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Digital Display Thermostat High Precision Miniature Temperature Controller Board Control Switch Module
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
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°C Humidity 20%-85%
Size: 48.5*40mm
Power consumption of the whole machine: quiescent current: ≤10MA
Pull-in current: ≤65MA
Features:
1, 100% complete machine patch, wave soldering, stable performance,
good consistency
2, embedded central processor chip (MCU), smarter, lower power
consumption
3, power-off setting automatic memory (MCU built-in EEPROM storage
unit)
4, control accuracy of 0.1 degrees Celsius
5, the setback of 0.1, can control the decimal (0.1-15.0)
Operating instruction:
Connect the power supply and equipment to supply power to the controller. At this time, it is displayed as measuring temperature. Press SET once, 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 controller automatically performs relay on/off according to the setting! The thermostat output is a 20A relay, which satisfies various high-power loads, and connects the control circuit to supply power to the thermostat. At this time, the display shows ambient temperature.
The indicator light, digital tube and buzzer status description
Indicator light: Blinking indicates cooling or heating start delay,
always on indicates that the relay is closed
Digital tube: Display LL is the sensor open circuit, please follow
the instructions to connect the sensor; display HH is out of the
measurement range, the thermostat will force the relay to be
disconnected; display --- for high temperature alarm
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 10 seconds without button action, the controller automatically confirms the return.
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 button action controller automatically confirm
carry out.
In the cooling mode: when the temperature measurement value ≥ the
temperature set point, the refrigeration relay is closed and the
refrigerator is started; when the temperature measurement value ≤
temperature set point - the return difference, the refrigeration
relay is turned off and the refrigerator is turned off.
In the heating mode: when the temperature measurement value ≤
temperature set point, the heating relay pulls in 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 return the difference, press +- to set the
difference to 0.1-15, press SET once when finished, long press SET
or 10 seconds without button The motion controller automatically
confirms the completion.
In the cooling mode: when the temperature measurement value ≥ the
set value, the relay is closed, the refrigerator starts; when the
temperature measurement value ≤ the set value - the 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 to start. When the cooling reaches 23
°C, the relay turns off the refrigerator and the refrigerator is
turned off. The opening temperature starts to rise. When it rises
to the set value of 25 °C, the relay closes the refrigerator again,
so the repeated cycle control temperature is not higher than 25 °C.
In the heating mode: when the temperature measurement value ≤ the
set value, the relay is closed, the heater is started; when the
temperature measurement value ≥ the set value + the return 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 27 °C,
the relay turns off the heater, and the heater is turned off. The
on temperature begins to drop. When it drops to the set value of 25
°C, the relay closes the heater to start again, so the repeated
cycle control temperature is not lower than 25 °C.
P2 maximum temperature setting upper limit:
In order to avoid the danger of setting the temperature too high
due to the misoperation of others, the temperature controller has
the highest setting upper limit function, which limits the setting
range of the highest temperature setting 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 after completion, press SET or 10 The controller is
automatically confirmed by the no-key action in seconds.
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:
In order to avoid the ice blockage caused by the misoperation 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 once to set the minimum lower limit, press +- to
set the lowest settable temperature, the lowest value is -50, press
SET once after completion, press SET or The controller
automatically confirms completion without a button action for 10
seconds.
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 at a lower
temperature range, you need to adjust the lower limit set value
first.
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