数字土壤压力传感器ZET7010SP旨在在结构健康监测系统(SHM)的框架内使用,用于围绕建筑物地基的地面压力测量来控制沉降过程。
数字土压力传感器ZET 7010 SP由测量单元和基于应变片电路的传感元件组成。
数字土压力传感器安装在测量性能方面(在堤防、土坝、桥梁支座和基础板)上。施加在传感器外壳上的压力被传输到传感元件,传感元件将压力转换成电信号。测量模块对接口转换器接收到的信号进行数字处理,利用Modbus协议通过RS-485接口以数字格式发送数字数据。
数字土压力传感器安装在测量性能的区域,而用于数据通信的接口模块则放置在电气柜内.
数字式土压力传感器ZET7010SP应用
不同结构地基不均匀沉降的控制
充填过程中颗粒、糊状和粘性介质的控制
数字式土压力传感器ZET7010SP规格参数
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 |