Dynameters DMTF-Ex Explosion-proof Doppler Flowmeter

Series DMTF-Ex Doppler ultrasonic flow meter is designed to measure the liquid volumetric flow in the closed channel, the pipeline should be filled with liquid, a certain amount of air bubbles or suspended solids in the liquid.

Doppler ultrasonic flowmeter can display flow rate and be configured with collector, flow and 4-20mA, Totalizer Pulse and Relay Alarm output, etc.

Features

*The system can have space configured for pipe sizes ranging from 40 to 4000mm.

*For dirty liquids, air bubbles contain a certain amount or suspended solids.

*0.05 m/s low Excellent low flow velocity measurement capability,

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

*Automatic gain adjustment signal

*No need to shut off pipe flow when installing transducers.

*User-friendly configurations

*4-20mA, collector pulse and relay alarm output

*Accuracy: 2.0% Caliber aperture

Measurement Principle

Doppler ultrasonic flow meter is designed to measure the liquid volumetric flow in the closed channel, the pipeline should be filled with liquid, a certain amount of air bubbles or suspended solids in the liquid.

Transducers are available in on-clamp or hot-hit probe types, so the user does not need to shut off the pipe flow when you install clamp-on transducers.

The flowmeter works by transmitting an ultrasonic sound to its transmitting transducer, the sound will be reflected by the useful sonic reflector suspended in the liquid and recorded by the receiving transducer. If sonic reflectors are moving within the sound transmission path, the sound waves will be reflected at a frequency shifted from the transmitted frequency (Doppler frequency). The frequency shift will directly depend on the velocity of the moving particle or bubble. This shift in frequency is interpreted by the tool and converted to various user defined units of measurement.

There must be some particles large enough to cause longitudinal reflection - particles larger than 100 microns.

When you load the transducers, the loading location should be enough straight pipe length up and down. In general, the upper head needs 10D, and D is the diameter of the pipe, the lower head needs a straight pipe length of 5D.

Answers:

For all explosion-proof occasion in petrochemical plant and oil field, oily wastewater discharge, wastewater, sewage, oil drilling slurry, or flow monitoring and measurement.

When installing the insert converter, there is no need to turn off the pipe flow when you install converters, online installation Hot-hit and disassembled.

Features

* Non-invasive explosion-proof clamp-splice and transducers
* Bidirectional flow measurement
* Possible to measure positive, negative and net total flow
* Available in Standard type and Explosion Proof grade
* Measurable pipe sizes DN50-4500
* Measurable temperature range: -40℃~250℃
* Easy to use and fast installation

Apps

* petrochemical
* For industrial process control system, detection
* Building automation control
* Hydraulic and pneumatic control
* Plant operation control
* Environmental Protection
* Chemicals, including alcohol, acid, etc.
* HVAC, energy metering system
* Beverage, food and drug processors