Read Display Characters the FND
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Conotec Temperature Controller Display Uses "FND" Component
The temperature controller display utilizes an "FND" (Fluorescent Numeric Display) component to show information such as temperature, function commands, and error codes.
Examples:
- 29.5℃ (Temperature display)
- O-E (Error code display)
- TYP (Type selection – choose between cooling or heating)
Flexible Numeric Display
An FND is a display device that can show numbers or characters and is commonly referred to as a "seven-segment display."
It’s a component often used in calculators, elevator number panels, and digital clocks.
When I first saw the display on a temperature controller, I couldn’t figure out what some of the characters meant.
I could recognize the numbers, but the English letters? I had to stare at them for a while to figure them out. If you’ve ever had the same thought, I hope this post helps you!
▶FND Display Characters
1) NUMBER
2) ENGLISH
▶Interpreting Controller Function Commands
The controller's FND screen is small, so it can only display up to 3 characters.
As a result, commands are shown using 3-character abbreviations.
▶Error Code
▶Example of Product Name (Displayed during boot-up after power connection)
- Prev2025 Discontinuance Models
- NextFOX-1004N