Product Introduction
Based on years of technical experience of independent research and development of ANCN brand intelligent instruments in the past, we make the Digital Static-Pressure Liquid Level Meter of ACD-302L. This instrument not only has the transmitter function of  (4 ~ 20) MA analog signal output, but also can increase the function of RS485 digital communication. Matched with the communication software, ACD-302L can be directly communicated with computer or other communication interface for data acquisition, and the detecting data preservation, processing and report output. It adopts the most advanced micro power consumption devices and improved software technology. Its 5 digits LCD backlight features makes it very rare outstanding one among the Liquid Level Transmitters.

 


  Application
　　- For the level measure of well, pond, water tower, etc；
　　- For the level measure and monitoring of water conservancy and hydropower；
　　- Water level measurement of urban water supply and sewage treatment;
- Liquid level measurement and control in industrial field;
- Liquid level measuring for all kinds of open tank, water tank and liquid tank;
 
 
 Product Characteristics
　　- Support liquid density modification, can be directly measured in different media；
　　- Acquisition Speed （0.1～10）S/A (S=second, A=acquisition)， settable freely；
　　- RS485 communication、USB communication、（4~20）mA  electrical current output , available；
　　- Broad 5 digits LCD display with back light function, very clear for eye-catching in the night；
　　- Never Off-Line Communication technology, data bus can support 255 units of RS485 sub devices；
　　- Signal-isolation technology , anti electromagnetic and radio frequency interference technology；
　　- Buttons pressed with magnetic induction pen, exempt from interference, not easy to damage； 
　　- Automatic temperature compensation technology, to reduce the error in harsh environment；
　　- Zero Self-Stability technology, with temperature compensation automatically, stability reliable；


 Product Parameters
　　Measure Range
　　0~1mH2O~200mH2O    ( any scope within it )

　　Accuracy
　　0.1%F.S   、    0.2%F.S    、      0.5%F.S

　　Stability
　　Superior to 0.2%FS/Year；

　　Output Signal
　　（4～20）mA（24V DC、two wire）、（1～5）V（24V DC，three wire）

　　Communication
　　RS485（ compatible with MODBUS RTU and ANCN Free Protocol）

　　Power Supply  
　　（10～30）V DC（power supply for communication ）

　　Acquisition Speed
　　（0.1～10） S/A  (S=second, A=acquisition)，default is 0.2S/A， time is settable.

　　Environmental Temperature
　　（-30～70）℃  

　　Relative Humidity
　　＜90%

　　Atmospheric Pressure
　　（86～106)kPa

　　Others
　　Correction reference environment temperature: ：20℃±2℃

　　The Medium temperature
　　Normal （-40～120）℃
　　Wide Temperature（-60～150）℃

　　Display
　　5 digits LCD display with backlight  +  percentage bar chart

　　Protection Grade
　　IP65

　　Explosion Proof Grade
　　ExdIIBT6 Gb

　　Overload Pressure 
　　(1.5～3）times of the range, depends on the measure range . 

 

　　Software
　　　　AncnView-T analysis software ( with USB communication), can Export instrument data, automatic storage, automatic drawing temperature curve, can be exported to Excel form, read, print,save.
 
  Lectotype