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Products > Portable Hardness > Leeb Hardness Tester > Pen Style Leeb Hardness Tester(D)
Product : Pen Style Leeb Hardness Tester(D)
Model : DH100D
Country of Origin : China
Brand : DTEC
Quality Certified : CE,ISO
Delivery Time : 3 days
Packing Weight : 5.5KG
Dimension : 33x28x15cm(LxWxH)
Package Type : Carton
Courier : DHL,TNT,FedEx,UPS,EMS,Shipping Agent
Payment Term : TT,Private Bank Account,LC,Paypal,Western Union
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  • Product Intro
  • Feature
  • Specification
  • Packing List
DH100 pocket-size leeb hardness tester can directly measure different types of hardness value including (HRC, HRB, HRA), Leeb (HL), Brinell (HB), Vickers (HV),and Shaw (HS). In accord with international standards it's also can meet the "Leeb hardness tester technical conditions ZBN7l 010-90" and the "metal in the hardness test method GB / T 17394-1998" Leeb hardness standard JB/ T9378-2001 standards which are issued by the Ministry of Machinery Industry and National Quality and Technical Supervision.
With low-power design and high-performance Li batteries which can achieve ultra-long standby time work it has more compact and flexible design increases user flexibility.
DH100.jpg


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)

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Main Application:
  • 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
  • Full English menu display,easy to manipulate. OLED display for better use in any environments;
  • With Micro USB communication port;
  • Suitable for three types of impact devices:D/DL/G,can meet various condition of testing workpieces;
  • Bluetooth module included, it can communicate with Bluetooth printer, mobile phone and PC;
  • Large memory capacity,can store 373~2688 groups (impact average times32~1) of information including single measured value, mean value, testing date, impact direction, impact times, material and hardness scale etc. ;
  • Conversion to tensile strength (U.T.S);
  • Suitable for all metallic materials;
  • Provide software calibration function;
  • High-performance Li battery with charging circuit providing extra-long working time and standby time. Battery sign displays the current remaining power;
  • PC Software can be equipped to meet the higher demands in quality assurance, activities and management.
Model
DH100
Hardness scale
HL, HRC, HRB, HRA, HV, HB, HS
Measuring range
HLD(170 ~ 960), HRA(59 ~ 85), HRB(13 ~ 100), HRC(20 ~ 68),
HB(19 ~ 651), HV(80 ~ 967), HS(30 ~ 100)
Clock
Real-time data and time
Auto off
3~5 Minutes without any operation
Data Interface
USB,Blue tooth
Power
Rechargeable Li Battery, 3.7V
Memory
373~2688 group (Impact times: 32~1)
Display
128 × 36 OLED
Continuous Working time
About 30h
Charging time
1.5 ~ 2 hours
Overall dimensions
148 × 33 × 30 mm
Weight
95g
 
Error and Repeatability of Displayed Value:
No.
Type of impact device
Hardness value of Leeb standard hardness block
Error of displayed value
Repeatability
1
D
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
5
G
590±40HLG
500±40HLG
±12 HLG
12 HLG
6
E
725±30HLE
508±40HLE
±12 HLE
12 HLE
7
C
822±30HLC
590±40HLC
±12 HLC
12 HLC
 
Testing Range in Different Materials with Different Impact Devices:
Material
Method
Impact device
D/DC
D+15
C
G
E
DL
Steel and cast steel
 
HRC
20~68.5
19.3~67.9
20.0~69.5
 
22.4~70.7
20.6~68.2
HRB
38.4~99.6
 
 
47.7~99.9
 
37.0~99.9
HRA
59.1~85.8
 
 
 
61.7~88.0
 
HB
127~651
80~638
80~683
90~646
83~663
81~646
HV
83~976
80~937
80~996
 
84~1042
80~950
HS
32.2~99.5
33.3~99.3
31.8~102.1
 
35.8~102.6
30.6~96.8
Cold work
tool steel
HRC
20.4~67.1
19.8~68.2
20.7~68.2
 
22.6~70.2
 
HV
80~898
80~935
100~941
 
82~1009
 
Stainless steel
 
HRB
46.5~101.7
 
 
 
 
 
HB
85~655
 
 
 
 
 
HV
85~802
 
 
 
 
 
Grey cast iron
 
HRC
 
 
 
 
 
 
HB
93~334
 
 
92~326
 
 
HV
 
 
 
 
 
 
Nodular cast iron
HRC
 
 
 
 
 
 
HB
131~387
 
 
127~364
 
 
HV
 
 
 
 
 
 
Cast aluminum alloys
HB
19~164
 
23~210
32~168
 
 
HRB
23.8~84.6
 
22.7~85.0
23.8~85.5
 
 
BRASS(copper-zinc alloys)
 
HB
40~173
 
 
 
 
 
HRB
13.5~95.3
 
 
 
 
 
BRONZE(copper-aluminum/tin alloys)
HB
60~290
 
 
 
 
 
Wrought copper alloys
HB
45~315
 
 
 
 
 
 
Testing Parameter of Impact Devices:
 
testing parameter impact device.jpg
Specification of Supporting Rings:
Supporting Ring.jpg
 

No.
Items
Qty.
1
DH100 Main Unit (D)
1
2
D type Standard Hardness Block
1
3
Cleaning Brush
1
4
Small Support Ring
1
5
chargeable Polymer lithium battery(installed inside unit)
1
6
Charger
1
7
Manual, Warranty Card, Quality Certificate
1 each
8
Data Pro Software Disk and USB Cable
1
9
Package Case
1
 
 
  
 

 
  Optional Accessories:
 
No.
Items
Notes
1
Impact Device
DL/G Type
2
Impact Body
For DL/G Type
3
Supporting Ring
Standard Type and Special Type, 12pcs/set
4
Data Processing Software & USB Cable
 
5
Standard Leeb Hardness Testing Block
750-850HLD,590-670HLD,490-570HLD,550-630HLG,460-540HLG
6
Blue Tooth Wireless Thermal Mini Printer
 
7
Instrument Case
28x20x15cm(LxWxH)
 
Standard Leeb Hardness Testing Block:
.jpg
 
Impact Devices(This model only suitable for D and DL Type)
DL Impact Device
D probe.jpg
 
impact device.jpg
 
Cables for Impact Device(1.5M in Length):
 
 
 
 
Supporting Rings(12 pcs. each set):
Supporting Ring.jpg