Hydraulic Static Level Gauges, Settlement Monitoring Equipment, Ground Settlement Monitoring

1: Monitoring Objectives and Justifications

Deformation monitoring involves the use of measuring instruments and other specialized equipment and methods to monitor and observe various deformation phenomena of the deforming body. It ultimately determines the spatial state and temporal characteristics of the deformation, including its form, magnitude, and positional changes under the action of various loads and external forces. Therefore, the purpose of deformation monitoring can be described as follows:

1) Deformation monitoring is a safety measure for engineering management operations.

2) Observing, analyzing, and researching deformations during construction and operation phases can validate the calculation methods for foundations and the design methods for engineering structures. It allows for the reasonable specification of allowable settlement and deformation values for different foundations and structural designs. This provides relevant data for the design, construction, maintenance management, and scientific research of engineering buildings, as well as analytical data for the safety evaluation of building structures.

3) By comparing monitoring data with predicted values, it can be determined whether the previous construction process and parameters meet the expected requirements, to ascertain and optimize the parameters for the next step, achieving dynamic design and informatized construction.

4) By comparing monitored data with predicted values, it can be determined whether the previous construction process and parameters meet the expected requirements, to ensure and optimize the next set of construction parameters, achieving dynamic design and informatized construction.

5) Deformation monitoring is a necessary means for people to obtain scientific knowledge, verify theories, and test hypotheses through deformation phenomena. By collecting monitoring data, it accumulates experience for the development of engineering design, construction, and related regulations.

Based on the site survey results, combined with our company's many years of experience in building monitoring, fully considering the on-site conditions and installation requirements of the equipment, this monitoring system provides a clear, concise, and user-friendly Chinese operational interface. It is easy to operate, flexible, and maintain.

Legality: The scheme design complies with the relevant national and industry regulations, as well as technical preventive requirements.

Practicality: Utilizing cost-effective and practical technologies and equipment, we consider the construction, upgrade, and maintenance costs of the system comprehensively, avoiding blind investments. The design of the solution meets system requirements and fully takes into account the usage needs of various clients, ensuring that the equipment's functions are as comprehensive as possible and fully utilized, guaranteeing stable, efficient, and long-term operation; and ensuring timely after-sales service.

Reliability: The system design, equipment selection, debugging, and installation will strictly adhere to quality regulations, fully complying with the specifications and standards of the bid, as well as the relevant national and industry standards and safety requirements of relevant departments. The system features consistency, upgrade capabilities, and technical support, ensuring continuous and stable operation around the clock.

Advancedness: In system design, we fully consider the technological development in the tunnel monitoring field, refer to the current development level of railway tunnel monitoring equipment, select qualified and stable products for the equipment, ensuring that our monitoring technology maintains a leading position domestically.

The HR8066 high-precision hydrostatic level gauge is suitable for monitoring vertical displacement or settlement with high requirements, capable of detecting 0.01mm changes in liquid level. The instrument consists of a series of containers equipped with liquid level sensors, interconnected by tubes filled with liquid. The reference container is located at a stable benchmark point, and any change in elevation between the reference container and any other container will cause a corresponding change in the liquid level within that container. By measuring the liquid level changes, the elevation changes at the measurement point can be obtained.

The instrument features RS485 digital signals for convenient data collection. It boasts high measurement accuracy, no drift, strong reliability, and easy installation. The sealed housing offers excellent moisture-proof performance, allowing for long-term continuous operation in a relative humidity environment.

2. Technical Specifications

Standard Range: 1000mm or other

Accuracy: ±0.5mm

Resolution: 0.01mm

Annual Stability: ±0.5mm or less

Output Signal: RS485

Operating Temperature Range: -20～85℃

Temperature Compensation Range: -20-60℃

Overload Capacity: 200% of F?S

Housing Material: Aluminum Alloy

Electrical Connection: Waterproof Four-Core Plug-in

Protection Level: IP67

Installation Method: Vertically fixed with exhaust valve facing up

Output Signal Wiring Method (RS485):

Red --- Power +

Yellow - Power Supply

Blue --- RS485-A

Green --- RS485-B

3. Communication Interface

The instrument features an industrial-grade RS485 communication interface, operating in a half-duplex master-slave mode, with a transmission distance up to 1200 meters.

Port Number: The serial port number for communication, default is COM1. Set according to the actual serial port connected on the computer when in use.

Baud rate: 9600 bps.

Check digit: No check.

Stop bit: 1 bit.

Data bits: Fixed at 8 bits.