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Introduction

principle

The working principle of the tuning fork level switch is that through a pair of pressures installed on the tuning fork base, the transistor makes the tuning fork vibrate at a certain resonance frequency. When the measured material covers the tuning fork, the vibration is slowed down. The transformed vibration frequency is automatically sensed, and the signal is processed to adjust the relay to achieve the purpose of indication or control.

Features

Strong adaptability - the different electrical parameters and density of the tested material will not affect the measurement. Harsh conditions such as scaling, agitation, turbulence, air bubbles, vibration, medium viscosity, high temperature, and high pressure have no effect on inspection.

Maintenance-free – Since the inspection process of the tuning fork limit switch is completed by the electronic circuit, there are no moving parts, so once installed and put into operation, no maintenance is required.

No need to adjust – because the inspection of the tuning fork limit switch is not affected by the dielectric parameters and density of the test medium, no on-site adjustment is required no matter what kind of liquid is measured.

Function

It is suitable for fixed-point alarm or control of solid material level in various silos and liquid level in various containers.

Solid Materials: Free-flowing, medium-density solid powders or granules.

Such as: fly ash, cement, sand, stone powder, plastic particles, salt and sugar, etc.

Liquid medium: explosive and non-explosive dangerous liquid, corrosive liquid (acid, alkali) high viscosity liquid.

Such as: tap water, acid-base solution, mineral water pulp, dyes, oils, milk, alcohol, beverages, etc.

application

Paper making, brewing, cement, chemical industry, dairy products, edible oil, food and beverage

Sugar, fertilizer, glass, textile, semiconductor, water and sewage, pharmaceutical manufacturing

Coal mines, smelting, paint workers, oil and gas, metal packaging.

technical parameter

Supply voltage:DC24V;AC220V
Power consumption:DC power supply: 0.25W (24V)
Power consumption:AC power supply: 1.5W (220V)
Operating temperature:Standard type: -40~80℃; High temperature type: -40~130℃
Ambient temperature:-30~70℃
Working pressure:-0.1~2.5MP 
Media Density:≥0.7g/cm3
Liquid viscosity:≤10000mm2/s
output method:DC24V, relay contact output (DC24V 3A)
AC220V, relay contact output (AC220V 3A)
Electrical InterfaceM20×1.5
Protection class:IP65
Fork body length:100~2000mm
Wetted material:Stainless steel
Junction box material:Aluminum alloy

Selection table

TF-Tuning fork level switch

Electrical compartment material

Cast aluminum electrical wiring compartment (IP65, no visual action point properties)

Stainless steel 1.4301 (304) electrical wiring compartment (IP65, visual action point properties)

Power supply and output method

DC24V power supply, relay output 3A (*)

AC220V power supply, relay output 3A

Fork form

Standard type: 100mm (*)

Extended type, the number is the extended length (100mm fork body size remains unchanged) (this data includes 100mm)

Process connection

Threaded interface: G1″ (*)

Threaded interface: NPT1″

Fixed flange: DN40

Operating temperature

Standard type: -40...80℃ (*)

High temperature type: -40...130℃

material

Stainless steel 1.4301(304) (*)

Stainless steel 1.4435 (316L)

Corrosion-resistant material PTFE
The above selection table does not contain selection codes. For selection, please contact the sales staff or email to sales@kewill-auto.cn to obtain a complete sample.

Remarks: "*" is marked as stock standing or fast delivery

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