STC-221 1m waterproof heating cooling sensor digital temperature controller aquarium temperature controller

4.3 Timing setting: ◆In the running state, press the "timing" button, the blue digital tube on the right will display "F6", and the left will display the corresponding timing shutdown time. At this time, press the "▲" key or "▼" key to change this set value , Press the "timing" button again, the blue digital tube on the right will display "F7", and the left will display the corresponding timing power-on time. At this time, press the "▲" key or "▼" key to change the set value, and the setting is complete Then press the "timing" button to save and exit.

6. Function Description 6.1 Refrigeration control (F8=0) ◆After the compressor has passed the delay protection time, when the cabinet temperature is greater than or equal to the control temperature + temperature return difference (F1), the compressor starts; when the cabinet temperature is less than or equal to the control temperature, the compressor stops.

6.2 Heating control (F8=1) ◆After the heater has passed the delay protection time, when the cabinet temperature is less than or equal to the control temperature-temperature return difference value, the heater starts; when the cabinet temperature is greater than or equal to the control temperature, the heater stops.

6.3 Timing control ◆When the controller finishes running the timing output stop time, the timing indicator light will be on and the timing output will be on. When the timing stop time is finished, the timing indicator light will be off, and the timing will stop, and it will run cyclically. ◆Timed start-up time and timed stop time are displayed as countdown.

6.4 Alarm control ◆When cooling or heating is started once and stopped, the high and low temperature alarm function is activated. When the cabinet temperature is higher than or equal to the set high temperature value F9 and the duration exceeds FC, the high temperature alarm is triggered and the temperature flashes; when the cabinet temperature is lower than or equal to the set low temperature value FA and the duration exceeds FC, the low temperature alarm is triggered, the temperature Flashing. ◆When the cabinet temperature sensor fails, "EE" is displayed.

6.5 Switch control ◆Long press the "▼" key for more than 5 seconds, the display "---" means shutdown, and then press the "▼" key again to turn it on.

7. Wiring diagram