Hefei Jingpu Sensor Technology Co., Ltd. is one of the leading manufacturers and suppliers of waterproof ds18b20 temperature sensor in China, featured by quality products and low price. If you're going to buy discount waterproof ds18b20 temperature sensor made in China, welcome to get quotation from our factory. We also accept customized orders.
Brief Instruction：
DS18B20 is one common digital temperature sensor. Its output is digital signal. Small volume, a strong anti-interference ability, fairly precise. Easily wired. The DS18B20 digital temperature sensor assembly can be more useful when you need to measure something far away, underwater or under the ground
Measurement temperature range: -55°C - +125°C (-67°F - +257°F)
Accuracy: ±1°C.
Power supply range:3.0V-5.5V/DC
Stainless steel tube size:Approx.6.0mm(Diameter)
The stainless steel tube inside be filled in the epoxy
Features：
Comply for RoHS standard
Digital signal output
Operating temperature range: -20℃~+80℃
Stainless steel tube Φ6*50mm
Application：
Freezer
Grain elevator
Storage tank
Telecommunications room
Cable trunking
HVAC systems
Cold chain logistics
Industrial systems
Thermostat controls system
It can also be used for:
The product is suitable for refrigeration, granary, storage tank, telecommunications room, power room, cable trough and other areas of temperature control.
Bearing bush, cylinder block, spinning machine, air conditioning, and other small space industrial equipment temperature control.
Automobile air conditioning, refrigerator, freezer, and low temperature drying oven, etc.
Heating/cooling pipe heat metering, central air conditioning household heat metering and industrial field temperature control.
Sensor structure:
Dimmension:
NO. | Name | Material Specification | QTY. | Remarks |
1 | Component | DS18B20 | 1 | / |
2 | Probe | SUSφ6*50 | 1 | / |
3 | Tube | Double wall heat shrinkable sleeve | 1 | black |
4 | wire | PVC 26AWG*3C（red/yellow/white）Round sheathed wire | 1 | Gray |
5 | Stripped | Tinned | 3 |
Technical performance description:
① Unique single-line interface mode, DS18B20 only needs one interface line when connected with the microprocessor to realize the two-way communication between the microprocessor and DS18B20.
② the temperature range is -55℃~+125℃, the inherent temperature error (note, not the resolution, here before is wrong)1℃. (3) Support multi-point networking function, multiple DS18B20 can be connected in parallel on the only three lines, at most 8 can be connected in parallel, to achieve multi-point temperature measurement, if the number is too much, will make the power supply voltage is too low, resulting in unstable signal transmission.
④ working power supply: 3.0~5.5V/DC (can data line parasitic power supply)
⑤ do not need any peripheral components in use
⑥ the measurement results in 9~12 digital quantity serial transmission
⑦ stainless steel protective tube diameter Φ6
⑧ suitable for DN15~25, DN40~DN250 all kinds of medium industrial pipes and narrow space equipment temperature measurement
⑨ standard mounting thread M10X1, M12X1.5, G1/2" optional
⑩ PVC cable directly out or German ball junction box out, easy to connect with other electrical equipment.
Note in use of DS1820
Although DS1820 has the advantages of simple temperature measurement system, high temperature measurement accuracy, convenient connection, less occupation line and so on, it should also pay attention to the following problems in practical application:
1. The small hardware overhead needs to be compensated by relatively complex software. Since serial data transmission is used between DS1820 and microprocessor, the read and write timing must be strictly guaranteed when DS1820 is programmed to read and write.
2. In the design of long distance temperature measuring system with DS1820, the matching of bus distributed capacitance and impedance should be considered.
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