Model 640S Series Steel-Mass® Insertion Mass Flow Meter

Our Model 640S Steel-Mass® inserts easily into ducts and pipes up to 36-inches in size to accurately monitor total gas mass flow rate. Larger probe lengths are available upon request.  Typical applications are for general industrial process control include compressed air flow, aeration basin air flow, combustion air flow, natural gas fuel flow, custody transfer and stack gas emissions flow monitoring.

This meter features Sierra's well known Smart Electronics Package for field-rangability, field flow-range adjustment, and field validation and diagnostics.  The Model 640S has very low pressure drop, and wide turndown.

The Model 640S is hazardous area approved for FM, CSA, EEx, PED, CE, CENELEC and is also available with a NEMA 4X (IP65) enclosure.  Product accuracy is ±2% of reading, 0.2% of full scale repeatability.

Smart Interface Program
Click to download a zipped Smart Interface Program (Note extended download time required)