Bridge static level

Description :

　　The HR8066/67 high-precision static level is suitable for monitoring vertical displacement or settlement deformation with high requirements, and can monitor liquid level changes up to 0.01mm. The instrument consists of a series of containers containing liquid level sensors, which are connected by liquid filled connecting pipes between multiple containers. The reference container is located at a stable reference point, and any elevation change between the container and the reference container will cause a corresponding change in the liquid level inside the container. The elevation change of the measuring point can be obtained by measuring the liquid level change.

　　The HR8066/67 high-precision static level adopts pressure sensitive components of global quality. The static level product adopts a multi-point full range temperature compensation process of -20-60 ℃, which has the advantages of high measurement accuracy, no drift, strong reliability, and easy installation. The sealed shell has good moisture resistance and can work continuously for a long time in a relative humidity environment.

　　2. Technical parameters of static level

　　①. Main performance indicators

　　Standard range: 1000mm or other

　　Accuracy: ＜ ± 0.3mm

　　Resolution: 0.01mm

　　Annual stability: ＜ ± 0.5mm

　　Overload capacity: 200% F? S

　　②. temperature characteristic

　　Working temperature range: -20~85 ℃

　　Temperature compensation range: -20-60 ℃

　　Temperature sensor:

　　Temperature measurement range -40~150 ℃

　　Temperature measurement accuracy ± 0.2 ℃

　　③. Electrical Characteristics

　　Electrical Connection: Waterproof Four core Plug in

　　Supply voltage: 5-24VDC (HR8066)

　　12～24VDC（HR8067）

　　Output signal: MODBUS-RUT (HR8066)

　　4～20mA（HR8067）

　　Power protection: anti reverse connection, overvoltage protection

　　Communication interface: RS485, electrostatic protection

　　④. structural characteristics

　　Shell material: Aluminum alloy

　　Pipeline connector: stainless steel quick connector or stainless steel threaded locking connector

　　⑤. environmental characteristics

　　Protection level: IP67

　　Installation method: The exhaust valve is fixed vertically with the exhaust valve facing upwards

　　Preface

　　The Shaanxi Hengrui HR8066 static level (connected level settlement gauge) is a high-precision level measuring instrument used to measure relative elevation changes between two or more points. It typically consists of components such as a hydraulic cylinder, float, precision level gauge, protective cover, and support frame.

　　The Shaanxi Hengrui HR8066 static level is generally installed on a measuring pier of equal height or on the contour line of the measured object's wall. It usually uses an integrated modular automatic measurement unit to collect data, and is connected to a computer through wired or wireless communication to achieve automated observation.

　　At present, it is widely used in the fields of railway settlement monitoring, subway tunnel settlement monitoring, foundation pit, dam, bridge and house settlement monitoring.

　　Principle of Shaanxi Hengrui HR8066 Static Level

　　The Shaanxi Hengrui HR8066 static level utilizes the principle of connected fluid. Multiple Shaanxi Hengrui HR8066 static levels are connected by liquid pipes, and the liquid level is always at the same level. By measuring the liquid level height of different storage tanks and comparing it with the reference point of the Shaanxi Hengrui HR8066 static level, the relative differential settlement of each Shaanxi Hengrui HR8066 static level is obtained.

　　The vertical displacement of the reference point is relatively constant or can be accurately determined in other ways to calculate the settlement changes of each measuring point in the Shaanxi Hengrui HR8066 static level system.

　　Static leveling measurement has the advantages of high measurement accuracy (usually up to sub millimeter level), automated monitoring, stable performance, and real-time transmission.

　　Automated monitoring application

　　The static level automation monitoring system usually consists of multiple Shaanxi Hengrui HR8066 static level gauges, installation brackets, liquid connecting pipes, data acquisition systems, communication systems, backend management software, etc. The software can generate corresponding change curves based on observations and issue alarms according to engineering design values.

　　Monitoring of Building Foundation Settlement: For example, the CCTV new building foundation settlement is observed using the Shaanxi Hengrui HR8066 static level. When conducting such observations, the installation location of the instrument should fully consider the differences in structural load-bearing capacity of different parts of the building, and protect equipment such as connecting pipes.

　　Application in subway monitoring: Static leveling measurement is an important means of automated vertical displacement measurement for subway tunnel structures, which has been widely used. Unlike its application in building monitoring, the static leveling instrument HR8066 of Shaanxi Hengrui cannot be ignored due to the impact of train operation on the instrument itself and reference points.

　　Therefore, the accuracy of static leveling measurement during the nighttime shutdown phase of the subway is significantly higher than that during the operation period. The number of monitoring points should comprehensively reflect the changes in the monitoring area, and benchmark points should be set up in stable locations outside the affected area.

　　Monitoring of bridges, elevated structures, etc.: During the process of collecting the initial benchmark data, it is possible to temporarily block the flow of vehicles, so that the benchmark data obtained from monitoring will have more reference value. And take emergency measures in case of equipment failures such as data collection systems and power supplies.

AfterSalesService :

• Bridge static level