Micro Vickers - SAHV
Among the common hardness testing method, Vickers hardness testing is with most high accuracy and good repeatability.
Low-load Vickers hardness tester is used for hardness testing of small and high precision parts, hardened surface layers and the effective hardened layers depth, coating surface. Micro Vickers hardness testing is mainly used in metal science and metallographic studies to very tiny parts. Test is performed by applying low loads on a pyramidal Vickers indenter. Trough checking and measure of rhombus diagonals left after test, by microscope, the HV value is defined by a simple calculation. A properly sample preparation is an essential procedure to ensure proper measurement. Vickers Hardness Testers are available in two main models with manual or automatic readings.
Manual Model: first measure optical collimation of mark left diagonals, then compares average resulted with reference tables.
Automatic Model: first optical collimation of mark left diagonals, then read hardness value directly showed on instrument display.
According to: ASTM E384,ASTM E92,ISO 6507,ISO 9385,ISO 4546.
| Model |
SAHV-1, SAHV-5, SAHV-10, SAHV-30, SAHV-50 |
SAHV-1MD, SAHV-5MD, SAHV-10MD, SAHV-30MD, SAHV-50MD |
| Features |
Manual reading |
Automatic reading |
| Automatic loading, dwell and removal |
X |
X |
| Adjustable dwell time |
X |
X |
| Small LCD screen |
X |
-- |
| Large LCD screen |
-- |
X |
| Vickers indenter (HV hardness value) |
X |
X |
| Knoop indenter (HK hardness value) |
X |
X |
| Automatic hardness conversion |
-- |
X |
| Light source mechanism adjustable |
X |
X |
| Auto turret (indenter and object lens switch) |
-- |
X |
| Menu operation panel |
-- |
X |
| Manually diagonal input |
X |
-- |
| Automatically diagonal input |
-- |
X |
| RS232 interface |
-- |
X |
| Built-in printer |
-- |
X |
| Model |
SAHV-1 SAHV-1MD |
SAHV-5 SAHV-5MD |
SAHV-10 SAHV-10MD |
SAHV-30 SAHV-30MD |
SAHV-50 SAHV-50MD |
|
| Test force |
Kgf |
0.01,0.025,0.05, 0.1,02,0.3,0.5,1(2) |
0.3,0.5,1, 2,3,5 |
0.3,0.5,1,2,3,5,10 |
1,3,5,10, 20,30 |
1,5,10,20,30,50 |
|
N |
0.098,0.245,0.49,0.98, 1.96,2.94,4.9,9.8(19.6) |
2.94,4.9,9.8, 19.6,29.4,49.0 |
2.94,4.9,9.8, 19.6,29.4,49,98 |
9.8,29.4,49,98, 196,294 |
9.8,49,98,196, 294,490 |
|
| Loading mechanism |
Applicazione del carico automatico / Automatic load |
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| Dwell time |
0~60s |
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| Turret mechanism | Manual |
SAHV-1 |
SAHV-5 |
SAHV-10 |
SAHV-30 |
SAHV-50 |
| Automatic |
SAHV-1MD |
SAHV-5MD |
SAHV-10MD |
SAHV-30MD |
SAHV-50MD |
|
| Diamond indenter | Standard |
Vickers indenter(HV) |
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| Optional |
Knoop indenter(HK) |
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| Standard object lens |
10×,40× |
10×,20× |
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| Eyepiece |
10× |
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| Magnification |
50×,100×,200×,400×,500× |
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| Min. measuring unit magnification |
0.5 μm |
1 μm |
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| Max height of specimen |
80mm |
160mm |
||||
| Distance of indenter to outer wall |
95mm |
135mm |
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| Available test parameter |
HV/HK |
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| Hardness conversion |
(Only version SAHV-MD) HRA, HRB, HRC, HRD, HRF, HV, HK, HBW, HR15N, HR30N, HR45N, HR15T, HR30T, HR45 |
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| Hardness measuring range |
8~2900HV |
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| Operation panel |
Start/reset/dwell time/test load (Only version SAHV-MD) |
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| Data display |
D1/D2/HV and HK hardness value/Test times and etc. |
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| Standard compliance |
ASTM E384,ASTM E92,ISO 6507,ISO 9385,ISO 4546 |
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| Dimension |
405×290×480 mm |
520×190×650mm |
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| Net weight |
Circa 25kg About 25Kg |
Circa 40kg / About 40Kg |
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| Optional accessories |
Certificate |
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