Hanna HI9146W Portable Dissolved Oxygen Meter for Wine

Description

A Comprehensive Overview of the HI9146W Dissolved Oxygen Meter for Wine

The Hanna Instruments HI9146W is a rugged and portable dissolved oxygen (DO) meter designed specifically for the wine industry. It brings laboratory-grade precision and accuracy directly to the field, making it a reliable tool for wine analysis and production. This meter is built to withstand harsh industrial and environmental conditions, ensuring durability and consistent performance. With features such as automatic calibration, temperature, salinity, and altitude compensation, the HI9146W simplifies complex measurements. Its user-friendly design includes a Backlit LCD for easy viewing in any lighting condition and a Battery Error Prevention System (BEPS) that alerts the user when power is low, guaranteeing reliable readings. The HI9146W is supplied as a complete kit, including the polarographic probe, membrane caps, electrolyte solution, and a durable carrying case, so you can start using it right away.

The Polarographic Measuring System at Work

The HI9146W and its probe utilize a polarographic sensor technology based on the Ross and Clark measurement method. The probe itself consists of a platinum cathode and a silver anode, which are submerged in an electrolyte solution and held in place by a polymer membrane. An external voltage is applied across this system, which establishes a current that is directly proportional to the concentration of dissolved oxygen in the sample. This precise method ensures highly accurate and repeatable measurements. Furthermore, the replaceable membrane caps are pre-tensioned and feature a screw-cap design, allowing them to be changed quickly and easily. You simply fill the cap with the HI7041 electrolyte solution and screw it onto the DO probe.

Simplifying Measurements with Automatic Features

One of the key features of the HI9146W is its Automatic Calibration system. Calibration can be performed at one or two points to 100% and/or 0% saturation. The 100% saturation is done in air, while the 0% saturation requires the use of the HI7040 bicomponent zero oxygen solution. Additionally, the meter provides Automatic Temperature Compensation, which adjusts all readings for temperature variations using a built-in, linearized thermistor sensor. This ensures accuracy regardless of the sample’s temperature. The Auto End Point feature is another time-saving function. When this mode is selected, the reading on the display will freeze once a stable measurement is obtained. This feature helps ensure consistency among different users by guaranteeing that a stable reading has been reached before it is recorded.

Specialized Applications in Winemaking

Dissolved oxygen is a commonly measured parameter in wine analysis. The HI9146W is particularly well-suited for measuring DO levels during the fermentation and aging processes of both beer and wine. An important Application Note is that while the HI9146W is excellent for these stages, it is not recommended for use during the bottling process. This is because the optimal DO levels are different for each stage. During the aging process, wine can have a DO range of 6-9 mg/L, while most bottled wines should be below 1.25 mg/L for reds and 0.6 mg/L for whites. The HI9146W’s DO range of 0.00 to 45.00 ppm (mg/L) makes it highly effective for monitoring these critical stages.

Comprehensive Data Management and User Support

The HI9146W also includes Good Laboratory Practice (GLP) features. This function allows the user to recall important calibration information, including the date, time, and calibration points. This capability is crucial for maintaining quality control and ensuring accurate records. The Battery Error Prevention System (BEPS) is a thoughtful addition that detects when the batteries are becoming too weak to provide reliable measurements. When the batteries get low, the backlight is automatically disabled, and a clear warning is displayed to the user. This prevents unreliable data from being recorded due to a low battery.

Beyond the Lab: Field-Ready Design

The HI9146W is a truly portable device, weighing only 300g (10.6 oz.). Its compact dimensions of 185 x 72 x 36 mm (7.3 x 2.8 x 1.4 in.) make it easy to carry in the included rugged case. The meter also features adjustable Altitude Compensation for up to 4000 meters, with a 100-meter resolution. Similarly, Salinity Compensation is adjustable from 0 to 80 g/L (ppt) with a 1 g/L resolution, which is useful for measurements in brackish and seawater. These compensations ensure that environmental factors do not compromise the accuracy of your readings.

The Superior Choice for Wine Professionals

The Hanna Instruments HI9146W is more than just a tool; it is a comprehensive solution for professionals in the wine industry. It combines durability, advanced features, and a user-friendly design to deliver highly accurate and reliable dissolved oxygen measurements in any environment. Its specialized probe and compensation features make it the ideal choice for monitoring the critical fermentation and aging processes. The online store tpt24 is the world’s leading retailer of this product, delivering it with guaranteed authenticity and quality to any country.