How to use the Inline Load Cells?

The most common tension sensor Threaded In Line Load Cell is the resistance strain type, which is a sturdy, durable and reliable sensor product. In order to ensure its accuracy, there are still some problems that need to be paid attention to in the process of installation and use. Here is a brief introduction to you:

1.The tension sensor Tension Links should be handled with care, especially for the small-capacity sensor Inline Load Cell using aluminum alloy material as the elastic body. Any shock or drop caused by vibration is likely to cause a large output error.

2.When designing the loading device and installing it, it should be ensured that the line of action of the loading force coincides with the force axis of the tension sensor Tension and Compression Load Cell, so as to minimize the influence of the inclined load and the eccentric load.

3.In terms of level adjustment. If you are using a single tension sensor miniature Inline Load Cell, the mounting plane of the base should be adjusted until it is level with a spirit level; if it is a situation where multiple sensors are measuring at the same time, the mounting surface of their base should be kept on the same level as possible. The purpose of this The main purpose is to ensure that the force of each sensor is basically consistent.

4.Determine the rated load of the sensor In-Line Threaded Force Sensor used according to the range of the tension sensor Miniature Threaded In Line Load Cells in this description.

5.The mounting surface of the base of the sensor Female Threaded Miniature Load Cell should be as flat and clean as possible, without any oil stains or film. The mounting base itself should have sufficient strength and rigidity, usually higher than the strength and rigidity of the sensor Threaded Miniature Load Cell itself.

6. The sensor In-line load cell housing, protective cover, and bow/wire joints are all sealed, and households are not allowed to open them.

7. In order to prevent chemical corrosion, it is advisable to coat the outer surface of the tension sensor In-line force sensor with terroir when installing. Avoid direct sunlight and use on sites with drastic changes in ambient temperature. 8. Protective or mitigating devices should be installed when it is unavoidable.

9. In order to prevent the high current from directly passing through the sensor Inline Tension Link Load Cell body and damaging the sensor, it is forbidden to conduct electric welding after the sensor is installed. 10. Add a bypass made of copper braided wire at both ends of the tension sensor Rod End Load Cells loading device.

11. The cable should not be lengthened by itself. When it is really necessary to lengthen, the joint should be soldered and moisture-proof sealant should be added.

12. It is best to use some baffles around the tension sensor In Line Threaded Rod Load Cell to cover the sensor Threaded Rod Load Cell. The purpose of this is to prevent debris from falling into the moving part of the sensor threaded rod end load cell, affecting its measurement accuracy.

13.The cable of the sensor Miniature In-Line Load Cell should be far away from the strong power supply line or the place with pulse wave. When it is impossible to avoid competition, the cable of the tension sensor should be passed into the iron pipe alone, and the connection distance should be shortened as much as possible.

14.Determine the rated load of the sensor Fastener Torque Tension Load Cell used according to the range of the tension sensor in this description. Although the tension sensor itself has a certain overload capacity, this situation should be avoided as much as possible during installation and use. Sometimes a short-term overload may cause permanent damage to the sensor in-line force sensor load cell.

15.In high-precision applications, the tension sensor tensile type load cell and instrument should be used after preheating for 30 minutes.

Principle of use of In Line Load Cells:

Industry generally needs to measure various non-electrical physical quantities, such as temperature, pressure, speed, angle, etc., which need to be converted into analog electrical signals before they can be transmitted to a control room or display device hundreds of meters away. This device that converts physical quantities into electrical signals is called a tension and pressure sensor In Line Type Load Cell. The most widely used in the industry is to use 4-20mA current to transmit analog quantities.

The reason for using the current signal is that it is not easy to be interfered. And the internal resistance of the current source is infinite, and the resistance of the wire in series in the loop does not affect the accuracy, and it can transmit hundreds of meters on the ordinary twisted pair. The upper limit is 20mA because of explosion-proof requirements: the spark energy generated by the current on and off of 20mA is not enough to burn gas. The reason why the lower limit is not set to 0mA is to be able to detect disconnection: it will not be lower than 4mA during normal operation. When the transmission line is broken due to a fault, the loop current drops to 0. 2mA is often used as the disconnection alarm value.

The current transmitter converts the physical quantity into a 4-20mA current output, which must be powered by an external power source. The most typical is that the transmitter needs two power cords, plus two current output lines, a total of 4 wires must be connected, which is called a four-wire transmitter. Of course, the current output can be shared with the power supply-one wire (common VCC or GND), and one wire can be saved, which is called a three-wire pull pressure sensor Threaded Tension and Compression Load Cell.

In fact, you may have noticed that the 4-20mA current itself can power the transmitter. The pull pressure sensor Tension compression load cell is equivalent to a special load in the circuit. The special feature is that the current consumption of the pull pressure sensor varies between 4 and 20 mA according to the sensor In line load cell output. The display instrument only needs to be stringed in the circuit. This kind of tension and pressure sensor Miniature Inline Load Cells only needs two external wires, so it is called a two-wire tension and pressure sensor Compression Tension Load Cells. The standard lower limit of the industrial current loop is 4mA, so as long as it is within the range, the pull pressure sensor has at least 4mA power supply. This makes it possible to design a two-wire tension pressure sensor In-line Threaded Force Transducer.

In industrial applications, the measurement point is generally on site, while the display device or control device is generally in the control room or control cabinet. The distance between the two may be tens to hundreds of meters. Calculated at a distance of one hundred meters, omitting 2 wires means that the cost is reduced by nearly one hundred yuan! Therefore, the two-wire tension pressure sensor Miniature Threaded In Line Load Cell must be the first choice in application.