Dwyer Series 645 Wet/Wet Differential Pressure Transmitters 645-0,
are designe for use with compatible gases and liquids which can applie to both the pressure and
reference ports. Quick response capacitance sensor delivers a 4-20 mA output signal
proportional to differential pressure with ±.25% accuracy. The Series 645 transmitters
are ideal for process control, filter condition monitoring, refrigeration equipment,
pump speed control, HVAC equipment, and liquid level measurement. For ease of
installation and maintenance, order optional 3-valve manifold assembly. Bleed ports
allow for total elimination of air in the line and pressure cavities.

