RRH Flow Transmitter

Flow Transmitter RRH :

• Uncomplicated measurement of flow rates
• Metal housing with Hall sensor
• Working pressure up to 100 bar
• Long working life thanks to high quality ceramic axis and special plastic bearing
• Run-in and run-out sections are not necessary.
• Modular construction with various connection systems
• Plug-in and rotatable connections
• Output signal PNP or NPN
• Intrinsically safe behaviour
• Optionally, non-return valve, filter, constant flow rate device in the connections.

Characteristics : The flow meter consists of a spinner which is rotated by the flowing medium. The rotor's rotational speed is proportional to the flow volume per unit time. The rotor is fitted with magnets. A Hall sensor records the rotational speed, which is proportional to the flow rate.

Wiring : Air bubbles affect the measurement results. For filling processes, the valve should be installed behind the sensor. A running up time of approx. 0.5 seconds and a running down time of approx. 3 seconds should be noted.

Handling and operation :
Installation
The Rototron device is installed in the pipework with the aid of the rotatable adapter pieces. If necessary, the adapters can be removed from the body of the housing after the stainless steel clips have been removed from the housing. Before reinstalling, it should be ensured that both the adapter with the O-ring and the sealing surface in the body are clean and undamaged. The adapters should be fitted carefully in the housing (it is best to turn them), so that the O-ring is not damaged. With this flow sensor, there is no need for run-in and run-out sections. However, it should be ensured that the flow sensor is at all times filled with medium. Any preferred installation position is possible, but the best possible venting position should be chosen (rotor axis horizontal, flow horizontal or from bottom to top).

Options :

• Transparent cover DN 10
• Air or gas model

Accessories :

• Cable/round plug connector (KB...) see additional information “Accessories”
• Evaluation electronics OMNI-TA
• Mechanical connection pieces with non-return valve, filter, constant flow device or customer-specific requirements available on request