Hanna HI83749-01 Portable Turbidity and Bentonite Check Meter
- NTU Range: 0.00 to 1200 NTU
- Light Source: Tungsten filament lamp
- LOG Memory: 200 records
- Auto Shut-Off: After 15 minutes of non-use
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Description
Unlocking Perfect Clarity for Your Wine
The Hanna HI83749-01 Portable Turbidity and Bentonite Check Meter is a game-changer for winemakers and enthusiasts who are passionate about achieving the highest quality in their final product. This advanced instrument, specifically designed for wine, is the ultimate tool for ensuring the stability and clarity of your beverage before bottling. By measuring turbidity from an expansive range of 0.00 to 1200 NTU (Nephelometric Turbidity Units), it provides a level of precision and insight that is essential for both small-scale hobbyists and medium-sized wineries. The meter’s design is rooted in a state-of-the-art optical system that guarantees consistently accurate results, ensuring long-term stability and expertly minimizing stray light and color interference. This robust functionality allows winemakers to tackle one of the most persistent challenges in the industry: preventing protein haze. The system even compensates for variations in lamp intensity, though proper calibration is always recommended to ensure validated and comparable measurements that comply with regulatory requirements. The 25 mm round cuvettes, made from a special optical glass, further guarantee the repeatability of your turbidity measurements, providing you with reliable data every time.
A Deeper Dive into Haze Formation
To truly appreciate the value of the HI83749-01, it’s important to understand the science behind wine turbidity. Unrefined wine is naturally cloudy and hazy due to suspended solids generated during fermentation. Winemakers often add fining agents to reduce this cloudiness, which is commonly referred to as protein haze. The primary culprits behind this haze are Thaumatin-like proteins (TLPs) and chitinases. These proteins are positively charged and, when they degenerate, they stick together to form undesirable flocculent clouds, creating visible haziness that can ruin the visual appeal of the wine. Preventing this protein haze or sediment in bottled white wines is a universal concern in winemaking, and it’s a critical step that must be addressed before the bottling process begins. The HI83749-01 provides a rapid and reliable method to check for this risk, allowing you to take proactive steps to ensure your wine remains beautifully clear.
Bentonite’s Role in Protein Stabilization
Bentonite is a commonly used stabilization agent and is a type of volcanic clay that acts as a fining agent, similar to kaolin. Its primary purpose is to improve the clarity of the wine. However, its use requires careful handling as it can also have negative side effects, such as a reduction in tannin and color, and the formation of a significant volume of lees. Because different types and qualities of bentonite have varying capacities for protein removal, it is absolutely essential for winemakers to perform laboratory trials using the exact lot and wetting degree of bentonite that will be used in the cellar. While protein stabilization is less of an issue in bottled red wines due to their higher concentration of phenols that naturally bind and precipitate with unstable proteins, a small amount of bentonite (about 12 g/hL) is often added to improve membrane filterability. For wines with low phenol content, such as rosé, light reds, and whites, a check for protein stability with the Hanna HI83749-01 is a necessary pre-bottling step. The instrument helps you define the right amount of bentonite to be added, preventing costly overdosing that can strip the wine’s flavor and body.
Fast Tracker: Simplifying Your Workflow
Winemaking involves a meticulous process with countless variables, and the HI83749-01 is designed to streamline your workflow with its innovative Fast Tracker™ – Tag Identification System (T.I.S.). This system makes data collection and management more efficient than ever before. Winemakers can record the time and location of a specific measurement or a series of measurements using iButton® tags placed on individual tanks. Each iButton® tag contains a computer chip with a unique identification code housed in a stainless-steel casing, making it incredibly durable and reliable. With Fast Tracker™, you can take quick and easy readings, ensuring that all your data is accurately tied to the correct tank and time. This level of organization is invaluable, especially when working in a busy cellar with multiple batches of wine. The system allows you to log up to 200 measurements in the internal memory, which can be easily recalled at any time for review or analysis.
Ensuring Accuracy with a Rigorous Calibration
Accuracy is paramount in winemaking, and the Hanna HI83749-01 ensures your measurements are valid and reliable through its comprehensive calibration features. The meter comes with AMCO AEPA-1 Primary Turbidity Standards, which are recognized as primary standards by the USEPA. These non-toxic standards are composed of uniform styrene divinylbenzene polymer spheres that are stable and reusable, with a long shelf life. You can perform a two, three, or four-point turbidity calibration using the supplied standards (<0.1, 10, 100, and 500 NTU), and the calibration points can be modified if you prefer to use your own user-prepared standards. The instrument also features a complete GLP (Good Laboratory Practice) function, which allows for full traceability of calibration conditions, including calibration points, date, and time. This level of traceability is crucial for quality control and for meeting regulatory requirements, giving you the confidence that your measurements are consistently validated and trustworthy.
The Science Behind the Measurement Process
The precision of the HI83749-01 is a result of its sophisticated optical system. To measure turbidity, the meter passes a light beam through the wine sample, which is then scattered in all directions by the suspended particles. The intensity and pattern of the scattered light are influenced by various factors, including the wavelength of the incident light, the size and shape of the particles, their refractive index, and the color of the sample. The optical system of the meter is composed of a tungsten filament lamp, a scattered light detector at a 90° angle, and a transmitted light detector at a 180° angle. A powerful microprocessor then uses an effective algorithm to calculate the NTU value from the signals received by these two detectors. This algorithm is also used to correct and compensate for any color interferences, ensuring that the turbidity reading is accurate and representative of the true haze level. The optical system and measurement technique also effectively compensate for fluctuations in lamp intensity, which minimizes the need for frequent calibration.
The Hanna Promise: Quality and Authenticity
When you choose the Hanna HI83749-01 Portable Turbidity and Bentonite Check Meter, you’re investing in a product that is designed for excellence and backed by a commitment to quality. At tpt24, we are proud to be the world’s leading online store for this exceptional product. We guarantee that every HI83749-01 we sell is 100% authentic and comes with a quality assurance that is unmatched. We understand the importance of having reliable, genuine equipment for your winemaking process, and we ensure that our products are delivered to you with authenticity and quality guaranteed, no matter which country you are in. Our commitment to our customers is to provide a seamless shopping experience and to deliver the best possible tools to help you create truly magnificent wine.
The Significance of a Clear Final Product
The ultimate goal for any winemaker is to produce a product that is not only delicious but also visually appealing. The clarity of a wine is often the first thing a consumer notices, and a hazy or cloudy appearance can be off-putting. The Hanna HI83749-01 empowers you to take control of this critical aspect of winemaking. By performing a rapid test with the meter, you can verify the risk of future protein haze formation. If instability is detected, you can then perform a fining trial to determine the precise amount of bentonite needed to stabilize the wine. The process involves taking an initial turbidity reading, adding the pre-made HI83749-20 Bentocheck Solution, and then taking a second reading. If the second reading is less than the initial reading plus 2 NTU, the wine is considered stable. This simple but effective method ensures that you avoid overdosing on bentonite, which not only saves you money but also prevents the loss of the wine’s delicate flavor, body, and color.
Specifications
| Feature | Specification |
|---|---|
| SKU | HI83749-01 |
| NTU Range | 0.00 to 1200 NTU |
| NTU Resolution | 0.01 to 1 NTU |
| NTU Accuracy | ±2% of reading plus 0.05 NTU |
| Repeatability | ±1% of reading or 0.02 NTU |
| Stray Light | < 0.05 NTU |
| Light Source | Tungsten filament lamp |
| Light Detector | Silicon Photocell |
| Method | Ratio Nephelometric Method |
| Calibration | Two, three or four points |
| Display | 60 x 90mm backlit LCD |
| LOG Memory | 200 records |
| Serial Interface | RS232 or USB 1.1 |
| Environment | 0 to 50°C (32 to 122°F) |
| Power Supply | 4 x 1.5V AA batteries or AC adapter |
| Auto Shut-Off | After 15 minutes of non-use |
| Dimensions | 224 x 87 x 77 mm |
| Weight | 512 g |
| Warranty | 2 years |













