Product overview Material level meter: material level measurement refers to the detection of the height of materials (solid or liquid level) in closed or open containers in the process of industrial production; the instrument to complete such measurement is called material level meter. Material level meter is also known as "material level meter", "material level meter" and "material level meter" as "material level meter", "material level meter", "material level monitor", "material level monitor", etc. Classification is also known as "level meter" and "level meter" Continuous material level meter: it can realize the real-time continuous monitoring of the material level height of the silo. Material level switch: it is a switch to control the height of material level in the silo through point measurement. Resistance rotation level switch - thread type technical parameter Power supply: 220 VAC (a), 110 VAC (b), 12 VAC (c), 24 VDC, 50 / 60 Hz Power consumption: 3W Contact capacity 5A / 250VAC SPDT Blade speed counter clockwise 1r.p.m. (RPM) Torque: 10kg · m (1.0N · m) Material density ≥ 0.4g The working temperature is - 10 ~ 80 (the maximum temperature can reach 300 ) Insulation impedance ≥ 100m Ω (500VDC) Dielectric strength: 1500V 1min working principle The working principle is to use the permanent magnet motor to drive the blade to rotate. When the detected material rises to the blade position, the blade rotation is blocked, and the resistance is transmitted to the detection device in the junction box. The device outputs a switch signal outward and cuts off the power supply to stop the blade rotation. When the material level drops, the blade resistance disappears, and the detection device will rely on the spring tension to return to the original state, and adjust the spring tension according to the specific gravity of different materials. When the specific gravity is large, adjust the spring tension to strong or strong, otherwise adjust to the weak or weakest. Installation precautions 1. The wire inlet of the junction box must face down, and the cable fixing nut must be locked. 2. During power transmission, make sure that the power supply voltage is the same as the voltage marked on the resistance rotation switch. 3. The load of the controlled circuit must match the contact capacity of the resistance rotary switch. 4. The anti rotation switch should be avoided to be installed under the blanking port to reduce the impact of materials on the blade and misoperation; when it is unavoidable, a protective plate can be installed above the blade. 5. When the shaft length adjustable type anti rotation switch is disassembled and installed on site, when the wire rope joint is connected with the transmission shaft, the locking nut must be coated with anoxic glue, and then locked with a wrench. 6. There shall be no toxic gas corrosive to aluminum alloy at the installation site. Torque adjustment 1. The user can adjust the torque according to the specific gravity of the tested material. When the specific gravity of the tested material is large, the spring torque can be adjusted to the strong or the strongest position, and the sensitivity of the switch is poor; when the specific gravity of the tested material is small, the tension spring can be adjusted to the weak or weakest position, and the sensitivity of the switch is better. 2. Specific method: open the junction box, take out the torsion spring near the porous end and insert it into the corresponding hole as required (the hole near the terminal block has the strongest torque). Note: please do not replace the tension spring at will to avoid misoperation. Common faults and troubleshooting No. fault phenomenon, cause analysis and elimination method 1. When the material reaches, the blade still rotates. The blade size does not match the specific gravity of the material. Re determine the blade size 2. Blade deformation or transmission shaft deformation and bending, material impact force is too large, add protective plate above the blade or take other protective measures 3. The blade does not rotate. 1. The power supply is not connected properly Connect the wire to the motor and check it Contact our company to replace the motor Routine maintenance 1. Check whether the transmission shaft and blade are bent, deformed, damaged or loose. 2. Check whether the connection between transmission shaft and blade is firm. 3. Remove the materials and sundries on the blade and transmission shaft regularly.
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