BX-30 temperature control switch

Intelligent Temperature Controller Manual 1. Functional Features: The intelligent temperature control switch for the breeding farm uses imported industrial grade chips as the core to measure temperature, and three high brightness red LED digital displays the temperature value, ensuring stable and reliable operation

Intelligent Temperature Controller Manual

1、 Functional Features

The intelligent temperature control switch of the breeding farm adopts imported industrial grade chips as the core to measure temperature, and three high brightness red LED digital displays the temperature value, which works stably and reliably. Within the temperature range of -20 ℃ to+120 ℃, the load can be switched on and off according to the temperature range and control mode set by the user. The temperature parameters set by the user are stored in the chip, which is not affected by power outages and does not lose data during power outages. There are four different temperature control modes available, suitable for both heating and cooling control, which can meet the needs of the vast majority of application scenarios. Forward heating is suitable for electric heaters, electric ovens, electric incubators, electric water heaters, over temperature protection, etc., while reverse cooling is suitable for air conditioning refrigeration, exhaust ventilation, etc. Reminder: Before using the temperature control switch for the first time, it is necessary to select and set a temperature control mode, otherwise it will not work properly. For specific instructions, please refer to the [Temperature Control Mode Settings] chapter!

2、 Related parameters

1. Rated voltage: 220V/50Hz;

2. Load power: pure resistive 3000W/inductive 1500W

3. Temperature range for work control: -20~120 ℃

4. Temperature error ≤ ± 0.50 ℃ to ± 0.80 ℃

5. Display resolution: 0.1 ℃ (decimal places are not displayed for temperatures below -9.9 ℃ and above 99.9 ℃);

6. Installation method: Terminal wiring (three fixing methods: guide rail, suction wall, and hanging)

7. Type and wiring length of temperature sensor: Thermal sensitive, high temperature resistant, waterproof, standard with 8 meters

3、 Switch panel button diagram and wiring diagram

4、 Temperature control mode setting: In the temperature display state, press and hold the [Add] and [Subtract] keys simultaneously for more than 3 seconds to enter the working mode transition state, and the display 'P_' will flash. Press the [Add] or [Subtract] keys to adjust between P1-P2-P3-P4 according to the table below, and then press the [Set] key to return to the temperature measurement state. (Factory default set to P3 mode)

working mode	Control relationship*	Additional notes
P1 Single limit control heating type	When the measured value is less than the set value, the switch is turned on; when the measured value is greater than the set value, the switch is turned off	Suitable for simple low-power heating control, only one temperature limit needs to be set. For example: small electric heaters, water heaters, etc
P2 Single limit control cooling type	When the measured value is greater than the set value, the switch is turned on; when the measured value is less than the set value, the switch is turned off	Suitable for simple low-power cooling control, only one temperature limit value needs to be set. For example: small cooling devices, fans, etc
P3 Dual limit control heating type	When the measured value is less than the lower limit set value, the switch is turned on. When the lower limit set value is less than the measured value and less than the upper limit set value, the switch state remains unchanged. When the measured value is greater than the upper limit set value, the switch is turned off	Suitable for complex and high-power heating control, it is necessary to set upper and lower temperature limits to avoid frequent starting and stopping of control equipment and extend its lifespan. For example, industrial heating equipment such as electric ovens and electric incubators
P4 Dual limit control cooling type	When the measured value is greater than the upper limit set value, the switch is turned on. When the lower limit set value is less than the measured value and less than the upper limit set value, the switch state remains unchanged. When the measured value is less than the lower limit set value, the switch is turned off	Suitable for complex and high-power cooling control, it is necessary to set upper and lower temperature limits to avoid frequent starting and stopping of control equipment and extend its lifespan. For example: industrial cooling equipment breeding, cold storage

Note: All measured values and set values of the control relationship of this switch can be set to decimal places. (Less than -9.9 ℃ and greater than 99.9 ℃ do not display decimal places)

5、 Operation Settings

1. Set upper and lower temperature limits: In the temperature display state, (1) press the [Set] button once, display H - enter the upper temperature limit setting, the upper temperature limit display flashes, press [Add] or [Subtract] to adjust the upper temperature limit value, (2) press the [Set] button again, display L - enter the lower temperature limit setting, the lower temperature display flashes, also press [Add] or [Subtract] to adjust the lower temperature value, (3) press the [Set] button again, display F - enter the manual temperature adjustment setting, also press [Add] or [Subtract] to adjust (default is 0.0 ℃, adjust temperature range ± 5 ℃) After setting, press the [Set] button again to return to the temperature measurement state. Explanation: If using temperature control working modes P3 and P4, two temperature values, high and low, need to be set. If the temperature control working modes P1 and P2 are selected, the display will show -, and only one temperature value needs to be set.

2. Automatic exit from setting state: If there is no normal operation to exit the setting state during the data setting process, and no button is pressed for 15 seconds in the middle, the system will automatically exit the setting state and return to the temperature measurement state. At the same time, the data for this setting operation will be automatically saved.

6、 Output delay: The output port has added a judgment delay of about 1 second. If every measurement result within 2 seconds meets the action requirements of the output port, the output port will actually execute the action. Otherwise, it will not execute. The purpose is to avoid output port misoperation caused by fluctuations such as lightning small induction, large equipment start and stop, etc.

Fault safety measures: If the sensor has an open circuit fault, the display will immediately show 'HHH'. If the sensor and its leads have a short circuit, the display will immediately show 'LLL'. In order to prevent adverse consequences that may occur after the sensor has an open circuit or short circuit, the control output port will be closed first.

7、 Other

1. The use of temperature control switches and the absence of corrosive gases on site; The sensor should not work in environments with corrosion and temperatures exceeding 125 ℃ to avoid damage to the leads. Do not arbitrarily extend the sensor leads (standard configuration 8 meters, maximum length not exceeding 10 meters), otherwise it will increase the temperature measurement error.

If necessary, when using sensors in gases or liquids with slight corrosion, multiple sensors should be prepared for regular replacement. At the same time, the condition of the sensors should be checked regularly. This product uses a thermistor temperature sensor with R (25 ℃)=10K and B (25/85)=3435K. When users replace the temperature sensor themselves, they must ensure that the parameters are the same.

3. In certain situations where it is required to control a 380V three-phase AC power supply, a temperature control switch and an AC contactor can be installed together in a low-voltage control cabinet for use. (Note that there must be a neutral wire in the control cabinet, and professional electricians are required to install the wiring. The wiring method is detailed in the wiring diagram of this manual).