Technical Parameters:
Temperature control range: -50~120℃
Resolution: -9.9~99.9, 0.1℃, other temperature range 1℃
Temperature measurement accuracy: 0.1 ℃
Control accuracy: 0.1 ℃
Backlash 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=12 20A, 220V 10A.
Environmental requirements: -10~60℃, humidity 20%-85%
Specification size: 79mm*43mm*26mm
Instructions
●Connect the power supply and equipment to supply power to the controller. At this time, the display shows the measured temperature. Press the SET button once, and the temperature of the display will flash. After the setting is completed, press SET to confirm and return. At this time, the controller will automatically switch on and off the relay according to the setting! The thermostat output is a 20A relay, which meets various high-power loads. Connect the control circuit to power the thermostat. At this time, the display shows the ambient temperature.
Status description of indicator light and digital tube
●Indicator light: flashing indicates the delay of cooling or heating start, constant light indicates that the relay is closed
●Digital tube: display LL for open circuit of the sensor, please connect the sensor according to the instructions; display HH for exceeding the measuring range, and the thermostat will forcibly disconnect the relay; display --- for high temperature alarm
Parameter function description
Long press SET for 5 seconds to enter the main menu setting, press +-to switch P0...P6, long press SET or 10 seconds without key action, the controller automatically confirms and returns.
P0 cooling and heating mode
●Long press SET for 5 seconds to display P0, press SET once to set the working mode, press +-to switch [H for heating mode] [C for cooling mode] Press SET once to return, long press SET or 10 seconds without key action. The controller automatically Confirmation is complete.
●In cooling mode: when the measured temperature value is greater than or equal to the temperature set point, the cooling relay is closed and the refrigerator starts; when the measured temperature value is less than or equal to the temperature set point-hysteresis, the cooling relay is disconnected and the refrigerator is turned off.
●In heating mode: when the measured temperature value is less than or equal to the temperature set point, the heating relay is turned on and the heater starts; when the measured temperature value is greater than or equal to the temperature set point + hysteresis, the heating relay is turned off and the heater is turned off.
P1 Hysteresis setting
●Long press SET for 5 seconds to display P0, press ＋－to switch to P1, press SET once to set the hysteresis value, press ＋－ to set the hysteresis to 0.1-15, press SET once to return after completion, long press SET or no for 10 seconds The key action controller automatically confirms the completion.
●In cooling mode: when the temperature measurement value is greater than or equal to the set value, the relay is closed, and the refrigerator starts; when the temperature measurement value is less than or equal to the set value-return difference, the relay is disconnected and the refrigerator is turned off.
●For example, when the environment is 30°C, the set value is 25°C, and the hysteresis is set to 2°C. After power-on, the relay will close and the refrigerator will start. When the temperature reaches 23°C, the relay will open and the refrigerator will be closed. The temperature starts to rise after the disconnection. When it returns to the set value of 25°C, the relay closes and the refrigerator starts again, so that the temperature is controlled not to be higher than 25°C through repeated cycles.
●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 + return difference value, the relay is turned off and the heater is turned off.
●For example, when the environment is 10°C, the set value is 25°C, and the hysteresis is set to 2°C. After power-on, the relay will close and the heater will start. When the temperature reaches 27°C, the relay will open and the heater will turn off. The cut-off temperature begins to drop. When it drops to the set value of 25°C, the relay closes and the heater starts again, so that the temperature is not lower than 25°C through repeated cycles.
P2 Maximum temperature setting upper limit
●In order to avoid the danger of excessively high set temperature caused by the misoperation of others, this thermostat has the highest set upper limit function, which limits the setting range of the highest temperature set point controlled by the thermostat.
●Long press 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 temperature that can be set, the maximum value is 110, press SET once to return after finishing, long press SET or The controller automatically confirms the completion of no key action for 10 seconds.
●For example: set to 60. The temperature set point can only be set up to 60℃. If you want a higher temperature set point to expand the temperature range, you need to adjust the upper limit set value first.
P3 Minimum temperature setting lower limit
●In order to avoid other people's misoperation and cause ice blockage when the temperature is too low, this thermostat has the function of the lowest setting upper and lower limit, which limits the setting range of the lowest temperature set point controlled by the thermostat.
●Long press SET for 5 seconds to display P0, press ＋－to switch to P3, press SET once to set the lowest limit, press ＋－ to set the lowest settable temperature, the lowest value is -50, press SET once to return after completion, long press SET Or the controller will automatically confirm the completion of no key action for 10 seconds.
●For example: set to 2 The minimum temperature set point can only be set to 2°C. If you want a lower temperature set point to expand the temperature range, you need to adjust the lower limit set value first.
P4 temperature correction
●When the measured temperature is deviated from the standard temperature or due to the special needs of the user's hardware, this function can be used to calibrate. The temperature after correction = the temperature before correction + the correction value. The effective range is -7.0~7.0.
●Long press SET for 5 seconds to display P0, press ＋－to switch to P4, press SET once to calibrate, press ＋－ to set the correction value, press SET once to return after completion, long press SET or no key action for 10 seconds, the controller automatically confirms carry out.
●For example, the normal display is 25 degrees; when the temperature is corrected to 0, it displays 25 degrees; when the temperature is corrected to 1.5, it displays 26.5 degrees; when the temperature is corrected to -1.5, it displays 23.5.
P5 Delay start time (unit: minutes)
●When there is a delay in the work of the refrigerator or heater, the delay function can be turned on to protect the life of the equipment.
●Long press SET for 5 seconds to display P0, press ＋－to switch to P5, press SET once to set the delay start time in minutes, press ＋－ to set 0-10 minutes, press SET once to return after finishing, long press SET or 10 seconds No button action controller automatically confirms completion
●In cooling mode: when power is on for the first time, if the current temperature is greater than or equal to the set value, the chiller will not start cooling immediately, and it will start after the set delay time.
●In heating mode: the first time the power is turned on, if the current temperature is less than or equal to the set value, the heater will not start heating immediately, and it will start after the set delay time.
●When the stop time between two consecutive starts of the refrigerator or heater is greater than the set value of the delayed start time, the refrigerator starts immediately.
When the stop time interval between two consecutive starts of the refrigerator or heater is less than the set value of the delay start time, the device can be started after the set delay start time of the refrigerator has been run after restarting. The delay time is calculated from the moment of shutdown.
●For example, in the cooling state, the delay is set to 5 minutes. After turning on the refrigerator, the refrigerator will start to delay. After 5 minutes, the refrigerator will be turned on. When the required temperature is reached, the refrigerator will stop, and the timer will start at this time. When the timer of the next refrigerator start is completed Work immediately, the unfinished timing will not work until the timing is over, the LED indicator flashes during the delay.
●When the delay start is set to 0, the delay function is turned off.
How to save settings
●If you want to save the set data, set P7 to ON when the temperature is set and the power is not turned on. In this way, the last setting will be retained when the power is turned off.
Reset
●The internal settings of the thermostat are chaotic due to some human reasons. It takes 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 shutdown state, press + and-at the same time Press the key, then turn on, all the above parameters are restored to the factory settings.
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