Tag: load cell

In our load cell product pages, when we introducing the load cells, we often say that you can buy a transmitter/amplifier with a customized output signal (0-5V, 0-10V, 4-20mA) to output standard signal to PLC, DCS and other control systems. Then someone will ask us how to connect load cell to plc. Now today we will explain the connection methods of load cell in details. When forming the weighing and batching control system with PLC, there are four connection methods for load cell.

Installation quality of load cells is decided by horizontal and vertical placement and height adjustment. In many use scenarios of electronic weighing instruments, it is observed that some weighing instruments are not bought from one professional manufacturer but from different manufacturers. Due to a lack of overall consideration, these weighing instruments might easily encounter different problems, including installation process, requirements of bolts and place limiting stopper.

Pancake load cell is also known as low profile load cell, because it has a low profile design and it looks like a pancake. On the other hand, pancake load cell can bear both tension and compression force. So it is also a tension and compression load cell that is widely used for platform scale, truck scale, rail weighbridge and tension tester.

The load cell has a certain overload capacity, but it shall still be prevented from overloading in installation. It should be notified that even a short-term overload can still cause permanent damage to the sensor. During the installation, a pad with the same height of the sensor could be firstly used instead if necessary, then replace the pad with the sensor. In normal operation, the sensor should generally be equipped with mechanical structure for overload protection. If the sensor is fixed with screws, the screw should have a certain fastening torque and screwing thread depth. Generally, high strength screws should be used.

ATO load cells have low capacity and high capacity, high accuracy, good output symmetry and high eccentric load resistant. Load cells can be applied for batching scale, crane scales, rail weighbridge, hopper weigher, button tester, force gauge and other special weighing instruments. Here is an ATO load cell price list for your reference. For more products information, please check the directory of load cells.

Load cell is based on the principle that resistance changes when the resistance strain gauge pasting on the surface of elastomer is forced deformation. Load cell converts the change of resistance to mV signal so as to complete the process of converting external force into electrical signal. According to its principle and structure, the fault of strain gauge load cell is often caused by some human or natural factors.

The calibration of load cell and digital display controller is mainly to confirm the weighing signal of zero point and full range of the load cell. That is to say, telling the digital display controller what are zero weight signal and full range weight signal received from the load cell. In this way, the digital display controller will display the value according to the detected weight, or export the matching weight signal to the PLC/DCS control system.