Jiwei Catalog 2024
122Pages

Catalog excerpts

Company Introduction Jiwei Automations Ltd. is a high-tech company co-founded by five experienced professionals in the automation industry in 2013. We are located in Shenzhen, a pioneer city of national economic development district in China, with registered capital of ￥14.5 million Yuan. Specializing in R&D, emphasizing manufacturing quality and reliability, and offering excellent services, we have become a competitive level meter manufacturer in the domestic market and abroad. R&D: Our R&D engineering team accounts for almost half of our total staff members. Our engineers are striving to...

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Vibrating Level switch Vibrating Level Switch is based on a cantilever beam vibrating principle. A cylindrical rod or a fork is used as a vibration probe. Piezoelectric devices are utilized to drive and detect the vibration. With state-of-the-art techniques, the specifications of our Vibrating Level Switch and its reliability reach to an advanced level in the field. When vibration probe comes in contact with medium, vibration amplitude and frequency of the probe will substantially decrease, so does the output of detecting piezoelectric device. The amount of decrease is analyzed by an...

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Jiwei Vibrating Level Switch has four series of products to meet requirements of various applications: Tube-11 Vibrating Rod Level Switch: This innovative Vibrating Rod Level Switch is designed with double vibrating rods, which is a first made-in-China model. It suits the majority level switch applications for granular and powdery bulk solids. The lowest medium density can be as low as 0.02g/cm³. Fork-11 Tuning Fork Level switch: The area of fork body has been reasonably increased for higher sensitivity. Particularly suitable for powder and fine-granule with a density as low as 0.008g/cm³....

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Tube-11 Vibrating Rod Level switch Tube-11 is the first made-in-China Vibrating Rod Level Switch that is designed with double vibration rods, it is suitable for granular, powdery and fine-grained bulk solids with bulk densities as low as 0.02g/cm³, such as PVC, sodium hydroxide, lime, sand, soil, coal, dust, sugar, grain, bean, etc. For tall and narrow silos, Vibrating Rod Level Switch with the suspension cable is also available. The robust design is highly reliable and with industry-leading performance and specifications. ZL201610511184.7) on Tube-11 Vibrating Rod Level Switch, as well as...

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Operating principle The probe of Tube-11 Vibrating Rod Level Switch is designed with double vibration rods. The inner vibration rod nests with the outer vibration rod. When resonant frequency of inner and outer vibration rods is finely adjusted to the same value, both reliability and sensitivity of the Vibrating Rod Level Switch are at extremely high level. The innovative developed technology enables the sensor to detect fine-grained solids with density as low as 0.02 g/cm³. The piezoelectric devices are utilized for vibration drive and detection. When vibration frequency of the inner and...

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■ With CE certificates, gas/dust Flameproof Enclosure and gas/dust Intrinsic Safety certificates, and IP66/IP67 Ingress Protection. ■ Strong anti-corrosion probe with 316L and 318 S13. Application ■ Silo with mixture of CaSO4 and CaSO3 resulting from semi-dry desulfurizing reaction at a coal power plant. © The problem of medium buildup has been successfully solved due to a larger redundancy. @ The fluctuation of humidity results in an unstable dielectric constant of the mixture of CaSO4 and CaSO3, but Jiwei Tube-11 Vibrating Level Switch could provide a reliable measurement in this...

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Note: ® Maximum applicable particle size is 20mm, in this case, medium density must be lower than 0.05g/cm3. ® Cover exhaust nozzle with whistle from instrument accessories and position the whistle such that whistle's internal wall at its vent side is tightly attached to the external wall of exhaust nozzle, slowly increase the flow of cooling air until whistle blows up. This is when cooling air is at the expected minimum flow.

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Dimensional drawings Tube-11 Flange Version Standard (regular temperature) (regular temperature) (high temperature) (high temperature) Tube-11 Threaded Version Standard (regular temperature) (regular temperature) (high temperature) (high temperature)

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Tube-11 Flange Version Ultra-high temperature φ88

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Tube-11 with Suspension Cable Thread Customized length Customized length Relay output Two-wire output ①：Power terminal / output (8/16mA)

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 For vertical installation, install level switch at a distance of d/6 from the vessel wall as showing in Fig.1.  For horizontal installation, we recommend mounting Tube-11 approx. 20° inclined to the vessel bottom to avoid medium buildup as showing in Fig.2. To protect the probe from direct impact damage, a protection sheet should be installed above the vibration rod, and must be longer than the intrusion length (horizontally), so the vibrating rod does not protrude directly into the filling stream. Generally, the protection sheet can be a convex shape (inverted “V” section) as in Fig.2...

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Approvals N Non-explosion-proof I Gas Intrinsic Safety ( Ex ia IIC T 6~T1 Ga ) D Gas Flameproof Enclosure ( Ex d IIC T6~T1 Gb ) M Dust Intrinsic Safety ( Ex iaD 20 T85°C~450°C ) E Dust Protection Enclosure ( Ex tD A21 IP66 T80°C~440°C) F Gas/Dust Explosion-proof ( Ex d IIC T6~T1 Gb + Ex tD A21 IP66 T80°C~440°C ) Process fitting® TG Thread G 1%" A TN Thread 1%"' NPT TH Thread G1"' A TM Thread 1"' NPT , FA Flange DN50 PN40© FB Flange DN80 PN40 FC Flange DN50 PN16 FD Flange DN80 PN16 XX Customized Signal output R Relay ( DPDT ) 20—72V DC/20—253V AC® W Two-wire ( 8/16mA ) 10—36V DC Housing...

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Fork-11 Tuning Fork Level Switch Fork-11 Tuning Fork Level Switch is specially designed for powdery and fine-grained bulk solids, such as sands, fine raw materials in chemical industry, flours, salts etc., successfully handles lightweight media applications that are difficult to measure or detect like fine low density media with density of 0.008g/cm³. Fork-11 offers maximum reliability in a wide application range. For tall and narrow silos, Fork-11 with the suspension cable is also available. Operating principle Fork-11 Tuning Fork Level Switch probe is based on a tuning fork harmonic...

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