เครื่องวัดสารละลายออกซิเจน ในน้ำ (DO METER)

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Hanna HI9146-04 Portable D.O. Meter for Field Application SKU: HI9146-04 Description HI 9146 is a water-resistant, microprocessor-based, Dissolved Oxygen meter with automatic temperature compensation (ATC). D.O. measurements can be displayed in parts per million (ppm=mg/L) or in % of saturation. The temperature range is indicated in Celsius from 0 to 50°C with 0.1 resolution. This meter also allows manual compensation of altitude and salinity values. The polarographic probe, supplied with the instrument, is provided with a protective cover for the membrane. A HOLD button allows the user to freeze readings on the LCD. HI 9146 can be powered with batteries (with low battery indicator) or through a 12 Vdc adapter. Specifications Range O2 0.00 to 45.00 mg/L Range % Saturation O2 0.0 to 300.0% Range Temperature 0.0 to 50.0°C Resolution O2 0.01 mg/L Resolution % Saturation O2 0.1% Resolution Temperature 0.1°C Accuracy O2 ±1.5% F.S. Accuracy % Saturation O2 ±1.5% F.S. Accuracy Temperature 0.5°C Calibration automatic, in air, at 100% Temperature Compensation automatic, 0 to 50°C (32 to 122°F) Altitude Compensation 0 to 4 km (resolution 0.1 km) Salinity Compensation 0 to 80 mg/L (resolution 1 g/L) Probe HI 76407/4F with 4 m cable Power Supply 4 x 1.5 AA batteries / approx. 200 hours of continuous use; auto-off after 4 hours of inactivity; or input for 12 Vdc power adapter Environment 0 to 50°C (32 to 122°F); RH max 100% Dimensions 196 x 80 x 60 mm (7.7 x 3.1 x 2.4\') Weight 500 g (1.1 lb.) Order Info HI 9146-04 is supplied with HI 76407/4F probe with 4m (13\') cable and protective cap, 2 spare membranes, HI 7041S electrolyte solution (30mL), batteries, hard carrying case and instructions.