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NTC Sensor for Thermostat Temperature Controller air Conditioner, Refrigerator
Custom 5K 10K 15K 20K 25k 50K 100K NTC thermistor sensors ( rubber head copper head sensor probe Kit ) are used to measure the temperature of the HVAC, Freezer, evaporator and of the conditioned interior. An air-conditioning installation can also serve for heating in winter.
Custom 5K 10K 15K 20K 25k 50K 100K NTC thermistor sensors ( rubber head copper head sensor probe Kit ) are used to measure the temperature of the HVAC, Freezer, evaporator and of the conditioned interior. An air-conditioning installation can also serve for heating in winter.
1. The resistance of different types of NTC temperature sensor is different, but how to judge the quality of the temperature sensor? Very simple, it is to measure its voltage online, the normal voltage at 25 degrees is generally between + 2 ~ + 2.5В .
2. Because the human body temperature is constant, the on-circuit voltage is not constant (approximately 2.17V) when holding the temperature-sensing head for a while.
3. Unplug the NTC temperature-sensing head, and measure the resistance of the two pins of the socket on the line. The resistance value is basically the model value of the temperature-sensing head at 25 ℃ (this method is inaccurate after actual inspection). If the resistance is about 8K, the model value of the NTC sensor temperature head is generally 10K; if it is a 4.7K resistance, it is a 5K temperature head; and so on. Однако, for some large air conditioners, the resistance value of the NTC temperature sensor of the control board of the inverter air conditioner external unit is 3 times the lower bias resistance, that is, the resistance value measured by the above method multiplied by 3 is the resistance value of the NTC sensor at 25 ° C.
4. The model value of the NTC temperature sensor is its resistance value at 25 ℃, usually 5K, 10K, 15K, 20K, 25k, 50K, 100K which are generally negative temperature coefficient, that is, the higher the temperature, the more the resistance value small.
5. Generally speaking, the temperature of the internal machine tube and the room temperature resistance are the same.
|
rubber head copper head NTC sensor probe Kit |
Custom 5K 10K 15K 20K 25k 50K 100K NTC thermistor sensors |
NTC Sensor for Thermostat Temperature Controller air Conditioner |
Описание
| TYPE: | NTC thermistor sensors probe | B25/50: | 3950K, 3977K, 3435K |
| Sensor Head: | O Ring, Fork Metal, Injected Tube, NPT, M16, tainless Steel Tube | Проволока: | CL2 PT4,#24 2466,#28 1332 |
| Usage: | Датчик температуры, Instant Water Heaters, water heater, air conditioner, refrigerator, water fountain, induction cooker, coffee maker | Pn (rated Power): | 50mw |
| High Light: | EPCOS / AVX / SEMITEC /SUBARA / MITSUBISHI / OHIZUMI NTC thermistor Sensor, 3977K NTC Temperature Sensor, Thermistor Water Temperature Probe | ||
Custom NTC thermistor sensors probe Wire 3M~10M Theory Signal Output Origin.
| Specification Name | Scope | Detection Condition |
| R25(nominal resistance value) | 1k, 2k, 2.7k, 3k, 5k, 10k, 15k, 20k, 30k, 40k, 47k, 50k, 100k, 200k (EPCOS / AVX / SEMITEC /SUBARA / MITSUBISHI / OHIZUMI NTC thermistor) | Constant temperature 25℃±0.05℃ |
| R25 Permissible variance(%) | ±1,±2, ±3, ±5, ±10 | Constant temperature 25℃±0.05℃ |
| B25/50 or B25/85(material coefficient)(thermal-sensitivity index) | 2500~5000K | Constant temperature 25℃±0.05℃
Constant temperature 85℃±0.05℃ |
| B25/50 Value permissible variance(%) | ±1,±2 | Constant temperature 25℃±0.05℃
Constant temperature 50℃±0.05℃ |
| ∫(dissipation coefficient) | ≥0.8mw/℃ | Static in the air |
| T(thermal time constant) | ≤25S | Static in the air |
| Ta(Working temperature) | -30℃~+120℃ | |
| Pn (rated power) | 50mw | within working temperature |
| Case and head | Fork head, O ring head,drops of water head, Metal case, Thread copper case, injection head, tainless Steel Tube, or according to client’s drawing | |
| Lead wire | #24 30# 2651, UL4411 28#, double wired conductor and so on, or according to client’s request. | |
| Terminal | Can be riveted according to the requirements of various terminals |
The sensor’s connection terminal and housing size and lead length can be customized according to customer requirements
Services
1. Your inquiry will be replied within 24 hours;
2. Well-trained and experienced staff are always at your service.
3. Unique design products and many private mold product are waiting for your choice.
4. Strictly protect your private information and your ideas of design.
Часто задаваемые вопросы
Q1. Can I have a sample order for NTC, PT100,PT1000, RTDs, and Ds18b20 SENSOR?
А: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
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