F4-08THM-J

About the F4-08THM-J

F4-08THM-J is a thermocouple input module developed by Automation Direct for the DirectLogic 405 series; this module is capable of interfacing with DL405 logic controllers and peripheral devices. It connects to external devices, such as a CPU, and converts incoming thermocouple signals into Celsius or Fahrenheit direct temperature readings. Type J inputs are the only type accepted by this module. Type J readings range from -190 to 760°C or -310 to 1400°F. Incoming signals are converted using the 16-bit resolution, resulting in precise and accurate measurements.

All incoming data and calculations are complete and require no extra scaling by the user. These data conversions are based on information from the National Institute of Standards and Technology (NIST). Measurements provided by F4-08THM-J are kept precise using many integrated system features. Automatic cold junction compensation (CJC) is featured, as are thermocouple linearization and digital filtering. The eight module channels are fault-protected inputs, able to accept ±50 VDC. An external power supply of 18 to 26.4 VDC is required.

Following all installation and storage parameters will preserve the integrity of the module. Though F4-08THM-J can monitor extreme temperatures, it cannot be housed in conditions outside the acceptable range. When in use, ambient temperatures can safely fall between 0°C and 60°C, or 32°F and 140°F. Storage temperatures should also be monitored to fall no lower than -20°C, or -4°F, and raise no higher than 70°C, or 158°F. Refer to the series manual and device datasheet for all installation and wiring instructions. 

The F4-08THM-J can be installed into any of the CPU slots; it is wise to examine the confirmation if using a DL430 CPU to ensure that all configurations are correct to work with the F4-08THM-J unit.