| Hardware Specifications | Main Control System | CPU Frequency: 240MHz (Dual-Core) |
| Flash Storage: 8MB |
| PSRAM: 8MB |
| Operating System: FreeRTOS |
| Operating Voltage: AC110/220V, 50/60Hz |
| Power Consumption: < 15W |
| Display System | Display Screen: 4.3–inch TFT Color Liquid Crystal Display |
| Resolution: 800x480 pixels |
| Color Depth: 16–bit High Color |
| Touch Panel: Capacitive Type |
| Measurement System | Load Cell: High–Precision Load Cell |
| Measurement Accuracy: 0.01g |
| Measuring Range: 0–300 g |
| Communication Interface | Communication Protocol: RS485 Modbus RTU |
| Software Functional Specifications | Measurement Function | Bulk Density Measurement: Measures the density of powder materials under natural accumulation conditions. |
| Calibration Function | Zero Calibration: Automatic or manual zero point calibration |
| Weight Calibration: Uses standard weights for weight calibration |
| User Interface Features | *Step–by–Step Wizard: 5–step guided measurement process* |
| Localized Interface: Complete English language support |
| On–screen Keypad: Numeric and decimal point input capability |
| Live Data Display: Real–time measurement values with status indicators |
| Profile Management: Save/load configuration profiles |
| Operational Process | Test Sequence | a. Tare Measurement: Weigh empty container or manually input tare mass |
| b. Guidance Prompt: Display step–by–step operational guidance |
| c. *Blade Configuration: Set leveling blade speed (e.g. 10mm/s) and traversal direction* |
| d. Gross Measurement: Weigh filled container or input total mass |
| e. Auto–Calculation: System computes bulk density (ρ = m/v) with digital display |
| f. Report Generation: Print test report with timestamp and parameters |
| Calibration Process | a. Enter calibration mode |
| b. Perform zero calibration |
| c. Place standard weights |
| d. Execute weight calibration |
| e. Verify calibration results |
| Data Management | Configuration Storage | Storage method: Custom file system |
| Stored content: Device parameters, test parameters, user settings |
| Backup function: Supports configuration file backup and restoration |
| Test Report | Report format: Automatically generates standard test reports |
| Print output: Built–in thermal printer |
| Report content: Test data, calculation results, device information |
| Safety and Reliability | Safety Features | Electrical safety: Complies with relevant electrical safety standards |
| Data protection: Configuration data protected by CRC verification |
| Fault detection: Real–time device status monitoring |
| Error handling: Comprehensive error detection and recovery mechanisms |
| Reliability | Hardware reliability: Industrial–grade components, MTBF > 10,000 hours |
| Software reliability: Watchdog protection, automatic recovery from exceptions |
| Environmental adaptability: Operating temperature 0–40°C, humidity <85% RH |
| Maintainability: Modular design for easy maintenance and upgrades |
| Technical Advantage | Measurement Accuracy | High–precision weighing: 0.01 g accuracy, meets precision measurement requirements |
| Automatic calculation: Eliminates manual calculation errors |
| Ease of Operation | Touch operation: Intuitive touchscreen interface |
| Guided workflows: Simplified procedures to reduce operational complexity |
| English interface: Full English display support for domestic and international users |
| System Integration | Unified communication: RS485 bus for centralized management of multiple devices |
| Modular design: Facilitates functional expansion and maintenance |
| Standardized protocol: Uses standard Modbus protocol for easy integration |
