數字土壤壓力傳感器ZET7010SP旨在在結構健康監測系統(SHM)的框架內使用,用于圍繞建筑物地基的地面壓力測量來控制沉降過程。
數字土壓力傳感器ZET 7010 SP由測量單元和基于應變片電路的傳感元件組成。
數字土壓力傳感器安裝在測量性能方面(在堤防、土壩、橋梁支座和基礎板)上。施加在傳感器外殼上的壓力被傳輸到傳感元件,傳感元件將壓力轉換成電信號。測量模塊對接口轉換器接收到的信號進行數字處理,利用Modbus協議通過RS-485接口以數字格式發送數字數據。
數字土壓力傳感器安裝在測量性能的區域,而用于數據通信的接口模塊則放置在電氣柜內.
數字式土壓力傳感器ZET7010SP應用
不同結構地基不均勻沉降的控制
充填過程中顆粒、糊狀和粘性介質的控制
數字式土壓力傳感器ZET7010SP規格參數
Metrological specifications | |
---|---|
Upper limit of pressure measurement range (URL) | 20 MPa |
Sensitivity threshold (the minimal possible difference between two consequtively measured values) | 500 Pa |
Measurement error | 0,1 % |
Technical specifications | |
Sampling rate | 1 Hz |
Data transmission interface | RS-485 |
Baud rate | 4800, 9600, 14400, 19200, 38400, 57600, 115200 bps |
Parity check | 0 – no control; 1 – control (parity check, ODD) |
Data protocol | Modbus RTU |
Operational specifications | |
Dimensions | Ø 120×17 mm |
Weight, max. | 1,3 kg |
Casing material | steel |
Power supply of the instrument | 9 – 24 V |
Consumed power | 0,5 W |
Reverse polarity protection | yes |
Operating temperature range | from -40 up to +80 °С |
Operating environment | soil, granular, paste-like or viscous media |
Product version | Standard (IP67 protection) |
Electromagnetic compatibility EMC | |
IEC 61000-4-2, ESD | contact 4 kV; air 8 kV |
IEC 61000-4-4, EFT | power 0,5 kV; signal 0,25 kV |
IEC 61000-4-5, Surge |