Posifa Technologies has announced its new PMF82000 series mass air flow sensors, which are designed for accurate low-flow measurement with rapid response times and minimal pressure drop. The sensors are intended to improve control loops and power efficiency in compact systems, including data centers, HVAC, and other technical environments where reliable air flow measurement is critical.

According to Posifa, the PMF82000 series utilizes the company’s thermal flow sensing technology to achieve repeatable accuracy rates of 1 percent of full scale from zero to 25 percent full scale, and 4 percent of reading from 25 to 100 percent full scale. The sensors deliver a typical flow response time of 9 milliseconds and operate with a low pressure drop, which the company claims can reduce the load on blowers or air handling equipment.

The devices are equipped with both 0.5 V to 4.5 V analog output and a digital interface via I2C for direct flow computation, allowing integration into closed-loop control environments. A 5 V supply voltage and typical 20 mA current consumption enable use in space-constrained, power-sensitive designs, such as rack-level air monitoring in data centers. The units are packaged with push-to-connect compatible fittings (6 mm outside diameter) and made with wetted materials including nylon, FR4, and silicone for sealing.

Environmental and operational specifications include support for over-pressure up to 30 psi, an operating temperature range from minus 25 °C to plus 65 °C, and a five-second warm-up time. The first released model in the series, the PMF82010, supports a 10 standard liter per minute (SLM) full-scale range.

Posifa states that samples and production volumes of the PMF82000 series are now available through its direct channels and authorized distributors. The product line targets mission-critical applications in data center environmental controls, HVAC, medical devices, and other industries requiring precise air flow measurement.

Source: Posifa Technologies