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Related Manuals for DGC DHT-100Plus
Summary of Contents for DGC DHT-100Plus
- Page 1 INSTRUCTION MANUAL HARDNESS TESTER DHT- 100Plus 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-100Plus ............5 5.1 Technical specifications ............5 5.2 Nomenclature of DHT-100Plus ..........5 5.2.1 Main unit ..................... - Page 3 6.4.4 Delete file settings ................14 6.5 Other settings ................ 15 6.5.1 Date and Time settings ..............15 6.5.2 Auto shutdown settings ..............15 6.5.3 Brightness settings ................16 6.5.4 Key sound settings ................16 6.5.5 Language settings ................17 6.5.6 Default....................
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Page 4: Summary
Hardness Tester DHT-100 1. Summary DHT-100Plus Leeb hardness tester, based on the principle of Leeb theory, can be used for hardness testing of various metals. With the feature of compact size, 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: Available Functions
PLUS Hardness Tester DHT-100 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 Available Functions ●320×240 matrix TFT Color LCD ●Auto connects to 32 bits / 64 bits computer system. ●100 files x 100 data can be stored. -
Page 6: Pre-Treatment Of Work Piece
PLUS Hardness Tester DHT-100 3. Pre-treatment of work piece To get the accurate measuring results, pre-treatment of work piece is required. 3.1 Work piece surface Temperature of work piece should be less than 80℃； The surface roughness requirements are listed in table 3.1.1 Table: 3.1.1 Impact Device Work piece of surface roughness... -
Page 7: No Strong Magnetism On The Work Piece Surface
PLUS Hardness Tester DHT-100 Tale: 3.3.1 Impact device Minimum depth of surface hardened layer 0.8mm D, DC, D＋15 0.2mm 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. -
Page 8: Functions Of Dht-100Plus
PLUS Hardness Tester DHT-100 5. Functions of DHT-100Plus 5.1 Technical specifications Display: 320×240 matrix TFT Color LCD 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: 100 customized files X 100 data/each file... -
Page 9: Display Area
PLUS Hardness Tester DHT-100 5.2.2 Display area 1 Impact direction 2 Auto save 3 Date and time 4 Current file 5 Sound indication 6 Power indication 7 Impact device type 8 Avg. value of testing result 9 Hardness scale 10 Max value of testing result 11 Min. -
Page 10: Keypad
PLUS Hardness Tester DHT-100 5.2.3 Keypad 1.Power key 1.Power on or off the instrument 1.Left Key 1.Adjust the menu items 1.Right key 1.Adjust the menu items 1.Up Key 1.Adjust the menu items 1.Down Key 1.Adjust the menu items; 1.Menu & confirm key 1.Enter into the menu and confirm the settings 1.Menu Esc. -
Page 11: Operation Instruction
It can also be changed during the measurement operation. 6.3.1 Impact direction settings DHT-100Plus can be used for hardness measuring in different directions, but different direction meets different requirements, so it is very important to select the proper impacting direction. Normally the direction is DOWN. -
Page 12: Material And Hardness Scales Settings
6.3.2 Material and hardness scales settings During measurement performance, the material set must conform to the actual measured material. DHT-100Plus hardness tester supplies 9 kinds of materials for actual measurement. For each material, there is accordingly different hardness scales. For details, please refer to appendix 2 and 3. -
Page 13: Average Times Settings
PLUS Hardness Tester DHT-100 6.3.3 Average times settings It is extremely necessary to work out the average measuring values in leeb's hardness testing. Different measuring times between 2~8 are selected according to users’ different requirements. - Press the key and the key to enter MEASURE—AVERAGE, - Press the key to enter this item, use the... - Page 14 Measuring error can be usually caused by impact device abrasion or changing another impact device. So it is necessary to correct the error and get more accurate value close to work piece. Hardness tester DHT-100Plus supplies users with this function to correct the error mentioned above.
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Page 15: Files Management
6.4.1 New files settings Via this sub-menu, users are allowed to set the number of files freely. DHT-100Plus hardness tester supplies users 100 files, which are coded from F001 to F100. Per each file, there is also 100 data storage, which is coded from 001 to 100. -
Page 16: Print File Settings
PLUS Hardness Tester DHT-100 -Press the key and the key to enter FILES--SETUP STORAGE, -Press the key to enter this item, -Press the key or key for setting, -Press the key to confirm. 6.4.3 Print file settings Via this function, the saved data in instrument can be printed out through optional Bluetooth printer. -
Page 17: Delete File Settings
PLUS Hardness Tester DHT-100 -Press the key and the key to enter FILES--PRINT OUT, -Press the key to enter this item, -Press the key or key for setting, -Press the key to confirm. Notice: For safety of data stored in the main unit, it is suggested that users should transfer all the saved data to PC or print them out after the measurement. -
Page 18: Other Settings
PLUS Hardness Tester DHT-100 -Press the key and the key to enter FILES—DELET EALL FILES, -Press the key to enter this item, -Press the key or key for setting, -Press the key to confirm. Notice: The deleted files will never be able to come back, so please be careful about your operation. -
Page 19: Brightness Settings
Notice: It is not suggested to use the function of “DISABLE”, which consumes more power of batteries, even out of usage. 6.5.3 LCD brightness settings DHT-100Plus supplies the function of brightness settings of LCD. Users can adjust the brightness freely according to the operation circumstance. -Press the... -
Page 20: Language Settings
6.6 Data output through USB to PC DHT-100Plus Leeb hardness tester supplies users very powerful USB data port for transferring saved data to PC. 1. Connect DHT-100Plus to PC with USB cable, in several seconds you will find a new Disk is displayed. -
Page 21: Deleting Of Wrong Measuring Data
7.1 Maintenance of battery DHT-100Plus works with 2PCS of AA alkaline battery. It is easy for users to replace if it is in low battery condition. Notice: If this main unit is not used for so long, please take out the batteries for free of corrosion to the electronic board. -
Page 22: Maintenance Of Instrument
PLUS Hardness Tester DHT-100 7.5 Maintenance of instrument The Leeb Hardness Tester DHT-100Plus has endured strict checking. It completely conforms to the national standards and our company standards. The following after sales services are guaranteed: 1. In the first 3 months after purchasing, we supply complete free repairing and exchanging. -
Page 23: Appendix
PLUS Hardness Tester DHT-100 9. Appendix Appendix 1: Measuring range Table 1: Impact Device – D, DC D+15 Measuring Range LD:174-900 Material Steel 300-900 20.0-68.0 38.4-99.5 80-647 80-940 32.5-99.5 C.W. Tool Steel 300-840 20.4-67.1 80-898 Stainless ST 300-800 19.6-62.4 46.5-101.7 85-655 85-802 Gray Cast Iron 360-650 93-334... -
Page 24: Appendix 2: Features Of Impact Devices
PLUS Hardness Tester DHT-100 Appendix 2: Features of impact devices Configuration Type Application features Standard Used for normal measurement configuration Used for hardness measurement on local Short size, loaded parts of work piece: holes, inner cylindrical with loading tube face or inner face of solid installed parts. Used for measuring in grooves or concaved Long size D＋15... -
Page 25: Appendix 4: Supporting Rings
PLUS Hardness Tester DHT-100 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 For cylindrical inside surface R16.5～R30 K10-15...