ONICON Electromagnetic Flow MeterONICON’s F-3500 insertion electromagnetic flow meter is engineered to excel in demanding water flow measurement applications. With no moving parts, the F-3500 is reliable even in challenging open loop applications. The hand insertable hot tap design provides quick, easy installation, and every meter is individually wet calibrated to N.I.S.T. traceable standards, programmed for the application, and accurate to within 1 percent of rate. Common applications include chilled water, hot water, condenser water, and domestic water.