Master Meter’s Octave ultrasonic flow meter masters non-revenue water (NRW) and large usage accountability. With a best-in-class turndown ratio as high as 1000:1, the Octave’s wide flow range is among the highest available for any solid-state C&I meter on the market. With FM Approval available on all sizes, the Octave was designed to be the single meter of choice for all of your C&I metering applications including apartment buildings, hospitals, schools, factories, wellheads, and more.

The Octave brings the latest in ultrasonic metering technology to Commercial/Industrial (C&I) water meters and puts precise measurement where the real flows exist. An excellent alternative to mechanical compound, single-jet, floating ball, fire-service type and turbine meters, Octave excels at maintaining sustained accuracy for the life of the meter while providing smart AMR capabilities.

Technical Specifications:

Working Pressure – 175 PSI

Liquid Temperature – 33° – 122 °F

Metrological Characteristics – Meets ANSI/AWWA Standards C715- 18, C750-19, ISO 4064 rev. 2014

Configuration – Compact-Display built into unit

Power Source – 2 x D Size Lithium Thionyl Chloride batteries – 10 year warranted life time

Environmental Protection – NEMA 6P+ (IP68+), Ambient operation temp. -13 °F / +131 °F for the display

Display Units – Multi line 12 digit LCD (ProgrammableUSG, Cubic Feet, Cubic Meters, Acre Feet for volume and GPM, Lt/s, or M³/h for rate of flow)

Output – Programmable Encoder, Pulse, 4-20, or Modbus; Optional dual output available in encoder + pulse

Features & Benefits:

• Grade 316 Stainless Steel (2″-8″), Epoxy Coated Ductile (10″-12″) or Polymer (2″) body design provides full compliance with ANSI/NSF 372 (AB1953 or NSF61G).

• No moving parts. Minimal flow intrusion. Enduring accuracy.

• Easy to install Floating Flanges on 2″-8″ and Integrated Flanges on 10″-12″.

• No required strainer.

• Wide beam ultrasonic measurement sensors for high accuracy and reliable operation.

• Industry standard communication protocol for integration with most third-party AMR/AMI systems.

• Active leak, burst, reverse flow, empty pipe, measurement failure, and low battery. LCD also displays rate of flow and water temperature.

• Ruggedized NEMA 6P/IP-68+ construction; fully submersible design.

• Designed to meet standards for both North American and International C&I water meters.

• Optional flow measurements; Forward Only, Net Volume or Alternating Display (Forward and Reverse Consumption displayed separately).

Stainless Steel 3-12″ Brochure

Polymer 1.5-2″ Brochure