Diaphragm-Sealed Differential Pressure/Pressure Transmitter

Product Overview:
Sealed diaphragms prevent process media from directly entering the pressure sensing components of differential pressure/pressure transmitters. They connect to the transmitter via fluid-filled capillary tubes. Diaphragm-sealed differential pressure transmitters and diaphragm-sealed pressure transmitters are used to measure flow, level, density, and pressure of liquids, gases, or steam.

Diaphragm-sealed differential pressure/pressure transmitters are used to measure the pressure, liquid level, or density of liquids, gases, or steam. Employing single-crystal silicon differential pressure sensing elements or fully sealed capacitors ensures high measurement accuracy while guaranteeing excellent stability and reliability. The pressure is transmitted through capillary tubes filled with silicone oil (or other fluids) to the transmitter body. Within the transmitter body, the delta chamber and amplification circuit board convert the pressure or differential pressure into a 4-20mA DC signal output.
This product supports HART communication protocol, enabling interaction with control systems or handheld communicators for parameter setting, monitoring, testing, and configuration. The HART protocol employs industrial-standard technology, superimposing digital signals onto the 4-20mA signal for communication without interfering with the 4-20mA signal.

Product Features：
Compact size and lightweight. Its minimal components, simple structure, and integrated differential pressure/displacement signal conversion significantly reduce volume and weight.
Fast response and high accuracy. Absence of mechanical transmission and friction, combined with relatively large signal value changes, facilitates high precision.
High reliability. Minimal moving parts, fully sealed welded solid-state measurement components, rigorously aged electronic components, and specialized connectors substantially enhance transmitter reliability.
Local zero adjustment capability. Convenient on-site zero and span calibration. Wide adjustable range with positive/negative migration structure. Adjustable range exceeds 10:1.
Excellent overload performance with unidirectional overload capacity up to 16MPa. Internal sensor incorporates a simple, reliable concave arc overload protection structure.
Features an adjustable damping device suitable for pulsating fluid measurement.
Transmitter employs circuits compliant with explosion-proof and intrinsically safe standards, with circuit output below 30mA.
Features an LCD display for local readout, enabling convenient on-site readings.
Employs a fully fusion-welded, rigidly sealed filling system to eliminate oil leakage.

Suitable Applications：
High-temperature viscous media
Crystallizable media
Sedimentary media containing solid particles or suspended solids
Highly corrosive or toxic media
Various production conditions in petroleum, chemical, steel, refining, food, beverage, and pharmaceutical industries.

Technical Parameters：

Measurement Range: