The 7ME3960-3CM10 is a mounting chain set for the portable transducers used with the SITRANS FS220 ultrasonic flowmeter. It includes four 760 mm lengths of chain, which wrap around the pipe to secure the transducer pair in position for clamp-on flow measurement. This is a legacy part, also known under the old part number 1012ML-1. The chain set is the mechanical interface that holds the transducers against the pipe wall — without it, the ultrasonic signal path is unreliable.
RoHS compliance dates from January 1, 2010, so it meets the EU substance restrictions for current installations. REACH candidate list information is available on request. Export control is straightforward: AL: N / ECCN: EAR99I, so no special licensing for most destinations.
The four 760 mm chain lengths are sized for the portable transducer set on the SITRANS FS220. In practice, 760 mm per length gives enough wrap for pipe diameters up to roughly DN300, depending on how many chain links you need to tension around the circumference. For larger pipes, you would need additional chain sets or a different mounting fixture. Because this is a mechanical accessory — not electronics — there are no electrical ratings to verify. The fit decision is purely mechanical: chain length, transducer compatibility, and pipe diameter. If you already have the SITRANS FS220 portable transducers, this chain set is the correct mounting hardware.