Sartorius CPA12001S-OCE Specifications download pdf (Page 63)

63

Weights and Weight Sets (YCW, YCS)

The complete line – ranging from

weights to certified testing services

Regular inspection and testing of weighing

instruments are a must to ensure reliable

weighing results. Sartorius offers highly

accurate metrological weights and weight

sets with nominal mass values from 1 mg

to 1,000 kg, special and test weights, as

well as the accessories required for correct

handling and storage of weights.

Sartorius weights and weight sets are cali-

brated by the DKD* and comply with the

International Recommendation OIMLR111:

2004. They are therefore suitable for legal

and general metrological applications in

research and industry.

Sartorius weights meet the requirements

for traceability to the national kilogram

prototype in conformance with ISO

9001:2000. These weights help support

your quality management and quality

assurance systems, and fulfill GLP and

GMP requirements.

Your DKD partner for mass units

Sartorius is a DKD calibration laboratory

for both weights and electronic laboratory

balances and industrial scales. Sartorius

calibration laboratories have been inspect-

ed and accredited for compliance with the

regulations of the German calibration serv-

ice, DKD, concerning mass units and meet

the DIN EN ISO IEC 17025 international

standard for test laboratories.

Recalibration for any brand names,

manufacturers and designs

Depending on how frequently weights are

used, they must be recalibrated on a regu-

lar basis so that they meet the require-

ments for reliable measuring, inspection

and test equipment. Sartorius offers recali-

bration service along with DKD calibration

certificates for all weights ranging from

1 mg to 50 kg, regardless of their design or

brand name, and up to 500 kg for F2 and

M1 weights.

Here’s how to find the right test weight

Just determine the number of digits speci-

fied for your weighing instrument’s resolu-

tion, then check the graph below for the

particular accuracy class that your test

weight must have.

The weight value of your test weight

should be more than 80% of the maximum

capacity of your weighing instrument.

Use the following chart to determine

whether you need an individual weight or

a weight set by comparing the nominal

mass values.

Example: Suppose your weighing instru-

ment has a capacity of 2,200 g and a read-

ability of 0.01 g. This yields 220,000 digits,

which correspond to a class E2 test weight.

Since 80% of 2,200 g is 1,760 g, you need

to round it to a weight value of 2,000 g.

Nominal value

Steps

1,000,000

n = m:d

n = resolution of your weighing instrument (digits)

max = weighing capacity of your instrument

d = readability of your instrument

500,000

* or E2, DKD-calibrated

100,000

50,000

10,000

5,000

M1 F2 F1 E2 E1* Class

1 2 ... 58 59 60 61 62 63 64 65 66 67 68 ... 87 88

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