HI9810-61 · HI9811-51· HI9812-51 pH/EC/TDS/ Temperature Portable Meters • Waterproof • Automatic Temperature Compensation · All readings are compensated for variations in temperature • Low battery indicator HI9810-61 is a pH/EC/TDS meter designed to measure pH, μS/cm, mg/L and temperature in hydroponics, greenhouse, farming and ground water applications. HI9810-6 features Cal Check™, which allows the user to easily check the probe calibration status at any time. The HI9812-51 and HI9811-51 are pH/EC/ TDS meters for agriculture, greenhouse and hydroponics applications. These meters feature a large LCD which displays either pH, EC, TDS or temperature readings along with tutorial instructions. The pH readings are displayed with a 0.1 resolution and an accuracy of +/-0.1 pH while the EC and TDS readings are displayed with a 10 mS/cm and 10 ppm (mg/L) resolution and 2% full scale accuracy. The temperature correction coeÁcient (ȕ) is ¯xed at 2 %/°C and allows for automatic temperature compensated measurements of EC and TDS. These meters are calibrated manually to a single point with the use of two trimmers. pH is calibrated to pH 7.01 while EC/TDS is calibrated to either 1.41 mS/cm (1413 µS/cm) or 1500 ppm. The LCD screen has battery life indicator as well as on-screen tutorial messages. No probe changes are required when switching your measured parameter between pH, conductivity and TDS. These multiparameter meters reduce the number of instruments required for daily water quality analysis. The supplied probe on all models feature a polypropylene body, ampli¯ed pH electrode with a built-in EC/TDS and temperature sensors. The ampli¯er for the pH electrode prevents interference from humidity and electrical noise from common sources including from motors, ballasts or pumps. 7 Multiparameter 7.84 | www.hannainst.com portable
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