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2023-07-13 0 Views

Analysis of common problems of temperature and humidity detection transmitters

The temperature and humidity detection transmitter is a device designed and manufactured for indoor air quality. It is mainly used to measure the ambient temperature and humidity, provide effective data, remind users to take action, and control Unicom air conditioners, humidifiers and other devices to provide users with a comfortable living environment. QweTextile Testing Instruments, Testing Equipment Manufacturer


Features of Temperature and Humidity TransmitterQweTextile Testing Instruments, Testing Equipment Manufacturer


1. Stable and reliable communication, wide range power supply DC12-24V. QweTextile Testing Instruments, Testing Equipment Manufacturer

QweTextile Testing Instruments, Testing Equipment Manufacturer
2. Optional external probe, more accurate measurement and faster response. QweTextile Testing Instruments, Testing Equipment Manufacturer


3. Extremely low power consumption and unique air duct design to prevent temperature rise in the circuit. QweTextile Testing Instruments, Testing Equipment Manufacturer


4. Second generation high precision probes imported from Switzerland. QweTextile Testing Instruments, Testing Equipment Manufacturer


5. Password protection function to prevent misoperationen by non-employees. QweTextile Testing Instruments, Testing Equipment Manufacturer


6. Celsius and Fahrenheit can be switched, universal. QweTextile Testing Instruments, Testing Equipment Manufacturer


7. Wall and ceiling construction, easy to install. QweTextile Testing Instruments, Testing Equipment Manufacturer


8. Super stability and anti-interference ability. QweTextile Testing Instruments, Testing Equipment Manufacturer


9. High measurement accuracy, wide range and good consistency. QweTextile Testing Instruments, Testing Equipment Manufacturer


10. The communication distance can reach 1200 meters. QweTextile Testing Instruments, Testing Equipment Manufacturer


11. The product has protection performance and first-class lightning protection. QweTextile Testing Instruments, Testing Equipment Manufacturer


Common problems and solutionsQweTextile Testing Instruments, Testing Equipment Manufacturer


Symptom: No output or incorrect outputQweTextile Testing Instruments, Testing Equipment Manufacturer


Possible reasons:


1) The corresponding error of the measuring range leads to a PLC calculation error. Please note some technical indicators for the measurement range. QweTextile Testing Instruments, Testing Equipment Manufacturer


2) The wiring method is wrong or the wiring order is wrong. QweTextile Testing Instruments, Testing Equipment Manufacturer


3) The power supply voltage is wrong (24V power supply for 0-10V models). QweTextile Testing Instruments, Testing Equipment Manufacturer


4)The distance between the transmitter and the collector is too large, which will cause signal interference. QweTextile Testing Instruments, Testing Equipment Manufacturer


5) The SPS capture port is corrupted. QweTextile Testing Instruments, Testing Equipment Manufacturer


6) The device is damaged. QweTextile Testing Instruments, Testing Equipment Manufacturer


Note: QweTextile Testing Instruments, Testing Equipment Manufacturer


1. The RS485 communication line must use a shielded twisted pair and two 250Ω termination resistors are required if necessary. QweTextile Testing Instruments, Testing Equipment Manufacturer


2. The operating environment should be free from conductive dust, metal-corrosive and insulation-damaging gases, and avoid direct sunlight and rain. QweTextile Testing Instruments, Testing Equipment Manufacturer


3. Do not apply this product in an environment of extreme temperature and humidity (working in a high humidity environment of more than 90%RH for a long time will cause drift) . QweTextile Testing Instruments, Testing Equipment Manufacturer


4. Avoid long-term exposure of components to salt spray, acid, or oxidizing gas (sulphur monoxide, hydrochloric acid, etc.) environments. QweTextile Testing Instruments, Testing Equipment Manufacturer


The productuses imported sensors and computer chips, which features high precision, high resolution and good stability. Widely usedIt is used in building HVAC, building energy saving, smart home, underground parking, airport train station and other places. QweTextile Testing Instruments, Testing Equipment Manufacturer

QweTextile Testing Instruments, Testing Equipment Manufacturer