Technical Specifications and Features of Grouting Monitoring System

I. Core Advantages

1. User-Friendly Operation

Intuitive, clean, and aesthetically designed human-machine interface (HMI);
Operators require only minimal training to become fully proficient.

2. Innovative Design

Main interface features a human-centered modular layout—distinct from the industry-standard tabular format;
Harmonious color scheme and logical layout;
Real-time display and query capabilities for:
- Borehole information
- Instantaneous parameters
- Cumulative data
- Process data and real-time grouting curves

3. Comprehensive Functionality

Feature No.	Description
① Four-Parameter Real-Time Monitoring	Simultaneously monitors and records flow rate, pressure, water-cement ratio, and deformation (heave observation)—one of the few systems in China’s market that truly supports full four-parameter online monitoring.
② Flexible Multi-Cycle Modes	Supports multiple circulation modes: • 4-parameter large/small circulation • 3-parameter large/small circulation • 2-parameter large/small circulation Mode switching requires no hardware or software changes—only add or remove corresponding flow/density sensors.
③ Automatic Pressure Control	Integrates with automatic pressure regulation devices for real-time closed-loop pressure control.
④ Remote Heave Monitoring	Compatible with heave monitoring instruments for remote, real-time deformation tracking.
⑤ Dual Water-Cement Ratio Detection Methods	Offers two detection technologies: • Ionization-based (nuclear density gauge) • Differential pressure-based (range: 1.0–2.2 g/cm³) The only manufacturer in China offering both methods.
⑥ Built-in Self-Diagnostic Function	Automatically validates system parameters and alerts users immediately upon configuration errors, preventing operational mistakes.
⑦ Advanced Calculation Capabilities	• Automatically converts slurry-column and water-column pressures • Calculates cumulative volumes of added sand or clay

4. High Stability

Main Controller: Industrial-grade portable computer designed for field surveying—more robust and reliable than standard laptops;
Data Acquisition Unit: Equipped with high-precision isolated voltage regulators and A/D isolation modules to effectively suppress on-site electromagnetic interference;
Pressure Sensors: Utilize aerospace-grade sputtered thin-film sensing elements, ensuring high accuracy, strong anti-interference performance, and long-term stability.

5. Advanced Technology

Database Platform: Microsoft SQL Server 2000
- Powerful data management, analysis, querying, and secondary development capabilities;
- Optimized for handling massive datasets generated during grouting operations.

II. Technical Parameters

Main Unit Specifications

Parameter	Value
Number of Channels	2
Sampling Rate	60 samples/second
Pressure Resolution	0.01 MPa
Flow Resolution	0.1 L/min
Density Resolution	0.01 g/cm³
Heave Observation Resolution	1 μm
Power Supply	AC 220V ±20%
Frequency	50 Hz
Operating Temperature	–5°C to +45°C
Humidity	<90% RH

Sensor Specifications

Pressure Transmitter

Measurement Range: 0–10 MPa
Accuracy (FS): ±0.1%
Overpressure Tolerance: 120%
Connection Type: M20 × 1.5
Output Signal: 4–20 mA

Flow Meter

Measurement Range: 0–150 L/min
Accuracy (FS): ±0.5%
Power Supply: AC 220V ±20%
Pipe Diameter: D40 mm (customizable)
Output Signal: 4–20 mA

Density Meter

Measurement Range: 1.0–2.2 g/cm³
Output Signal: 4–20 mA

Displacement Sensor (Heave Monitoring)

Measurement Range: 0–5000 μm
Output Signal: 0–5 V
Accuracy (FS): ±0.02%

Computer Configuration

Component	Specification
Operating System	Windows XP
CPU	Intel T4300
RAM	2 GB
Hard Drive	250 GB

III. Typical Reference Configurations

Configuration 1: One Unit, Two Holes – 2-Parameter Small Circulation

Equipment	Quantity
NW2005 Data Acquisition Unit	1
NW2005 System Software	1
Computer (Lenovo Zhaoyang E42L)	1
Printer (Canon LBP3018)	1
Flow Sensors (0–150 L/min)	2
Pressure Transmitters (0–10 MPa)	2

Supported Functions: Real-time grouting curve generation & printing, live data organization.

Configuration 2: One Unit, Two Holes – 3-Parameter Large Circulation

Equipment	Quantity
NW2005 Data Acquisition Unit	1
NW2005 System Software	1
Computer (Lenovo Zhaoyang E42L)	1
Printer (Canon LBP3018)	1
Water-Cement Ratio Detectors (Ionization or Differential Pressure Type)	2
Inlet Flow Sensors (0–150 L/min)	2
Return Flow Sensors (0–150 L/min)	2
Pressure Sensors (10 MPa)	2

Supported Functions: Real-time grouting curve generation & printing, live data organization.

Note: All configurations are customizable based on project requirements and can be scaled to support four-parameter monitoring or multi-hole parallel operations.

Hangzhou Changjie Technology Co., Ltd.
Pioneering Intelligent Grouting Monitoring Solutions
Ensuring engineering quality through innovation—driving construction intelligence with data.