Tuning Fork Liquid Level Switch is a highly reliable control switch dedicated to liquid level measurement. The length of the tuning fork is only 40mm, which is suitable for liquid level measurement in narrow spaces such as containers, storage tanks, tanks and pipes. At the same time, based on the design principle of detecting the change of vibration frequency when the fork body is immersed in the medium, the fork body is precisely tuned, and the measurable medium density of the product is as low as 0.5g/cm3. It is not only suitable for hydrochloric acid, sulfuric acid, nitric acid, lye, syrup, and medicine. It is especially suitable for high-pressure liquefied gas (such as LNG) and complex measurement occasions with foam, bubble, viscous liquid and vibration interference.
| Working principle Specifications |
UZK-Y Tuning Fork Liquid Level Switch is composed of circuit hardware part and tuning fork sensor part. The tuning fork sensor is composed of piezoelectric ceramic and fork body. The piezoelectric ceramic is fixed to the bottom of the fork body, and the self-excited oscillation circuit of the circuit hardware part make the fork body vibrate; according to the different vibration frequency of the fork body sensor part in the air and in the liquid, detect whether the fork body is in the liquid or the air, and output the switch signal.Battery: 6VDC (4XAAA)
Alarms: Audible and visible alarms
Alarm Volume: ≥110dB
Ambient temperature: -40℃to +60℃(-40℉ to +140℉)
Sensor:Float sensor
EU-Type Examination Certificate No.: Presafe 18 ATEX 13423X
IEC Certificate No.: IECEx PRE 18.0084X
Applicable Directive: 2014/34/EU
◆ Low battery alarm.
◆ Adjustable sensor level.
◆ A standard 2 inch BSP fitting provided for mounting. Optional mounting fittings are available upon request.
Ambient temperature: -40℃ to 70℃ (-40℉ to 158℉)
Fork body material: stainless steel
Liquid density: ≥0.5g/cm³
Measurement accuracy: measurement deviation ±1mm
Repeatability: ±1mm
Power supply voltage: AC 220V; DC 24V
Work rate: ≤1.5W
Output signal: two groups of normally open and normally closed contacts
Outlet port: G3/4”
Contact capacity: AC220V 8A or DC24V 8A
Sensor length: 40mm
Input depth: ≤70mm（can be customized）
Max. pressure in vessel: -1～64bar(please specify in PO)
Temperature range in vessel: -40～150℃
Oscillation frequency of tuning fork: about 1000Hz
Oscillation amplitude of tuning fork tip: about 0.5mm
Damping delay of tuning fork: about 1 S
Ingress protection: IP66
Ex-marking ExdⅡCT6
