Marmonix MFU-6000 Handheld Clamp-On Flowmeter
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MFU-6000 is designed to measure the fluid velocity of liquid flowing within a closed conduit.
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Description
The Marmonix MFU-6000 ultrasonic flow meter is a handheld transit-time instrument with clamp-on transducers for liquids in closed pipes from DN15 to DN6000. It reads velocities up to ±32 m/s with ±1% of reading above 0.2 m/s, logs over 2000 lines of data, exports over RS-232C and runs more than 10 hours on its built-in rechargeable batteries. Browse all Marmonix flow meters, or compare the MFU-6400 portable flowmeter with printer.
Handheld Ultrasonic Flow Meter MFU-6000
MFU-6000 is designed to measure the fluid velocity of liquid flowing within a closed conduit. The transducers are clamp-on type, which will provide benefits of non-destructive operation and easy installation. The flow meter operates by frequently transmitting and receiving a frequency modulated burst of sound (ultrasonic) wave between the two transducers and by measuring The differential time of send and receive of the ultrasonic pulses determines velocity of liquid in the pipe.
The light weight, user friendly operation, high accuracy and outstanding reliability, quick response time, flexibility of usage, data-logger and being PC compatible makes MFU-6000 an ideal device for petrochemical plants, water pipelines, etc.
Marmonix MFU-6000 employs a patent balanced lower voltage multi-pulse igniting circuit which increases the anti-interference ability magnificently so that the flow meter will work properly even in demanding industrial environments such as those with power frequency transverter working nearby.
Handheld Ultrasonic Flow Meter MFU-6000 Features
Main features of the MFU-6000:
- Easy to install and no need to cut off the flow, no pressure loss
- 32K BIT built-in data storage
- LCD displays the instant flow, total flow, flow velocity and working conditions
- Measurement range from DN15~DN6000mm
- 4 flow totalizers (0.5 second totalizing period)
- 100 Picosecond resolution of time measurement
- Buzzer and OCT alarm
- Different flow rate units available
- self-adapting signal receiving circuits to avoid any especial adjustments
- Indicating the flow direction
- Zero point adjustment
- Self-diagnosis function can indicate the current working statues
- Suitable for wide variety of pipe materials and liquids
Handheld Ultrasonic Flow Meter MFU-6000 Specifications:
| Parameter | Values |
| Velocity range | ±32 m/s |
| Accuracy | ±1% of reading at rates>0.2 mps |
| Repeatability | 0.2% |
| Linearity | 0.5% |
| Response Time | 0~999 seconds, user-configurable |
| Pipe Size | DN15~DN6000 |
| Rate Units | Meter, Feet, Cubic Meter, Liter, Cubic Feet, USA Gallon, Imperial Gallon, Oil Barrel, USA Liquid Barrel, Imperial Liquid Barrel, Million USA Gallons. User configurable |
| Totalizer | 7-digit totals for net, positive and negative flow respectively |
| Liquid | Virtually all liquids that can spread sonic (without solid suspensions). Including: Water, Sea water, Oil, Acids, Alcohol, Gasoline, Propane at –54℃, Butane at –0.5℃, Crude oil, Kerosene, etc. |
| Suspension concentration | <10000 ppm, (may contain very small amount of air bubbles) |
| Pipe material | All fine conductors of ultrasonic waves. Including: Iron, Steel, PVC, Carbon steel, Stainless steel, Cast iron, Ductile iron, Copper, Aluminum, Fiberglass, etc. |
| Security | Setup values Modification Lockout. Access code needs for unlocking |
| Display | 4×16 English letters |
| Communication Interface | RS-232C (FUJI extended protocol) |
| Data Logger | Built-in data logger can store over 2000 lines of data |
| Manual Totalizer | 7-digit press-key-to-go totalizer for calibration |
| Housing Material | Flame retardant ABS |
| Working environment (Transmitter) | -20~60℃, 85%RH, IP65 |
| Working environment (Transducers) | -30~160℃, IP65 |
| Power supply | 3 AAA Ni-H built-in batteries. When fully recharged it will last over 10 hours of operation (input 100-240 VAC) |
| Weight | 514g (1.2 lbs) with batteries |
| Dimensions | 200x92x32mm |
Questions about the MFU-6000 ultrasonic flow meter
Do I need to cut the pipe to install the MFU-6000?
No, the MFU-6000 uses clamp-on transducers fitted to the outside of the pipe, so there is no need to cut the pipe or stop the flow, and there is no pressure loss. It works on pipes that carry ultrasound well, including steel, stainless steel, cast and ductile iron, copper, aluminium, PVC and fiberglass.
Which transducers does the MFU-6000 use for each pipe size?
The MFU-6000 datasheet lists S2 transducers for DN15–DN100, M2 for DN50–DN700 and L2 for DN300–DN6000, all rated -30 to 90 ℃, plus high-temperature S2H, M2H and L2H versions up to 160 ℃ and bracket-type versions. The standard package lists M2 transducers, 5 m signal wires, 5 m chains, coupling gel, an RS232 cable, charger and a hard carrying case.
MFU-6000 or MFU-6400: which should I choose?
Choose the MFU-6000 for a light handheld unit (514 g, 200×92×32 mm) that logs data and exports over RS-232C, and the MFU-6400 when you need printouts on site, because its page lists a built-in mini thermal printer. Both cover pipes from DN15 to DN6000.
Case study: spot-checking liquid flow without cutting the pipe
Water pipelines and plant cooling or process lines often need a flow check where no meter is installed and stopping the line is not an option.
A handheld transit-time ultrasonic flow meter clamps its transducers onto the outside of the pipe and times ultrasonic pulses sent with and against the flow. The difference gives liquid velocity, which the meter converts to flow using the pipe data entered by the user.
On a typical survey, the technician mounts the transducers, checks the signal, and logs readings over a period, then transfers the data to a PC. The same instrument can be moved from line to line to verify fixed meters or balance a water network.
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