Yokogawa 202 Field Mounting Rate Totalizer User Manual
Page 16
3.2 CALCULATION OF RATE AND TOTAL
3.2.1 Analog Input
The flowrate, R, is calculated as follows:
R = SA
if the linear relationship is selected
or
R = S
if a square law relationship is selected.
A
where A = the input value.
S = the span.
At the minimum input (ie. 4mA), A = 0, and at the maximum input (ie. 20mA),
A = 1.
The Span, S, can be set during calibration anywhere in the range of 0.000001 to
999,999.
The Span, S, is programmed in units of volume per timebase (ie. litres/minute or
kilograms/hour). This also means that the Total will be displayed with the same
unit of volume, ie. litres or kilograms.
14 Programming