Knowledge base
Controller FAQ
Answers to common questions about temperature controller setup, sensor input types, alarms and output modes.
How to Set PT100 Decimal Display and Hysteresis in TCN4 Temperature Controllers
This article explains how to enable decimal display for PT100 sensors and set hysteresis (HY) on TCN4 temperature controllers. It offers a clear step-by-step guide to improve accuracy and ensure stable ON/OFF temperature control in industrial applications.
Read guide FAQ · 2025-05-22What's the Difference Between Zero-Crossing and Random Turn-On Solid State Relays?
This blog explains the core differences between zero-crossing and random turn-on SSRs, including switching behavior, EMI, and application suitability.
Read guide FAQ · 2025-05-21TCN4 Controller: How to Set Input Type to PT100 (Video Tutorial)
This blog shows how to configure a TCN4 temperature controller to accept PT100 RTD input. Includes a video tutorial and step-by-step instructions.
Read guide FAQ · 2025-04-24How to Use the TC3-401T Front Panel for Temperature and Time Control
This blog walks you through the TC3-401T temperature timer controller’s front panel, explaining each function key, dual display mode, and how to adjust temperature and time settings.
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