Hanna HI96832 Digital Refractometer for Propylene Glycol Analysis

Description

An Advanced Tool for Glycol Analysis

The Hanna HI96832 Digital Refractometer is a robust and portable instrument that leverages the principle of refractive index to accurately determine the percent volume and freezing point of propylene glycol-based solutions. This device is engineered for simplicity and reliability, eliminating the guesswork often associated with traditional mechanical refractometers. It provides swift, precise measurements within a mere 1.5 seconds, with all readings automatically adjusted for temperature variations through its Automatic Temperature Compensation (ATC) feature. The user-friendly design includes a durable stainless steel sample well and a high-grade flint glass prism, which are not only resistant to corrosion but also incredibly easy to clean. A quick wipe with a soft cloth is all that’s needed to prepare the device for the next sample, making it an ideal tool for both laboratory and field use. The instrument’s IP65 water-resistant casing further ensures its durability and performance in demanding environments.

The Critical Role of Propylene Glycol

Propylene glycol is a versatile chemical compound with a wide range of applications, including its use as an antifreeze agent. In many industries, particularly those involving food and beverage processing like beer and wine production, it is a key component in glycol chillers and dispensing systems. For these systems to function effectively and safely, it’s crucial to maintain the correct concentration of propylene glycol. If the concentration is too low, the solution could freeze and potentially cause costly damage to the system by rupturing pipes and components. Conversely, a concentration that is too high can significantly reduce the system’s overall efficiency. The Hanna HI96832 is specifically designed to help users accurately monitor these concentrations, ensuring optimal performance and protection for their equipment.

Refractive Index and Its Core Principle

The HI96832 operates on a fundamental scientific principle: the measurement of a solution’s refractive index. Refractive index is an optical property of a substance that describes how light “bends” or changes direction as it passes through it. It’s a direct reflection of the concentration of dissolved particles within the solution. The device uses an internal Yellow LED light source to shine a beam through a prism in contact with the sample. A linear image sensor then detects the “critical angle,” which is the point at which the light is no longer refracted but is instead reflected. This critical angle is directly related to the refractive index of the sample. The HI96832’s advanced algorithms then take this measurement, apply the necessary temperature compensation, and convert it into a meaningful value of either percent volume or freezing point. This process is based on internationally recognized references, such as the CRC Handbook of Chemistry and Physics, to ensure the highest level of accuracy and reliability.

Ease of Use and Simple Calibration

The HI96832 stands out for its straightforward operational design, which makes it accessible to both experienced professionals and new users. The device is ready for use after a simple, one-point calibration using distilled or deionized water. This process is quick and hassle-free; simply add the distilled water to the sample well and press the “ZERO” key. The instrument then automatically calibrates itself, and the calibration data is retained even if the device is turned off. The user can easily switch between measurement units (% Volume or Freezing Point) by pressing the “RANGE” key. The large, dual-level LCD simultaneously displays the measurement value and the temperature, providing all the necessary information at a glance. This simplicity ensures that accurate measurements can be taken efficiently on-site.

A Comprehensive Tool for Varied Applications

While the HI96832 is a specialized tool for propylene glycol analysis, its versatility allows for a broad range of applications where propylene glycol is used. Beyond industrial chillers, propylene glycol is found in a wide variety of products. It is used as a pharmaceutical solvent, a humectant food additive, and an emulsification agent. Its moisturizing properties make it a common ingredient in cosmetics, toothpaste, and tobacco products. Furthermore, it’s a key component in hand sanitizers and lotions. This refractometer provides a quick and reliable way to check the concentration of propylene glycol in any of these solutions, making it an invaluable tool for quality control and assurance across multiple industries.

Small Sample Size for Efficiency

One of the most practical features of the HI96832 is its ability to perform accurate measurements with a very small sample volume. The device requires only 100 µL of sample, which is equivalent to just two metric drops, to completely cover the prism. This minimal requirement is highly beneficial, as it reduces waste and allows for multiple measurements from a small source, a critical factor in laboratory settings and when working with expensive or limited samples. This efficiency, combined with the device’s rapid response time of 1.5 seconds, makes it a highly productive tool for any application requiring repeated or fast analysis.

Guaranteed Quality and Support Worldwide

The HI96832 is a product of Hanna Instruments’ extensive experience and reputation as a leading manufacturer of analytical instruments. The company provides a two-year warranty against defects in workmanship and materials, ensuring a high level of confidence in the product’s quality and durability. When service is required, customers can contact their local Hanna Instruments office for support. For any technical queries, the company provides a dedicated email support channel and a worldwide contact list. Furthermore, for customers looking to purchase this exceptional product, the online store tpt24 is the leading online retailer worldwide, delivering the HI96832 with a guarantee of authenticity and quality to any country.

Advanced Features for Unmatched Performance

The HI96832 is packed with features designed to enhance its performance and user experience. Its Automatic Temperature Compensation (ATC) feature is crucial for maintaining accuracy, automatically adjusting readings to account for variations in sample temperature between 0.0 and 40.0 °C. The device also includes a low power indicator and automatically shuts off after three minutes of non-use to conserve battery life, allowing for up to 5000 readings on a single 9V battery. An easy-to-read Liquid Crystal Display (LCD) with a dual-level screen shows both the measurement and temperature simultaneously. Additionally, the instrument’s IP65 enclosure rating provides water-resistant protection, ensuring that the device can withstand splashes and spills in the field or lab. These features collectively make the HI96832 a highly reliable and efficient tool for professional use.