Standard 500 Series metering flow switches are calibrated with water at approximately 25°C \/ 77°F. The use of fluids other than water may affect the accuracy of measurement due to differences in viscosity. Proteus’ world-class calibration capability allows us to deliver instruments with specialized temperature- and fluid-specific calibration.","500 Series Metering Flow Switches > Flow ranges from 0.8 to 17 LPM \/ 0.2 to 4.5 GPM > Liquid temperatures from -40 to 140°C \/ -40 to 284°F > Pressure to 1723 kPa \/ 250 psi > Calibrated 0–5 VDC output > Relay trip point – 16 preset settings > Compact design > Customization available for OEMs > 5-year warranty