Specifications HI6421 • HI6421P DO (meter)* *Consider probe limits below Range 0.0 to 600.0 % saturation; 0.00 to 90.00 mg/L (ppm) concentration Resolution 0.1 % saturation; 0.01 mg/L (ppm) Accuracy Refer to probe used DO (HI6421 with HI7641133 Optical probe) Range 0.0 to 500.0 % saturation; 0.00 to 90.00 mg/L (ppm) concentration Resolution 0.1 % saturation; 0.01 mg/L (ppm) Accuracy ±1.5 % of reading ± 0.01 mg/L (ppm) for 0.00 to 20.00 mg/L (ppm) ±5 % of reading for 20.00 to 50.00 mg/L (ppm) ±1.5 % of reading ± 0.1 % for 0.0 to 200.0 % saturation ±5 % of reading for 200.0 to 500.0 % saturation DO (HI6421P with HI764833 Polarographic probe) Range 0.0 to 300.0 % saturation; 0.00 to 45.00 mg/L (ppm) concentration Resolution 0.1 % saturation; 0.01 mg/L (ppm) Accuracy ±1.5 % of reading ±1, least significant digit Input for USB-C ¦ash or PC cable Power button Ethernet port Peripherals port Input for power cable Dissolved Oxygen probe connection port Rear Ports Electrode Holder HI6421 and HI6421P is supplied with an electrode holder featuring a ¦exible arm. The holder can be mounted on either side quickly and provides secure support for electrodes while taking measurements in sample containers. Input for USB-A ¦ash (x2) or keyboard 6 Dissolved Oxygen 6.12 | www.hannainst.com benchtop
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