accuSTREAM® magnetic drive positive displacement meters use an oscillating piston to provide superior sensitivity in measuring a wide range of flows for a variety of residential applications or similar service needs. The accuSTREAM® meter design includes a high quality composite alloy maincase, dual inlet ports, patented bottom-plate design and streamlined flow pattern to provide lasting measurement accuracy and deliver years of dependable service.
Conformance To Standards
Sensus accuSTREAM water meters meet the requirements of NSF/ANSI Stan- dard 61 Annex F and G and comply with AWWA Stan dard C710 latest revision. Each meter is tested to insure compliance with AWWA standards.
Sensus accuSTREAM water meters consist of three basic components: maincase; measuring chamber; and sealed register. Maincases (including bottom plate) are made of composite material with externally-threaded spuds. Registers are housed in a bonnet of synthetic polymer. Measuring chambers are of Rocksyn®, a corrosion-resistant, tailored thermoplastic material formulated for long-term perfor- mance and especially suitable for aggres- sive water conditions. The accuSTREAM can be installed horizontal.
Hermetically sealed; proven magnetic drive design eliminates dirt and moisture contamination, tampering and lens fogging problems. Standard register includes a straight-reading, odometer-type totalization display; a 360° test circle with center sweep hand; and a low flow (leak) detector. Gears are self-lubricating, molded plastic for long life and minimum friction.
No change gears are required for accu- racy calibration. An electronic encoded register is available for all accuSTREAM meters. The LCD identifies the AMR digit (with a bar above the digit). Rate of flow is viewable by closing and opening the lid. The display will remain on for 30 seconds then will turn off. close and re-open the lid to view the display.
A unique locking system prevents cus- tomer removal of the register to obtain free water. A special tool, available only to water utilities, is required to remove the register assembly.
The accuSTREAM features a hydro-dynamically cushioned design that eliminates premature wear of components. The meter utilizes a patented positive, reliable drive coupling. The high-strength magnets used will eliminate “drive slip” in normal use and also provide adequate strength to drive remote register units.
Water flows through the meter’s strainer and into the measuring chamber where it drives the piston. The hydro-dynamically balanced piston oscillates around a central hub, guided by the division plate.
A drive magnet transmits the motion of the piston to a sensor located within the hermetically sealed register. The sensor is connected to the integrated circuit design that encodes the rotations of the measuring chamber. It reduces the piston oscillations into volume totalization units displayed on the register face.
Sensus accuSTREAM water meters are engineered to provide long-term value and virtually maintenance-free operation. Simplicity of components allows interchangeability of parts of like-size meters, reduced parts inventory requirements, and ease of maintenance. The register can be removed without relieving the water pressure or removing the maincase from the installation.
AMR / AMI Systems
Meters and encoders are compatible with current Sensus AMR/AMI systems.