Patent ID: 8899819

Claim:
An apparatus for determining the volume of admixture dispensed for a concrete recipe by a system including a storage tank storing admixture, a first component in a fluid dispensing pathway from the storage tank and through which the admixture from the storage tank flows, a second component downstream in the fluid dispensing pathway from the first component, the apparatus comprising: a field box for communication with the first component and with the second component, the field box including a programmable device programmed to: receive a first signal from the first component when admixture flows through the first component, the first signal indicative of an operating parameter of the first component; receive a second signal from the second component when admixture flows through the second component, the second signal indicative of an operating parameter of the second component; based on the first signal, determine a first measure of the amount of the admixture flowing through the first component; based on the second signal, determine a second measure of the amount of the admixture flowing through the second component; and compare the first and second measures.