- Product Details
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Quick Details
-
Brand Name:
-
DTEC
-
Model Number:
-
DH880
-
After-sale Service:
-
1 Years Quality Guarantee
-
Data Interface:
-
USB 2.0, Blootooth
-
Measuring Range:
-
170-960HLD
-
Indication Error:
-
±6HLD
-
Display Mode:
-
High Contrast Segment LCD
-
Optional Impact Device:
-
D/C/G/DC/DL/D+15/E
-
Hardness Scales:
-
HL,HB,HRB,HRC,HRA,HV,HS Exchangeable
-
Continuous working time:
-
About 30h
-
Memory:
-
510 files,47-341 groups (Impact times:32-1) per file
-
Battery:
-
Rechargeable Li Battery, 3.7V, Li(2000mAh)
Quick Details
-
Warranty:
-
1 Year
-
Power:
-
Electronic
-
Place of Origin:
-
Beijing, China
-
Brand Name:
-
DTEC
-
Model Number:
-
DH880
-
After-sale Service:
-
1 Years Quality Guarantee
-
Data Interface:
-
USB 2.0, Blootooth
-
Measuring Range:
-
170-960HLD
-
Indication Error:
-
±6HLD
-
Display Mode:
-
High Contrast Segment LCD
-
Optional Impact Device:
-
D/C/G/DC/DL/D+15/E
-
Hardness Scales:
-
HL,HB,HRB,HRC,HRA,HV,HS Exchangeable
-
Continuous working time:
-
About 30h
-
Memory:
-
510 files,47-341 groups (Impact times:32-1) per file
-
Battery:
-
Rechargeable Li Battery, 3.7V, Li(2000mAh)
DH880 Portable Hardness Tester is an advanced and innovative metal hardness testing instrument, which has many functions such as nice appearance,easy-operated,integrated design,high resolution display,low operation temperature and high accuracy,etc.
It is applicable to big workpiece on-site hardness testing and batch testing on the workpiece 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)
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
- Self R&D App. easily do operation and data management in Mobile phone;
- Automatic identification of Impact devices D/C/DC/DL/G;
- Blootooth module included,can easily connect PC,mobile phone or Blootooth printer;
- High performance rechargeable Li battery, intelligent charging management;
- HOST Computer software:support data query,storage,statisticsand histogram dispiay and other functions and save in Word,Exl,Txt format;
- Mass storage:510 files,47-341 groups (Impact times:32-1) per file;
- Upper and lower limit and sound alarm;
- 2.8” TFT,320*240 Pixel, showing all functions and parameters;
- Direct display of hardness scales HRB, HRC, HV, HB, HS, HL;
- Suitable for all metallic materials;
- Test at any angle, even upside down;
- Wide measuring range;
- Six Impact Devices are available for special application;
- Battery low indication and sound alarm.
|
Hardness scale |
HL, HRC, HRB, HRA, HV, HB, HS |
|
Memory |
510 file,47 ~ 341 groups (Impact times:32 ~ 1) per file |
|
Measuring range |
HLD(170 ~ 960), HRA(59 ~ 85), HRB(13 ~ 100), HRC(20 ~ 68), HB(19 ~ 651), HV(80 ~ 967), HS(30 ~ 100) |
|
Tensile strength U.T.S. range |
374 ~ 2652 MPa |
|
Accuracy |
±6HLD (760±30HLD) error of displayed value |
|
6HLD (760±30HLD) repeatability of displayed value |
|
|
Standard Impact Device |
D |
|
Data Interface |
USB 2.0, Bluetooth |
|
Optional Impact Devices |
DC / D+15 / G / C / DL |
|
Max. Workpiece Hardness |
996HV(For Impact Devices D / DC / DL / D+15 / C) |
|
|
646HB(For Impact Device G) |
|
Min. Radius of Workpiece (convex/concave) |
Rmin = 50mm (with special support ring Rmin = 10mm ) |
|
Min. Workpiece weight |
2 ~ 5kg on stable support |
|
0.05 ~ 2kg with compact coupling |
|
|
Min. Workpiece thickness |
5mm (Impact Devices D/DC/DL/D+15) |
|
1mm (Impact Device C) |
|
|
10mm (Impact Device G) |
|
|
Min. thickness of hardened layers |
0.8mm |
|
Power |
Rechargeable Li Battery, 3.7V, Li(2000mAh) |
|
Continuous Working time |
About 30h |
|
Charging time |
4 ~ 5 hours |
|
Operating temperature |
0 ~ 40ºC |
|
Humidity |
≤ 90% |
|
Overall dimensions |
212 × 80 × 35 mm |
|
Weight |
320g |
|
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
|
|
|
|
|
|
Specification of Supporting Rings:
Standard Packing List:
|
No.
|
Items
|
Qty.
|
|
1
|
DH200 Main Unit
|
1
|
|
2
|
D Type Impact Device
|
1
|
|
3
|
Standard Hardness Block
|
1
|
|
4
|
Cleaning Brush
|
1
|
|
5
|
Small Support Ring
|
1
|
|
6
|
Charger
|
1
|
|
7
|
Manual, Warranty Card, Quality Certificate |
1 each
|
|
8
|
Data Pro Software and USB Cable
|
1
|
|
10
|
Package Case
|
1
|
Optional Accessories:
|
No.
|
Items
|
Notes
|
|
1
|
Impact Device
|
(D/C/G/DC/DL/D+15)
|
|
2
|
Impact Body
|
For all Types: D/C/G/DC/DL/D+15
|
|
3
|
Cable for Impact Device
|
1.5M long,3-pin cable
|
|
4
|
Supporting Ring
|
Standard Type and Special Type, 12pcs/set |
|
5
|
Data Processing Software & USB Cable |
|
|
6
|
Standard Leeb Hardness Testing Block |
750-850HLD,590-670HLD,490-570HLD,550-630HLG,460-540HLG
|
|
7
|
Instrument Case
|
35x28x10cm(LxWxH)
|
Standard Leeb Hardness Testing Block:
Impact Devices(D/C/DC/DL/D+15/E/G)
Cables for Impact Device(1.5M in Length):
Impact Body (D/C/DC/DL/D+15/E/G) :
Supporting Rings(12 pcs. each set):
Multi-functions(query,saving,statistics,bar graph displaying) data proceeding software.
Every set of our equipement will be carefully tested and double checked steps by steps before being packed and delivery,as we all know that among such fierce international competition,only 100% good quality and stable performance can finally attain the customer's trust.Hence,we will always put the equipment calibraton job in the first place while manufacturing.
