Adaptability Analysis of the Applications of Fork Level Switch and Vibrating Rod Level Switch

Product catalog summary

Introduction
Fork Level Switch and Vibrating Rod Level Switch are point level switches used for high and low level alarms in solid level measurement to prevent overflow and dry operation. Both operate on the vibration principle of a cantilever beam, where a piezo-crystal assembly drives the probe to oscillate at a natural frequency. The frequency changes when solids cover the probe, altering the output state.

Specifications of Fork Level Switch
The Fork Level Switch features two enlarged fork tines, enhancing measurement sensitivity with a minimum measurable density of 0.008g/cm³. It is suitable for fine sand, flour, foam particles, and powders. However, it may not be ideal for fine powders due to potential false alarms and is not recommended for materials with large diameter, high viscosity, or humidity due to sticking issues.

Specifications of Vibrating Rod Level Switch
The Tube-11 Vibrating Rod Level Switch has double vibrating tubes, with the inner tube nested within the outer tube. This design ensures high reliability and sensitivity, with a measurable medium density as low as 0.02 g/cm³. Its round rod-shaped structure prevents material hanging, making it superior to other contact level switches. It is ideal for measuring most particles and powders, including sand, sodium hydroxide, lime, clay, coke particles, and glass.

Recommendations
Both switches are generally interchangeable and universal for most applications. However, factors such as particle size, process temperature and pressure, medium humidity, and viscosity should be considered for optimal selection.

Catalog excerpts

Adaptability Analysis of the Applications of Fork Level Switch and Vibrating Rod Level Switch-1

Adaptability Analysis of the Applications of Fork Level Switch and Vibrating Rod Level Switch Fork Level Switch and the Vibrating Rod Level Switch are point level switches, which are commonly used for high and low level alarms in solid level measurement to prevent overflow and dry operation. Fork Level Switch and Vibrating Rod Level Switch are both based on the vibration principle of the cantilever beam. The probe (fork tines or rod tube) is driven by a piezo-crystal assembly to oscillate at a natural frequency. When in air, the probe vibrates at its natural frequency; when solids cover the probe, the frequency of oscillation drops and is detected by the integrated circuit, which in turn changes the output state. Shenzhen Jiwei Automations Ltd.

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Adaptability Analysis of the Applications of Fork Level Switch and Vibrating Rod Level Switch-2

The probe of Fork Level Switch is composed of two enlarged fork tines. By reasonably widening the fork bodies and precisely tuning, the measurement sensitivity is significantly improved. With a minimum measurable density of 0.008g/cm ³, Fork Level Switch is ideal for the level measurement of fine sand, flour, foam particles and powders. However, there are some limitations in some of the applications. Due to the large amplitude of the forks, when measuring the fine powder, the forks might be in a hollow state, resulting in delay or false alarm. In addition, for materials with large diameter or...

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Adaptability Analysis of the Applications of Fork Level Switch and Vibrating Rod Level Switch-3

From the above analysis, Fork Level Switch and the Vibrating Rod Level Switch are interchangeable and universal in most applications. For a better selection, particle size, process temperature and pressure, medium humidity and viscosity shall be comprehensively taken into consideration. Shenzhen Jiwei Automations Ltd.

Open the catalog to page 3