The DMTFH handhold Clamp-on Ultrasonic Flowmeter is one of the most powerful flowmeters available for liquid measurement .The utilization of our proprietary ultrasonic signal processing, transit-time measurement and signal quality tracking technologies allows the flowmeter to measure liquid flow rate from outside of a pipe reliably and accurately.
The DMTFH flowmeter is carefully designed so that it is very compact and easy to use. A user can use hand to hold as well as to operate the flowmeter main unit .The user-interface is self-explanatory and very easy to follow. Besides, the unique clamp-on fixture design makes the installation very simple and no special skills or tools required .Due to the non-intrusive nature of the clamp-on technique ,there is no pressure drop ,no moving parts, no leaks and no contamination.

Features:

· Cost effective and versatile.
· High accuracy, better than 1.0% read.
· Handhold design for main unit, light weight(1.21bs/538g for the
    handset ). Compact enclosure. Portable case for all accessories.
· Wide flow measurement range, from 0.03 to 105ft/s
    (0.01m/s ~32 m/s).
· Velocity, volumetric and totalized flow display.
· Bi-directional. Totalizer for net , positive and negative flow display.
· Wide pipe size range, from 3/ 4" to 240" (DN 20~6,000mm).
· Suitable for all commonly used pipe materials.
· Rechargeable battery for 16 hours of operation.
· Built-in data logger.
· Self-explanatory user interface, easy to operate.
· PC software for data download and real-time data display.
· Signal quality tracking and self-adjusting capabilities automatically
    match transducer to pipe material.
· Options:( Data Logger: 512M (200,000 event), 16-bit integral DB-9 RS232C Connection can be removed and installed without disconnecting system power.)
· Options:(Hart&ModBus Protocol Module.)
· Ideal for both clean and opaque liquid flow, in fact, most any liquid
    containing less than 5% total suspended solids (TSS) or aeration.

 

Applications:

The DMTFH flowmeter is ideal for flow surveys and closed pipe applications where non-invasive measurement of liquids is required .Benefited from our advanced digital signal processing technology, the handhold flowmeter works reliably in both clean and opaque liquid flow. Examples of applications include:
· Water, including hot water, chilled water, city water, sea water, etc.
· Sewage and drainage water with small particle quantity.
· Oil, including crude oil, lubricating oil, diesel oil ,fuel oil, etc.
· Chemicals, including alcohol, acids, etc.
· Solvents.
· Beverage and food processors.
· HVAC hot and cool water, water /glycol solutions.
· Water and waste treatment.
· Power plants (nuclear power plants, thermal & hydropower plants), heat energy boiler feed water.
· Energy consumption supervision and water conservation management.
· Metallurgy and miming applications (e.g., acid recovery).
· Marine operation and maintenance.
· Pulp and paper.
· Pipeline leak detection, inspection, tracking and collection.
· Energy measurement and balancing.
· Network monitoring.

Specifications:

Power Supply	3 AAA Ni-H built-in batteries .When fully recharged, it will last over 10 hours of operation .100V-240VAC for the charger
Velocity	0.03~105ft/s(0.01~32m/s),bi-directional
Display	4×16 letters
Units	English (U.S.)or metric
Totalizer	7-digit totals for net ,positive and negative flow respectively
Accuracy	Normally better than 1.0% for velocity above 0.6ft/s (0.2m/s).
Repeatability	0.2%
Response Time	0-999 seconds ,user-configurable
Linearity	Better than 1%
Pipe Size	1/2"~240" (DN15mm~DN6,000mm)
Pipe Material	All metals , most plastics , concrete ,lined pipe
Liquid Types	Virtually all liquids (full pipe) containing less than 5% total suspended solids (TSS) or aeration.
Liquid Temp	-40 to 180H [-40 to 82]; Opt -40 to 300H [-40 to 150]
Digital Interface	RS-232C,Hart&ModBus Protocol Module(optional)
Data Logging	512M (200,000 event), 16-bit integral DB-9 RS232C Connection can be removed and installed without disconnecting system power
Transducers	Model M1 for standard ,other 3 models for optional
Transducers Cord	Standard 215" (25m), Contact the factory for longer cable
Data Logger	Built Cin data logger can store over 2,000 lines of data
Housing Material	Aluminum alloy protective case .Suitable for normal and harsh environment
Case Size	7.9" 3.6" 1.3" (200mm92mmm32mm)
Handset Weight	1.2lbs(538g) with batteries