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Product : Pen Style Hardness Tester(Upgrade)
Model : DH110
Country of Origin : CHINA
Brand : DTEC
Quality Certified : CE,GB/T 17394-1998, ASTM A956
Delivery Time : 3 days
Packing Weight : 5.0KG
Dimension : 37x30x12cm(LxWxH)
Package Type : Maker's Standard Export Carton
Courier : DHL/TNT/FedEx/UPS/EMS/Shipping Agent
Payment Term : TT100%/Private Bank Account/L/C/Paypal/Western Union
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- Product Intro
- Feature
- Specification
- Packing List
Similar as DH100,it can be performance in a narrow space, in which other hardness testers feel difficult to measure. It is applicable to big specimen on-site hardness testing and batch testing on the specimen in production lines. Moreover, it is also used in metal manufacturing industry, transportation, Power station, petrochemical industry, aircraft industry,construction and lab,etc.
Working Principle:
When the impact body,with a certain weight,impacts against the specimen surface under the action of spring force,Leeb hardness comes from the ratio of the impacting velocity(VA) and the rebounding velocity(VB) of the impact body by the moment the spherical testing tip is located at 1mm point from specimen surface.
With principle of electromagnetism,the permanent magnet in the coil of impact device produced an induced voltage, which is in proportion to the impact body velocity.
The leeb hardness values are calculated by the following formula:
HL=1000X(Vb/Va)
Using Scopes:
Wheel gear and other toothed specimens
Die cavity of molds
Bearings and other parts
Failure analysis of pressure vessel, steam generator and other equipment
Heavy work piece
The installed machinery and permanently assembled parts
Testing surface of a small hollow space
Material identification in the warehouse of metallic materials
Rapid testing in large range and multi-measuring areas for large-scale work piece
►Pen style design, lightweight, small size, self contained Impact device and display integrated): no cables;
►Interchangeable between D type impact device (standard) and DL type impact device (optional), achieving one unit dual use,which is suitable to be used in the measurement in the restricted areas;
►Double coil design for impact device, without A/D conversion error, which enables to get the speed ratio directly with high repeatability;
►With battery compartment, battery can be replaced. Using standard AAA chargeable Lithium battery;
►High accuracy in any impact direction (360°), automatically identify impact direction and gravity compensation;
►Easy Operation, the four soft keys above the screen achieve the various functions;
►6 Exchangeable hardness scales (HRB/HRC/HV/HB/HS/HL), measurable for the hardness strength σb;
►8 kinds of material available, suitable to measure the hardness of all metallic materials;
►1000 groups storage capacity, with standard data proceeding software and USB cable, enable to connect to PC and make further data analysis;
►Excellent after-sale service system for high quality products.Easy to buy and convenient to use.
Display
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Colorful display, 1.77 inch large OLED with resolution 160x128 pixels. |
Testing Range
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HLD(200-960),HRC(19.8-68.5), HRB(13.5-100), HB(30-651), HV(80-976), HS(26.4-99.5), σb (375-2639). |
Hardness Scale
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HL, HB, HRB, HRC, HV, HS, σb.
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Impact Device
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Standard: D Type, Optional: DL Type |
Calibration
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Automatic
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Accuracy
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±6HLD (HLD=800), Repeatability: <6HLD (HLD=800)
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Resolution
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1HL, 1HV, 1HB, 0.1HRB, 0.1HRC, 0.1HS |
Testing Direction
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360 Degree by Manual Setting
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Available Material
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Steel& Cast Steel, Stainless Steel, GC iron, NC iron, Cast Aluminum alloy, Copper-zinc alloy, Copper-tin alloy, Brass. |
Storage
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1000 Groups (each group include 6 testing results and 1 average value) |
Communication
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USB port, used for recharging and data transmission. |
Software
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Standard LmVIEW Software for transmission, storage, and printing |
Working Temp.
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-10°C—+50°C
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Power Supply
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AAA Polymer lithium battery, capacity of 600 MA/H,voltage:3.7 V, warning when under low voltage |
Auto Off
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AUTO OFF after 3 minutes of inactivity |
Dimension
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37x30x12cm (LxWxH)
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Packing Weight
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About 5.0 KG
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Quality Standard
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GB/T 17394-1998, ASTM A956
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Error and Repeatability of Displayed Value:
No.
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Type of impact device
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Hardness value of Leeb standard hardness block |
Error of displayed value |
Repeatability
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1
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D
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760±30HLD
530±40HLD
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±6 HLD
±10 HLD
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6 HLD
10 HLD
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2
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DC
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760±30HLDC
530±40HLDC
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±6 HLDC
±10 HLDC
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6 HLD
10 HLD
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3
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DL
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878±30HLDL
736±40HLDL
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±12 HLDL
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12 HLDL
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4
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D+15
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766±30HLD+15
544±40HLD+15
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±12 HLD+15
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12 HLD+15
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5
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G
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590±40HLG
500±40HLG
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±12 HLG |
12 HLG |
6
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E
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725±30HLE
508±40HLE
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±12 HLE |
12 HLE |
7
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C
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822±30HLC
590±40HLC
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±12 HLC
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12 HLC
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Testing Range in Different Materials with Different Impact Devices:
Material
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Method
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Impact device
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|||||
D/DC
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D+15
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C
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G
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E
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DL
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Steel and cast steel
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HRC
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20~68.5
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19.3~67.9
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20.0~69.5
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22.4~70.7
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20.6~68.2
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HRB
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38.4~99.6
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47.7~99.9
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37.0~99.9
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HRA
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59.1~85.8
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61.7~88.0
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HB
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127~651
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80~638
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80~683
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90~646
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83~663
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81~646
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HV
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83~976
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80~937
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80~996
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84~1042
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80~950
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HS
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32.2~99.5
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33.3~99.3
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31.8~102.1
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35.8~102.6
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30.6~96.8
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Cold work
tool steel
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HRC
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20.4~67.1
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19.8~68.2
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20.7~68.2
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22.6~70.2
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HV
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80~898
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80~935
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100~941
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82~1009
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Stainless steel
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HRB
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46.5~101.7
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HB
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85~655
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HV
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85~802
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Grey cast iron
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HRC
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HB
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93~334
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92~326
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HV
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Nodular cast iron
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HRC
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HB
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131~387
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127~364
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HV
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|
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Cast aluminum alloys
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HB
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19~164
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23~210
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32~168
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HRB
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23.8~84.6
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22.7~85.0
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23.8~85.5
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BRASS(copper-zinc alloys)
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HB
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40~173
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HRB
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13.5~95.3
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BRONZE(copper-aluminum/tin alloys)
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HB
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60~290
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Wrought copper alloys
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HB
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45~315
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Testing Parameter of Impact Devices:
Type of impact device
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DC(D)/DL
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D+15
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C
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G
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E
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Impacting energy
Mass of impact body
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11mJ
5.5g/7.2g
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11mJ
7.8g
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2.7mJ
3.0g
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90mJ
20.0g
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11mJ
5.5g
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Test tip hardness
Dia. Test tip
Material of test tip
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1600HV
3mm
Tungsten carbide
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1600HV
3mm
Tungsten carbide
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1600HV
3mm
Tungsten carbide
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1600HV
5mm
Tungsten carbide
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5000HV
3mm
synthetic diamond
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Impact device diameter
Impact device length
Impact device weight
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20mm
86(147)/ 75mm 50g
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20mm
162mm
80g
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20mm
141mm
75g
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30mm
254mm
250g
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20mm
155mm
80g
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Max. hardness of sample
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940HV
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940HV
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1000HV
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650HB
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1200HV
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Mean roughness value of sample surface Ra
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1.6μm
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1.6μm
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0.4μm
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6.3μm
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1.6μm
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Min. weight of sample
Measure directly
Need support firmly
Need coupling tightly
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>5kg
2~5kg
0.05~2kg
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>5kg
2~5kg
0.05~2kg
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>1.5kg
0.5~1.5kg
0.02~0.5kg
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>15kg
5~15kg
0.5~5kg
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>5kg
2~5kg
0.05~2kg
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Min. thickness of sample Coupling tightly
Min. layer thickness for surface hardening
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5mm
≥0.8mm
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5mm
≥0.8mm
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1mm
≥0.2mm
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10mm
≥1.2mm
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5mm
≥0.8mm
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Size of tip indentation
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|||||||||
Hardness 300HV
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Indentation diameter
Depth of indentation
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0.54mm
24μm
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0.54mm
24μm
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0.38mm
12μm
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1.03mm
53μm
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0.54mm
24μm
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Hardness 600HV
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Indentation diameter
Depth of indentation
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0.54mm
17μm
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0.54mm
17μm
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0.32mm
8μm
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0.90mm
41μm
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0.54mm
17μm
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Hardness 800HV
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Indentation diameter
Depth of indentation
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0.35mm
10μm
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0.35mm
10μm
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0.35mm
7μm
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--
--
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0.35mm
10μm
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Available type of impact device
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DC: Test hole or hollow cylindrical; DL:Testslender narrow groove or hole |
D+15: Test groove or reentrant surface
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C: Test small,light,thin parts and surface of hardened layer
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G: Test large, thick,heavy and rough surface steel
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E: Test super high hardness material
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No.
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Items
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Qty.
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1
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DH110 Main Unit (D)
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1
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2
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Standard Hardness Block
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1
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3
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Cleaning Brush
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1
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4
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Small Support Ring
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1
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5
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AAA chargeable Polymer lithium battery |
1
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6
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Charger
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1
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7
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Manual, Warranty Card, Quality Certificate |
1 each
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8
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Data Pro Software and USB Cable
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1
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9
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Package Case
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1
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Optional Accessories:
No.
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Items
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Notes
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1
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Impact Device
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DL Type
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2
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Impact Body
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For DL Type
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3
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Supporting Ring
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Standard Type and Special Type, 12pcs/set |
4
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Data Processing Software & USB Cable |
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5
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Standard Leeb Hardness Testing Block |
750-850HLD,590-670HLD,490-570HLD,550-630HLG,460-540HLG
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6
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Blue Tooth Wireless Thermal Mini Printer |
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7
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Instrument Case
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35x28x10cm(LxWxH)
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3-Pin Cable for Impact Device (D/DL), 1.5M in length
Impact Body (D/DL)
Supporting Rings(12 pcs. each set)
Specification of Supporting Rings:
Data Processing Software (including USB cable)
Standard Leeb Hardness Testing Block
Items
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Size
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Dimension
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Product Picture
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750-850HLD
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Ф 90 × 55 mm |
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590-670HLD
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490-570HLD
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550-630HLG
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Ф120 × 70 mm |
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460-540HLG
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AA Grade Leeb Hardness Standard Block |
750-850HLD
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Ф 90 × 55 mm |
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590-670HLD
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490-570HLD
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550-630HLG
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Ф120 × 70 mm |
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460-540HLG
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