Level meter definition
Level gauges are used in many industrial or civil applications where it is necessary to monitor the height of liquids in open or closed windows or natural water flow patterns. We will usually call the liquid level in the window the liquid level. The window is the solid or particulate material in the window. The procedure is called the material level. The instrument for measuring the liquid level is called the liquid level gauge, and the instrument for measuring the liquid level is called the bit gauge. The instrument for measuring the interface between the two surfaces and the three kinds of cutters is different in density, and the interface of the liquid medium is not called the interface meter. The instrument is collectively referred to as level gauge ultrasonic level meter (ultrasonic level gauge), which is a kind of low level meter. The main assessment point is non-contact measurement. The level meter not only has high precision, high stability, and good temperature. The compensation effect also has the advantages of waterproof performance, light weight and small size, etc. It has strong anti-interference ability and can completely solve the problem of condensation. The valve body of the liquid level instrument is made of cast iron, ductile iron, carbon steel, alloy steel, stainless steel, copper and other materials, and can also be smelted and manufactured according to the special needs of users. Widely used in water conservancy, construction, fire control, power, environmental protection, petroleum, chemical and other fields.
Level meter classification:
Liquid level meters mainly include float level gauges, buoyancy level gauges, float level controllers, magnetic flap level gauges, ultrasonic level gauges, wireless ultrasonic level gauges, and high protection level gauges. In addition to specialized level gauges, level meters can also measure the level. Commonly used level switches mainly include tuning fork level switches, RF admittance level switches, cable level switches, split level switches, level gauges, radar level gauges, etc.
Level gauge fault judgment and solution
1. Check whether the power supply is connected correctly. If it is found that the connection is incorrect, it should be modified according to the operation manual.
2. Measure the voltage between +24V and O/P with a three voltmeter. The voltage should be between 13V~36V. If the voltage is abnormal, you should check whether the line or related equipment is abnormal.
3. The second item should be confirmed after normal, and then in the 4 ~ 20MA loop string a milliampere meter, check the current is normal, if the current value is not normal should replace new products or contact customer service staff
4. Check the voltage between IN and COM with a voltmeter. Normally it should be about 2.5V. If the voltage is too low, you should remove the EXC wire. If the voltage is normal, it means that the magnetic yellow module is abnormal, if the power is still low It means that the signal converter is damaged. If you find the above phenomenon, you should replace the signal converter or contact customer service personnel according to the actual situation.
When the float ball falls to the bottom, the flag board does not return to the zero flag to keep up with the speed at which the float ball drops. A throttling device should be installed to slow down the lifting speed of the liquid level.
The flag plate will not be flipped, or the color plate will be disordered. Make sure that there is no magnetic substance in the surrounding and inside of the body tube. After the clearance, use a magnet to sweep it once to make the color uniform.
360-degree flip film floating magnetic field is too strong, contact customer service personnel to replace the float
The proximity switch does not operate Check whether the switch operation is normal with the meter. When the magnet is close, the contact point should be turned on and the resistance should be less than 300MΩ. After the magnet is removed, the switch should be open and the resistance should be more than 10MΩ. If it does not meet the above requirements, it should be replaced. New proximity switch
Float continuous level indicator signal converter 2 lines are not received How to receive instructions Please follow the instruction manual to have 24V in the signal converter connected to the +24V terminal of the indicator, O/P of the signal converter The terminal receives the AI ​​end of the indicator, and if it still fails to operate normally after power on, contact the customer service personnel.
Rotary type level switch switch no output 1. First smell the power seat whether there is burnt smell, if there is burnt on behalf of burned, you should contact customer service personnel to replace new products
2. Check if the specific gravity of the material is too light and replace the large blades.
3. The installation site is not proper. If there is direct impact on the material, it should be installed baffle protection, or avoid the location of the blank
Switch parts fall 1. Please check whether there is vibration motor or other vibrator equipment.
2. Purchase other products to avoid internal parts falling due to vibration
Please remove the stagnant water in the switch and dry it, confirm that the insulation of the line to the ground is more than 100MΩ, and then wire the construction according to the regulations, and then seal all the gaps with the sealing glue. 2. Adjust the entrance to the downside
Sectional Directional Control Valve
Sectional Directional Control Valve,Sectional Control Valve,Open Center Sectional Valve,Sectional Valve
Huaian Hy-waloil Machinery Co.,Ltd , https://www.hywaloil.com