This is a red display 12 VDC Digital NTC temperature control meter and sensor.
Product features
1, complete machine patch, wave soldering, stable performance, good consistency
2, with a shell, more beautiful and practical
3, embedded central processor chip (MCU), smarter, lower power consumption
4, power-off setting automatic memory (MCU built-in EEPROM storage unit)
5, control accuracy of 0.1 degrees Celsius
6, the setback of 0.1, can control the decimal (0.1-15.0)
Technical parameters
Temperature control range: -50~110°C
Resolution: -9.9~99.9 when 0.1 °C Other temperature range 1 °C
Temperature measurement accuracy: 0.1 °C
Control accuracy: 0.1 °C
Hysteresis accuracy: 0.1 °C
Refresh rate: 0.5 S
Display type: 0.28 inch three digital tube
Input power: DC 12V
Measurement input: NTC (10K 0.5%) Waterproof sensor Line length 300mm
Output: 1 relay output, 5A 250VAC, 20A 16VAC
Environmental requirements: -10~60°C Humidity 20%-85%
Size: 47.5*18.5*31.5mm
Power consumption of the whole machine: quiescent current: ≤10MA Pull-in current: ≤65MA
Method of use
Connect the power supply and equipment to supply power to the thermostat. At this time, the temperature is displayed. Press the SET button, the display temperature will flash, press +- to set the desired temperature (press +- to quickly raise and lower) After finishing, press SET to confirm the return. At this time, the thermostat automatically performs relay on/off according to the setting!
Indicator light: The yellow indicator light is always on, indicating that the relay is closed.
Digital tube: Display LLL is the sensor open circuit, please follow the instructions to connect the sensor; display HHH is out of the measurement range, the thermostat will force the relay to open
Parameter function description
Press and hold SET for 5 seconds to enter the main menu settings, press +- to switch P0...P6, long press SET or 5 seconds without key action, the thermostat automatically confirms the return.
Package Content:
1x W1209 Temperature Controller Module
1x NTC Thermal Sensor
P0 Cooling and heating mode (factory is cooling mode):
Press and hold SET for 5 seconds to display P0, press SET to set the working mode, press +- to switch [H is heating mode] [C is cooling mode] Click SET to return, long press SET or 5 seconds without key action thermostat automatically Confirmation is complete.
In the cooling mode: when the temperature measurement value ≥ temperature set point + hysteresis, the refrigeration relay is closed and the refrigerator is started; when the temperature measurement value is ≤ temperature set point, the refrigeration relay is disconnected, and the refrigerator is closed.
In heating mode: When the temperature measurement value ≤ temperature set point - hysteresis, the heating relay pulls in and the heater starts; when the temperature measurement value ≥ temperature set point, the heating relay is turned off and the heater is turned off.
P1 hysteresis setting (factory value 2 ° C):
Press and hold SET for 5 seconds to display P0, press +- to switch to P1, press SET to set the difference back, press +- to set the difference to 0.1-15, press SET to return when finished, long press SET or 5 seconds without button The motion thermostat automatically confirms the completion.
In the cooling mode: when the temperature measurement value ≥ the set value + the return value, the relay is closed and the refrigerator is started; when the temperature measurement value is ≤ the set 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 to start. When the cooling reaches the set value of 25 °C, the relay turns off the refrigerator and closes. The temperature has started to rise and the temperature has started to rise. When the temperature rises to 27 °C, the relay closes the refrigerator again, so the repeated cycle control temperature is not higher than 25 °C + 2 °C.
In heating mode: When the temperature measurement value ≤ set value - return difference, the relay is closed and the heater is started; when the temperature measurement value is ≥ set value, the relay is turned off and the heater is turned off.
For example, if the environment is 10 °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 heater to start. When it is heated to 25 °C, the relay turns off the heater and the heater is turned off. The on temperature begins to decrease. When it drops to the set value of 23 °C, the relay closes the heater to start again, so the repeated cycle control temperature is not lower than 25 °C - 2 °C.
P2 upper temperature setting upper limit (factory value 110 °C):
In order to avoid the danger of setting the temperature too high due to the mis-operation of others, the thermostat has the highest 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 to set the upper limit, press +- to set the highest settable temperature, the maximum value is 110, press SET to return after finishing, press SET or 5 The second time without the button action thermostat automatically confirms the completion.
For example: set to 60 temperature set point can only be set to 60 ° C. If the temperature set point is to be expanded, the upper limit set value needs to be adjusted first.
P3 lowest temperature setting lower limit (factory value -50 °C):
In order to avoid the ice blockage caused by the mis-operation of others, the temperature controller has the lowest setting upper and lower limit functions, which limits the setting range of the lowest temperature set point controlled by the thermostat.
Press and hold SET for 5 seconds to display P0, press +- to switch to P3, press SET to set the lower limit, press +- to set the lowest settable temperature, the lowest value is -50, press SET to return after finishing, press SET or The 5-second no-key action thermostat automatically confirms the completion.
For example: set to 2 temperature set point can only be set to 2 °C minimum. If the temperature set point is to be expanded lower, the lower limit set value needs to be adjusted first.
P4 temperature correction (factory value 0 °C):
When the measured temperature is deviated from the standard temperature or due to special needs of the user's hardware, this function can be used for correction. The corrected temperature = temperature before correction + correction value The valid range is -7.0~7.0.
Press and hold SET for 5 seconds to display P0, press +- to switch to P4, press SET to correct, press +- to set the correction value, press SET to return when finished, long press SET or 5 seconds without key action thermostat automatically confirm 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 shows 26.5 degrees; when the temperature is corrected to -1.5, it shows 23.5.
P5 delay time (factory value 0 minutes):
When the refrigerator or heater is working with a delay, the delay function can be turned on to protect the life of the device. The delay function includes delay start and delay off.
Press and hold SET for 5 seconds to display P0, press +- to switch to P5, press SET to set the delay time unit is minute, press +- to set 0-10 minutes, press SET to return after finishing, long press SET or 5 seconds without Key action thermostat automatically confirms completion
In the cooling mode: When the temperature measurement value ≥ temperature set point + hysteresis, the chiller will not start the cooling immediately, and it needs to run after the set delay time. When the temperature measurement value ≤ temperature set point, the refrigerator will not stop cooling immediately, and it needs to be turned off after running the set delay time.
In heating mode: When the temperature measurement value ≤ temperature set point - hysteresis, the heater will not start heating immediately, and it needs to run after the set delay time. When the temperature measurement value ≥ temperature set point, the heater will not stop heating immediately, and it needs to be turned off after running the set delay time.
For example, the setting delay in the cooling state is 1 minute. When the opening condition is met, the chiller starts to delay, and after 1 minute, the chiller is turned on; when the closing condition is met, the delay is started, and after 1 minute, the chiller stops cooling.
When the delay is set to 0, it is equal to the off delay function.
Restore factory settings: In the off state, press and hold the + and - buttons simultaneously, then turn on the power, the digital tube displays 888 and all parameters are restored to the factory defaults.
WARNING
