mechanical level gauge.pdf

IntroductionLe-Mon level meter is a precise, reliable and rugged unit for the level measurement of both low and highviscosity liquids in petrochemical, pharmaceutical, food, paint processing and general applications.It provides a very accurate mechanical indications without electric supply.A versatile range of output signals are provided as optionals.These include alarm micro-switches and analog output 4-20mA Smart and Hart protocol.Lemon is available in two different version:1. the shaft guide and the floater are linked by a rugged magnetic coupling.2. The floats hangs on a stainless steel wire spooled into the head where a unique magneticcoupling separates the mechanical reading and output signal from the process.Le-Mon featuresHigh resolution readingHigh accuracyLong magnetic coupling lifeCorrosive resistant materialsHygienic modelsFlameproof and Intrinsecally safe optionsLe-Mon specification Head: Enclosure IP65 – dial size 110mm – 2 pointers reading – two scales 0-1m / 0-5m; 0-1m/0-10m Extension neck: 100mm- 1” BSP – F. standard Fittings: ¾” BSP standard – flanged connection as option Shaft Guide: Size 20mm Wire: 316L Stainless steel plait size 0,5mm, mechanical traction 50kg Float: size from 2” to 8” Temperature: -50C to + 150C (+350C with 1000mm extension neck) Pressure: 40 bar Accuracy: ≤ ± 2 mm o.r. Repeatability: ≤ ± 1 mmMaterialsHead: Aluminium epoxy coatedShaft guide: 316L SS - PVC - PP – PVDFFloat: 316L SS – PVC – antistatic ECTFE liningWire: 316L SS plaitExtension neck : 316L SSAccessoriesAnalog Outputs:- 4-20mA transmitter 2 wire system 10-28VDC supply Intrinsecally Safe Eex ia IIC T6CENELEC as option- 60 point non-linear tank correction as option- Smart Version – Smart Hart protocol as optionAlarms Outputs:- 1 to 4 mechanical micro-switches- 1 to 4 proximity switches- 1 to 2 Eexd IIC T6 mechanical micro-switches- 1 to 4 Eexia IIC T6 proximity switches NAMUROther on requestSilea S.r.l.Via Collegio di Spagna, 3440064 Ozzano Emilia (BO)