An important part of selection of the right flowmeter for the application will include the cost of the process cooling water flowmeter, which can vary greatly depending on the type and model. In addition, cost generally increases when features beyond local indication are required. For example, addition of an analog output, Hart, Foundation Fieldbus, Profibus, WirelessHart, totalization and hazardous location approvals generally tend to increase costs.

Keep in mind, too that the accuracy requirements for process cooling water can vary from highly accurate in certain nuclear power plant cooling water applications to, for instance, 3 to 5 percent of flowmeter capacity for cooling water feeding non-critical equipment. In general, more accurate flowmeters tend to be more expensive.