Differential Pressure Transmitter

Product Description

A Differential Pressure Transmitter measures the pressure difference between two ports high-pressure (HP) and low-pressure (LP) and converts this pressure differential into a standardized electrical signal (commonly 4-20 mA/0-10V or digital output) for monitoring and control systems such as PLCs, DCS, or SCADA.

Specifications:

Measurement Range: Varies from inches of water column (inHO) to thousands of psi or bar

Output Signal: 4-20 mA, HART, Foundation Fieldbus, Profibus, Modbus, etc.

Accuracy: Typically 0.05% to 0.25% of span

Process Connection: Flanged, threaded, or manifold-mounted

Materials: Stainless steel, Hastelloy, etc., depending on media compatibility

Applications:

Flow measurement (especially with primary elements like orifice plates, venturis, or pitot tubes)

Tank level measurement (especially pressurized or sealed tanks)

Filter monitoring (detecting clogging based on pressure drop)

Pump performance monitoring