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Product Details
Product Introduction
The HM-D4 is the flagship model in the HM-D series, delivering the most comprehensive titration capability in a single instrument. It integrates all six titration methods — the four fundamental types (acid-base, redox, precipitation, complexometric) plus conductivity detection and dead-stop endpoint detection — providing a complete analytical workstation that eliminates the need for multiple dedicated instruments.
Designed for professional laboratories handling diverse analytical workflows, the HM-D4 switches seamlessly between potentiometric, pH, conductivity, and amperometric detection modes. The conductivity module spans 0.00 μS/cm to 2,000 mS/cm, while the dead-stop module offers three polarization voltages (30/50/100 mV) with 0.00–200 μA current monitoring. This breadth of capability makes the HM-D4 equally effective for food safety screening, pharmaceutical compliance testing, and environmental analysis.
The instrument's Android 10 platform, 7-inch touchscreen, dual titration modes, 100,000-record storage with full audit trail, and multi-format data export ensure it meets the demanding requirements of GLP/GMP-regulated environments while remaining accessible for teaching and research applications.
Applications
Comprehensive Pharmaceutical QC: All pharmacopeia-required titration methods including iodometry, diazotization, acid-base, and non-aqueous titration
Food Safety Laboratory: Acid value, peroxide value, amino acid nitrogen, sulfite, and preservative analysis across diverse food matrices
Environmental Water Analysis: COD, chloride, ammonia nitrogen, conductivity-based monitoring, and residual oxidant determination
Petrochemical Testing: Oil acid/base value, sulfur content, and chemical raw material purity analysis
Research & Development: Flexible multi-method platform for method development and complex sample matrix studies
University Teaching Labs: Comprehensive titration education covering all fundamental and advanced techniques
Features
Six Titration Methods in One Platform: Acid-base, redox, precipitation, complexometric, conductivity, and dead-stop — no separate instruments needed.
Multi-Detection System: Potentiometric (±2,000 mV), pH (0–14), conductivity (0–2,000 mS/cm), and amperometric (0–200 μA) detection in a single unit.
Professional Data Management: Method library with custom formulas, 100,000-record storage, titration curve recording, and substance database.
Full GLP/GMP Compliance: Three-level user permissions, complete audit trail, power-off protection, and system self-diagnosis with alarms.
Android 10 Intelligence: 7-inch capacitive touchscreen with real-time multi-parameter curve display across all detection modes.
Dual Titration Mode: Conventional mode for custom R&D workflows; Specialized mode for one-click standard method execution with direct result output.
Comprehensive Connectivity: PDF/Excel export, built-in thermal printer, Wi-Fi LIMS upload, USB and Ethernet — full laboratory integration.
Precision Fluid Control: ≤0.2% repeatability, ±1.5% analysis error, quick-swap 10/20 mL burettes, corrosion-resistant fluid path.
Automatic Maintenance: Built-in air bubble removal, cleaning, and pipe evacuation routines; software upgradeable via USB or network.
Multi-Language Interface: Chinese/English switching with built-in operation help and instructional tutorial videos.
Main Parameters
| Parameter | Value |
|---|---|
| Titration Methods | Acid-base, Redox, Precipitation, Complexometric, Conductivity, Dead-stop |
| Titration Repeatability | ≤ 0.2% |
| Titration Error | ≤ ±1.5% |
| Potential Range | -2,000 mV ~ +2,000 mV (0.1 mV resolution) |
| pH Range | 0 ~ 14 pH (0.01 pH resolution) |
| Conductivity Range | 0.00 μS/cm ~ 2,000 mS/cm (±1.0% FS) |
| Dead-Stop Polarization | 30 mV, 50 mV, 100 mV (±1 mV) |
| Dead-Stop Current | 0.00 μA ~ 200 μA (±1.0% FS) |
| Temperature Range | -5 ~ 105 °C (0.1 °C resolution) |
| Data Storage | 100,000 records |
Technical Parameters
| Category | Parameter | Value |
|---|---|---|
| Titration Performance | Repeatability | ≤ 0.2% |
| Analysis Error | ≤ ±1.5% | |
| 10 mL Burette | Accuracy ±5 μL, Error 10 μL/10 mL | |
| 20 mL Burette | Accuracy ±10 μL, Error 20 μL/10 mL | |
| Potential Measurement | Range | -2,000 mV ~ +2,000 mV |
| Resolution | 0.1 mV | |
| Basic Error | ±0.25‰ FS | |
| Stability | ±0.3 mV / 3 h | |
| pH Measurement | Range | 0 ~ 14 pH |
| Resolution | 0.01 pH | |
| Basic Error | ±0.01 pH | |
| Conductivity | Range | 0.00 μS/cm ~ 2,000 mS/cm |
| Basic Error | ±1.0% FS | |
| Stability | ±1.0% FS | |
| Dead-Stop | Polarization Voltages | 30 mV, 50 mV, 100 mV (±1 mV) |
| Current Range | 0.00 μA ~ 200 μA | |
| Current Error | ±1.0% FS | |
| Temperature | Range | -5 ~ 105 °C |
| Resolution | 0.1 °C | |
| Basic Error | ±0.2 °C | |
| System Specifications | Operating System | Android 10 |
| Display | 7-inch capacitive touchscreen | |
| Data Storage | 100,000 records | |
| Data Interface | USB, Wi-Fi, Ethernet | |
| Data Export | PDF, Excel | |
| Printer | Built-in thermal printer | |
| Power Supply | AC 110~240V, 50~60 Hz | |
| Operating Environment | 0~40 °C, 10%~75% RH | |
| Storage Environment | 0~40 °C, 10%~90% RH | |
| Dimensions / Weight | 310×226×233 mm / ~3.7 kg |
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