Magnetic and vortex meters need a completely full pipe with water touching the whole cross-section. With air above the waterline in an open channel or partially filled pipe, there is nothing for them to measure — that is exactly the gap the DOF6000 fills.

No. The DOF6000 sits one submerged sensor directly in the flow and measures velocity and depth. You skip the concrete works, the long upstream straight reach, and the regular desilting that a flume or weir requires.

No. The sensor mounts on the invert or a hoop bracket through an access point. There is no pipe cutting and no process interruption, which is why it is so popular for retrofitting existing sewers and culverts.

Doppler flow needs suspended particles or bubbles to bounce the sound off. In perfectly clean water there is no reflector, so the signal returns nothing. For clean liquids, a transit-time ultrasonic meter is the right choice.

Partially filled pipes from DN150 up to DN6000, and open channels wider than 200 mm. Irregular, natural channel shapes are traced with up to 20 coordinate points instead of being forced into a rectangle.

Velocity accuracy is ±1% of reading over 0.02 mm/s – 12 m/s. The meter ships factory-calibrated; on site you mainly enter the real channel shape and invert offset. A simple comparison run under known flow is enough verification.

Through RS485 Modbus (up to 500 m), SDI-12 (up to 50 m), 4–20 mA, pulse, or GPRS. A 16 GB on-board logger stores readings even when communications drop, so you never lose data.

Go wall-mounted for a permanent monitoring or compliance station. Choose the portable case unit for surveys, temporary checks, or moving between sites — it runs about 50 hours on its rechargeable battery.

Yes — that is its home ground. The IP68 epoxy-sealed body has no moving parts, so solids do not wear it. For very greasy sewage, just wipe the face occasionally; the dual pressure + ultrasonic depth reading also flags a blocked ultrasonic face.