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Summary of Contents for DGC DHT-400PLUS
- Page 1 INSTRUCTION MANUAL HARDNESS TESTER DHT- 400PLUS V1.0.0...
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Page 2: Table Of Contents
4. Selection and performance of impact device ......4 4.1 Selection of impact device ............4 4.2 performance of impact devices ..........4 5. Functions of DHT-400PLUS ............ 5 5.1 Technical specifications ............5 5.2 Nomenclature of DHT-400PLUS ..........5 5.2.1 Main unit ..................... - Page 3 Appendix 1:Measuring range: ............16 Appendix 2: Features of impact devices ........17 Appendix 3:Material Applicable table .......... 18 Appendix 4: Supporting rings ............19...
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Page 4: Summary
Hardness Tester DHT-400PLUS 1. Summary DHT-400PLUS Leeb hardness tester, based on the principle of Leeb theory, can be used for hardness testing of various metals. With the feature of integrated model, it is suitable for working on various circumstances. The Leeb hardness values can be easily converted to HRC, HRB, HV, HS and so on. -
Page 5: Symbol Of Leeb's Hardness Values
Hardness Tester DHT-400PLUS Figure 1 Voltage features of output signal The Leeb hardness values can be converted to other hardness scales directly, such as HV, HRC, HRB, HB and HS. 2.3 Symbol of Leeb’s hardness values Just like the other hardness scales, users will get different hardness values with different impact devices, for example: 720HLD≠720HLC. -
Page 6: Weight Of Work Piece
Hardness Tester DHT-400PLUS 0.4um The small support ring or non-conventional support rings are required for work piece with curved surface radius less than 30mm, for details please refer to appendix 4. 3.2 Weight of work piece No support is required for work piece weight more than 5kg. -
Page 7: No Strong Magnetism On The Work Piece Surface
Hardness Tester DHT-400PLUS 3.4 No strong magnetism on the work piece surface Strong magnetism will affect the circuit winding greatly, and affect the accuracy of testing results, so it is required to avoid strong magnetism during testing. 4. Selection and performance of impact device 4.1 Selection of impact device... -
Page 8: Functions Of Dht-400Plus
Hardness Tester DHT-400PLUS 5. Functions of DHT-400PLUS 5.1 Technical specifications Display: 128×64 matrix OLED display Meas. Range: HL 174-900 HRC 19.6-68.0 HRB 13.5-101.7 HS 32.5-99.5 HB 20-655 HV 80-940 Error 0.5%(HL＝800), Repeatability 0.5% Display accuracy: Memory: 10 customized files X 200 data/each file... -
Page 9: Display Area
Hardness Tester DHT-400PLUS 5.2.2 Display area Hardness scale Measuring value Average value Maximum value Minimum value Memory location Battery power Times of measurement/average ... -
Page 10: Operation Instruction
Hardness Tester DHT-400PLUS 6. Operation instruction 6.1 Power on Press key to power on. The following information is displayed. 1. Instrument model, Series No., Software version 2. Parameters of last setting 6.2 Parameters setting Various parameter settings and management can be accomplished via the instrument menu. - Page 11 Hardness Tester DHT-400PLUS 6.2.3 Material and hardness scales settings - Press key and key to enter MEASURE- MATERIAL. - Press key to enter this item, - Press key or key for setting, - Press key to confirm. Then hardness scales setting...
- Page 12 Hardness Tester DHT-400PLUS 6.2.5 Memory 6.2.5.1 Memory on/off - Press key and key to enter MEMORY. - Press key to enter this item, use key or to set memory on or off. - Press key to confirm. 6.2.5.2 File Setting The gauge provides 2000 memory locations in 10 files from A to J, 200 data per each file.
- Page 13 For users’ convenience, the gauge offers optional Bluetooth printer to print original data. 6.2.6.1 Print When users purchase the optional Bluetooth printer with DHT-400Plus together, manufacture has already paired them before shipment. Then users could print the data directly. - Press key and key to enter Print.
- Page 14 Pair Printer. -Press key to enter this item Meanwhile users switch on the printer and gauge of DHT-400Plus pairs printer automatically. 1. If Pair printer is successful, users could print the data follow the step of 6.2.6.1 Print.
- Page 15 Hardness Tester DHT-400PLUS -Press key and key to enter CALIBRATION, -Press key to enter this item, -Press key or key for setting, -Press key to confirm. 6.2.8 Auto shutdown To avoid wasting of battery power, the instrument is equipped with various kind of turning off functions.
- Page 16 Hardness Tester DHT-400PLUS 6.2.10 Standards This gauge offers users in Hardness standards option to meet requirements in different countries. -Press key and key to enter STANDARDS, -Press key to enter this item, -Press key or key for setting, -Press key to confirm.
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Page 17: Data Output Through Usb To Pc
7.1 Maintenance of battery The battery of DHT-400PLUS should be charged timely to avoid damage. The proper charging time is about 5 to 6 hours. If this instrument is not used for long time, it is suggested to charge once per month to keep live of batteries. -
Page 18: Maintenance Of Impact Device Cable
7.5 Maintenance of instrument The Leeb Hardness Tester DHT-400PLUS has endured strict checking. It completely conforms to the national standards and our company standards. The following after sales services are guaranteed: 1. -
Page 19: Packing List
Hardness Tester DHT-400PLUS 8. Packing list The standard delivery includes: Code Content Quantity Main unit DHT-400PLUS 1 set Impact device (standard D) including: big/small support rings 1 set and brush Standard Leeb hardness test block 1 Pc USB connecting cable... -
Page 20: Appendix 2: Features Of Impact Devices
Hardness Tester DHT-400PLUS Table 2: Impact Device – C, Measuring Range LC: 350-950 Material Steel & Cast St. 350-950 20.0-69.5 80-683 80-996 31.9-99.6 Table 3: Impact Device – G, Measuring Range LG: 300-750 Material Steel & Cast St. 300-750 47.7-99.9 90-646... -
Page 21: Appendix 3:Material Applicable Table
Hardness Tester DHT-400PLUS Appendix 3: Material Applicable table Material D＋15 ★ ★ ★ ★ ★ ★ Steel and cast steel ★ ★ ★ ★ CWT.ST ★ ★ ★ ★ ★ GC.IRON ★ ★ ★ NC.IRON ★ ★ C.ALUM ★ ★... -
Page 22: Appendix 4: Supporting Rings
Hardness Tester DHT-400PLUS Appendix 4: Supporting rings Type Sketch Remarks Z10-15 For cylindrical outside surface R10-R15 Z14.5-30 For cylindrical outside surface R14.5～R30 Z25-50 For cylindrical outside surface R25～R50 HZ11-13 For cylindrical inside surface R11～R13 HZ12.5-17 For cylindrical inside surface R12.5～R17 HZ16.5-30...
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