Liquid Measuring PN2.5 Magnetic Tank Level Indicator And Remote Transmitter
1. Matters needing attention before selection
Before selecting the model, the magnetic flap level gauge must fully understand the specific information of the working conditions. When selecting the model, you should communicate with the sales engineer about the basic information, such as the density and viscosity of the measured liquid, the measuring range, and the process connection method. With materials, output signals, etc.
2. the selection of explosion hazards
When selecting a model, it is necessary to consider the safety of the site conditions. If there is a dangerous explosive medium on site, for safety reasons, you need to consider the use of explosion-proof magnetic flap level gauge. The magnetic switches and reed switch remote transmitters equipped with the Flap-11 magnetic flap level gauge have the explosion-proof certificate certified by the official agency, and have passed the dual certification of intrinsically safe explosion-proof. Among them, the explosion-proof level is ExdIICT6 The intrinsic safety level is ExiaIICT6, which enables the instrument to operate safely, efficiently and stably in explosive situations.
3. Selection of outdoor occasions in winter
If you need to install the magnetic flap level gauge in outdoor environment, you need to decide whether it is necessary to configure additional devices such as steam jacket, electric heating, heat preservation/insulation, frost protection, etc. according to the changes of environment and seasons Freezing and freezing at too low temperature, so that the instrument can still accurately measure the liquid level in real time under cold working conditions.
4. the selection of remote monitoring occasions
If the magnetic flap level gauge is installed outdoors or in a high place, the reading is very inconvenient for the instrument observer, and after using the reed switch remote transmitter and the magnetic flap level gauge for assembly, the The data measured by the magnetic flap level meter is transmitted to the observation room, which is convenient and fast, and can greatly reduce the workload.
Cooperate with the remote transmitter to use the magnetic flap liquid level gauge, which is usually called the remote magnetic flap liquid level gauge. One of its biggest features is that it can realize the real-time display of the liquid level in a long distance.
The function of the magnetic switch is to make the magnetic flap level gauge play a "switching" current limiting and anti-overflow function, and some users visually call it "magnetic flap level switch", which can be used as a switch Come to use and limit the liquid level.
Widely used in petroleum, chemical industry, oil field, pharmaceuticals industry, food, wine industry etc. suitable for level measurements under the environment of high/low temp, high pressure, strong corrosion, toxicity.
|(1) Center-center distance:||150~6000mm|
|(2) Medium density:||More than 0.45g/cm3|
|(3) Nominal pressure:||PN2.5~PN40, PN40~PN320(x 0.1MPa)|
|(4) Material:||SS304, 316L, PP, PTFE, or customized|
|(5)Operating temperature:||-190 ~ +425 °C|
|(6) Process connection:||DN20~DN80/RF/14,DN80~DN250/RF/14|
|A: Al &ABS flap cylinder||B: Al flap plate|
|C: PVC ABS flap cylinder||D: PP&ABS flap cylinder|
|E: AL &LED||F: PP&LED|
|(8) Structure of top chamber:||
2.welding cover with M14*1.5 plug screw
4.flange with M14*1.5 plug screw
5.welding cover with DN20 flange
6.flange with DN20 flange
7.welding cover with air valve
8.flange with air valve
|(9) Structure of bottom chamber:||
2.flange with drain plug screw
3.flange with DN20 welding tube
4.with DN20 flange
5.with needle/ball valve
|Note: Basic type, top mounted type, heat tracing type, LPG specialized type, anti-corrosive type, boiler steam specialized type etc, they have some differences in technical parameter. Different pressure has different flange specification.|
1. Simple structure, good stability and reliability.
2. Independent of medium’s physical and chemical states such as conductivity, dielectric constants, foam etc.
3. Appliable for all kinds of medium environment such as corrosive, toxic and explosive one.
4. Interface measurement or level measurement of 2 kinds of medium with different density.
5. Two-wire 4~20mADC signal output, 0.8’’ or 0.56” LED digital display.
Workshop and Processing
The anti-corrosion type magnetic flap liquid level gauge is easy to show the phenomenon of false liquid level in long-term use. The reasons for forming the false liquid level are as follows:
|1.||First of all, make sure that the liquid phase and the gas phase are all connected|
|2.||Use a magnet to scan the whole process along its appearance, you will be able to understand that it will be corrected.|
|3.||If it is a safe liquid, first release the liquid phase and perform operation 2.|
|4.||If the vapor pressure of the gas phase is large, turn off the gas phase, press the liquid in the pipe back to the storage tank, and perform operation 2. The top-mounted magnetic flap liquid level gauge is suitable for measuring various containers that are not convenient for side-mounted liquid level gauges, especially the liquid level measurement in the public storage tank. It is generally applicable to industries and departments such as petroleum, chemical industry, metallurgy, electric power, light industry and medicine.|
|5.||The external interference signal is too large, the signal obtained by forming the circuit is a fake signal, not a signal measured in practice;|
|6.||The waveguide wire inside the liquid level gauge is defective, for example, it is loose, the seal is not good, the water is rusted, etc., which forms signal distortion;|
|7.||The waveguide device is incorrect and the signal transmission is distorted;|
|8.||The signal processing circuit is defective.|