DC12V Digital LED Microcomputer Thermostat Controller Switch Temperature Sensor

Description

DC12V Digital LED Microcomputer Thermostat Controller Switch Temperature Sensor
Features :
Accuracy: ± 0.1 ℃
control accuracy: 0.1 ℃
Backlash accuracy: 0.1 ℃
Refresh rate: 0.5S
High-temperature protection: 0-110 ℃
Input voltage: DC12V
Measuring input: NTC (10K0.5%) Waterproof sensor
Input: one 20A relay
Environmental requirements: -10 ℃ --60 ℃ humidity 20% - 85%
Size: 79mm (length) * 43mm * wide Depth: 26mm
Power consumption: Static current ≤35MA pull current: ≤65MA
Package includes:
1 X Digital LED Microcomputer Thermostat Controller Switch Temperature Sensor
1 X User Manual
Using Method
After connecting the power supply and equipment, the controller can supply power to the controller. At this time, the measured temperature is displayed. Press the set key once, and the display screen temperature will flash. Press ＋ - to set the required temperature (press and hold ＋ - to quickly rise and fall). After the setting is completed, press set to confirm the return. At this time, the controller automatically executes the relay on-off! The output of the temperature controller is 20A relay, which can meet all kinds of high-power loads. After connecting the control circuit, the temperature controller can be powered. At this time, the display screen shows the ambient temperature.
Status description of indicator light, nixie tube and buzzer
Indicator light: flashing indicates refrigeration or heating start-up delay, normally on means that the relay has been closed
Nixie tube: ll indicates that the sensor is open circuit, please connect the sensor according to the instructions; HH is beyond the measurement range; the thermostat will forcibly disconnect the relay; the display --- is high temperature alarm
Parameter function description
(a manual is attached to the product, which gives a detailed description of the parameter setting)
Long press set for 5 seconds to enter the main menu setting, press ＋ - to switch P0... P6, long press set or no key action for 10 seconds, and the controller will automatically confirm the return.
P0 refrigeration 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] and [C for refrigeration mode] for one time, press set to return, long press set or 10 seconds without key action, and the controller will automatically confirm the completion.
In refrigeration mode: when the temperature measurement value is greater than or equal to the temperature set point, the refrigeration relay is closed and the cooler is started; when the temperature measurement value is less than or equal to the temperature set point return difference, the refrigeration relay is disconnected and the cooler is closed.
Heating mode: when the temperature measurement value is less than or equal to the temperature set point, the heating relay is closed and the heater is started; when the temperature measurement value is greater than or equal to the temperature set point + return difference, the heating relay is disconnected and the heater is turned off.
P1 return difference setting
Long press set for 5 seconds to display P0, press ＋ - to switch to P1, press set once to set the difference value, press ＋ - to set the return difference value to 0.1-15. After completion, press set once to return. Long press set or 10 seconds without key action. The controller automatically confirms the completion.
In refrigeration mode: when the temperature measurement value is greater than or equal to the set value, the relay is closed and the cooler is started; when the temperature measurement value is less than or equal to the set value return difference value, the relay is disconnected and the cooler is closed.
For example, the environment is 30 ℃, the set value is 25 ℃, and the return difference is set to 2 ℃. After power on, the relay closes and the cooler starts. When the refrigeration reaches 23 ℃, the relay disconnects and the cooler closes. At this time, because the cooler has been disconnected, the temperature begins to rise. When the temperature rises to the set value of 25 ℃, the relay closes and the cooler starts again. In this way, the temperature is not higher than 25 ℃.
In heating mode: when the temperature measurement value is less than or equal to the set value, the relay is closed and the heater is started; when the temperature measurement value is greater than or equal to the set value + return difference value, the relay is disconnected and the heater is turned off.
For example, the environment is 10 ℃, the set value is 25 ℃, and the return difference is set to 2 ℃. After power on, the relay closes and the heater starts. When heating to 27 ℃, the relay disconnects and the heater turns off. At this time, because the heater has been disconnected, the temperature begins to drop. When it drops to the set value of 25 ℃, the relay closes the heater and starts again. In this way, the temperature is not lower than 25 ℃.
P2 high temperature setting upper limit
In order to avoid the danger of too high setting temperature caused by other people's misoperation, the temperature controller has the function of high setting upper limit, which limits the setting range of high temperature setting point controlled by the temperature controller.
Long press set for 5 seconds to display P0, press ＋ - to switch to P2, press set once to set high upper limit, press ＋ - to set high temperature, the maximum value is 110, after completion, press set once to return, long press set or 10 seconds without key action, the controller automatically confirms completion.
For example, if the temperature set point is set to 60 ℃, the high set point can only be set to 60 ℃. If the temperature setting point is to be higher and the temperature range is extended, the setting value of the upper limit should be adjusted first.
Lower limit of P3 low temperature setting
In order to avoid ice jam caused by low temperature caused by other people's misoperation, the temperature controller has the function of low setting upper and lower limits, which limits the setting range of low temperature set point controlled by the temperature controller.
Long press set for 5 seconds to display P0, press ＋ - to switch to P3, press set once to set low lower limit, press ＋ - to set low temperature, low value is - 50, press set once to return, long press set or no key action for 10 seconds, the controller automatically confirms completion.
For example, if the temperature set point is set to 2 ℃, the set value of the lower limit should be adjusted first if the temperature setting point is to be lower and the temperature range is to be expanded.
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 correction. The corrected temperature = the temperature before correction + the correction value, and the effective range is - 7.0 ~ 7.0.
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