Models & Details for “High precision digital temperature controller DC12V DC24V AC110~220V”
Detailed pictures
Specifications and Details
Temperature control range: -50 ~ 120 ℃ Resolution: 0.1 ℃ at -9.9 ~ 99.9, other temperature 1 ℃ Temperature measurement accuracy: 0.1 ℃ Control accuracy: 0.1 ℃ Hysteresis accuracy: 0.1 ℃ Refresh rate: 0.5 S Input power: DC 12V Measurement input: NTC (10K 0.5%) waterproof sensor Output: 1 relay output, capacity = 20A Environmental requirements: -10 ~ 60 ℃, humidity 20% -85% Specifications: 79mm * 43mm * 26mm
Wiring method
How to operate this “High precision digital temperature controller”
Instructions
Connect the power supply and equipment to power the controller. At this time, the temperature is displayed. Press the SET key once, the display temperature flashes, and press +-to set the required temperature (press +-to quickly rise and fall) After finishing, press SET to confirm and return. At this time, the controller automatically executes the relay on and off according to the setting! The output of the thermostat is a 20A relay, which can meet various high-power loads. After connecting the control circuit, the thermostat can be powered. At this time, the display shows the ambient temperature.
LED, digital tube and buzzer status description
Indicator light: flashing means delay of cooling or heating start, steady light means the relay is closed
Digital tube: display LL is open circuit of the sensor, please connect the sensor according to the instructions; display HH is out of the measurement range, the temperature controller will forcibly open the relay; display — high temperature alarm
Parameter function description
(A copy of the instruction manual is attached to the product, which explains the parameter settings in detail)
Press and hold SET for 5 seconds to enter the main menu settings, press +-to switch between P0 … P6, and press and hold SET or 10 seconds without a button to automatically confirm the return of the controller.
P0 Cooling and heating mode
Press and hold SET for 5 seconds to display P0, press SET once to set the working mode, press +-to switch [H is heating mode] [C is cooling mode] Press SET once to return, long press SET or 10 seconds without a button, the controller automatically confirms carry out.
In cooling mode: When the temperature measurement value ≥ temperature set point, the refrigeration relay is activated and the refrigerator starts; when the temperature measurement value ≤ temperature set point-hysteresis, the refrigeration relay turns off and the refrigerator turns off.
In heating mode: When the temperature measurement value ≤ temperature set point, the heating relay is activated and the heater starts; when the temperature measurement value ≥ temperature set point + hysteresis, the heating relay is turned off and the heater is turned off.
P1 Hysteresis Setting
Press and hold SET for 5 seconds to display P0, press +-to switch to P1, press SET once to set the return difference, press +-to set the return difference to 0.1-15, press SET once to return, and press SET for 10 seconds or no button The motion controller automatically confirms completion.
In cooling mode: When the temperature measurement value ≥ the set value, the relay is activated, and the refrigerator starts; when the temperature measurement value ≤ the set value-the return difference value, the relay is turned off and the refrigerator is turned off.
For example, the environment is 30 ° C, the set value is 25 ° C, and the hysteresis is set to 2 ° C. After the power is turned on, the relay closes the refrigerator and starts. When the cooling reaches 23 ° C, the relay opens the refrigerator and closes. The opening temperature starts to rise. When the temperature rises to the set value of 25 ° C, the relay closes the refrigerator and starts again. In this way, the cycle is repeatedly controlled to control the temperature not higher than 25 ° C.
In heating mode: When the temperature measurement value is less than or equal to the set value, the relay is turned on and the heater starts; when the temperature measurement value is greater than or equal to the set value + hysteresis value, the relay is turned off and the heater is turned off.
For example, the environment is 10 ℃, the set value is 25 ℃, and the hysteresis is set to 2 ℃. After the power is turned on, the relay closes the heater and starts. When it is heated to 27 ° C, the relay is turned off and the heater is turned off. The opening temperature starts to drop. When it drops to the set value of 25 ° C, the relay closes the heater and starts again. In this way, the cycle is repeatedly controlled to control the temperature to not less than 25 ° C.
P2 Highest temperature setting upper limit
In order to avoid the danger of excessive setting temperature caused by misoperation by others, this thermostat has a maximum setting upper limit function, which limits the setting range of the highest temperature set point controlled by the thermostat.
Press and hold SET for 5 seconds to display P0, press +-to switch to P2, press SET once to set the upper limit, press +-to set the highest settable temperature, the maximum value is 110, press SET once to return, and press and hold SET or 10 The controller will automatically confirm the completion of the buttonless operation in seconds.
For example: Set to 60. The temperature set point can only be set to 60 ° C. If the temperature set point is to be increased, the temperature range needs to be expanded. You need to adjust the upper limit first.
P3 Lowest temperature setting lower limit
In order to avoid ice blocking caused by low temperature caused by misoperation by others, this thermostat has a minimum setting upper and lower limit function, which limits the setting range of the minimum temperature set point controlled by the thermostat.
Press and hold SET for 5 seconds to display P0, press +-to switch to P3, press SET once to set the lower limit, press +-to set the lowest settable temperature, the lowest value is -50, press SET once to return, and press SET or The controller will automatically confirm the completion of the buttonless action for 10 seconds.
For example: set to 2 and the minimum temperature setpoint can only be set to 2 ° C. If the temperature setpoint is lower and the temperature range is expanded, you need to adjust the lower limit first.
P4 temperature correction
When there is a deviation between the measured temperature and the standard temperature or due to the special needs of the user’s hardware, this function can be used for calibration. The temperature after calibration = temperature before calibration + valid range of calibration value is -7.0 ~ 7.0.
Press and hold SET for 5 seconds to display P0, press +-to switch to P4, press SET once to correct, press +-to set the correction value, press SET once to return, press and hold SET or press the button for 10 seconds to confirm the completion automatically. .
For example, the normal display is 25 degrees; when the temperature correction is 0, 25 degrees is displayed; when the temperature correction is 1.5, 26.5 degrees is displayed; when the temperature is -1.5, 23.5 is displayed.
P5 Delay start time (unit: minute)
When the refrigerator or heater requires a delay, the delay function can be turned on to protect the life of the equipment.
Press and hold SET for 5 seconds to display P0, press +-to switch to P5, press SET once to set the delay start time unit is minutes, press +-to set 0-10 minutes, press SET once to return, press and hold SET or 10 seconds No button action controller automatically confirms completion
In cooling mode: The first time the power is turned on, if the current temperature ≥ the set value, the refrigerator will not start cooling immediately, and it will start after a set delay time.
In heating mode: For the first time, if the current temperature is less than the set value, the heater will not start heating immediately, and it needs to start after a set delay time.
When the shutdown time between two start-ups of the refrigerator or heater is greater than the delay start time set value, the refrigerator starts immediately.
When the shutdown interval between two start-ups of the refrigerator or heater is less than the set value of the delayed start time, the device can be started only after the restart of the refrigerator is completed after the delayed start time of the refrigerator has been set. The delay time is calculated from the moment of shutdown.
For example, in the cooling state, the delay is set to 5 minutes. After the start of the refrigerator, the refrigerator starts to delay. When the refrigerator is turned on after 5 minutes, the refrigerator will stop when it reaches the required temperature. At this time, the timer will start. Work, incomplete timing must wait for the timing to finish before working, the LED indicator flashes during the delay.
When the delay start is set to 0, the delay function is turned off.
Reset
Due to some artificial reasons, the internal settings of the thermostat are confusing. It takes a long time to set one by one. At this time, you can use this function to restore the factory settings. The specific method is: in the off state, press and hold the + and-buttons at the same time. , And then power on, all the above parameters are restored to factory settings.
How to purchase “High precision digital temperature controller”
The item is available for retail and wholesale;
The place of origin is in China,when you buy one or two,please consider freight(by air or by sea) into the cost;
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