Hanna Instruments is a global leader in analytical instrumentation, manufacturing portable and benchtop meters for testing water quality, environmental parameters, and food safety.
Hanna Instruments is a premier manufacturer of analytical instrumentation, renowned for delivering practical and affordable solutions for testing water quality, agriculture, and food safety. Founded in 1978, the company has grown into a global leader in the design and production of electro-analytical instrumentation. Their diverse product portfolio includes pH meters, conductivity testers, dissolved oxygen meters, turbidimeters, and titration systems.
Hanna Instruments is credited with numerous innovations, such as the first portable pH electrode with a built-in temperature sensor. Serving industries ranging from hydroponics and aquaculture to laboratory research and industrial wastewater treatment, Hanna's devices are designed for both field and lab use. They emphasize user-friendly interfaces, robust durability, and high accuracy, supported by a network of local technical support offices worldwide.
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Most Hanna pH testers require calibration using standard buffer solutions (commonly pH 4.01, 7.01, or 10.01). Immerse the probe in the buffer solution and use the calibration button or trimmer to adjust the reading to match the buffer value. Always rinse the probe with distilled water between buffers.
To maintain accuracy and longevity, store pH electrodes moist. Keep the protective cap filled with HI70300 storage solution or pH 4.01 buffer. Never store the electrode in distilled or deionized water, as this can damage the sensor.
A blinking battery icon generally indicates that the battery level is low (often below 10%). Replace the batteries immediately with the type specified in your product manual (commonly CR2032 or AAA) to prevent inaccurate readings due to low power.
You can find digital manuals on the official Hanna Instruments manuals usage site at manuals.hannainst.com, or specific product guides here on this page.