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Product Details
1. Overview
The HM-D1 Automatic Potentiometric Titrator is a precision analytical instrument integrating high accuracy, intelligent control, and modular design. The platform supports various titration modes including acid-base, redox, precipitation, and complexometric titration.
The instrument adopts an advanced Android 10 intelligent operating system and is equipped with a 7-inch high-definition touchscreen, providing intuitive and smooth operation. With excellent core performance, the titration repeatability is ≤0.2%. It supports real-time monitoring and compensation of multiple parameters such as potential, pH, and temperature.
The instrument features built-in professional routine titration and dedicated titration modes. It can flexibly meet research and development needs while efficiently completing standard testing and directly outputting sample content results.
With a high-precision fluid control system, large-capacity data storage, complete audit trail functionality, and multiple data interfaces, this series of instruments serves as an efficient analytical platform for laboratory quality control and scientific research.
2. Principle
The automatic potentiometric titrator operates based on the changes in electrochemical parameters of the solution during the titration process. High-precision sensors monitor these changes in real time, and the system intelligently determines the endpoint to achieve automated quantitative analysis.
During titration, the potential difference (or pH value) between the indicator electrode and the reference electrode changes as the titrant is added. The instrument continuously collects signals with a high resolution of 0.1 mV (or 0.01 pH), generates a potential-volume curve, and automatically identifies the inflection point or sudden jump point of the curve using intelligent algorithms to accurately determine the titration endpoint.
It is suitable for four major types of titration reactions: acid-base, redox, precipitation, and complexometric titration.
Through the integration of sensors and an intelligent control system, the instrument automatically performs precise liquid addition, signal acquisition, data processing, and endpoint determination, ensuring high accuracy, high repeatability, and ease of operation.
3. Reference Standards
JJG 814-2015 Verification Regulation of Automatic Potentiometric Titrators
GB/T 29252-2012 Rules for Quality Inspection of Laboratory Instruments and Equipment
GB 4793.1-2007 Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use – Part 1: General Requirements
4. Applications
The automatic potentiometric titrator, with its comprehensive titration modules and high-precision measurement performance, is widely used in quality control and scientific research across various industries.
In the food safety field, it can be used to determine acid value and peroxide value in edible oils, amino nitrogen in soy sauce and vinegar, as well as acidity and alkalinity in various food products.
In environmental monitoring, it is suitable for water quality analysis, including parameters such as chemical oxygen demand (COD), chloride ions, and ammonia nitrogen.
In the pharmaceutical and cosmetics industries, it can be used for active ingredient determination, pH and conductivity monitoring of solutions, and cleaning validation.
In the petrochemical field, it is used for analyzing acid value, base value, sulfur content in petroleum products, and purity of chemical raw materials.
In addition, the instrument is widely applied in universities and research institutes for chemical teaching and experimental research, providing a reliable analytical tool capable of meeting both basic titration and complex system analysis requirements.
5. Features
Intelligent Android system and touch interaction: Equipped with Android 10 system and a 7-inch high-definition capacitive touchscreen, providing intuitive and smooth graphical operation.
High accuracy and repeatability: Titration repeatability ≤0.2%, ensuring reliable and accurate endpoint determination.
Integrated precision fluid system: Valve burette integrated design, supporting quick replacement of 10 mL/20 mL burettes; resistant to acids, alkalis, and organic solvents for long-term stability.
★ Dual titration modes:
Routine titration mode: Users can customize parameters to directly determine analyte concentration, suitable for R&D and unknown sample analysis.
Dedicated titration mode: Users can create, save, and call specific methods based on standards or internal procedures, enabling one-click standardized analysis and direct result output.
Multiple endpoint detection methods: Supports potentiometric and pH titration with dynamic, equivalence point, preset endpoint, and manual modes.
★ Powerful method and data management: Supports creation, editing, storage, and quick access of titration methods; built-in substance library and customizable formulas; stores up to 100,000 data records with full titration curves.
Complete data integrity: Supports three-level user permission management and full audit trail, compliant with GLP/GMP requirements.
Convenient data output and connectivity: Built-in thermal printer with USB, Wi-Fi, and Ethernet interfaces for printing, exporting, and LIMS integration.
System reliability and easy maintenance: Power-off protection to prevent data loss; system self-diagnosis and alarm settings; software upgrade via USB or network.
Multi-language and user-friendly design: Supports Chinese and English interface switching, with operation guides and instructional videos.
6. Technical Parameters
1. General Titration Performance
Repeatability: ≤0.2%
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
2. General Measurement Performance
Potential: -2000 mV to +2000 mV; resolution 0.1 mV; error ±0.25‰ FS; stability ±0.3 mV/3h
pH: 0–14; resolution 0.01; error ±0.01 pH
Temperature: -5–105°C; resolution 0.1°C; error ±0.2°C
3. System & Physical Specifications
OS: Android 10
Display: 7-inch touchscreen
Storage: 100,000 records
Interfaces: USB, Wi-Fi, Ethernet
Printer: Built-in thermal printer
Power: AC 110–240V, 50–60Hz
Working environment: 0–40°C, 10–75% RH
Storage environment: 0–40°C, 10–90% RH
Dimensions: 310 × 226 × 233 mm
Weight: approx. 3.7 kg
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