SB cantilever type load cell installation points

1. The mounting surface of the base of the sensor should be flat and clean, without any oil film, glue film, etc. The mounting base itself should have sufficient strength and rigidity, which is generally required to be higher than the strength and rigidity of the sensor itself.

2. The load cell should be handled with care, especially the small-capacity sensor made of alloy aluminum elastomer. Any impact or drop may cause great damage to its measurement performance. For a large-capacity load cell, generally speaking, it has a relatively large dead weight, so it is required to use appropriate lifting equipment (such as chain hoists, electric hoists, etc.) when handling and installing.

3. The loading direction of each load cell is determined, and when we use it, we must load the load in this direction. Lateral forces, additional bending moments, and torque forces should be avoided as much as possible.

4. Level adjustment: Level adjustment has two aspects. One is that the installation plane of a single sensor mounting base should be leveled with a level gauge. On the other hand, the mounting surface of the mounting base of multiple sensors should be adjusted to one level as much as possible (using a level), especially if the number of sensors is more than three. This point should be paid more attention to in the weighing system. The main purpose of doing so is to make the load of each sensor basically the same.

5. Try to set up some "baffles" around the load cell, and even cover the sensor with a thin metal plate. This can prevent sundries from contaminating the sensor and certain movable parts, and this "contamination" often makes the movable parts move uncomfortably and affects weighing accuracy.

6. Try to use structural accessories with automatic positioning, such as spherical bearings, joint bearings, positioning fasteners, etc. They can prevent certain lateral forces from acting on the sensor. It should be noted that some lateral forces are not caused by mechanical installation, such as lateral force caused by thermal expansion, lateral force caused by wind, and lateral force caused by vibration of agitator on certain container weighing instruments, which are not caused by mechanical installation. .

7. On some weighing instruments, some accessories must be connected to the scale body. We should make them as soft as possible in the direction of the load axis of the sensor to prevent them from "eating" the true load of the sensor and causing errors.

8. Sensors should use hinged copper wires to form electrical bypasses to protect them from welding currents or lightning strikes.

9. Although the load cell has a certain overload capacity, the load cell should still be prevented from being overloaded during the installation of the weighing system. It should be noted that even a short-term overload may cause damage to the sensor ^. In the installation process, if it is really necessary, you can replace the sensor with a block of the same height as the sensor, and then replace the sensor after ^. In normal operation, the sensor should generally be equipped with mechanical structural parts for overload protection.

10. Whether the system is uncomfortable with exercise can be judged by the following methods. That is to say, add or subtract about one-thousandth of the rated load on the weighing platform to see if the weighing indicator has a reaction. If there is a reaction, it means that the movable part is not "contaminated".

11. If a screw is used to fix the sensor, a certain tightening torque is required, and the screw should have a certain screw depth. Generally speaking, the fixed screw uses a high-strength screw.

12. During the use of the sensor, strong thermal radiation must be avoided, especially one-sided strong thermal radiation.