4 vs Nellin controllers

4-20 Temperature Calculator is a practical tool for engineers, technicians, and field service professionals working with 4-20 mA transmitters. Use it to quickly convert: • 4-20 mA to temperature • Temperature to 4-20 mA The app helps you work faster in the field by giving you a simple and accurate way to check transmitter scaling, verify loop values, and troubleshoot signal readings. Key features: • Two-way conversion between current and temperature • Custom min/max process range • Support for negative temperature ranges • Celsius and Fahrenheit input/output • Fast, clean interface for everyday use • Useful for HVAC, process control, maintenance, and commissioning work Whether you are calibrating a transmitter, checking a loop, or validating process values, 4-20 Temperature Calculator gives you the numbers you need in seconds.

Nellin lets you set up and monitor kiln firings from your phone. The app connects to your kiln controller over the local network and keeps the essential firing data on one screen. Track current and target temperature, program stage, and heating progress. Select firing programs, adjust controller settings, and receive alerts when a program finishes or the device needs attention. The app also includes maintenance guidance, reference information, and a library of useful firing profiles. Initial setup uses the controller's access point; afterward, the app discovers the device on your local network. Your phone and controller must be connected to the same local network for control. Available features may depend on the controller model and firmware version.