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KROHNE Summit 8800 Vol 2 User Manual

Page 95

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95

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08/2013 - MA SUMMIT 8800 Vol2 R02 en

SUMMIT 8800

STREAM CONFIGURATION

06

Figure 86 Liquid K-factor Curve

Up to 20 flow rates with a corresponding K factor can be entered. When less are needed, leave

the others blank. Always start with the lowest flow rate and make sure the rest is entered in

ascending order.

The factors obtained during calibration/proving of a meter which are the corrections needed to

linearise the meter. This is expressed by a variation of the K-factor over the specified flow range.

So for each flow rate a different K-factor is used. In between the given flow rates a linear inter-

polation is used. For flow above maximum extrapolation is used.

6 .4 .3 Gas and steam flow rate correction

For more details see section: Meter Corrections

Figure 87 Gas or steam flow rate correction for a 6 point calibration

Meters may be calibrated on different flow rates to determine the deviation from a standard. The

result is an error curve. For meter correction this curve can be entered as a table of data points

of flow rate and corresponding error.