TF-900 Vibrating Rod Type Level Switch

JVLER TF-900 Vibrating Rod Level Switch utilize the piezoelectric crystal and the inherent frequency of the rod to drive and signal feedback to the rod, the rod produces resonance. When the material level contacts the rod, it sends back a frequency signal, and when the circuit detects the frequency drop of this signal, it converts it into an output of a contact signal. The damping effect produced by the measured object covering the rod causes the vibration frequency of the rod to decrease and outputs a switch signal. Therefore, there is no signal amplification circuit inside, which eliminates the problem of frequently adjusting sensitivity due to changes in material properties. When the fork switch is used for low alarm (or low-level control) purposes, the medium in the container flows through the rod. When it is lower than a specific position of the rod, it causes a change in the inherent frequency, which is detected by the electronic component, thereby switching the output status. When used for high-level alarm (or high-level control) purposes, the medium in the container rises and contacts the rod, causing a change in the inherent frequency and switching to the output status. 

Specification

Application: Particles/Powder

Fork Material: SUS304/316/316L

Material: Stainless Steel

Fork Length: 280mm

Connection: G 1",” NPT,Flange

Process Temperature: -40~+80℃

Process Pressure: -1~16BAR(232PSI)

Signal Output: Relay, PNP,NPN

Power Supply: 24VDC/220VAC

Vibrating Frequency: 400 HzK10%

IP Protection: IP65/IP66/IP67

Feature

● Can be used in safety systems with SIL2/SIL3 functional safety requirements

● Can be used in sterile applications in the life sciences industry

● No adjustment required: quick start, economical

● No mechanical moving parts: maintenance-free, no wear, long service life

● Functional safety: fork damage monitoring

● Integrated stainless steel housing (optional)

● Can reach IP68 protection level, ensuring that the equipment is always in a sealed state, even during high-intensity cleaning or immersion in water for several hours, the equipment will not be flooded

Application

Product performance is reliable and not affected by flow, disturbance, bubbles, foam, vibration, solid medium or adhesion. It is an ideal limit sensing product for liquids, powders, and particles.

Overflow protection

High and low liquid level alarms

Pump control or restriction detection

Dry running protection or pump protection

Tuning Fork Level Switch13272942.pdf