale：HL、HB、HRB、HRC、HRA、HV、HS
z Display：segment LCD
z Data memory：max. 100 groups（relative to impact times 32～1）
z Working power：3V（2 AA size alkaline batteries）
z Continuous working period：about 100 hours（With backlight off）
z Communication interface：RS232
1.4 Configuration
Table 1-2
Standard
Configuration
No.
1
2
3
4
5
6
7
8
TEL: 86-10-51284068
FAX: 86-10- 51733675
Item
Main unit
D type impact device
Standard test block
Cleaning brush (I)
Small support ring
Alkaline battery
Manual
Instrument package
case
Quantity
1
1
1
1
1
2
1
1
Remarks
With cable
AA size
4
5 Page 
www.DataSheet4U.com
MITECH
www.mitech-ndt.com
4 Testing Program
4.1 Start-Up
z Insert the plug of the impact device into the socket of impact device on the instrument.
z Press the key，now power is on. The instrument is in working mode.
4.2 Loading
Pushing the loading-tube downwards until contact is felt. Then allow it to slowly return to
the starting position or using other method locking the impact body.
4.3 Localization
Press the impact device supporting ring firmly on the surface of the sample, the impact
direction should be vertical to the testing surface.
4.4 Testing
z Press the release button on the upside of the impact device to test. The sample and the
impact device as well as the operator are all required to be stable now. The action
direction should pass the axis of the impact device.
z Each measure area of the sample usually need 3 to 5 times of testing operation. The
result data dispersion should not more than mean value±15HL。
z The distance between any two impact points or from the center of any impact point to
the edge of testing sample should conform to the regulation of Table 4-1.
z If want accurate conversion from the Leeb hardness value to other hardness value,
contrastive test is needed to get conversion relations for the special material. Use
inspection qualified Leeb hardness tester and corresponding hardness tester to test at
the same sample respectively. For each hardness value, each measure
homogeneously 5 points of Leeb hardness value in the surrounding of more than three
indentations which need conversion hardness, using Leeb hardness arithmetic average
value and corresponding hardness average value as correlative value respectively,
make individual hardness contrastive curve. Contrastive curve at least should include
three group of correlative data.
Table 4-1
TEL: 86-10-51284068
FAX: 86-10- 51733675
10
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet MH180.PDF ] | |
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