Turbidity Hanna HI 88703

Turbidity Hanna HI 88703 Precision Turbidity Benchtop Meter, EPA Compliant • Two measuring ranges: Ratio turbidity, non-ratio turbidity • Meets USEPA requirements • GLP features • Two, three, four or five point turbidity calibration • USB PC connectivity • Log up to 200 measurements • Contextual help and tutorial mode The HI 88703 turbidity benchtop meter is specially designed for water quality measurements, providing reliable and accurate readings on low turbidity ranges. This instrument has an EPA compliance reading mode which rounds the reading to meet EPA reporting requirements. Alternative EBC and Nephelos measuring units are available. Depending on the measured sample and needed accuracy, normal, continuous or signal averaging measurement can be selected. A two, three, four or five-point calibration could be performed by using the supplied standards. When user prepared standards are used, calibration points can be modified. H 88703 features complete GLP ( Good Laboratory Practice) functions that allows traceability of the calibration conditions. The last calibration points, time and date can be checked. Up to 200 measurements can be stored in internal memory. Data can be transferred to a PC via optional HI 920013 USB cable and HI 92000 Windows® compatible software. Order Information: HI 88703-01 ( 115V) and HI 88703-02 ( 230V) is supplied with sample cuvettes and caps ( 5) , calibration cuvettes, silicone oil ( HI 93703-58) , tissue for wiping cuvettes, power cord and instruction manual. Range Non Ratio Mode 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 Ratio Mode 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 Non Ratio Mode 0.01; 0.1 NTU 0.1; 1 Nephelos; 0.01 EBC Ratio Mode 0.01; 0.1; 1 NTU 0.1; 1 Nephelos 0.01; 0.1, 1 EBC Range Selection automatic Accuracy 25° C ± 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 Method Nephelometric method ( 90° ) or Ratio Nephelometric Method( 90° & 180° ) , Adaptation of the USEPA Method 108.1 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 Light Source/ Life tungsten filament lamp / greater than 100, 000 readings Display 40 x 70 mm graphic LCD ( 64 x 128 pixels) with backlight Log Memory 200 records PC Interface USB Environment 0° C ( 32° F) to 50° C ( 122° F) ; max 95% RH non-condensing Power Supply 230 V/ 50 Hz or 115 V/ 60 Hz 20 W; auto-off after 15 minutes of non-use Dimensions 230 x 200 x 145 mm ( 9 x 7.9 x 5.7” ) Weight 2.5 Kg ( 88 oz.)