Description
Single rod vibrating level switch alk-2blwj is one of tuning fork level switches. It is not afraid of hanging and impact, no problem of clamping, and has high sensitivity. The cylindrical single measuring rod structure has wide adaptability to industrial field. The single rod vibrating material level switch uses the "resonance" principle of tuning fork to generate vibration under the drive of piezoelectric elements. Only when the probe rod is surrounded by materials, the vibration amplitude decreases sharply, resulting in switch action.
The characteristics of
(1) Round smooth single rod probe, can effectively prevent clamping and sticking material, in more hanging material, still can
stable work sense unchanged
(2) It is not affected by the properties of the measured substance, and can be put into use stably without adjustment after
installation
(3) stainless steel probe with piezoelectric element built into rod body and thick tube wall is adopted. The length of shock
absorption tube is 9mm
(4) According to the different measured objects, the sensitivity of measurement can be adjusted (strong 1, weak 2, weak 3), and
the stratified liquid level or powder level with different specific gravity can be selected
(5) compared with the resistance of rotation: no moving parts, strong probe wear resistance and material impact, sensitivity
adjustable
(6) Compared with capacitive type: not affected by the dielectric constant, the surface is self-cleaning
(7) Easy to use, durable, no calibration after installation
Technical parameters
Power supply :AC220VAC or DC24VDC
Power consumption :3.5W
Vibration frequency :280Hz
Relay contact: normally open normally closed junction (AC250V/DC30V,5A)
Electrical connection :M20*1.5
Delay time: measure (stop vibration) 0.5~8 seconds recovery (stop vibration) 1~2 seconds
Working temperature: probe part -30℃~+200℃ substrate part -30℃~+70℃
Switch function: normally open NO and normally closed NC co-con
Contact capacity: 250VAC/30VDC 5A SPDT
