Ordering Information Model 2120 Vibrating Fork Liquid Level Switch / –40…302 °F (–40...150 °C) Materials of construction: process connection/fork D 316/316L Stainless Steel (1.4401/1.4404) dual certified Process connection size / type 1D 1-in. NPT Thread Electronic type V Relay DPCO, 20 to 264 Vac 50/60Hz, 20 to 60 Vdc Surface finish 1 Standard surface finish Product certifications E1 ATEX Flameproof Housing S Stainless Steel, M20 conduits/cable threads Fork length M(1) Extended, customer specified length in millimeters Specific extended fork length 0150 Factory default length (only if Fork Length A or H is selected) Calibration data certification Q4 Certificate of functional test Minimum length available for 3 /4-in. threaded connection is 3.8 in. (95 mm); for 1-in. threaded, it is 3.7 in. (94 mm); for flanged, it is 3.5 in. (89 mm); and for Tri Clamp, it is 4.1 in. (105 mm). Maximum length is 157.5 in. (4000 mm), except for ECTFE copolymer coating and polished process where the maximum length is 59.1 in. (1500 mm) and 39.4 in. (1000 mm) respectively. Examples: Code E1181 is 118.1 inches. Code M3000 is 3000 millimeters.Minimum length available for 3 /4-in. threaded connection is 3.8 in. (95 mm); for 1-in. threaded, it is 3.7 in. (94 mm); for flanged, it is 3.5 in. (89 mm); and for Tri Clamp, it is 4.1 in. (105 mm). Maximum length is 157.5 in. (4000 mm), except for ECTFE copolymer coating and polished process where the maximum length is 59.1 in. (1500 mm) and 39.4 in. (1000 mm) respectively. Examples: Code E1181 is 118.1 inches. Code M3000 is 3000 millimeters.
