# C143 – Flow Totalisation – Analogue Input

## Description

This carries out the flow rate and totals given an analogue input.

## References

Kelton calculation reference C143

KIMS calculation reference K128

## Options

### Analogue Input

- Current
- Voltage

This option is chosen to indicate whether the input is a current or a voltage.

### Flow Rate

- Mass
- Volume
- Standard Volume

This option is used to select the type of flow rate required for output.

### Measure Input as Current/Voltage

- No
- Yes

This option allows a current/voltage reading to be input with a resistance, the range will use voltage/current(s).

### Enter elapsed time as

- Duration
- Start and end time

This option gives a choice of entering time as a duration or as the start and end time in date time format.

## Calculation

### Flow Rate

The flow rate is calculated by:

Where | ||
---|---|---|

In | = | Analogue input (current or voltage input) |

In_{min} |
= | Lower range of analogue input |

Inmax | = | Upper range of analogue input |

FR_{min} |
= | Lower range of flow rate |

FRmax | = | Upper range of flow rate |

### Totals

The totals are calculated as in C203 – Totalisation conversion using the output of the above equation and the elapsed time.