The tuning fork level switch is an advanced type of level switch. It uses a crystal to excite the tuning fork, causing it to vibrate. When the tuning fork is immersed in a liquid, its vibration frequency changes. This frequency change is detected by electronic circuits and used to output a switch signal. Also known as the "electrical float," the tuning fork level switch can be used in situations where traditional float switches are unsuitable due to factors such as structure, turbulence, agitation, bubbles, or vibrations.
With no moving parts, the tuning fork level switch requires no maintenance or adjustment, making it a reliable and upgraded alternative to float switches.
Product Features
Compact design for flexible installation in space-constrained environments.
Multiple output options: relay output, PNP output for versatile applications.
Suitable for various media including liquids, acids, alkalis, solid powders and granules.
Highly durable materials (304, 316L, PTFE) for corrosion resistance in extreme conditions.
Technical Parameters
Medium temperature range: -20~200℃
Ambient temperature: -20~60℃
Ambient humidity: ≤95%RH
Applicable media: Liquids, powders or granulated solids
Density requirements: Solids ≥0.1g/cm³; Liquids ≥0.6g/cm³
Solid particle size: ≤10mm
Maximum liquid viscosity: <1000mm²/s
resting angle: ≤50°
Pressure range: ≤6.4MPa (sanitary type ≤3MPa)
Material: 304, 316L, PTFE
Protection class: IP66
Connection options: 3/4NPT, G1″, DN50 flange, DN80 flange
Supply Voltage: DC24V; AC220V 50Hz
Output signal: 2 cables 5A 220V AC; 3A 24V DC; 3-wire relay output
Vibration frequency: 300±50Hz
