The crane overload limiter is composed of a weight sensor and a control instrument. It monitors in real time whether the gantry crane, crane, hoist, electric hoist and other equipment are overloaded during the lifting process, and takes action against overload. In order to better meet customer usage requirements, it is necessary to actually understand customer requirements before the production task process to achieve a better usage experience. Here, a brief introduction to its purchasing considerations.

Taking the Weite Electronics WTZ series overload limiter as an example, the purchasing considerations are as follows:

1. Regarding the power supply voltage of the overload limiter instrument, select DC24V, AC220V, or AC380V. Before purchasing, confirm the power supply of the instrument for normal use to avoid burning out the instrument due to inconsistent voltage during later use.

2. Control requirements: Several types of control are required, such as overloading, etc. Different instruments can satisfy different controls. The corresponding model must be selected according to the control requirements. The control relay needs to give which state (normally open or normally closed); Expand applications, such as RS485, 4-20MA output, etc.

3. Sensor selection: According to different installation methods on site, select the corresponding sensor type, and use the corresponding formula to calculate the sensor size based on the actual weight and magnification.

4. Sensor cable length: Provide the distance from the sensor to the cab to determine the cable length.