Specifications HI88703 Non-ratio Mode Range 0.00 to 9.99; 10.0 to 40.0 NTU 0.0 to 99.9; 100 to 268 Nephelos 0.00 to 9.80 EBC Resolution 0.01; 0.1 NTU 0.1; 1 Nephelos 0.01 EBC Ratio Mode Range 0.00 to 9.99; 10.0 to 99.9; 100 to 4000 NTU 0.0 to 99.9; 100 to 26800 Nephelos 0.00 to 9.99; 10.0 to 99.9; 100 to 980 EBC Resolution 0.01; 0.1; 1 NTU 0.1; 1 Nephelos 0.01; 0.1, 1 EBC Additional Specifications Range Selection automatic Accuracy ±2% of reading plus 0.02 NTU (0.15 Nephelos; 0.01 EBC); ±5% of reading above 1000 NTU (6700 Nephelos; 245 EBC) Repeatability ±1% of reading or 0.02 NTU (0.15 Nephelos; 0.01 EBC) whichever is greater Stray Light < 0.02 NTU (0.15 Nephelos; 0.01 EBC) Light Detector silicon photocell Light Source/ Life tungsten filament lamp / greater than 100,000 readings Display 40 x 70 mm graphic LCD (64 x 128 pixels) with backlight Method nephelometric method (90°) or ratio nephelometric method (90° & 180°), adaptation of the USEPA method 180.1 and standard method 2130 B Measuring Mode normal, average, continuous Turbidity Standards <0.1, 15, 100, 750 and 2000 NTU Calibration two, three, four or five-point calibration Log Memory 200 records PC Interface USB Environment 0 to 50°C (32 to 122°F); max 95% RH non-condensing Power Supply 230/115 Vac; 50/60 Hz) Dimensions 230 x 200 x 145 mm (9 x 7.9 x 5.7”) Weight 2.5 kg (88 oz.) Ordering Information HI88703-01 (115V) andHI88703-02 (230V) is supplied with sample cuvettes and caps (5), calibration cuvettes (HI88703-11), silicone oil (HI98703-58), cuvette wiping cloth, power cord, instrument quality certificate, and instruction manual. See page 12.24 for standards and accessories Calibration The HI88703 has a powerful calibration function that compensates for lamp aging or changing. A two, three, four, or ve-point turbidity calibration can be performed by using the supplied (<0.1, 15, 100, 750, and 2000 NTU) standards. Calibration points can be modied if user-prepared standards are used. AMCO AEPA-1 Primary Turbidity Standard The AMCO AEPA-1 supplied standards are recognized as a primary standard by the USEPA. These non-toxic standards are made of styrene divinylbenzene polymer spheres that are uniform in size and density. The standards are reusable and stable with a long shelf life. GLP Data The HI88703 features complete GLP (Good Laboratory Practice) functions that allow traceability of the calibration conditions. Data includes calibration points, date, and time. Data Logging Up to 200 measurements can be stored in the internal memory and recalled at any time. Data Transfer Logged data can be downloaded to a Windows compatible PC using the USB port and the HI92000 software. Tutorial Mode Tutorial mode provides additional information during measurements. When enabled, the instrument displays explanations and a conrmation button when a preparation or other operation has to be performed. Contextual Help Contextual help is always available through a dedicated HELP button. Clear tutorial messages and directions are available onscreen to guide users through setup and calibration. The help information displayed is relative to the setting/option being viewed. 12 Turbidity EPA meters 12.11 www.hannainst.com |
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