- NW-I Grouting Water Pressure Monitor
- time：2023-05-18 10:15:20
1 Technical Features
User-Friendly Operation
- Clean, intuitive, and aesthetically designed human-machine interface (HMI);
- Operators can become fully proficient after brief professional training.
Comprehensive Functionality
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Flexible Configuration:
- Human-centered setup module allows on-site customization of:
- Operating mode
- Print interval
- Real-time displacement monitoring
- Pressure compensation method
- Water-cement ratio detection mode (ionization or differential pressure type)
- Human-centered setup module allows on-site customization of:
-
Advanced Monitoring Capabilities:
- Real-time online monitoring of four key parameters: flow rate, pressure, water-cement ratio, and deformation (heave);
- Supports online pressure loss compensation and automatic cumulative calculation of sand admixture, enhancing grouting accuracy and quality control.
Cutting-Edge Technology
- Built-in thermal printer for instant on-site printing;
- Equipped with a USB interface for seamless integration with the company’s proprietary grouting data management software;
- Enables automatic archiving of grouting records and retrieval/printing of original packer test (Lugeon test) data—significantly improving post-construction documentation efficiency.
High Reliability & Stability
- Fully sealed enclosure design provides excellent dustproof, moisture-resistant, and EMI shielding performance;
- Integrated precision voltage regulator and signal isolator ensure stable operation in harsh construction environments.
2 General Technical Specifications
Parameter Value Power Supply AC 220V ± 20% Frequency 50 Hz Power Consumption < 40 W Operating Temperature –10°C to +45°C Relative Humidity ≤ 85% RH Altitude < 3500 m Insulation Resistance > 20 MΩ
3 Detailed Technical Parameters
Main Unit Specifications
Parameter Specification Number of Channels 1 Sampling Rate 30 samples/second Max Data Recording Duration per Session < 24 hours Display 320 × 240 monochrome LCD Built-in Printer Thermal Operating Temperature –5°C to +45°C Sensor Specifications
Pressure Transmitter
- Measurement Range: 0–10 MPa
- Accuracy (FS): ±0.1%
- Pressure Resolution: 0.01 MPa
- Overpressure Tolerance: 120%
- Connection Type: M20 × 1.5
- Output Signal: 4–20 mA
Flow Meter
- Measurement Range: 0–150 L/min
- Accuracy (FS): ±0.07%
- Flow Resolution: 0.1 L/min
- Power Supply: AC 220V ± 20%
- Compatible Pipe Diameter: D40 mm (customizable)
- Output Signal: 4–20 mA
Density Meter
- Measurement Range: 1.0–2.2 g/cm³
- Accuracy (FS): ±0.5%
- Density Resolution: 0.01 g/cm³
- Output Signal: 4–20 mA
Displacement Sensor (Heave Monitoring)
- Measurement Range: 0–5000 μm
- Accuracy (FS): ±0.002%
- Heave Resolution: 0.1 μm
- Output Signal: 0–5 V
Hunan Nuowei Technology Co., Ltd
Hunan Nuowei Technology Co., Ltd
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