Emerson 211012RNA Vibrating Fork Level Switch

Emerson 211012RNA is the Rosemount 2110 Level Switch – Vibrating Fork, a compact stainless‑steel liquid level switch designed for narrow spaces and in‑pipe measurements. It uses a vibrating fork sensor with no moving parts and requires no calibration, delivering reliable on/off switching for simple level control and basic overfill prevention. A magnetic test point enables easy proof testing, and a heartbeat LED provides a visual status indicator. The 2110 carries 3‑A and EHEDG hygienic certificates and complies with FDA and ASME‑BPE standards, making it suitable for sanitary applications. Electrical options include direct‑load switching with a 2‑wire plug connection (21–264 Vac 50/60 Hz or 21–264 Vdc) and PNP/PLC low‑voltage switching (18–60 Vdc). Process connections are offered in multiple configurations, such as ¾‑in BSPT (R) and 1‑in BSPT threads, ¾‑in NPT, 1‑in BSPP, as well as semi‑extended and sanitary options like 1L and 2‑in Tri Clamp, enabling flexible mounting in various piping layouts. The Fast Drip fork design provides quicker response times with viscous liquids, and the overall compact housing is well suited for OEM environments requiring reliable, low‑maintenance level switching.