The vibration of tuning fork level switch is caused by the resonance of the piezoelectric crystal.

When subjected to material damping, amplitude sharply reduces and phase and frequency changes, which will be detected by internal electronic circuit, after treatment, converted into a switching signal. HGYYK tuning fork level switch may monitor tank level position, control and alarm, applicable for a variety of liquids, powders, granular solids.

3 input modes: 24V DC, 110V AC or 220V AC

3 output modes: direct current output, relay contact output, current voltage output

All the types are with high / low trouble alarm mode and optional switch sensitivity.

2. Main Technical Parameters

Fork length: 100mm ~ 200mm (extended length available on request)

Power supply: 24V DC or 220V AC/60 Hz

Operation temperature: -40 to 80 Deg. C (standard), -40 to 130 Deg. C (Middle-temperature)

Ambient temperature: -20 to 70 Deg. C

Operation pressure: ≤2.5 Mpa

Medium density: ≥0.7 g/cm3 (liquid), ＞0.1 g/cm3 (solid)

Output method: 220V AC / 20mA, 24V DC / 0.5A

Power consumption: 1.5W (220V AC power supply), 0.25W (24V DC power supply)

Process connection: thread, flange

Electrical connection: M20×1.5

Housing protection: IP65

Ex-proof: Ex dII CT4

Environment humidity: ≤ 95%RH

Medium: Liquid, powder, or solid particle

solid particle diameter: ≤ 10mm

Liquid viscosity: ＜ 1000mm 2/s

Medium rest angle: ≥ 200

Pressure range: ≤ 1Mpa

Housing material: cast aluminium

Fork material: SS 304

Relay output:  8A 220V AC

DC Voltage output:  0 - 5V

DC current output:  0 - 10mA

Fork vibratory frequency: 300 ± 50Hz

Environmental vibration levels: V.L.4, acceleration is not more than 1g

Action time of the switch: 1 - 60S