| Elimination of specular reflection | error is less than the brightness factor of 0.1%, no effect on the concentration measurement |
| Measuring range | 0≤d≤2 |
| Specimen size | 25mm square side length |
| Measuring hole | 22mm diameter circle |
| Repeatability | brightness factor error is less than 0.1% |
| The value of the error | brightness factor error is less than 0.3% |
| Volume(W×D×H) | 37×25×43 cm |
| Weight | 11 Kg |
| Power supply | AC220V 50HZ |
Pencil Core Strength Tester/Strength Testing Machine is used to test the force on the tip of lead core: sharpen the pencil to 20° and install it on the 45 degree gripper, the force value on the tip when there is breakage.
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