Series Dh3 Differential Pressure Controller From Dwyer Instruments Inc.

摘要

Dwyer Instruments Inc., Series DH3 Differential Pressure Controller provides a 4-20 mA process output, 2 SPDT relays with adjustable deadbands, and a large, bright backlit LCD display. The DH3 offers simplified programming via a menu key that enables the user to select: security level; set point, or set point and alarm operation; auto or manual alarm reset; English or Metric engineering units; pressure, velocity or flow operation, K-factor for use with various Pitot tubes and flow sensors, circular or rectangular duct size for volumetric flow operation plus many more. The robust Photohelic~R gage style aluminum housing is rated NEMA 4X on the front face when properly installed in a control panel.