New PVC5800 Series Fully Calibrated MEMS Pirani Vacuum Transducer
Posifa Technologies announces its new PVC5800 series fully calibrated MEMS Pirani vacuum transducer. Designed for simple and cost-effective OEM integration, the device consists of a surface-mount MEMS Pirani sensor and microcontroller-based measuring electronics — all packaged in an ultra-compact PCB assembly featuring a connector-terminated wire harness and enclosed in a stainless steel housing with ISO-KF fittings.
The sensor element of the PVC5800 series MEMS Pirani vacuum transducer is based on Posifa’s second-generation MEMS thermal conduction chip, which operates under the principle that the thermal conductivity of gas is proportional to its vacuum pressure. The transducer’s microcontroller-based measuring electronics amplify and digitize the senor’s signal, providing output via an I²C interface. To compensate for variations in thermal conductivity due to changes in ambient temperature, the device features a temperature-compensation algorithm, which takes its input from a built-in temperature sensor.
- Range: 1 mTorr to 760,000 mTorr (0.013 Pa to 101 kPa)
- Accuracy: 15% reading from 15 mTorr to 10,000 mTorr, and 15% from 10,000 mTorr to ATM
- Fast response time: 250 ms
- Digital I²C interface
- Low power consumption for battery-powered instruments
- Temperature compensation
- Resistant to contamination
- Digital vacuum gauges
- Leak detection in closed systems maintained under primary vacuum pumps, such as vacuum-insulated panels
Please contact Precision Measurement Technologies for technical support, sample requests, pricing and ordering information: call 727-532-6144