Name: Ketotek STC-1000 Temperature Controller
Brand: Ketotek

Question 1

How do I restore the factory settings?

Accepted Answer

Press any key once an error (Er) appears on screen to reset and restore all parameter values to default.

Question 2

What power supply options are available for the STC-1000?

Accepted Answer

The STC-1000 can be powered by either AC 90~250V at 50/60Hz or DC 12V/DC 24V. Consult a professional technician for proper wiring based on your specific application.

Question 3

How do I check the current parameter settings on the display?

Accepted Answer

In normal working status, the screen displays the real-time temperature. Press the designated button to display the set temperature value, press it again to show the difference value, and press the back button to return to the normal display.

Question 4

How do I power on and off the STC-1000?

Accepted Answer

Hold the back button for a few seconds to power off the device. Hold the back button for 3 seconds to power on the device.

Question 5

What are the physical dimensions and mounting requirements for the STC-1000?

Accepted Answer

The device dimensions are 75mm (L) x 34mm (W) x 85mm (D), with a mounting size of 71mm (L) x 29mm (W). The power consumption is ≤3W, and the operating ambient temperature range is -20°C to 70°C with humidity between 20% to 85% RH.

Question 6

How do I set the temperature on the STC-1000?

Accepted Answer

In normal working status, press and hold the S button for 3 seconds to enter parameter setting mode. Use the buttons () to select F1 (temperature set value) and adjust it using or . The default temperature set value is 10℃, with a range of -50～99℃.

Question 7

What does the 'cool' indicator light mean?

Accepted Answer

'Cool' light indicates that refrigeration has started. It flashes when the controller is in compressor delay protect status. The light turns off and the cooler stops working when RT (real time temperature) falls below ST.

Question 8

What causes the 'Er' error display?

Accepted Answer

The screen displays ‘Er’ if there is an error during parameter saving or if an internal self-check detects issues upon electrification. Press any key to reset and restore default values.

Question 9

How can I adjust the compressor delay time?

Accepted Answer

Press and hold S for 3 seconds to enter set parameter mode, select F3 (compressor delay time) using or buttons. Adjust the setting value to minutes between 1 and 10.

Question 10

What is the difference value setting for?

Accepted Answer

F2 represents the 'Return Difference' setting, which sets a margin above and below the temperature set point where the heating or cooling action begins. The default value is 3℃ with adjustable range from 1 to 10℃.

Question 11

Where can I obtain spare parts or technical support?

Accepted Answer

Contact Atfinger Technology Co.,Ltd. for help with spare parts, technical inquiries, or customer service matters.

Question 12

Can I change the device's calibration temperature?

Accepted Answer

Yes, enter parameter setting mode by pressing S for 3 seconds and select F4 (temperature calibration value). Adjust this value within the range of -10℃ to 10℃.

Question 13

How do I power off the STC-1000?

Accepted Answer

Hold the button for 3 seconds during normal working status. This action powers off the device; hold again to turn it back on.

Question 14

What happens if a sensor error occurs?

Accepted Answer

If there's an issue with the measurement input (NTC sensor, 10K Ω 0.5% accuracy), the system will delay for one minute and then set off an alarm.

Question 15

What should I do if the screen displays 'Er.' when I power on the device?

Accepted Answer

The 'Er.' display indicates that an error has been detected during the system's self-check on startup. Press any key to restore the default values and enter normal working mode. It is advisable to reset the parameter values under this condition.

Question 16

How do I enter parameter setting mode on the STC-1000?

Accepted Answer

In normal working status, press the 'S' button for 3 seconds to enter the parameter setting mode. You can then use the designated buttons to navigate through the menu codes (F1 to F4) and adjust the parameter values as needed.

Question 17

What happens if I don't save my parameter changes within a certain time?

Accepted Answer

If no key operation occurs within 30 seconds after making parameter changes, the system will not save the modified parameters, and the screen will revert to displaying the normal temperature. You must press and release the back button to save changes before the 30-second timeout.

Question 18

How does the heating mode work on this temperature controller?

Accepted Answer

Heating starts when the real-time temperature (RT) is less than or equal to the set temperature (ST) minus the difference value (F2), and the heating indicator light turns on. When RT ≥ ST, the heating indicator turns off and the heating relay disconnects, stopping the heater.

Question 19

What is the refrigerating control output delay protection feature?

Accepted Answer

This feature prevents compressor damage by introducing a delay before the cooling output is activated, allowing the system to stabilize. During this protection period, the cooling indicator light will flash to indicate that the refrigerating equipment is under compressor delay protection.

Question 20

What temperature control range does the STC-1000 support?

Accepted Answer

The Ketotek STC-1000 supports a temperature control range of -50~99°C with an accuracy of ±1°C for temperatures between -50°C to 70°C. The resolution is 0.1°C.

Ketotek STC-1000 Temperature Controller

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