Hanna Calcium Hardness Portable Photometer-Meter Only - HI97720

Hanna HI97720 Calcium Hardness Portable Photometer is a high-precision and field-ready instrument designed for accurate measurement of calcium hardness in water samples, making it ideal for industrial, laboratory, and environmental monitoring applications. Operating within a measurement range of 0.00 to 2.70 mg/L (as CaCO₃), this photometer is specifically suited for applications where maintaining optimal hardness levels is critical, such as boiler systems, cooling towers, municipal water treatment, and process water quality control.

Engineered with an advanced optical system, the HI97720 incorporates a silicon photocell detector, a 525 nm LED light source, and a narrow 8 nm bandpass filter to deliver highly accurate, fast, and repeatable results. It utilizes the calmagite method adapted from Standard Methods (23rd Edition), ensuring dependable analytical performance aligned with recognized industry protocols. The inclusion of a reference detector further enhances measurement stability, minimizing drift and ensuring consistent readings across multiple test cycles.

Designed for user convenience and efficiency, the photometer features a built-in tutorial mode that guides users step-by-step through the testing process, making it suitable for both experienced technicians and new users. The CAL Check™ function allows quick verification of instrument accuracy before measurement, ensuring confidence in results. Additionally, the device supports GLP compliance by storing up to 50 readings, enabling proper documentation, review, and traceability.

Built for durability in demanding environments, the HI97720 features an IP67-rated rugged housing that provides protection against dust and water, making it suitable for both laboratory and field use. It operates effectively within a temperature range of 0 to 50°C and can withstand high humidity conditions, ensuring reliable performance in diverse settings. The automatic shut-off feature helps conserve battery life, making it efficient for extended use during field operations.

Widely used in water treatment facilities, environmental laboratories, industrial quality control, and research applications, the HI97720 offers a dependable combination of precision, durability, and ease of use. It is an essential tool for professionals who require accurate calcium hardness analysis to maintain water quality, prevent scaling, and ensure compliance with regulatory standards Portable Photometers