portable clamp-on ultrasonic flow meter for water waste and sewage flow transducers

Short Description:

Series DF6100-EH Doppler Handheld Ultrasonic Flow Meter is designed to measure volumetric flow of within closed conduit, the pipe line must be full of liquids, and there must be a certain amount of air bubbles or suspended solids in liquid.

The Doppler ultrasonic flow meter can display flow rate and flow totalizer, etc., and is configured with 4-20mA, OCT outputs.

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The Doppler ultrasonic flow meter can display flow rate and flow totalizer, etc., and is configured with 4-20mA, OCT outputs.

The Doppler ultrasonic flow meter is designed to measure volumetric flow of liquid within closed conduit, the pipe line must be filled full of liquids, there must be a certain amount of air bubbles or suspended solids in liquid.Transducers are clamp-on or hot-tapped probe types, user don’t need to shut down the pipe flow when install the clamp-on transducers. The flow meter operates by transmitting an ultrasonic sound from its transmitting transducer, the sound will be reflected by useful sonic reflectors suspended within the liquid and recorded by the receiving transducer. If the sonic reflectors are moving within the sound transmission path, sound waves will be reflected at a frequency shifted (Doppler frequency) from the transmitted frequency. The shift in frequency will be directly related to the speed of the moving particle or bubble. This shift in frequency is interpreted by the instrument and converted to various user defined measuring units.

There must be some particles large enough to cause longitudinal reflection – particles larger than 100 micron.When install the transducers, the installation location must have enough straight pipe length upstream and downstream. Commonly, the upstream needs 10D and downstream needs 5D straight pipe length, where D is pipe diameter.

Applications:raw sewage / domestic water/waste water/chemical indystry/drainage/sanitary water/dirty liquids/ground water/slurry/mining plants/activated sludge/paper slurry and so on.

Measure : The flow of liquids (Total flow & flow totalizer )

One standard set of product includes:

Handheld case, handheld transmitter, standard transducers, couplant, stainless steel belt, charger, 4-20mA output cable terminals, etc.

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NOTES FOR APPLICATION

When installing transducers, it need enough straight pipe;

When straight pipe is not enough, by setting menu SERVICE, the flowmeter will still get high accuracy, and obtain a more accurate reading. more details, please see 4.3.16 SERVICE mode;

The measured liquid must contain a certain amount of air bubbles or suspended solids. When the liquid contains air bubbles too much or too big, the bubbles occupy a certain volume, and then lead

to larger flowmeter reading. In this case, it needs to recalibrate the flowmeter.

When installing clamp-on transducers, the pipe material should have a good acoustical conductivity;

When the transducer need be installed underground, recommend the insertion type.

Features

It is suitable for pipe sizes ranging from 40 to 4000mm

For dirty liquids, a certain amount of air bubbles or suspended solids shall be contained

Excellent low flow rate measurement ability, low to 0.05m/s

A wide range of flow measurement, high flow rate can reach 12m/s

High-temperature transducer is suitable to liquids of -35℃ ~ 200℃

Do not need to shut down the pipe flow when installing the transducers

User-friendly configuration

4-20mA, OCT outputs

Accuracy: 2.0% Calibrated span

Rechargeable battery can work up to 14 hours

Specificaitons

Transmitter:

Measurement principle	Doppler ultrasonic
Resolution	0.25mm/s
Repeatability	0.5% of reading
Accuracy	0.5% -- 2.0% F.S.
Response time	2-60s for optional
Flow Velocity Range	0.05- 12 m/s
Liquid Types Supported	Liquids containing 100ppm of reflectors and at least 20% of the reflectors are larger than 100 micron.
Power Supply	AC: 85-265V Up to 14 hours with fully charged internal batteries
Enclosure type	Handheld
Degree of protection	IP65 according to EN60529
Operating temperature	-20℃ to +60℃
Housing material	ABS
Measurement Channels	1
Display	2 line × 8 characters LCD, 8-digit rate or 8-digit total (resettable)
Units	User Configured (English and Metric)
Rate	Rate and Velocity Display
Totalized	gallons, ft³, barrels, lbs, liters, m³,kg
Communication	4-20mA OCT output
keypad	6pcs buttons
Size	Transmitter:237X125X42mm case:410X320X80mm
Weight	0.6kg

Transducer:

Transducers Type	Clamp-on
Degree of protection	IP65. IP67 or IP68 according to EN60529
Suited Liquid Temperature	Std. Temp.: -35℃~85℃ for short periods up to 120℃
Suited Liquid Temperature	High Temp.: -35℃~200℃ for short periods up to 250℃
Pipe diameter range	40-4000 mm
Transducer Size	60(h)34(w)32(d)mm
Material of transducer	Aluminum for standard temp. sensor,and peek for high temp. sensor
Cable Length	Std: 5m