Linearization - KERN and SOHN PFB 120-3A Mode D'emploi

7.7 Linearization

Linearity shows the greatest deviation of a weight display on the scale to the value of
the respective test weight according to plus and minus over the entire weighing
range.
If linearity deviation is discovered during a monitoring of test resources, you can
improve this by means of linearization.
• In balances with a resolution of > 15 000 dividing steps carrying out a
linearisation is recommended.
• Carrying out linearization is restricted to specialist staff possessing well
acquainted with the workings of weighing scales.
• The test weights to be used must be adapted to the weighing scale's
specifications; see chapter "Monitoring of test equipment".
• Observe stable environmental conditions. Stabilisation requires a certain
warm-up time.
• After successful linearisation you will have to carry out calibration;
see chapter "Monitoring of test equipment".
• Provide the adjustment weights required as shown in table 1.
Table 1 Linearisation points:
Max
120 g
200 g
300 g
1200 g
2000 g
3000 g
6000 g
16
LoAd 1 LoAd 2
30 g 60 g
50 g 100 g
50 g 100 g
300 g 600 g
500 g 1000 g
0.5 kg 1 kg
1 kg 2 kg
LoAd 3 LoAd 4
90 g 120 g
150 g 200 g
200 g 300 g
900 g 1200 g
1500 g 2000 g
2 kg 3 kg
4 kg 6 kg
PFB-BA-e-1741