Introduction to 485 pressure communication instrument:

The YW-140 digital pressure instrument adopts an external power supply and has the function of on-site display and output digital communication interface. It can output a 4-20 mA current signal.

YW-140 Digital Pressure Instrument Application:

 *Suitable for systems or equipment supporting pressure collection through RS485 communication

 *Pressure monitoring and remote transmission of oil and gas wells

 *Suitable for large-scale network collection of pressure parameters

Characteristics of YW-140 digital pressure instrument:

 *Long service life, high accuracy, and good long-term stability

 *Advanced power management technology

 *Unique anti RF interference technology, perfectly matched with remote monitoring of digital radio stations

 *Supports RS485 communication and never drops communication technology, with bus support for 255 devices

 *Enhanced lightning protection technology to ensure safe operation of instruments

 *Zero point self stabilization technology

 *Temperature compensation technology

Technical data of YW-140 digital pressure instrument:

 1. Measurement range: gauge pressure: -100kPa~0-1kPa~260MPa

    Differential pressure: 0-500Pa-3.5MPa

    Absolute pressure: 0-10kPa~60MPa

 2. Communication method: RS485 (MODBUS RTU protocol)

 3. Accuracy level: 0.1, 0.2, 0.5

 4. Stability: better than 0.1% FS/year, better than 0.2% FS/year

 5. Display method: Dynamic four digit LCD digital display (equivalent to 4 and a half digits), plus Han

     Word prompt, can display pressure units such as kPa and MPa

 6. Overload pressure: 1.5-3 times the range, depending on the measurement range

 7. Communication power supply: 7-30VDC external power supply

 8. Medium temperature: -40~85 ℃

 9. Working environment: Temperature: -30 ℃~60 ℃; Humidity: ＜ 90%

 10. Explosion proof level: ExiaIIBT4, ExdIIBT4

 11. Electrical interface: M20 × 1.5 (internal thread)

 12. Process connection: M20 × 1.5 (external thread) or according to user requirements