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External Measurement

of Internal Flow

FLEXIM Ultrasonic Flow Meters

Tim WilkinsSales ManagerAquip Systems

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Aquip Systems & Flexim

• Australian instrumentation company, based in Technology Park, Bentley

• Currently 12 employees, including 5 service engineers & technicians for commissioning/support work.

• Over 20 year history selling and supporting instrumentation, primarily to industrial clients (oil&gas, mining)

• Became WA and NT exclusive distributors for Flexim in 2010 – started becoming more involved with building industry.

• German manufacturer of non-invasive ultrasonic flow metering technology for over 20 years

• Currently ~100 employees, annual turnover ~$30M USD• Clamp-on Ultrasonic Metering is all that they do.• Industries include O&G, Mining, Chemical, Building,

Pharmaceutical, Water etc – flexible technology.• Flexim Asia division set up in 2009, to target the SE Asian

region.

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Typical Clamp-On Ultrasonic Flow Meter –Building Industry

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3

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FLOW

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4

3

0

2

1

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FLOW

Theory:Signal in the direction of flow travels faster compared tosignal against the flow direction. The difference in transittime has a direct relationship with the flow velocity.

A swimmer swims faster with the flow as compared to against the flow.

The sonic signal does the same.

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Flexim FLUXUS F601

• 14+ Hour Li-ion battery

• 2 Channels

• 100,000 data point memory

• IP65

• Advanced A/D converters for high accuracy temperature input (thermal metering)

• Easy-to-use software for trending and reporting

• Ideal for commissioning, audits, surveys etc

Permanent

Flexim Liquid Flow Meters – Building Industry

Portable

Flexim FLUXUS ADM 7407

• 2 Channels

• IP65

• 24V DC or 240V AC

• Modbus, HART, 4-20mA, Relay outputs available

• Advanced A/D converters for high accuracy temperature input (thermal metering)

• Maintenance-Free

• Ideal for high-accuracy flow metering – any pipe, any liquid, any temperature, any flow-rate

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Transducer Design

• Paired transducers → precision

(typical zero point error < 0.005m/s)

• Temperature compensated → no drift

• No moving parts, factory zeroed, no

drift → no recalibration required

Transducers & Calibration

Flow calibration

• All transducers are calibrated to the transmitter on a calibration loop in the factory.

• Traceable calibration certificate provided for every transducer pair.

• Calibration and transducer information stored on EPROM.

calibration rig

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Dual-µP technology with high-speed multiplexer 1000 Hz instead of 20 to 40 Hz with conventional / older systems

Allows increased signal evaluation - non usable signals are eliminated due to statistical signal evaluation

Stable and precise measurement even in case of disturbances

Measured Signal

wanted Signal

noise

Multiple signal evaluation

Flow Computer Evolution- DSP Signal Evaluation

Single signal evaluation

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Flexim’s Permanent Coupling Foil

Transducer

Pipe

Non-Liquid Coupling Foil – Flexim now employ a dry coupling using a Vitonpad. This means that the transducer can be installed underneath insulationwithout ever needing maintenance – the system is truly maintenance-free.

The transducer must make direct contact with the pipe – any spaces reducesignal strength. Historically (and by others), this is achieved using a silicongel. Unfortunately, this gel slowly evaporates and needs to be re-applied.

Dry Coupling

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• High Accuracy (±1.2% of reading ±0.01m/s)

• High Repeatability (0.15% of reading ±0.01m/s)

• High Turndown (0.01…25m/s)

• Drift Free

• Minimal installation efforts and costs

• No spool-piece – price effective at higher pipe diameters

• Maintenance free with dry coupling foils

• Ideal for retrofit

• No pipe cutting needed for mounting and servicing

• Any liquid, any temperature, any pipe, any flow

• No risk of leakage

• No parts in contact with the medium (ideal for aggressive media)

• No flow restriction - no system pressure loss

• Independent of electrical conductivity, pressure, temperature and viscosity

• No moving parts – no wear and tear

Advantages

Advantages of Clamp-On Ultrasonic Flow Meters

Performance

Commercial appeal

Application benefits

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Thermal Energy Flow

For a closed piping system, a metering device that:

1.Measures:

1. the volume or mass flow of the liquid;

2.The temperature out of the heat

producing/consuming source;

3.The temperature into the heat

producing/consuming source

2.Computes the thermal flow rate

(e.g. kW/hr, BTU)

FLEXIM's thermal flow meter is fully integrated - all measurements and the thermal computation are made by the Flexim flow computer.

Thermal Energy Flow

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Thermal Flow Metering – Flow Computer

Technical Data ADM7407E

Measurable Flow Velocity 0.01 – 25m/s

Repeatability 0.15% of reading ±0.01m/s

Accuracy ±1.2% of reading±0.01m/s

Operating Temperature -20…+60ºC

Housing Material Aluminium, powder coated

Ingress Protection IP65

Power Supply 240V AC or 24V DC

Temperature Inputs 4-wire, ±0.01% of reading ±0.03K

Communication Modbus

Flexim FLUXUS ADM7407E

Thermal Flow Computer

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Thermal Flow Metering – Flow Transducers

Technical Data CDQ2N52

Wave Type Shear Wave

Operating Frequency 4 MHz

Inner Pipe Diameter Range

25…100mm; Extended 10…400mm

Operating Temperature -40…+130ºC (High-temperature available upon request)

Housing Material Stainless Steel

Contact Surface PEEK

Ingress Protection IP65

Pipe Coupling Dry – Viton pad

Length 39mm

Width 22mm

Height 25.5mm

Flexim CDQ2N52 Non-Invasive

Ultrasonic Flow Transducers

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Thermal Flow Metering - Temperature

Technical Data Clamp-On Temperature

Probes

Type Pt100 matched according to DIN 1434-1

Design 4-wire

Accuracy T ±(0.15°C + 2x10-3T [°C]), class A

Accuracy ∆T -≤0.01K(3K <∆T<6K),more corresponding toEN 1434-1

Measuring Range -30…+250°C

Ingress Protection IP66

Length 15mm

Width 15mm

Height 20mm

Flexim Pt100 Clamp-On

Temperature Probes

(insertion type also sourced as required)

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• Device fully integrates flow and temperature measurement to calculate heat-flow.

Eliminates any additional signal conversions which are a large error source for

thermal flow.

• Excellent turn-down – off-peak service is still measured.

• Completely non-intrusive* - ideal for retrofit jobs.

• Maintenance-free – no moving parts, dry coupling, no drift. Transducers can be

installed underneath insulation.

• Cost-effective – a 2-channel clamp-on thermal flow meter measuring both chilled

and hot water is typically <$13,000AUD. Commissioning approximately 3-4 hours.

*If required, insertion temperature probes are easily integrated into flow computer.

Advantages

Advantages of Clamp-On Ultrasonic Thermal Flow Meters

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External Measurement

of Internal Flow

Examples

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Sir Charles Gairdner Hospital – K Block

Flexim ADM7407E Double Energy

Hot Water Pipe:• OD: 32.00mm• WT: 1.20 mm• Material: Copper

Cold Water Pipe:• OD: 64.00mm• WT: 1.20 mm• Material: Copper

Modbus to BMS

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Sir Charles Gairdner Hospital – G Block

Flexim ADM7407E Single Energy

Cold Water Pipe:• OD: 325.3mm• WT: 5.8 mm• Material: Carbon Steel

Modbus to BMS

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Curtin University

Flexim ADM7407E Double Energy

Hot Water Pipe:

• OD: 273.10mm

• WT: 4.10mm

• Material: Carbon Steel

Flow rate over 4-20mA to existing BMS. Modbus module included for future energy flow metering.

Cold Water Pipe:

• OD: 457.00mm

• WT: 9.50mm

• Material: Carbon Steel

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External Measurement

of Internal Flow

Thank You

19 Demin Water

Cooling water

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Water works, DN700

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Glasfiber reinforced and plastic pipes PE, PP, PVC, Glass, GRP, etc.

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Pipes with Liner, DN1000 Steel pipe with concrete lining

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Hydro dam, DN2000

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Large Diameters

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Small Diameters

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High Pressure

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High Pressure EthylenePolimerization Process

Flow-measurement application parameters:

Fluid: Ethylene gas with wax content

Pressure: 1000 to 3500 bar

Temperature: 50 to 100°C

Pipe material: different specific UHDE steel

materials

Pipe size: typically 25 to 38 mm id

Pipewall thickness: typically 25 to 30 mm

Flow velocity: typically 10 to 15 m/s

Other conditions: pulsation/ vibrations

Hazardous (explosive) area

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High Temperature with WaveInjector®

Operating temperature: up to 400 °CNovel fin plate designHigh surface pressure allow for permanent metal foil couplantsLine size 40mm and aboveNo performance penalty for high temperature application

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External Measurement

of Internal Flow

Thank You

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