DS18B20 digital temperature sensor wiring convenient , packaged into a post can be used for many occasions , such as pipes , threaded magnet adsorption , stainless steel package type , model varied, with LTM8877, LTM8874 and so on. Mainly depending on the application to change its appearance. DS18B20 package can be used after the cable channel temperature , furnace temperature water cycle , the boiler temperature , room temperature, agricultural greenhouse temperature , clean room temperature, ammunition depots and other non- temperature limit temperature applications. Wear- resistant touch , small , easy to use package forms, for a variety of small spaces digital temperature measurement and control equipment in the field .
1 : Technical Performance description
①, unique single-wire interface mode , DS18B20 in connection with the microprocessor requires only one port line microprocessors and DS18B20 can achieve two-way communication .
②, temperature range -55 ℃ ~ +125 ℃, the inherent measurement error ( note, not the resolution before is wrong here ) 1 ℃.
③, support multi -point networking capabilities , multiple DS18B20 can be paralleled in only three lines , a maximum of eight parallel , multi-point temperature measurement, if an excessive number , make the power supply voltage is too low , resulting in signal transmission instability.
④, working power : 3.0 ~ 5.5V/DC ( data lines can be parasitic power )
⑤, requiring no external components , in use,
⑥, measurement results from 9 to 12 digital serial transmission mode
⑦, stainless steel protection tube diameter Φ6
⑧, suitable for DN15 ~ 25, DN40 ~ DN250 various media channels and the small space device temperature
⑨, standard mounting thread M10X1, M12X1.5, G1 / 2 " optional
⑩, PVC cable outlet directly or German ball outlet junction box for easy connection to other electrical equipment.