Water pipe settlement instrument model: QX-WGJ

1 Characteristics
Can continuously measure and record the settlement process;
High resolution and precision;
Digital sensors, long-term stability;
No temperature drift, time drift, linear output;
Anti electromagnetic interference, even if the power is turned on after a power outage, the output data will still be correct;
Can be used in conjunction with display, collection and recording devices to achieve process monitoring.
2 uses
QX-WGJ settlement meter is a buried digital output settlement meter. It is mainly used for internal settlement of earth and rock dams, rock masses, roads, foundations or fill soil, and is particularly suitable for continuous deformation observation of concrete face rockfill dams, as well as automatic data collection and recording.
The sensor of QX-WGJ settlement instrument is a high-precision (± 0.5mm), high-resolution (0.1mm), and highly reliable photoelectric switch rotary encoder. The output data shows linear changes without temperature and time drift, and its performance is far superior to other types of sensors.
The level sensor and display recorder of this instrument can be directly used in conjunction with various types of installed water pipe settlement devices, transforming manual observation and recording into automatic observation and recording, and improving the accuracy of measurement and recording.
3 Construction and working principle
The QX-WGJ settlement instrument consists of a settlement package, settlement plate (settlement base), connecting pipe, digital level, digital acquisition, display, etc. Its working principle is that the settlement package buried in the settlement point of the dam body includes overflow pipes and ventilation pipes, which are connected to the level gauge in the observation room through connecting pipes. When the settlement package sinks, the overflow outlet of the settlement package produces overflow and is discharged outside the dam through the drainage pipe. When the settlement point causes overflow, the water level of the level gauge also drops synchronously. Observing the water level change of the level gauge is equivalent to observing the settlement elevation change of the settlement point. The observation value is added to the settlement of the observation room itself to obtain the actual settlement value of the settlement point.
Its level is composed of a full-scale photoelectric switch rotary encoder, a level barrel, a float, a measuring cable, an electrical output socket, etc. Its output signal is a Gray code of 12-15 bits, with a range of 0-100mm to 0-16m and a resolution of 0.1mm to 0.5mm, which can meet various observation needs.
The level sensor has parallel Gray code output, RS485/232 output (optional), and 4-20mA current loop output (optional), which can be easily matched with various displays and recorders to achieve automatic observation and recording of settlement points.
4 Technical parameters
Range: 50, 100, 200, 400, 800, 1000, 2000, 4000, 8000, 16000mm;
Resolution: 0.1mm, 0.125mm, 0.25mm, 0.5mm;
Output code: Gray code 9-15 bits;
Output interface: RS485/232 (optional), 4-20mA (optional);
Power supply voltage: 12V/24V DC;
Power consumption: 30mA, 50mA;
Temperature range: -25 to+80 ℃;
Horizontal bucket size: Ø 250 × 700 (400mm range).