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) |
| Inmin | = | Lower range of analogue input |
| Inmax | = | Upper range of analogue input |
| FRmin | = | 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.