New PVC4100 Series Fully Calibrated MEMS Pirani Vacuum Transducer
Posifa Technologies announces its new PVC4100 series fully calibrated MEMS Pirani vacuum transducer. Designed for 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.
The sensor element of the PVC4100 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 sensor’s signal, providing output via an I²C interface. To compensate for variations in thermal conductivity due to changes in ambient temperature, the PVC4100 features a temperature compensation algorithm, which takes its input from a built-in temperature sensor.
- Wide effective range from 0.1 millitorr (0.13 Pa) to 1 atm (760 Torr, or 101 kPa), with accuracy of 15% from 1 millitorr to 200,000 millitorr
- Extremely fast response times of 250 ms
- Low power consumption for battery-powered instruments
- Temperature compensation
- Leak detection in closed systems maintained under primary vacuum pumps, such as vacuum-insulated panels
- Digital vacuum gauges
Please contact Precision Measurement Technologies for technical support, sample requests, pricing and ordering information: call 727-532-6144