Specifications HI98294 pH / mV Range* 0.00 to 14.00 pH / ±600.0 mV Resolution 0.01 pH / 0.1 mV Accuracy** ±0.05 pH / ±3.0 mV Calibration one point using HI9828-20 Quick Calibration Standard Solution up to three points using pH 4.01, pH 6.86, pH 7.01, pH 9.18, pH 10.01 standard buffers and one custom buffer; ORP Range ±2000.0 mV Resolution 0.1 mV Accuracy** ±10 mV Calibration automatic at one custom point (relative mV) Dissolved Oxygen Range 0.0 to 500.0 % saturation; 0.00 to 50.00 ppm (mg/L) Resolution 0.1% saturation; 0.01 ppm (mg/L) Accuracy** ±1.5 % of reading from 0.0 to 200.0 % saturation; ±5 % of reading from 200.0 to 500.0 % saturation; ±1.5 % of reading from 0.00 to 20.00 mg/L; ±5 % of reading from 20.00 to 50.00 mg/L Calibration one p oint, quick calibration in water-saturated air; one or two points, at 100 % and 0 %; one point, using a custom solution (% saturation or mg/L); Pressure Compensation Automatic 450 to 850 mmHg EC Range 0 to 200 mS/cm; 0 to 400 mS/cm (absolute) Resolution manual: 1 µS/cm; 0.001 mS/cm; 0.01 mS/cm; 0.1 mS/cm; 1 mS/cm; automatic: 1 µS/cm from 0 to 9999 µS/cm; 0.01 mS/cm from 10.00 to 99.99 mS/cm; 0.1 mS/cm from 100.0 to 400.0 mS/cm; automatic (mS/cm): 0.001 mS/cm from 0.000 to 9.999 mS/cm; 0.01 mS/cm from 10.00 to 99.99 mS/cm; 0.1 mS/cm from 100.0 to 400.0 mS/cm Accuracy** ±1% of reading or ±1 µS/cm whichever is greater Calibration One point, using HI9828-20 Quick calibration solution; One point, using six standard solutions (84 μS/cm, 1413 μS/cm, 5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm, 111.8 mS/cm) or custom point Resistivity Range 0 to 999999 Ω·cm; 0 to 1000.0 kΩ·cm; 0 to 1.0000 MΩ·cm depending on resistivity reading Resolution 1 Ω·cm; 0.1 kΩ·cm; 0.0001 MΩ·cm Calibration Based on conductivity or salinity calibration TDS Range 0 to 400000 ppm (mg/L) (the maximum value depends on the TDS factor) Resolution manual: 1 ppm (mg/L); 0.001 ppt (g/L); 0.01 ppt (g/L); 0.1 ppt (g/L); 1 ppt (g/L); automatic: 1 ppm (mg/L) from 0 to 9999 ppm (mg/L); 0.01 ppt (g/L) from 10.00 to 99.99 ppt (g/L); 0.1 ppt (g/L) from 100.0 to 400.0 ppt (g/L); automatic ppt (g/L): 0.001 ppt (g/L) from 0.000 to 9.999 ppt (g/L); 0.01 ppt (g/L) from 10.00 to 99.99 ppt (g/L); 0.1 ppt (g/L) from 100.0 to 400.0 ppt (g/L) Accuracy ±1% of reading or ±1 ppm (mg/L) whichever is greater Calibration based on conductivity or salinity calibration Salinity Range 0.00 to 70.00 PSU Resolution 0.01 PSU Accuracy ±2% of reading or ±0.01 PSU, whichever is greater Calibration One point, using a custom solution Seawater Sigma Range 0.0 to 50.0 ıt, ıÎ, ıÏÐ Resolution 0.1 ıt, ıÎ, ıÏÐ Accuracy ±1 ıt, ıÎ, ıÏÐ Calibration based on conductivity or salinity calibration Turbidity Range 0.0 to 99.9 FNU; 100 to 1000 FNU Resolution 0.1 FNU from 0.0 to 99.9 FNU; 1 FNU from 100 to 1000 FNU Accuracy** ±0.3 FNU or ±2% of reading, whichever is greater Calibration automatic, up to three points using 0 FNU, 20 FNU, 200 FNU, or custom Atmospheric Pressure Range 450 to 850 mm Hg; 17.72 to 33.46 in Hg; 600.0 to 1133.2 mbar; 8.702 to 16.436 psi; 0.5921 to 1.1184 atm; 60.00 to 113.32 kPa Resolution 0.1 mm Hg; 0.01 in Hg; 0.1 mbar; 0.001 psi; 0.0001 atm; 0.01 kPa Accuracy ±3.0 mmHg within ±15 °C from calibration temperature Calibration automatic at one custom point Temperature Range* −5.00 to 50.00 °C; 23.00 to 122.00 °F; 268.15 to 323.15 K Resolution 0.01 °C; 0.01 °F; 0.01 K Accuracy ±0.15 °C; ±0.27 °F; ±0.15 K Calibration automatic at one custom point *The range may be limited by the sensor limits. **evaluated with a calibrated system at ambient temperature. 7 Multiparameter 7.50 | www.hannainst.com portable
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