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SmartFlow™ USA Technical Specification

A maintenance free, no moving parts, water meter. SmartFlow™ water meters use unique ultrasonic technology to deliver unrivalled accuracy and reliability.

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Smartflow™ Meter Specification
Feature Detail
Principle of operation Ultrasonic transmit time using inline flow cell
Approvals Compliant to ANSI/AWWA C750, OIML R49-1
Battery life 10 years
Temperature tolerance 185°F ambient and water
Pressure rating 232 psi (Max. Operating Pressure)
464 psi(Max. Tested Pressure)
Display 9 digit LCD, Factory Fixed in one of four positions
Enclosure rating IP68 to BS EN 60529 : 1992
Interfaces 4 pin IP68 rated connector giving:
- NPN open collector pulse output
- Interface to SmartFlow™ Inductive Touch pad
- Serial interface for AMR using SmartFlow™ communications protocol
Materials Wetted parts: EMS Grivory HTV-4X1 black 9225 (WRAS listed).
Other parts: Polycarbonate (logos can be customized for OEMs and utilities)
Reverse flow Indicated but not accumulated
Strainers/non-return valves Not required to protect meter

SmartFlow™ Approvals

SmartFlow™ - Metrology Product Summary

SmartFlow™ - Metrology Product Summary
Product   SFA200 SFA225 SFA325
Nominal Bore and Fitting (BSP)   5/8" 5/8" x 3/4" 3/4"
Low Flow (GPM)   0.10 0.10 0.15
High Flow (GPM)   20 20 30
Head Loss at Max Flow   <7.5psi <7.5psi <7.5psi
Thread Size
Straight to ANSI/ASME B1.20.1 (inches)
  ¾" 1" 1"
Dimensions (inches) Length 7 ½" 7 ½" 7 ½"
Height 6 ½" 6 ½" 6 ½"
Meter Weight (lbs)   1.3 1.3 1.6