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The reasons why a Coriolis mass flow meter was chosen speak for themselves:•Working with weight measurements and/or differential pressure transmitters for extremely accurate measurements, from tanks of 10,000 up to 16,000l with a product density variation of between 0.7 kg/l and 1.5 kg/l, is very difficult.•The customer recognized the following advantages: reliability, accuracy, guaranteed draining system, easily cleaned system, no moving parts, directly built into the pipelines, low pressure losses.The advantages of Yokogawa on top of the arguments mentioned above were:•Where other suppliers offered several types of equipment to meet the demand, the Yokogawa solution consisted of one type of equipment from the same product range.•Bad experiences with 304 stainless steel housings (brown deposits) were an argument for looking at alternatives. Yokogawa was the only manufacturer who was prepared to take a flexible approach to the manufacturer of the measurement pipe housing in 316L stainless steel and who could also manufacture this model.•Sufficient incidental quality-related arguments in favour of a compact equipment with a low weight, small dimensions and simple installation instructions even under mechanical stress conditions.•Rapid transportation (24 hours) of basic components.•The guarantee that measurement would not fail in the presence of gas bubbles. A simulation showed that up to 50 volume percent air in a two inch meter results in a measurement error, but the meters kept functioning. The measurement error can be reduced most by holding the last correctly measured value when larger quanti-ties of air pass through the meter. When the gas bubbles disappear, the actual correctly measured value is adopted again.In the meantime, the meters have already been operating for several months to the great satisfaction of the users.Yokogawa RotaMASSSuccess Story Collection46Janssen Pharmaceutica / Belgium

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