1,100% complete machine patch, wave soldering, stable performance, good consistency 2, embedded central processor chip (MCU), more intelligent, lower power consumption 3, power off settings Automatic memory (MCU built-in EEPROM memory unit) 4, the control accuracy of 0.1 degrees Celsius 5, hysteresis 0.1 set, can control the decimal (0.1-15.0)
Second, the technical parameters
Temperature control range: -50 ~ 110 ℃ Resolution: -9.9 ~ 99.9 when 0.1 ℃ other temperature 1 ℃ Temperature measurement accuracy: 0.1 ℃ Control accuracy: 0.1 ℃ Hysteresis accuracy: 0.1 ℃ Refresh frequency: 0.5 S Input power: DC 5V, DC 12V, DC 24V Measurement input: NTC (10K 0.5%) Waterproof sensor Output: 1 relay output, capacity = 20A 125VAC, 20A 14VDC Environmental requirements: -10 ~ 60 ℃ Humidity 20% -85% Specifications Size: 48.5 * 40mm Machine power consumption: quiescent current: ≤ 10MA pull current: ≤ 65MA
Third, use the method
Connect the power supply and equipment, you can power the controller, this time to display the measured temperature, press the SET button once, the display temperature flashing, press + - to set the required temperature (press + - can quickly lift) set Press SET to confirm the return after the completion of the controller at this time by the automatic implementation of the relay off! The thermostat output for the 20A relay, to meet a variety of high-power load, connect the control circuit, you can supply the thermostat, this time the display shows the ambient temperature, Fourth, the indicator light, digital tube and buzzer status description Indicator light: flashing indicates a cooling or heating start delay, indicating that the relay is closed Digital tube: display LL for the sensor open circuit, please follow the instructions to connect the sensor; display HH beyond the measurement range thermostat will force the disconnect relay; display --- for high temperature alarm
5, the parameters of functional description
Press and hold the SET for 5 seconds to enter the main menu. Press + - toggle P0 ... P6, press and hold the SET or 10 seconds without the key. The controller automatically returns.
P0 refrigeration, heating mode: Press SET for 5 seconds to display P0, press SET once to set the working mode, press + - toggle [H for heating mode] [C for cooling mode] Press SET once to return, long press SET or 10 seconds No key action controller automatically confirm carry out. In the cooling mode: When the temperature measurement value ≥ temperature set point, the refrigerant relay pulls, the refrigerator starts; when the temperature measurement value ≤ temperature set point - hysteresis, the refrigeration relay is disconnected and the chiller is closed. In the heating mode: When the temperature measurement value ≤ temperature set point, the heating relay pulls, the heater starts; when the temperature measurement value ≥ temperature set point + hysteresis, the heating relay is disconnected and the heater is closed.
P1 hysteresis setting: Press SET for 5 seconds to display P0, press + to switch to P1, press SET once to set the hysteresis, press + - to set the hysteresis to 0.1-15, press SET once, press SET or 10 seconds without button Action controller automatically confirms completion. In the cooling mode: When the temperature measurement value ≥ set value, the relay pulls up, the chiller starts; when the temperature measurement value ≤ set value - hysteresis value, the relay is disconnected and the chiller is closed. For example, the environment is 30 ℃ set value of 25 ℃, the hysteresis is set to 2 ℃, after the relay closed the refrigerator to start, when cooled to 23 ℃, the relay off the refrigerator closed, this time because the refrigerator has been broken When the temperature starts to rise, when the rise to the set value of 25 ℃, the relay closed the refrigerator to start again, so repeatedly control the temperature is not higher than 25 ℃. In the heating mode: When the temperature measurement value ≤ set value, the relay pull, the heater starts; when the temperature measurement ≥ set value + hysteresis value, the relay is off, the heater is turned off. For example, the environment is 10 ℃ set value of 25 ℃, the hysteresis is set to 2 ℃, after the relay closed heater start, when heated to 27 ℃, the relay off the heater off, this time because the heater has been broken The temperature begins to drop, and when it falls to the set value of 25 ° C, the relay closes the heater to start again, so that the cycle control temperature is not lower than 25 ° C.
P2 maximum temperature setting upper limit: This thermostat has the highest setting upper limit function, which limits the setting range of the maximum temperature set point controlled by the thermostat in order to avoid the risk of excessive operation. Press and hold the SET to set the maximum setting. Seconds without key action The controller automatically confirms the completion. For example: Set to 60 Temperature Set Point Max can only be set to 60 ° C If you want to set the temperature setting point higher temperature range, you need to adjust the upper limit of the set value.
P3 minimum temperature setting lower limit: In order to avoid misoperation of others caused by the temperature is too low to occur ice block, the thermostat has a minimum set of upper and lower limits function, limiting the temperature control of the minimum temperature set point set range. Press SET for 5 seconds to display P0, press + to switch to P3, press SET once to set the minimum lower limit, press + - to set the lowest settable temperature, the lowest value is -50, press SET once to finish, press SET or 10 seconds without key action The controller automatically confirms the completion. For example: set to 2 temperature set point can only be set to a minimum of 2 ℃ If you want to set the temperature lower temperature range, you need to adjust the lower limit of the set value. P4 temperature correction: When the measured temperature and standard temperature deviation or because the user hardware has special needs, you can use this function correction, corrected temperature = before correction temperature + correction value of the effective range of -7.0 ~ 7.0. Press 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 SET or 10 seconds without key action. The For example, the normal display is 25 degrees; 25 degrees when the temperature correction is 0; 26.5 degrees when the temperature is corrected to 1.5; 23.5 when the temperature is corrected to -1.5.
P5 delay start time (unit: minutes): When the cooler or heater work delay required, you can turn on the delay function to protect the equipment life. Press 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 points, press SET once to finish, press SET or 10 seconds No key action The controller automatically confirms completion In the cooling mode: the first power, if the current temperature ≥ set value, the refrigerator will not immediately start the cooling, you need to run the set delay time after the start. In the heating mode: the first power, if the current temperature ≤ set value, the heater will not start heating immediately, need to run the set delay time after the start. The chiller starts immediately when the shutdown time between the two starts of the chiller or heater is greater than the delay start time setting. When the shutdown time between the two starts of the cooler or heater is less than the delay start time setting, the device can be started after the start of the cooler delay time. The delay time is calculated from the moment of downtime. For example, in the cooling state, set the delay of 5 minutes, after the start of the refrigerator after the start delay, 5 minutes after the opening of the refrigerator when the required temperature to reach the cooler to stop, then start timing, when the next choke start time immediately Work, not finished timing to wait until the end of time to work, delay LED indicator light flashes. When the delay start is set to 0, it is equal to the off delay function.
reset: Due to some kind of man-made cause of the internal settings of the thermostat chaos, one to set a very time-consuming, this time can be used to restore the factory settings, the specific method: in the off state, while holding down the + and - , And then boot, all of the above parameters to restore to factory settings.