Hanna HI97745 pH, Free and Total Chlorine, Total Hardness and Iron Low-Range Photometer

Description

Hanna HI97745 Photometer: A Revolutionary Tool for Water Quality Analysis

The Hanna HI97745 is an advanced portable photometer, representing the pinnacle of Hanna Instruments’ extensive expertise in analytical instrumentation. Designed for precision and reliability, this device leverages a superior optical system featuring a Light Emitting Diode (LED) and a narrow band interference filter, which together ensure consistently fast and accurate readings. This sophisticated design minimizes errors from power fluctuations and ambient temperature changes, providing a stable source of light for both blank and sample measurements. The photometer’s optical system is hermetically sealed, protecting it from dust, dirt, and water, ensuring top performance in any environment. Its user-friendly interface, coupled with an exclusive positive-locking system for cuvette placement, guarantees reproducible results every time, making it an indispensable tool for professionals and hobbyists alike. The device’s robust build and waterproof IP67 rating further underscore its durability and suitability for demanding fieldwork.

Versatility in Multiple Parameters Testing

The HI97745 is a multifunctional device capable of measuring five crucial parameters in water quality: pH, free and total chlorine, total hardness (including calcium and magnesium), and iron at a low range. This makes it an incredibly versatile instrument for various applications, particularly in the treatment and disinfection of drinking water, wastewater, and swimming pools. The instrument utilizes specific, well-established methods for each test, such as the Phenol Red Method for pH measurement and the DPD Colorimetric Method, adapted from US EPA Method 330.5, for chlorine analysis. For total hardness, it adapts the Standard Methods for the Examination of Water and Wastewater, 18th Edition, Colorimetric Method , and for iron, it uses an adaptation of the TPTZ Method. This comprehensive capability eliminates the need for multiple single-parameter devices, streamlining water testing procedures and providing a holistic view of water chemistry.

Enhanced Usability Through Intuitive Features

Hanna Instruments has incorporated several features into the HI97745 to enhance its usability and ensure reliable operation. The built-in tutorial mode is a stand-out feature that guides users step-by-step through the entire measurement process, from sample preparation to reagent addition, ensuring that even novice users can achieve accurate results with ease. The device also includes an auto-off function after 15 minutes of inactivity to conserve battery life, and a low battery warning system to prevent erroneous readings. For data management, the photometer automatically logs the last 50 measurements, which can be easily recalled through the Log Recall Menu, a critical feature for maintaining a historical record of test results. These thoughtful design choices make the HI97745 not just an instrument but a complete solution for mobile or benchtop water analysis.

A Deep Dive into Its Optical System

At the heart of the HI97745 lies an advanced optical system meticulously engineered for precision. The use of an LED light source provides significant advantages over traditional tungsten lamps. LEDs offer superior luminous efficiency, delivering more light with less power consumption, and they generate minimal heat, which is crucial for maintaining electronic stability. Furthermore, the narrow band interference filter ensures greater wavelength accuracy, resulting in a brighter, stronger signal and more stable, repeatable measurements. The inclusion of a focusing lens is a particularly clever innovation, as it collects all light exiting the cuvette, thereby eliminating errors caused by imperfections or scratches on the glass. This design means there is no need to index the cuvette, simplifying the testing process and reducing potential for user error.

Unwavering Confidence with CAL Check™ Validation

A unique and highly valuable feature of the HI97745 is the exclusive CAL Check™ functionality. This system provides a simple, stress-free way for users to validate the performance of their photometer at any time. By simply inserting certified CAL Check™ standards, which are made with NIST traceable standards, the meter guides the user through a validation process. The device provides a clear “PASSED” or “OUT OF SPECIFICATION” message, giving users complete confidence in the accuracy of their measurements. If the meter is out of specification, it can be calibrated to the standard, ensuring that results remain accurate over time. This proactive validation system not only saves time and money on potential re-testing but also provides a level of assurance that is critical in applications where measurement accuracy is paramount.

Designed for Durability and Real-World Use

The HI97745 is not just a high-tech instrument; it is built to endure the rigors of real-world use. Its rugged IP67-rated body is designed to withstand knocks, drops, and spills, making it perfectly suited for demanding fieldwork. The internal optics are fully sealed, providing comprehensive protection from outside dust, dirt, and water. This robust construction is particularly important for professionals who need a reliable tool in varied and challenging environments. The device’s portable design ensures it fits comfortably in the hand for on-the-go testing, while its backlit LCD display provides at-a-glance readings from any angle, day or night. The use of standard AA alkaline batteries further adds to its practicality, with a battery life of over 800 measurements without the backlight, offering peace of mind during extended use.

Broad Applications in Water Management

The applications of the Hanna HI97745 are extensive and critical for maintaining public health and safety. It is an ideal tool for professionals in the municipal water treatment sector, as it can accurately measure chlorine levels to ensure proper disinfection and pH to optimize the effectiveness of disinfectants. In wastewater management, its ability to measure total hardness and iron is crucial for monitoring treatment processes and preventing equipment damage. For swimming pool and spa maintenance, the photometer provides a quick and reliable way to check for free and total chlorine, ensuring that water is safe for swimmers and properly balanced. Furthermore, its portability makes it invaluable for environmental scientists conducting field studies on rivers, lakes, and other natural water sources. The comprehensive parameter range and precise measurement capabilities make it a cornerstone instrument for any application requiring meticulous water quality analysis.

Unparalleled Global Product Availability

The Hanna HI97745 photometer is more than just a high-quality instrument; it is a global benchmark in water analysis technology. To ensure that customers worldwide can access this essential tool, the online store tpt24 stands as the premier global retailer. As the leading online store for this product, tpt24 offers the HI97745 with an unwavering guarantee of authenticity and quality. No matter where you are in the world, tpt24 ensures that this state-of-the-art photometer is delivered to you, ready for immediate use. Their commitment to customer satisfaction and global reach makes acquiring this essential instrument simple and secure, solidifying their reputation as the top destination for water quality solutions.