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What is it?

The Cerabar PMP71B is a digital pressure transmitter with a welded metal diaphragm, designed for reliable and precise pressure measurement in industrial processes. The sensor is suitable for both liquids and gases and can be easily deployed in industries such as chemical processing, oil and gas, and food production. With advanced features like Heartbeat Technology and Bluetooth connectivity, the PMP71B offers continuous self-diagnostics and easy remote maintenance. The transmitter is resistant to high temperatures, pressure spikes, and aggressive media, and meets strict safety standards (SIL2/SIL3). This makes the Cerabar PMP71B particularly well-suited for applications where process reliability and safety are essential.

How does it work?

The Cerabar PMP71B measures pressure using a piezoresistive or capacitive sensor element located behind a robust, welded metal diaphragm. When the process pressure changes, the diaphragm deforms, causing a change in voltage in the sensor element—this is converted into a precise digital measurement signal. The built-in Heartbeat Technology continuously monitors the sensor’s condition and signal quality without interrupting the measurement process. This allows early detection of wear, incorrect installation, or contamination. Through the integrated Bluetooth interface, the transmitter can be configured, read, or tested wirelessly using a smartphone or tablet. This simplifies maintenance and inspection, especially in hard-to-reach or hazardous locations.

What problems does it solve?

Accurate pressure measurement and monitoring are crucial in industrial processes to ensure safety, efficiency, and product quality. Traditional pressure transmitters often require regular calibration, manual inspection, and wired access, leading to higher maintenance costs and a greater risk of failure. The Cerabar PMP71B provides a reliable and low-maintenance solution. Thanks to self-diagnostics via Heartbeat Technology, anomalies are detected early, preventing unexpected downtime. Bluetooth functionality enables safe and fast access without needing to open the installation. In addition, the PMP71B is suitable for safety-critical environments where failure could lead to hazardous situations. In short, this pressure transmitter enhances process reliability while reducing the maintenance burden.