C171 – Totalisation – Instromet USM

Description

This calculates the totals for instromet ultrasonic meters.

References

Kelton calculation reference C171

KIMS calculation reference K177

Options

Spool Correction Factor

  • User entered

Select this option to enter a single multiplier for the correction factor – if no correction is made set this value to 1

  • Calculated

Select this option to calculate the correction factors using the manufacturers equations

Calibration Correction

  • None

Select this option if you do not wish to correct the flow rate for the calibration curve

  • Before Spool Correction

Select this option if you wish to correct the flow rate based on the calibration data before applying the correction for spool temperature and pressure

  • After Spool Correction

Select this option if you wish to correct the flow rate based on the calibration data after applying the correction for spool temperature and pressure

Spool Piece

  • Flanged

Select this option for flanged spool piece meters

  • Welded

Select this option for welded spool piece meters

Calculate for

The calculated total can be expressed in:

  • Observed volume
  • Mass
  • Standard volume
  • Normal volume
  • Energy

Enter elapsed time as

  • Duration

Select this option to enter the elapsed time as a duration

  • Start and end time

Select this option to have the duration calculated from a start and end time

Totals

  • Use start and end totals

Calculation

Flow rate

The flow rate is calculated using K176 – Instromet – Ultrasonic Meter Flow Rate.

Totalisation

The total is calculated by combining the flow rate calculation with the totalisation calculation C203.

 

 

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