Anti-interference Industrial Grade Level Meter, Tuning Fork Switch Specifications :
|Payment Terms||T/T, L/C, Western Union, etc.|
|Delivery Detail||10-25 working days.|
Anti-interference Industrial Grade Level Meter, Tuning Fork Switch Detail Introduction :
Fork switch is a new type of level switch. The sensor's tuning fork vibrates at a natural frequency. When the tuning fork touches liquid or other materials, its natural vibration frequency is reduced, and energy is consumed on the friction between the material particles, forcing the amplitude to decay sharply and stop the vibration, and the change in frequency activates the liquid level switch , Generate an on-off signal.
This working principle does not require large-scale mechanical movement, has low driving power, does not need calibration, and can be started quickly and at low cost. Simple structure, no mechanical moving parts, no maintenance, no wear, long operating life, sensitive and reliable. Tuning fork level switches are also called "electrical floats". The "tuning fork switches" can be used where float level switches are used and where the float level switches cannot be used due to structure, turbulence, agitation, bubbles, vibration, etc. .
Since the tuning fork level switch has no moving parts, it does not require maintenance and adjustment. It is an upgraded product of the float level switch. Tuning fork level switches are widely used in petrochemical, light industry, food, water treatment and other industries to perform upper/lower limit alarm and control of the level.
◆ Strong adaptability: the different electrical parameters and density of the tested liquid will not affect the measurement. Scaling, agitation, turbulence, bubbles, vibration, medium viscosity, high temperature, high pressure and other harsh conditions have no effect on the detection.
◆ No adjustment required: Because the detection of the tuning fork limit switch is not affected by the electrical parameters and density of the measured medium, no on-site adjustment is required no matter what kind of liquid is measured.
◆ Maintenance-free: Since the detection process of the tuning fork limit switch is completed by an electronic circuit, there are no moving parts, so there is no need for maintenance once it is installed and put into operation.
Power supply: 24VDC or 220VAC
Output mode: SPDT relay (single pole double throw)
Environment temperature: -20℃～70℃
Medium temperature: -40℃～150℃
Working pressure: less than 2MPa Medium density: minimum 0.6g/cm3
Delay: 1～50s (optional)
Power consumption: 0.5W High and low alarm: HLFS (high alarm mode) or LLFS (low alarm mode) can be set on site
Electrical interface: G 1/2”
Process connection: 1"NPT threaded installation (standard, optional BSPT); flange installation (optional)
Shell protection: IP65 Explosion-proof: Exd II CT4
Tuning fork limit switches are usually installed side-mounted (installed on the side of the silo wall) and the side wall of the silo body detects the upper and lower limit positions of the material level; when the silo body is inconvenient to open holes on the side, it can be installed on the top (on the top of the silo). The location should be selected to avoid the impact of the material when feeding; it can also be installed on the pipeline to prevent the pump from running without materials.