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
