Phaeton CZL-400 Load Cell Sensor 7KG Weighing Screw-fastened

The CZL-400 is a resistive strain gauge load cell. It outputs a small millivolt (mV) signal proportional to both the applied load and the supplied excitation voltage (typically 3-5V DC). This mV/V signal requires amplification via a dedicated HX711 or instrumentation amplifier module before being read by a microcontroller.

Connect the load cell's four wires (Red: Excitation+, Black: Excitation-, Green: Signal+, White: Signal-) to a compatible amplifier like the HX711 load cell amplifier module. Then, interface the HX711's digital output pins (DT and SCK) to your Arduino. Libraries are available to simplify reading the calibrated weight value.

While the scraped data mentions 1.5V batteries for a complete scale, the load cell itself typically operates best with a 3V to 5V DC excitation voltage. Exceeding 10V is not recommended as it can overheat the strain gauges and cause permanent damage or measurement drift.

Yes, multiple identical load cells can be connected in parallel to a single amplifier to increase total capacity (e.g., four 7kg cells for a ~28kg platform scale). For best accuracy, ensure they are mounted evenly and calibrated together using the amplifier's tare and calibration functions.