{"product_id":"tzw-ntc-5k-10k-15k-20k-50k-100k-air-conditioning-temperature-sensor-temperature-control-probe-ntc-thermistor-temperature-sensor","title":"TZW NTC 5K 10K 15K 20K 50K 100K Air Conditioning Temperature Sensor Temperature Control Probe ntc Thermistor Temperature Sensor","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eTENGZHIWEI\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eLead length\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e1M 2M\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMaterial\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMixture\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOutput\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eAnalog Sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eResistance value\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e5K-10K-15K-20K-50K-100K\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eTheory\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eResistance Sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eTemperature Sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eUse\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eTemperature Sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eencapsulation\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eEpoxy resin encapsulation\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eplug\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eXH2.54-2Y White\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S51371a012927436c9ed96dab12327e04E.png\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003eShopkeeper tips: Generally hang up with 5K- 10K more. The cabinet machine uses 10K- 20K more. The specific need to use a multimeter to measure the resistance value\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003eThe general ambient temperature sensor is a small black fin near the wall of the outdoor unit. The pipe temperature sensor is plugged into the wall of the coil inside the outdoor unit.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003eCopper head is the detection of copper pipe, temperature conduction fast; The rubber head is generally used to detect the ambient temperature, corrosion resistance, high reliability\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003eHow to judge the resistance value of air conditioning temperature sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003eThe air conditioning circuit designer takes the normal temperature of 25 degrees as the benchmark, that is, 25%, RTl=R1, RT2=R2, and the voltage at point A and B is 2.5V. Some circuits are equipped with R3 and R4, which mainly play a buffer role. When the ambient temperature rises, the RTI resistance decreases, the voltage at point A rises, and the comparator outputs a differential pressure. After a series of processing within the CPU, the internal and external machine running state is controlled.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003eLarge air conditioning, variable frequency air conditioning outside the control board, temperature sensor VI sampling voltage is not 2.5V, but 1\/4 power supply voltage, that is, 1.25V, in fact, to determine the thermistor resistance value there is a particularly simple method, choose a 50k potentiometer and a thermistor universal plug, for convenience, between can be connected with a long wire, Unplug the suspected thermistor, plug in the universal plug, power on the air conditioner, test the voltage of the two terminals of the potentiometer with a multimeter 5v, slowly turn the potentiometer handle, when the voltage is 2.5V, stop turning, then the resistance value of the potentiometer is the resistance value of the thermistor. For example, if the resistance value is 8k and the ambient temperature is about 30 ° C, the resistance value of the temperature sensor is 10k.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003eHow to judge the quality of air conditioning temperature sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003eIf the air conditioning temperature sensor is broken, the following phenomena will occur, which can be used to judge the quality of the air conditioning temperature sensor:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003e1. The resistance value of the indoor ring temperature sensor increases, causing the air conditioner to start frequently.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003e2. The resistance value of the indoor pipe temperature sensor becomes small, causing the whole machine protection shortly after starting.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003e3. The temperature sensing performance of indoor ring temperature and pipe temperature changes, causing the air conditioner to work improperly.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003e4. The indoor pipe temperature change value is 0Ω, resulting in no response to the remote startup of the whole machine.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003eAir conditioning temperature sensor is broken solution:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003eThe temperature sensor barrier occupies a relatively large proportion in the air conditioning fault, to accurately judge the first thing to understand its function, the air conditioning control part is equipped with three temperature sensors:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003e1. Room temperature sensor: mainly detect the indoor temperature, when the indoor temperature reaches the set requirements, control the operation of the internal and external machine, the external machine stops when cooling, the internal machine continues to run, and the internal machine stops after blowing waste heat when heating.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003e2. Indoor pipe temperature sensor: mainly detects the coil temperature of the indoor evaporator, and plays the role of anti-cold air, anti-overheating protection and automatic temperature control during heating.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003e3. Outdoor defrosting temperature sensor: mainly detects the temperature of outdoor condenser coil. When the outdoor coil temperature is lower than -6 degrees Celsius for 2 consecutive minutes, the inner unit will turn into defrosting state.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003eThe displayed temperature of the air conditioner is inconsistent with the actual perceived temperature Cause analysis:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003e1. The remote control is not set correctly;\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003e2. The filter is not cleaned in time;\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003e3. There are items in the air conditioner inlet and outlet affecting the heating effect, and the room has a heat source or many indoor personnel resulting in poor cooling effect;\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003e4. The room insulation effect is poor;\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003e5. The indoor power supply voltage is too low, resulting in low air conditioning efficiency;\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003e6. The ambient temperature is too high or too low, resulting in poor effect.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003eDuring the maintenance of the air conditioner, the temperature sensor (thermistor) has a high proportion of faults. Once the fault occurs, such as open circuit, short circuit, or poor characteristic curve, the air conditioner displays an abnormal code and cannot work normally. Because the temperature sensor is not marked with parameters and resistance values, it is often difficult to determine in maintenance, that is, the same brand, different models, the resistance value is not necessarily the same.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size:26px\"\u003eTemperature sensor, that is, the resistance value decreases when the temperature rises; The resistance value increases when the temperature decreases. The negative sampling voltage of the CPU comparator is 1\/2 of the CPU power supply voltage, which is 2.5V. While the peripheral circuit RTl and RT2 op amp comparator positive pull-up resistance, R1 and R2 are the lower bias resistance.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S88224f54cad44a928b0d5d0aa23af04a6.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S977b9370c9b249bca3bee4caf8e6f380e.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Seeb79ddbaed54d6bafff7397084998f73.png\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S3e416188bc4b4c3794a8ff1ff656d5291.png\" slate-data-type=\"image\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Yoeruyo","offers":[{"title":"NTC-5K-1M-1PCS","offer_id":55084088394027,"sku":"14:10#NTC-5K-1M-1PCS","price":9.72,"currency_code":"USD","in_stock":true},{"title":"NTC-15K-1M-1PCS","offer_id":55084088426795,"sku":"14:173#NTC-15K-1M-1PCS","price":9.5,"currency_code":"USD","in_stock":true},{"title":"NTC-10K-1M-1PCS","offer_id":55084088459563,"sku":"14:29#NTC-10K-1M-1PCS","price":9.77,"currency_code":"USD","in_stock":true},{"title":"NTC-50K-1M-1PCS","offer_id":55084088492331,"sku":"14:193#NTC-50K-1M-1PCS","price":9.09,"currency_code":"USD","in_stock":true},{"title":"NTC-20K-1M-1PCS","offer_id":55084088525099,"sku":"14:175#NTC-20K-1M-1PCS","price":9.59,"currency_code":"USD","in_stock":true},{"title":"NTC-5K-2M-1PCS","offer_id":55084088557867,"sku":"14:496#NTC-5K-2M-1PCS","price":10.98,"currency_code":"USD","in_stock":true},{"title":"NTC-100K-1M-1PCS","offer_id":55084088590635,"sku":"14:366#NTC-100K-1M-1PCS","price":9.41,"currency_code":"USD","in_stock":true},{"title":"NTC-15K-2M-1PCS","offer_id":55084088623403,"sku":"14:200006154#NTC-15K-2M-1PCS","price":11.07,"currency_code":"USD","in_stock":true},{"title":"NTC-10K-2M-1PCS","offer_id":55084088656171,"sku":"14:365458#NTC-10K-2M-1PCS","price":10.62,"currency_code":"USD","in_stock":true},{"title":"NTC-50K-2M-1PCS","offer_id":55084088688939,"sku":"14:100013777#NTC-50K-2M-1PCS","price":11.07,"currency_code":"USD","in_stock":true},{"title":"NTC-20K-2M-1PCS","offer_id":55084088721707,"sku":"14:1254#NTC-20K-2M-1PCS","price":11.07,"currency_code":"USD","in_stock":true},{"title":"NTC-100K-2M-1PCS","offer_id":55084088754475,"sku":"14:200005536#NTC-100K-2M-1PCS","price":10.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/S51371a012927436c9ed96dab12327e04E.webp?v=1787829748","url":"https:\/\/yoeruyo.com\/products\/tzw-ntc-5k-10k-15k-20k-50k-100k-air-conditioning-temperature-sensor-temperature-control-probe-ntc-thermistor-temperature-sensor","provider":"Yoeruyo","version":"1.0","type":"link"}