PORTABLE HANDHELD ULTRASONIC FLOW METERS

摘要

Innovations in portable ultrasonic flow meter designs allow for much greater accuracy than older technology and, at a reasonable cost, have become a very useful tool in the diagnostic and troubleshooting portion of today's modern testing and balancing work. Although not cost-effective for everyday test and balancing, a hand-held portable unit can be carried and used to check unlimited measuring points throughout a complex hydronic system. With the proper transducers, a handheld unit can handle a wide range of pipe materials, pipe sizes and pipe schedules. As compared to measuring flow through field-installed fixed flow devices, which generally consist of measuring a pressure drop against a known pressure drop, the portable ultrasonic flow meter is continuously reading and displaying a direct flow reading.