Product Introduction
Air Quality Mass Flow SensorPMF4000 Description:
The PMF4000 adopts a new third-generation thermal mass flow sensor chip manufactured with unique micromachining technology. The sensor chip uses a pair of thermocouples to detect temperature gradient changes caused by mass flow, offering superior signal-to-noise ratio and repeatability. The 'solid-state' thermal insulation structure on the sensor chip eliminates the surface cavities or fragile membranes used in traditional products, making the sensor chip robust, clog-resistant, and resistant to pressure shocks.
The PMF4000 series includes the PMF4000V with analog output and the PMF4000D with I2C digital output.
The PMF4000 series supports a maximum flow range from 100 SLM to 300 SLM. The sensor is temperature compensated over a temperature range of 0 to 50 °C. The linear output provides users with maximum flexibility and usability.
Air Quality Mass Flow SensorPMF4000 Features:
Excellent performance in a robust and cost-effective package
'Solid-state' sensor chip (no surface cavities or fragile membranes)
Clog-resistant and resistant to pressure shocks
High Accuracy (Typical: ±4%)
Fast Response Time (Typical: 5 ms)
Linear Output and Temperature Compensation
Low Zero Drift, Long-Term Stability
Harness with Pre-Installed Connector
(Analog version only)
Air Quality Mass Flow SensorPMF4000 Applications:
Oxygen concentrators
Ventilators and portable ventilators
Nebulizers
CPAP devices
Anesthesia machines
Leak detection
Spectrometers
Mass flow controllers
Fuel cell control
Air Quality Mass Flow SensorPMF4000 Ratings:
Operating temperature: -25 to 85 °C
Calibration temperature range: 0 to 50 °C
Storage temperature: -40 to 90 °C
Humidity: 0 to 100% RH, non-condensing
Shock: 100 g peak (5 drops, 3 axes)
Operating pressure: 25 psi
