How do I connect to a load 4 cell?
If you want the four load cells to measure separate loads, use two HX711, or alternatively a 4-input ADC like the ADS1234. If they are all sharing the same load, as in a typical electronic bathroom scale, just connect them all in parallel to one input.
How many wires does a load cell have?
Depending on the model, the load cells may have a cable with 4 or 6 wires plus the screen. The 6-wire models, in addition to having the terminals of power supply + and power supply – and signal + and signal -, have 2 additional wires called Sense + and Sense – which may also be denominated reference.
How do you know if a wire is load cell?
2. The black wire is normally the negative excitation or negative signal input wire. You can use this as a reference to attempt to determine the remaining wire combinations. The ohm readings for the excitation vary from 350 to 1100 ohms.
How do you identify load cell cables?
A load cell test is performed using a digital multimeter. The digital multimeter is connected between the positive signal wire and the negative signal wire of the load cell. The output between them should be equal or to a value specified in the datasheet. This is the test for load cell output resistance.
What is load cell cable?
Application : Load cells cable are used in multiple load cell weighing systems. Usually the connection is not made at the indicator, but in a separate housing, a so called junction box, located adjacent to the weighing system.
How do you test for a bad load cell?
Physical Checks
- Check if the load cell cable has any obvious signs of damage.
- Check load cell element for any dents, deformation, cracks, rippling of metal, corrosion, and significant wear in the area of loading.
- Do visual check for flatness (for single point and double ended load cells).
What is a load cell simulator?
A load cell simulator is a handy tool during initial setup, particularly of a batching by weight scale. It replaces the load cell(s) in the system allowing the scale technician to simulate various weights that will trigger the outputs setpoints for activating valves, gates, and mixers.