Hedland, Racine, WI, offers the MR flow transmitter that combines DSP with a piston-type variable area flowmeter. The solid-state device electronically senses movement of the magnetic piston assembly. Transmitters are supplied precalibrated from the factory but can also be configured by the user. Calibration inputs are available for specific gravity for all fluids; viscosity for petroleum-based fluids; and specific gravity, pressure, and temperature for pneumatic systems. The device provides digital flow rate and total flow indication and proportional 0–5 VDC, 0–10 VDC, and 4–20 mA current loop outputs.
Flow Transmitter from Hedland