EICS
Member
can any one help with the math for converting an instantaneous value to a totalised value for Gas Consumption usage every hour.
in the plant we have an existing gas flow meter installed for main gas supply line the value is usually around 2000m3/hr.
the citect SCADA system "samples" this instantaneous value every 20 seconds and logs this value to a trend file. i need to totalise these values for Gas usage consumption every hour.
for this exercise lets assume all instrumentation is calibrated and reading correctly in the I/O device (Bailey Infi 90) and correctly displayed in the SCADA
so for 1 Hour i will have 180 samples (3 / min x 60min) do i simply sum all these values and divide by a value (180?) to get a usage value or have i missed something here ?
in the plant we have an existing gas flow meter installed for main gas supply line the value is usually around 2000m3/hr.
the citect SCADA system "samples" this instantaneous value every 20 seconds and logs this value to a trend file. i need to totalise these values for Gas usage consumption every hour.
for this exercise lets assume all instrumentation is calibrated and reading correctly in the I/O device (Bailey Infi 90) and correctly displayed in the SCADA
so for 1 Hour i will have 180 samples (3 / min x 60min) do i simply sum all these values and divide by a value (180?) to get a usage value or have i missed something here ?
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