Advantech 8Thermocouple Modbus RS-485 Remote I/O ADAM-4018+-F

The Thermocouple Input Module with Modbus, part of the ADAM-4000 Series, features eight differential channels capable of handling various thermocouple types, including J, K, T, R, S, and B, with temperature ranges from -100¬8C to 1,800¬8C depending on the type. It supports input types of thermocouples, mA, and voltage, with a current rating of 20 mA and an input range of ¬±20 mA and 4-20 mA. The module operates with a power consumption of 0.8 W at 24 VDC and includes a watchdog timer for reliability. The device supports ASCII command and Modbus/RTU protocols, allowing for easy integration into existing systems. It has a high input impedance of 20 M,Ѷ for voltage and 120 ,Ѷ for current, ensuring minimal loading on the input signals. The accuracy is ¬±0.1% for voltage mode and ¬±0.2% for current mode, with a resolution of 16 bits and a sampling rate of 10 samples per second. The module is designed for a wide operating temperature range of -10¬8C to 70¬8C and can withstand humidity levels of 5% to 95% RH. It also features built-in protection against overvoltage and ESD, making it suitable for various industrial applications.