POLARIS® ELECTROMAGNETIC FLOW METER

POLARIS® ELECTROMAGNETIC FLOW METER


Polaris® is an electromagnetic flow meter that is capable of measuring liquids with a conductivity as low as 5 µS/cm in closed pipes. It is an accurate and repeatable flow meter that is suitable for a variety of water based and sludge flow applications. The Polaris transmitter is backlit and rotatable with the capability of measuring forward and reverse flow rates as well as total volume. HART® capability allows the use of PACTware™ for configuration and diagnostics. The sensor can be flanged or wafer style and is available with an assortment of standard liners and electrode materials.

Operating Principle


The function of an electromagnetic flow meter is based on Faraday’s law of induction. The sensor consists of a non-magnetic and non-conductive tube with two embedded measuring electrodes. To create an alternating magnetic field, two coils are fitted onto the tube in parallel with the plane defined by the active parts of the measuring electrodes. If a conductive liquid flows across the magnetic field, a voltage will appear on the measuring electrodes proportional to the flow velocity and the conductor length.

Applications


- Water based liquids and sludge flows

Features


- 4-20 mA, pulse and alarm outputs
- Liquid conductivity down to 5 µS/cm
- Forward and reverse flow indication
- HART with PACTware

Options


- Integral or remote transmitter
- Multiple liner and electrode materials
- Flanged or wafer style sensors
- Grounding rings

Approvals


ELV=EMC/Low Voltage

Literature:


+ Product Catalog
+ Instruction & Operating Manual