E1-milligram-weights-Series

Häfner E1 milligram weights

Name: Häfner E1 milligram weights
SKU: E1-milligram-weights-Series

Reference mass standards and weights of class E1: adjustment, testing and calibration instruments within the quality assurance of balances with more than 1 000 000 steps according to DIN EN ISO 9001 ff., for the calibration of weights of class E2 according to OIML R111, and for high-precision weighing or comparisons on mass comparators.

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Application

E1 mass standards are used, among other applications, in quality assurance, calibration laboratories and applications with high requirements for measuring accuracy, stability and traceability. They can also be used for the calibration and verification of E2 weights according to OIML R111.

Testing and adjustment of high-resolution balances
Quality assurance of balances with a very high number of scale intervals
High-precision weighing and comparison measurements
Calibration of E2 weights
Metrological applications in laboratories, industry and quality assurance

Marking of E1 Mass Standards

According to OIML R111-1:2004, weights of class E1 are not marked with their nominal value or with unit information. 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, up to three 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.

Weight sets and cases

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.

Versions

Single weights, special stainless steel HE210, wire shape	1 mg … 500 mg (9 values). Packaging: Without box, Plastic box with screwed top, Clean room plastic case, Mahogany wooden box.
Sets, special stainless steel HE210, wire shape	1 mg–500 mg (1 values). Packaging: Clean room plastic case, Mahogany wooden box.
Single weights, aluminium, flat polygonal sheets	1 mg … 5 mg (3 values). Packaging: Without box, Plastic box with screwed top, Clean room plastic case, Mahogany wooden box.
Single weights, special stainless steel HE210, flat polygonal sheets	10 mg … 500 mg (6 values). Packaging: Without box, Plastic box with screwed top, Clean room plastic case, Mahogany wooden box.
Sets, special stainless steel HE210, flat polygonal sheets	1 mg–500 mg (1 values). Packaging: Clean room plastic case, Mahogany wooden box.

Maximum permissible errors (OIML R111)

1 mg	± 0,003 mg
2 mg	± 0,003 mg
5 mg	± 0,003 mg
10 mg	± 0,003 mg
20 mg	± 0,003 mg
50 mg	± 0,004 mg
100 mg	± 0,005 mg
200 mg	± 0,006 mg
500 mg	± 0,008 mg

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Escolha modelo, sondas e acessórios. As combinações incompatíveis são bloqueadas na hora; as demais regras são verificadas ao adicionar o equipamento à cotação.