Vacuum pressure sensor PVC5116

conductivitymedical

The PVC5100 series is a fully calibrated, temperature-compensated vacuum transducer designed for cost-effective OEM integration. It consists of a MEMS thermal conduction sensor (Pirani sensor), measuring electronics, and a microprocessor, packaged in an ultra-compact PCB assembly, and is enclosed in a stainless steel housing with ISO-KF fittings. The sensing element is based on Posifa's proven, second-generation MEMS thermal conduction chip that operates under the principle that the thermal conductivity of gases is proportional to their vacuum pressure. The electronics and microprocessor amplify and digitize the sensor signal, and provide a digital output via an l2C interface. Because the thermal conductivity of a vacuum varies with the ambient temperature, a temperature compensation algorithm is implemented in the microprocessor, taking input from a built-in temperature sensor. To facilitate integration, the PVC5100 includes a connector-terminated wire harness, and supports ISO-KF fittings. FEATURES • Accuracy: 15% reading from 1 mTorr to 200,000 mTorr • Fast response time: 250 ms • Digital l2C • Low power consumption for battery-powered instruments • Temperature compensation • Resistant to contamination APPLICATIONS • Leak detection in any closed system main-tained under primary vacuum pumps, such as in vacuum-insulated panels • Digital vacuum gauges ABSOLUTE MAXIMUM RATINGS • Operating temperature: -25 °C to 85 °C • Storage temperature: -40 °C to 90 °C • Shock: 100 g peak (5 drops, 3 axis) • Overpressure: 27.5 bar