If your multimeter shows a different reading than the ZK-5KX screen, you can calibrate it: Long-press to enter the settings. Scroll to find SET (calibration mode).
To enter the parameter setting menu (protections), [5, 14]. Use the SW button to scroll through these options: LVP: Input Undervoltage Protection (Default OVP: Output Overvoltage Protection (Default OCP: Output Overcurrent Protection (Default OPP: Overpower Protection (Default OHP: Over-temperature Protection (Default 110∘C110 raised to the composed with power C Calibration Mode zk5kx manual
The ZK5KX manual includes detailed technical specifications, including: If your multimeter shows a different reading than