URK
page 4
URK K03/0817
5. Operating principle
The Kobold URK model flowmeter/monitor works on the basis of the suspended float principle. It
is used for measuring the flow rates in closed pipe line systems.
The medium flows from below through a glass measuring cone that gets wider on top. Thus, the
float is raised and indicates the respective flow rate on the scale provided on the measuring
cone. To monitor flow rate limits, the URK meters can be optionally furnished with “open
collector“ proximity switches.
By its special design, this model is particularly suitable for applications where only very
small operating pressures are available. Another advantage is offered by the very large
sight glass which optically allows direct flow observation.
6. Mechanical connection
Before Installation:
• Remove all transportation safety locks and ensure that no packing material remains within
the unit.
• Be sure that the maximum allowable operating pressure and temperature is not exceeded
(see Technical data).
• Install the by-pass level indicator at the side of the round containers, ensure the instrument
is under no mechanical stress/tension (install support bracing if necessary).
• Protect the measuring tube from external damage.
• Avoid pressure peaks in the measuring tube, e.g. from sudden surges or stoppage of flow.
• If possible, immediately after making mechanical connections, check whether the
connections are properly sealed with no evidence of leakage.
• Make sure that the connections are in plain.
7. Electrical connection
7.1. Inductive switch (option)
• Make sure that the supply wires are de-energized.
