Ultrasonic Water Meters

Octave Ultrasonic Water Meters

The Octave water meter range was developed by Arad to meet the requirements of users needing a bulk water meter able to accurately measure water flow at both high and low flows. Low flow rates being especially important for water companies using water meters to detection leakage in their networks and also for accurate customer billing. Octave ultrasonic water meters use a double beam ultrasonic measuring technique called “sing around” (see below) which gives precise measurement of water flow rates and water volume. Octave ultrasonic meters all feature a rigid construction, with IP68 protection for all the electronic, the battery has a life expectancy of up to 15 years. The complete absence of moving parts results in a very high degree of reliability.  The wide unobstructed flow path through the meter body endows these meters with a very low pressure loss, even at high flows, and also means that Octave water meters are virtually immune to problems caused by solids in the water flow.  All Octave meters are of a compact (single unit) design with a built-in multifunction LCD display showing: volume, flow rate, pulse volume, flow direction and units of measure. They are AMR(automatic meter reading)ready with options for digital volume and analogue flow rate measurement.

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Request Octave ultrasonic water meters brochure with data sheet information.



Features of the Octave Range

  •     Dual beam ultrasonic technology for precise and ultra reliable metering
  •     No moving parts
  •     Excellent long-term stability and reliability
  •     Battery powered - up to 15 years life expectancy
  •     Rugged mechanical design - Submersible (IP68)
  •     Extremely sensitive and accurate measurement at low flows and high flows with a Q3/Q1 flow measuring ratio of R 500 for most types.
  •     Bi-directional - including bi-directional outputs
  •    Wide choice of available output types: analogue, digital pulse, dry-contact, encoder output, Mbus and solid state relay.
  •     Flexible data formats including flow directions, flow rates, volumes and leak detection
  •     Alerts and statistics features
  •     AMR and cellular networks ready
  •     Dual line LCD display
  •     Programmable display (units and outputs resolution)
  •     Can replace combination water meters - Measuring high and low flow in a single unit
  •     WRAS and other world approvals
  •    Configured to customer requirements before delivery


 

Ultrasonic measuring Technology

The Arad Group has developed a dual beam ultrasonic solution called Sing Around.

Sing Around was developed to meet the market's requirement for improved measurement accuracy of water flow.  This innovative technology is integrated into all Octave ultrasonic water meters manufactured by Arad.

The two sets of sensors send sound pulses diagonally across the water flow path from one side of the meter to the other. The system measures the total time it takes to complete one hundred loops with the water flow and against the flow, then subtracts one from the other, thus deriving an average, which is highly accurate.

Sing Around offers the following advantages:
  * Extremely high accuracy.
  * Wide flow range.
  * Stable measurements.

By developing the innovative Sing Around dual beam technology, Arad Group has set the industry's benchmark for accuracy across extremely wide flow ranges(Q1 to Q3 flow rates), endowing most Octave meters with a Q3/Q1 ratio R of 500. Making the Octave water meters both sensitive and accurate at high and low flow rates means a single compact Octave ultrasonic water meter can be used as a replacement for old style mechanical double water meters where a large Woltman (turbine) meter is connected in parallel with a smaller Multijet meter - the Woltman meter handling the high flows and the Multijet meter measuring the small flows.

The use of a single ultrasonic water meter offers obvious advantages when considering installation, calibration and maintenance.


Extensive Choice of Output Options

Octave water meters can be specified with a number of different output configurations.

Analog Output    
Shows the instantaneous water flow rate. The Analog Output is a 4 - 20 mA current loop (the end user must supply power to the unit).
The Analog Output is programmable for forward and reverse flow.
 
The 20mA point can be programmed to any flow rate lower than the maximum flow of the meter.

Digital (pulse) Output    
The Digital (pulse) Output is an open drain transistor output that provides pulse per quantity with these options:
1. Two scaled forward and/or reverse mode pulses
2. One scaled forward pulse and one alarm frequency output
3. Measuring units of the output can be programmed different than displayed units.

Pulse resolution will be shown on the display for each pulse separately

Dry Contact Output    
The Dry Contact Output is a dual mechanical relay output that provides pulse per quantity with these options:
1. Two scaled forward and/or reverse mode pulses
2. One scaled forward pulse and one alarm frequency output
3. Measuring units of the output can be programmed different than displayed units.

Pulse resolution (k factor) will be shown on the display for each pulse separately, an onsite power supply of 5-35 VDC is needed.

SSR (Solid State Relay)   
The SSR is a dual electronic relay output that provides pulse per quantity with these options:
1. Two scaled forward and/or reverse mode pulses
2. One scaled forward pulse and one alarm frequency output
3. Measuring units of the output can be programmed different than displayed units.

Pulse resolution will be shown on the display for each pulse separately
Onsite power supply of 5-35 VDC is needed.

Encoder Output   
The Encoder Output is a serial communication collector utilizing UI1203 or UI1204 communication protocol. (Sensus protocol). Additional pulse output is available as an option.

M-Bus
The improved full Modbus/ M-Bus protocols include an optional pulse output and have the following available functions:
1. Alarms (battery, empty pipe)
2. AMR serial number
3. Real Time Clock (RTC)
4. Volume units
5. Flow rate units
6. Current flow
7. Flow direction
8. Forward and reverse volumes
9. Flow and volume resolution

Output Extension Cable - 5m extension cable for installation in pits and vaults

 

Applications 

The Octave family of products offers the water metering field advanced technologies with exceptional levels of accuracy which are suitable for four different applications:

 

Grid

Octave is a revolutionary precise and exceptionally reliable ultrasonic bulk water meter, perfectly suitable for large projects, as key meters in water works and water distribution networks. The Octave combines superior hydraulic characteristics with advanced alert, data and statistical features.

The world’s leading solution for handling bulk flow rates
Diameter sizes from 2” up to 12”
Made with highly durable materials - epoxy coating, cast iron and more
Reliability at the highest level
District

All of the recognized advantages of Octave, featuring with highly durable materials - cast iron complex, polymeric materials and a variety of new diameter sizes. Suitable for use in medium flow rates from apartment buildings to small neighborhoods/housing projects:

Polymeric version available in diameter sizes 1½” and 2”
Reduced weight to ease load on the plumbing systems and prevent distortions
Low friction sensibility and high durability time
Cost effective
Made from recyclable materials
Sizes 2”- 4” in cast iron complete the range for district uses

Industrial

The Octave Stainless Steel is especially suited to water metering in challenging environments such as production plants, mining and industrial processes.

Diameter sizes from 1½” to 6”
Reliable operation in harsh environments
Suitable for handling aggressive water in industrial processes
Low friction sensibility and high durability over time
Agricultural

For agricultural appliances the Octave is perfectly suitable as main meter with it’s high accuracy, low headloss, electronic information options and diverse electrical outputs

Diameter sizes from 2” up to 12”
No moving parts
Reliable and accurate

 

A Supplier You Can Trust

With over 30 year's experience in the supply of solenoid valves and other fluid control products Beta Valve Systems can supply products from some of Europe's leading component manufacturers to meet your requirements in the areas solenoid valves, water meters, water filtration and pipe fittings.

Since 1991 we have produced our own range of solenoid valves which have been used in applications such as drinks vending industry, gas analysers, floor washers and hydroponics.

We place our customers at the centre of everything we do and strive to provide the highest quality products and service. We offer full technical support, from providing product data sheets straight from our website, to expert technical advice by email, phone or personal visit. Close ties with the manufacturers gives us direct access to our suppliers technical staff too.

To support your development or production requirements we can ship most ex-stock orders the same day from our extensive UK stocks. We also provide logistical support by holding buffer stock against call-offs and scheduled orders.

 

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