Table Of Contents - DGC DHT-100Plus Instruction Manual

1.Summary ............................................................................... 1
2. Principle of Leeb hardness testing method ............................ 1
2.1 History of Leeb hardness testing method .................................. 1
2.2 Definition of Leeb hardness ...................................................... 1
2.3 Available Functions .................................................................. 2
2.4 Symbol of Leeb's hardness values ............................................. 2
3. Pre-treatment of work piece ................................................. 3
3.1 Work piece surface .................................................................. 3
3.2 Weight of work piece ............................................................... 3
3.3 Work piece surface hardened layer .......................................... 3
3.4 No strong magnetism on the work piece surface ....................... 4
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 ............................................................................................. 5
5.2.2 Display area ......................................................................................... 6
5.2.3 Keypad ................................................................................................ 7
6. Operation instruction ............................................................ 8
6.1 Power on ................................................................................. 8
6.2 Parameters setting ................................................................... 8
6.3 Measure .................................................................................. 8
6.3.1 Impact direction settings .................................................................... 8
6.3.2 Material and hardness scales settings ................................................ 9
6.3.3 Average times settings ...................................................................... 10
6.3.4 Tolerance .......................................................................................... 10
6.3.5 Calibration ......................................................................................... 10
6.3.6 Standards .......................................................................................... 10
6.4 Files management .................................................................. 12
6.4.1 New file settings ................................................................................ 12
6.4.2 Storage settings................................................................................. 12
6.4.3 Print file settings ............................................................................... 13
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