Catalog excerpts
Ring-11 Liquid Level Switch Catalog SHENZHEN JIWEI AUTOMATIONS LTD.
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Ring-11 Liquid Level Switch Overview Ring-11 Liquid Level Switch is a highly reliable instrument for liquid level detection and control. The fork length is only 40mm which makes Ring-11 applicable not only for vessels, process tanks and storage tanks, but also particularly for pipelines or other applications with constricted space. Based on the fork resonant principle, when a fork vibrates in harmonic resonance comes in contact with measured liquid, its vibrating frequency will greatly decrease. The fork’s harmonic resonant frequency has been precisely pre-adjusted to achieve high...
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www.jiweiauto.com Typical applications Liquefied natural gas and LNG with the density of 0.56g/cm³ in transport pipelines. Pipelines in pump protection system. Herbicides and fungicides in insecticide Factory. Technical data Applicable liquid Probe data Accuracy Switching delay Power supply Working environment Overvoltage protections Density Viscosity Flow velocity Surface finish Vibrating frequency Fork length Measurement error Delay Repeatability When immersed When laid bare Relay output Two-wire NAMUR Transistor Maximum power Relay output Two-wire NAMUR Transistor Process pressure...
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www.jiweiauto.com Dimensional drawing SHENZHEN JIWEI AUTOMATIONS LTD.
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www.jiweiauto.com Wiring plan Relay output (DPDT) ①: Power terminal ②③： Relay output (DPDT) Two-wire output ①: Power terminal /output (8/16mA) NAMUR output ①: Power terminal, ouput (≥2.1mA/1.0mA) Installation diagrams Notes： Surface of fork wing should be parallel to the movement direction of measured medium, as showing in Fig.1and Fig.2. To prevent the instrument from filling impact damage or generating false signals, avoid installing instrument near inlet and outlet, as showing in Fig.3 and Fig.4.
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www.jiweiauto.com Order information Non-explosion-proof Intrinsic Safety (Ex ia IIC T1～T6 Ga) Flameproof Enclosure (Ex d IIC T1～T6 Gb) Gas/Dust Explosion-proof (Ex d IIC T6~T1 Gb+ Ex tD A21 IP66 T80℃~440℃) (SIL Functional Safety Assessment available for all approvals) Process temperature Process fitting C -50～150℃ H -50～250℃ A -50～150℃ / with gas-tight leadthrough B -50～250℃ / with gas-tight leadthrough TC TD TH TM FA FB FC FD FE FF FG FH CB XX Thread G¾'' A Thread ¾'' NPT Thread G1'' A Thread 1'' NPT Flange DN25 PN40/316L Flange DN50 PN40/316L Flange DN25 PN40/ECTFE coating Flange DN50...
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