M2-knob-weights-Series
Weights of medium accuracy, class M2: adjustment, testing and calibration weights for commercial balances (class III) and for the quality assurance of balances with up to 30 000 steps according to ISO 9001 ff., and for the calibration of weights of class M3.
M2 test weights are commonly used in general commercial transactions, together with commercial balances and in quality assurance. They can also be used for the calibration and verification of weights of class M3 according to OIML R111.
Depending on the accuracy requirements, weights of classes M1, M2 and M3 can also be used as load bodies for tensile, compression or torsion measurements.
According to OIML R111-1:2004, weights of class M2 from 1 g upwards are marked with their nominal value, but without unit information. To identify class M2, the class M2 is additionally applied.
For cylindrical weights with an adjustment cavity, the class marking is usually located on the knob or on the top of the weight. For block-shaped or other designs, the marking may be applied depending on the design and available space.
For differentiation, weights of the same nominal value that occur more than once in weight sets can be marked with dots or stars.
In addition, customer-specific user markings, such as characters, letters or numbers, can be applied. This allows the weights to be clearly identified as test or measuring equipment and better integrated into internal test equipment management.
These user markings can be specified individually when ordering.
All weight sets include gloves, two brushes and two tweezers; sets up to 50 g come without the big tweezers, the big brush and the gloves.
| Single weights, brass (as long as supplies last) | 1 g … 20 kg (14 values). Packaging: Without box, Plastic box with screwed top, Clean room plastic case, Beech wood box, Service case. |
|---|---|
| Sets, brass (as long as supplies last) | 1 g–50 g … 1 g–10 kg (8 values). Packaging: Clean room plastic case, Beech wood box, Service case. |
| Sets, brass, with mg weights (flat polygonal sheets) | 100 mg–50 g … 100 mg–10 kg (8 values). Packaging: Clean room plastic case, Beech wood box, Service case. |
| 1 g | ± 3 mg |
|---|---|
| 2 g | ± 4 mg |
| 5 g | ± 5 mg |
| 10 g | ± 6 mg |
| 20 g | ± 8 mg |
| 50 g | ± 10 mg |
| 100 g | ± 16 mg |
| 200 g | ± 30 mg |
| 500 g | ± 80 mg |
| 1 kg | ± 160 mg |
| 2 kg | ± 300 mg |
| 5 kg | ± 800 mg |
| 10 kg | ± 1600 mg |
| 20 kg | ± 3000 mg |
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