Qualified Personnel
The DU06 devices may only be installed by trained, qualified personnel who are able to
mount the devices correctly. Qualified personnel are persons, who are familiar with
assembling, installation, placing in service and operating these devices and who are
suitably trained and qualified.
Inward Monitoring
Please check directly after delivery the device for any transport damages and deficiencies.
Additional with reference to the accompanying delivery note the number of parts must be
checked.
Claims for replacement or goods which relate to transport damage can only be considered
valid if the delivery company is notified without delay.
Functional description
The DU06 detects flow and accumulated volume in pipe systems due to ultrasonic delay
time mode with a time resolution of 45 pico seconds.
Different connection versions are available:
-
½“ version made of brass or stainless steel, flow max. 80 l/min
-
1” version made of stainless steel, flow max. 180 l/min
-
2” version made of stainless steel, flow max. 1000 l/min
All versions come with external thread connection for mounting in pipe systems
Medium: Water, oil, emulsion etc. with low gas rate (bubbles)
Installation location
In order to avoid turbulence and cavitation, the largest possible distance to valves, pipe
bends, fittings and other flow disturbing elements must be maintained. In particular valves
can disturb the flow and lead to malfunction. Therefore, they must be installed in the flow
direction after the meter. Thus, the resulting interference is only generated after the DU06.
To avoid pressure surges, it is important that the valves are opened as slowly as possible.
In order to maintain proper functioning of the units, it is recommended to provide a straight
calming section of approx. 10 d on the inlet side and 5 d on the outlet side. (d = tube
inside diameter)
DU06 Instruction manual 09/2019
page 3
