The I-250, I-500 and I-1000 incorporate the latest digital mass flow control electronics; a proven, patented thermal sensor and mechanical design provide 1% of setpoint accuracy and precise control for full scale flow rates from 100 to 250 slm (I-250), 250 to 500 slm (I-500) and 500 to 1000 slm (I-1000). Multi-gas/multi-range capability is enabled through the onboard Ethernet interface and allows the user to change the gas and range of the instrument, reducing inventory requirements. The I-250, I-500 and I-1000 also feature the ability to convert flow measurements to the user’s unit of choice (e.g., slm, scfh, kg/hr.).
With the release of these products, the MKS I-Series mass flow products now provide customers with flow rate control capabilities extending from less than 1 sccm up to 1000 slm. Designed for use in harsh environments where resistance to liquid or dust ingress is essential, these elastomer-sealed instruments are available with analog I/O (0 to 5 VDC or 4 to 20 mA), with digital I/O soon to follow.