Tube-11 Vibrating Rod Level Switch with Cable Extension
  • Tube-11 Vibrating Rod Level Switch with Cable Extension
  • Tube-11 Vibrating Rod Level Switch with Cable Extension
  • Tube-11 Vibrating Rod Level Switch with Cable Extension

The Jiwei Tube-11 Vibration Rod Level Switch with Suspension Cable is a rod level switch with a cable extension for solids. With the suspension cable, the Vibrating Rod Level Switch can be applied in tall and narrow silos, even in oscillating environments, particularly suitable for the sediment measurement in liquid.

In industrial settings, heavy material build-up and mechanical stresses are a challenge for any level switch. This is not a problem for Tube-11: The flexible suspension cable avoids material abrasion and mechanical strain caused by movement of the bulk solid and reliably alarms against overfilling.

The operating principle is completely the same as that of the standard Tube-11 model. In terms of the structure, high-temperature model is assembled an extension tube between the housing and the process connection, so that the temperature in the housing can be reduced to a normal range where the electronic devices can tolerant. At the same time, all piezoelectric components that drive and detect the vibration are selected from high-temperature resistant piezoelectric ceramics, electrodes, wires, and encapsulant materials. These high-temperature designs ensure the instrument work reliably in process temperature conditions up to 250 ℃.

● Abrasion resistant and highly robust double-rods design.

● Unaffected by changes of product properties (maintenance-free).

● A number of options are available for customizing the meter to the needs of the user including a version to detect precipitates interface (separation layers) within a liquid.

● Silos with light bulk goods.

● Limit and overfill detection.

● Detecting solids in water of the sedimentation tank.

Applicable mediumTypes of the mediumGranular or powdery solids ①
Density≥0.02g/cm³
Probe dataVibration frequency~ 360Hz
Probe length125mm
Probe diameter16mm
Switching DelayWhen immersed0.5s
When laid bare1s
Power SupplyRelay20~253V AC/20~72V DC
Two-wire10~36V DC
Max. Power consumption8VA(AC); 1.5W(DC)
OutputRelayDPDT,5A/253V AC/24V DC
Two-wire8mA/16mA,Alarm <2.3mA
Installation conditionsProcess pressure-1~16bar
Process temperatureRegular temperature: -50~150℃
High temperature: -50~250℃ Ultra-high temperature: -50~400℃
Ambient temperature-40~80℃
Storage and transport temperature-40~80℃
Cooling system data (for Ultra-high temperature only)Air intake tube6×4  (Outer diameter 6mm) PU tube
Cooling air pressure0.8Mpa
Min. cooling air flow rateTo be adjusted②
Overvoltage protectionRelayCategory III, class I
Two-wireCategory III, class II
Certificates and approvalsIngress ProtectionIP66/IP67
Explosion-ProofFlameproof Enclosure::Ex d IIC T6~T1 Gb, Ex tD A21 IP66 T80~440℃ Intrinsic Safety:Ex ia IIC T6~T1 Ga, Ex iaD 20 T85~450℃
CELVD and EMC Certificates
MaterialsHousingAluminum alloy, stainless steel
Ground terminal316L
Process connection316L
Probe316L, 318 S13
Process sealKlingersil C-4400
Note: ① Maximum applicable particle size is 20mm, in this case, medium density must be lower than 0.05g/cm³.
② 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.

● 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 situation because the measurement is independent of dielectric constant.

● Environment friendly fuel tank in combustion system at power plant.

The density of sawdust or straw is as low as 0.1g /cm3, which is out of range for most of level switches on the market. However, Jiwei Tube-11 successfully provided a reliable result in this situation, while Tube-11 can work reliably for medium density as low as 0.02g/cm3.

● Electrostatic precipitator bag, ash hopper and conveying pump in ash transport system at power plant.

The probe of Tube-11 is only 125mm long, significantly reduces the impact area from filling material and prevents the probe from impact damage.

● Alumina silo.

Alumina particles are lumpy, and extreme working conditions of strong magnetic field and harsh ambient. Alumina silo has high requirements for level measuring instruments, Jiwei Vibrating Rod Level Switches are able to offer maximum reliability.

● Coal bunker in ash collector (fly ash silo).

● PVC granule storage silo, and silo in packaging line at chemical plant.

● Activated carbon particles.

● Glass fragments.

● Powders and particles with process temperature in 400℃.

Tube-11 Vibrating Rod Level Switch with Cable Extension

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