Module CAP10CNC USER GUIDE FOR MODULE CAP10CNC FEB-2020 This document is applied for the following products 1. Module CAP10CNC 2. Specification Output 4-20mA output (with 250 ohms precision resistor), or RS485/ModbusRTU Power supply 8..50VDC Consumption max 35mA Capacitance range 0-400 pF Working temperature -40 oC .. + 85 oC 3. Instructions for configuration 3.1 Wiring Please wiring as shown below: 3.2 Soldering wire connected to input C signal Solder the signal C to the middle point of the circuit. Choose 1 of 3 points on the edge of the circuit (1 or 2 or 3) to connect GND. 3.3 Calibration Zero: Power the circuit, press the button 3 times consecutively then wait for the LED to blink continuously, we will press one more time. Disconnect power. Full-scale: Power the circuit, press the button 3 times consecutively then wait for the LED to blink continuously, we will hold the button, when the light is off we take our hands off.