These liquid-media differential pressure transmitters convert pressure produced between two points in a process into electrical output signals. These output signals control and monitor applications remotely and can be displayed with a compatible monitoring device. These instruments are built with a simplified dual-sensor with fewer moving parts and less internal fluid for better response times than units with manifolds. They are commonly used to monitor flow elements, heat exchangers, filters, coils, and pumps.

These liquid-media differential pressure transmitters have a manifold that regulates the inlet from the process to temporarily close the connections if constant measurement is not required or to facilitate transmitter replacement. They’re designed with a 3-valve manifold that allows operators to bleed air that’s trapped in a system, which protects it against damaging differential overpressure during installation, start-up, or shutdown. These instruments are used for hydronic HVAC piping applications, such as circulations, flow control, heat exchangers, boilers and chillers.

These compact differential pressure transmitters are built with NEMA 4X and IP66-rated enclosures that help protect them from harsh and wet conditions. Also called indicating transmitters, they have a display that allows for immediate readings and are rangeable for quick range changes. They are commonly used to measure the flow of liquids and gases, to check pressurized and nonpressurized tank levels, and are also used to monitor pollution.