Hanna HI934 Karl Fischer Coulometric Titrator
- Water Range: 1 ppm–5%
- Generator Current: Up to 400 mA
- Stirrer Speed: 200–2000 RPM
- Display: 5.7″ Color LCD
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Description
Advanced Solution For Precise Water Determination
The Hanna HI934 Karl Fischer Coulometric Titrator represents state-of-the-art technology in moisture analysis, engineered for laboratories and industries where precise water content determination is essential. Designed to measure water from as low as 1 ppm to 5%, this instrument incorporates advanced dosing algorithms, automatic drift correction, and optimized titration procedures to ensure reproducible results even under variable environmental conditions. Its compact format saves valuable laboratory space while maintaining uncompromising accuracy and performance. This titrator is enclosed in a durable, chemically resistant ABS and stainless steel housing to withstand demanding conditions. For scientists, technicians, and quality control professionals, the HI934 merges precision engineering with intuitive controls, making accurate analysis accessible at the touch of a button. By integrating robust components and intelligent software into a single platform, Hanna has created a powerful tool for reliable, high‑speed measurement that fulfills both modern laboratory and industry requirements.
Multiple Applications Across Scientific And Industrial Fields
The HI934 accommodates a diverse range of applications across sectors such as pharmaceuticals, food production, petrochemicals, environmental analysis, and research laboratories. In pharmaceutical manufacturing, it ensures moisture specifications in active ingredients and excipients meet regulatory standards. In the food and beverage industry—including dairy powders, chocolates, and baked goods—it provides rapid and accurate water content assessments to optimize product shelf life and quality. In petrochemical fields, it measures trace water in oils, fuels, and solvents to prevent corrosion and degradation. Environmental scientists use it for detecting moisture levels in soil samples or waste analysis. Its adaptability to both liquid and solid samples, with optional dissolution or extraction steps, expands usability across almost any material. Whether for baseline quality assurance or intricate R&D testing, the adaptable method programming and high sensitivity of the HI934 guarantee precision aligned with demanding specifications in virtually any vertical market.
Precision Engineering Enabled By Integrated Smart Features
One of the cornerstones of HI934 performance is its precision iodine generation system. Utilizing a pulsed current of up to 400 mA, this feature enables electrolytic titrant production in exact quantities required for the Karl Fischer reaction, avoiding over-delivery and reagent waste. A dual platinum pin polarization electrode ensures accurate endpoint determination, with user-selectable criteria including fixed mV persistence or drift rate‑based termination. Automatic generator type detection enables easy switching between diaphragm and diaphragm-less configurations, each suited to particular sample chemistries. Chemically resistant glass titration cells and PTFE tubing handle harsh Karl Fischer reagents without degradation, while a molecular sieve desiccant system secures low drift rates by preventing ambient humidity ingress. Together, these elements form a tightly controlled titration environment that keeps analysis consistent, efficient, and repeatable, enabling the HI934 to excel in both high‑volume production testing and specialized scientific applications.
Optimized User Interface And Data Management Tools
The HI934 offers a large 5.7‑inch color LCD display that presents titration methods, results, drift rates, and mV readings clearly during operation. Real-time titration curve visualization aids method optimization and research validation. The interactive UI is complemented by quick navigation virtual keys, avoiding long menu paths so operators can focus on their analysis. Data handling is comprehensive: up to 100 complete titration and drift rate reports can be stored internally, each customizable to meet specific GLP documentation needs. Export is equally streamlined—USB flash drive ports allow firmware updates, method transfers, or raw data export to PC via the HI900PC application software. Reports can be printed directly from the instrument using a standard parallel printer, or an external monitor, keyboard, and analytical balance can be integrated through designated rear-panel interfaces. By merging high visibility controls with flexible connectivity, the HI934 facilitates transparency, traceability, and compliance with global laboratory standards.
Exclusive Features For Laboratory Safety And Efficiency
Laboratory environments require both safety and efficiency, which the HI934 addresses through a combination of sealed reagent systems, ergonomic design, and user-centered functions. A sealed solvent system featuring ground glass joints prevents ambient humidity from compromising titration integrity and minimizes operator exposure to potentially harmful reagents. Solvents can be exchanged rapidly by adjusting quick-fit connections, reducing downtime between titrations. The integrated magnetic stirrer—adjustable from 200 to 2000 rpm with optical feedback—enables optimal mixing conditions for precise reaction completion without manual intervention. Automatic drift rate compensation accounts for anomalous water readings caused by environmental moisture intrusion, ensuring reported results reflect actual sample content only. Additionally, the multistage cell preparation cycle, inclusive of pre-titration drying and standby modes, maintains solvent integrity and analytical accuracy when the instrument is not actively in use. All these specialized functions combine to streamline workflow while maintaining high safety standards for operators.
Comprehensive Method Programming And Regulatory Compliance
The HI934 stores up to 100 standard or user-defined methods, allowing laboratories to develop and save protocols adapted to specific materials or client requirements. Hanna’s technical experts can integrate standardized methodologies from ISO, ASTM, AOAC, AOCS, and EPA directly into the system, ensuring compliance with internationally recognized testing norms. Customization extends to dosing parameters, endpoint criteria, conditioning times, and drift correction techniques, empowering professionals to fine-tune analysis without compromising data integrity. Onsite training and remote support ensure that every user can maximize the instrument’s potential from installation onward. By incorporating GLP record‑keeping, including electrode IDs, calibration dates, operator names, and company information, the HI934 simplifies auditing and regulatory review processes. Secure data management and versatile peripheral options permit seamless integration into any compliant laboratory infrastructure, making it a trusted choice for regulated industries where documentation precision is as important as measurement accuracy.
Technical Excellence Backed By Global Distribution Support
Beyond technical design, ownership of the HI934 is supported by robust global supply channels, making it accessible to professionals worldwide. Its carefully engineered enclosure materials (ABS, PC, and stainless steel) ensure durability across varied climates, with an operating range from 10°C to 40°C and up to 95% relative humidity. Storage tolerances extend from –20°C to 70°C, catering to laboratories with environmental extremes. Despite its advanced feature set, the instrument maintains a manageable weight of approximately 4.3 kg, facilitating easy relocation or shipping. The HI934 is available through tpt24.com, recognized as the world’s leading online store for this product. With guaranteed authenticity, quality assurance, and worldwide delivery, tpt24.com ensures customers in any country receive genuine Hanna Instruments equipment promptly and securely. A two-year warranty underscores Hanna’s confidence in product reliability, protecting your investment while securing uninterrupted laboratory operations.
Purpose-Built Design For Long-Term Laboratory Integration
The physical and operational design of the HI934 makes it a long-term asset for any laboratory. Dimensional efficiency with a footprint of 315 × 205 × 375 mm enables integration into spaces where benchtop equipment real estate is limited. Its modular generator configuration supports both fritted and fritless designs, allowing quick adaptation to evolving sample types over the instrument’s lifespan. Operator ergonomics are addressed through a polyester keypad with tactile feedback, aiding repetitive analysis tasks without strain. The integration of the sealed solvent handling system, dual platinum sensor, and dynamic dosing technology ensures consistency in results over years of use. With the ability to connect to analytical balances for automatic sample mass entry and to output comprehensive analysis reports to multiple peripherals, the HI934 is more than an analyzer—it is a complete moisture determination workstation. In any setting, from cutting-edge R&D to routine production control, this instrument offers sustained accuracy and operational reliability.
Specifications
| Model | HI934 |
| Measurement Range | 1 ppm to 5% |
| Resolution | 0.1 ppm to 0.0001% |
| Result Units | %, ppm, ppt, mg/g, µg/g, mg, µg, mg/mL, µg/mL, mg Br/100g, g Br/100g, mg Br, g Br |
| Sample Type | Liquid or solid with external dissolution/extraction |
| Pre-Titration Conditioning | Automatic |
| Background Drift Correction | Automatic or user-selectable |
| Endpoint Criteria | Fixed mV persistence, relative or absolute drift stop |
| Dosing Mode | Dynamic |
| Result Statistics | Mean, standard deviation |
| Generator Configuration | Diaphragm or diaphragm-less |
| Generator Current Control | Automatic or fixed (400 mA) |
| Titration Vessel Volume | 100–200 mL operating volume |
| Solvent Handling System | Sealed with integrated diaphragm air pump |
| Sensor Type | HI76330 dual platinum pin polarization electrode |
| Polarization Current | 1, 2, 5, or 10 µA |
| Voltage Range | 2 mV to 1100 mV |
| Voltage Resolution | 0.1 mV |
| Accuracy | ±0.1% |
| Programmable Stirrer | 200–2000 rpm, optically regulated |
| Display | 5.7-inch (320×240 pixel) color LCD |
| Methods Capacity | Up to 100 standard/user methods |
| Data Storage | Up to 100 titration/drift reports |
| Peripherals | PC, USB, analytical balance, printer, external keyboard |
| GLP Conformity | Full documentation and instrument data handling |
| Languages | English, Portuguese, Spanish, French |
| Enclosure Material | ABS, PC, stainless steel |
| Operating Environment | 10–40°C, up to 95% RH |
| Storage Environment | –20 to 70°C, up to 95% RH |
| Power Supply | 100–240 VAC (Type A or C plug) |
| Dimensions | 315 × 205 × 375 mm |
| Weight | Approx. 4.3 kg with pump, stirrer, sensors |
| Warranty | 2 years |









