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MAXIFLO® MU series measures flow anddoes much more

For the measurement, two ultrasonic pulses are sent through the medium, one in flow direction, and the other against it. The transducers are alternatively working as emitter and receiver.

The transit time of the ultrasonic signal propagating in flow direction is shorter than the transit time of the signal propagating against flow direction. The transit-time difference Δt is measured and allows the determination of the average flow velocity on the propagation path of the ultrasonic signals. A profile correction is performed to obtain the average flow velocity on the cross-section of the pipe, which is proportional to the volume flow.

3

Transit-Time Technology The flowmeter technology employed by our MU series is called “Transit-time” ultrasonic technology. It is also called “time-of-flight” or “time-difference” ultrasonic technology. In this technology, one of the keys to the precision performance is its transmission and reception technology. Transit-time provides an innovative direct ultrasonic transmission technique that ensures reliable and accurate signal detection for a wide range of processes.

Working Principle of Transit-Time Technology

Non-Invasive, Clamp-on Transducers Since ultrasounds propagate in solids, the transducers can be mounted onto the pipe. The measurement is therefore non-invasive, and no cutting of pipes is necessary for the installation of the transducers. Because with just 3 sets of transducers, pipes ranging from 15mm to 6000mm can be covered, the ownership cost doesn’t increase as the pipe size increases, which is the decisive cost saving factor as compared to traditional flowmeters. Single-Board Solution – A Decisive Cost Saver All the main elements such as power supply, transducer, computation, communication, etc. are integrated into one single board. This allows MU series much more accessible to users that are sensitive about purchase and maintenance budgets.

4

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5

Versatility in Function You have the flowmeter but that’s not all! MU-WA has standard RS-485 interface. Using this interface, multiple meters at remote sites can be monitored or controlled almost at real time. Therefore the user can have the real time awareness of all of his meters out in the field at the comfort of his desk. Using the 2 Pt-100Ω RTD inputs as temperature inputs, the meter has the function as an energy meter. Using the output interfaces such as 4-20mA, pulse, relay, batch control, etc., process equipments such as pumps or valves can be controlled automatically.

Using the 3 analog inputs and RS-485 interface, the meter can function as an independent station where it can collect other information such as ambient temperature, humidity, pressure, wind speed, level, etc. and forward it to a central monitoring station through RS-485 communication. The meter circuit is composed of 1 main board and 1 display and keypad board and therefore has a roomy space inside in which the user can install accessories such as surge compressor, external data logger, pull-up resistors for pulse output, etc.

6

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7

8

Energy (Heat) Meter Solution Full-function ultrasonic energy metering The wall mount type comes with energy (heat) meter function as built-in function. With the addition of 2 Pt-100Ω RTD sensors, you have a powerful energy (heat) meter and avoid the performance and reliability problems that afflict conventional intrusive thermal energy flowmeters. Almost all the engineering units for energy can be selected. And not only heat generation but also heat loss is calculated. Its high accuracy, wide bi-directional rangeability, and high sensitivity prevent the loss of energy cost billing now suffered when flow rates fall below the operating range of intrusive meters. Absolutely no pressure drop means lowest operating costs.

Installation is quick and easy; shut down is never needed for installation, maintenance, or calibration check, saving additional cost and inconvenience. Non-intrusive, clamp-on “no-wear” flow sensing delivers intrinsic high reliability. Ideal for a wide range of district energy heating and cooling applications and for power plants. And with the addition of Ethernet based remote monitoring and controlling system, the energy flow can be monitored at real time anywhere from a web-based applications. And the data collected at real time can be reported to a remote place by wireless using cellular technology.

Pt-100Ω RTD Temperature Transmitter

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Flow Computers Wall Mount Panel Mount Handheld Portable

Model Denominator MU-WA MU-PA MU-HA MU-PO

Full functionality using all types of sensors and the widest selection of output and input interfaces

Housed in panel to work as part of a whole system for monitoring and controlling a process

Light-weight and the most advanced portable version with internal data logging capability

Legacy portable type with dot printer capability

Pipes Measured Steel, stainless, cast iron, plastics, concrete or any pipes with known sound velocity property

Pipe Sizes 15 ~ 6000 mm

Fluid Water, sea water and other clean liquids without high level of suspended particles

Fluid Turbidity Smaller than 20,000ppm (mg/l) with a low level of air bubble content

Flow Velocity -30 ~ +30 m/s

Accuracy ±1.0% of Reading

Repeatability ±0.2% ~ 0.5%

Linearity 0.5%

Ambient Temp. -20 ~ +70℃

Ambient Humidity 85% RH Max.

IP Rating IP-66 IP-65 IP-65 IP-65

Power DC 24V

AC 110 ~ 250V

DC 24V Internal Battery

AC 110 ~ 250V charger

Internal Battery

AC 110 ~ 250V charger

Output 4-20 mA

Pulse

Batch Control Relay

RS-485

4-20 mA

Pulse

Batch Control Relay

RS-485

RS-232 RS-485

Optionally

4-20 mA, Pulse

Batch Control Relay

External Inputs 2 x RTD Inputs

3 x 4-20 mA Inputs

2 x RTD Inputs

3 x 4-20 mA Inputs

Optionally

2 x RTD Inputs

Data Logger Add-in SD Memory Card Module

Add-in SD Memory Card Module

Built-in Data Logger Add-in SD Memory Card Module

Max. Transducer Cable Length

400 m

Dimension 251 x 92 x 80 mm 90 x 90 x 34 mm 200 x 85 x 30 mm 258 x 180 x 10 0mm

Weight 5.5 kgs 5 kgs 9 kgs including transit case

9 kgs including transit case

Transducers Clamp-on Insertion Full-Bore

Pipe Ranges S 15~100 mm > 80 mm π Shape 10~40 mm

M 50~700 mm H Shape > 50 mm

L 300~6000 mm

Operating Temperature

-20 ~ +160℃ -20 ~ +130℃ -20 ~ +120℃

IP Rating IP 65** IP-65** IP 65**

Cable Length 5 m by standard (optionally, can be up to 400 m)

** Optionally IP68

Temperature Sensors Sensor Type PT-100 ohm RTD, 3-wire, film-type

Accuracy 0.1℃

Accuracy of Temperature Sensing Circuit 0.5%

11

Model Selection Guide MU-##-##-## Code

Flow Computer

Wall Mount WA

Panel Mount PA

Portable PO

Handheld HA

Transducer Clamp-On Small (for 15~100mm pipes) CS

Medium (for 50~700mm pipes) CM

Large (for 300~6000mm pipes) CL

Insertion 45-degree Tip ID

Flat Tip IF

Full Bore FDN

Ultra-Clean Micro-Flow Sensor

3 mm U3

6 mm U6

Power 100~250 VAC (Wall Mount, Portable, Handheld)

P1

24 VDC (Wall Mount, Panel Mount)

P2

Options Data Logger (SD Memory Card Module) SD

Ultrasonic Thickness Gauge UT

Explosion Proof Enclosure EX

High-Temperature Sensor HT

Special Cable Length (Standard 5m)

C___

RS-232 Converter RS232

Hot-Tapping Drill Tool DR

Example: MU-WA-CM-P2-EX: Explosion-proof wall mount ultrasonic flowmeter with M size clamp-on sensor powered by DC power.

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© S

eil Ente

rprise

co.

2008

MAXIFLOTM is a registered trademark of Seil Enterprise Co.

Seil Enterprise Co. Seoul Korea www.maxiflo.co.kr

The information contained in this catalog contains merely general descriptions or characteristics of performance which in case of actual use do not always apply as described or which may change as a result of further development of the products. An obligation to provide the respective characteristics shall only exist if expressly agreed in terms of the contract. All product designations may be trademarks or product names of Seil Enterprise Co. whose use by third parties for their own purposes could violate the rights of the owners.

We are here for you For further information, visit us at www.maxiflo.co.kr