Natural gas valve assembly with Endress+Hauser Proline Prowirl D 200 vortex flowmeter and Cerabar PMC21 pressure transmitter sensor

The Endress+Hauser Cerabar PMC21 is a compact, cost-effective pressure transmitter designed for basic industrial applications requiring reliable measurement of pressure, level, and volume. Despite its economical pricing, the PMC21 incorporates Endress+Hauser's engineering excellence, delivering robust performance in less complex processes. It is ideal for utilities, water treatment, HVAC, and general industrial applications where simplicity, durability, and value are prioritized.

The Cerabar PMC21 utilizes a piezoresistive sensor with a stainless steel diaphragm, ensuring accurate and stable measurements for gauge and absolute pressure ranges from 0.1 to 400 bar. Its compact, lightweight design features an IP65-protected aluminum housing, making it suitable for installations with space constraints or moderate environmental challenges. The device includes a fixed, non-rotatable LCD display for clear visualization of pressure values, unit indicators, and basic diagnostic information. While it lacks advanced diagnostic features like Heartbeat Technology, the PMC21 compensates with straightforward operation and ease of use. It supports 4–20 mA HART communication for seamless integration into existing control systems, allowing for basic configuration and monitoring via HART-compatible tools.

The PMC21 offers a standard accuracy of ±0.5% of the calibrated span, providing sufficient precision for non-critical applications. Its long-term stability reduces the need for frequent recalibration, lowering maintenance costs. The transmitter is designed with user-friendly pushbuttons for local configuration, enabling quick setup without additional tools. It also features zero-point adjustment and damping settings to optimize performance in dynamic processes. Though simpler than higher-end models, the PMC21 maintains Endress+Hauser's commitment to quality, with materials and construction resistant to common industrial stressors like vibration, humidity, and mild corrosive environments.

The Cerabar PMC21 is widely used in applications where advanced diagnostics are unnecessary but reliability remains critical. In water and wastewater treatment, it monitors pump pressures, filter levels, and tank inventories. In HVAC systems, it ensures efficient operation of heating, cooling, and ventilation networks by measuring hydraulic pressures. General manufacturing and utilities rely on the PMC21 for compressed air systems, hydraulic units, and storage tank level monitoring. Its affordability and simplicity also make it suitable for educational facilities and small-scale industrial plants.

The Endress+Hauser Cerabar PMC21 stands as a practical, economical solution for basic pressure and level measurement needs. Its straightforward design, combined with Endress+Hauser's reliability, ensures longevity and consistent performance in non-hazardous, less complex environments. By offering essential functionality at a competitive price point, the PMC21 helps users achieve operational efficiency without unnecessary complexity or cost. While it lacks the advanced features of its higher-end counterparts, it remains a trusted tool for applications where simplicity and value are paramount.

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