Our DOF6000 serial doppler flow meter is designed for partially filled pipe, open channel, river, stream and etc .

When the certain liquid is measured, if you just record the liquid level and it is hard to get a reliable measurement of liquid flow.

When the flow remains constant , the level may be changable .

In this case, it is essential to measure liquid velocity and depth, then determine the flow measurement .

Lanry DOF6000 serial Ultrasonic Doppler flowmeter is a complete hydrographic data collection system. QSD6537 sensor can measure the liquid flow rate, level and conductivity, if with our DOF6000 serial calcultor, it can not only measure liquid velocity, level, conductivity,temperature, but also measure flow .

QSD6537 sensor has a wide range of application, it measures both forward and reverse flows, and is particularly useful at sites where a stable stage / velocity relationship does not exist. 

Some characteristics of our DOF6000 serial meter as below .

1.  For open channel, partially filled pipe and natural streams, those applications have very complex velocity characteristics.  Turbulence, waves, stream slope, bed and wall unevenness, rocks and debris, all combine to create an unpredictable velocity profile. Our DOF6000 serial meter analyses up to one thousand separate velocity measurements and statistically determines the mean velocity. This approach provides a good “average velocity” even under difficult conditions. However, our QSD6537 sensor is not a current profiler,  it does not record a detailed velocity profile. DOF6000 meter contains a micrologger with 512kb of memory; enough for 250,000 measurements. It will acquire instantaneous, maximum, minimum and averaged readings. QSD6537 sensor is equipped with the SDI-12 communications facility .

2. DOF6000 serial meter can connect to an SDI-12 Data Recorder or it can act as an SDI-12 Data Recorder master to which other SDI-12 instruments can be connected. You will generally mount the QSD6537 sensor on (or near to) the bottom of the stream, pipe or culvert where you are measuring flow, however you can also mount it on the side of larger channels.